In the circular case, instead of the operating frequencies being related to rectangular resonances, they will be related to circular resonances defined by cylindrical Bessel functions. docx 1 / 16 Microstrip Antennas- Rectangular Patch Chapter 14 in Antenna Theory, Analysis and Design (4th Edition) by Balanis Shown in Figures 14. Schematic representation of a PCB patch antenna: The calculator is based on simplified formulas for calculating microstrip transmission lines and is intended for preliminary calculation only. For fixed line impedance on microstrip (such as fifty ohms), dielectric loss is almost constant for any thickness substrate. Such a circuit will deliver an exact cutoff frequency of. The IPC Formulas and Wadell’s Method. Try This New Tool. The line inset is designed to set the input impedance looking into the edge of the patch to a target impedance. A taper with ten segments is chosen and in the table below the. It can calculate low-pass, high-pass and bandpass lumped-element Chebyshev filters, of third, fourth and fifth order (N=3, N=4 and N=5). P. This calculator determines the impedance of a symmetric differential stripline pair. The required inputs are the Dk value for the dielectric constant of the PCB substrate, and the. Changed the microstrip impedance calculator formula to a complex version for accuracy. Discrete and Microstrip Coupler Design - Chapter 7. A microstrip patch antenna is one of the most popular microwave antennas. This calculator requires symmetry in the trace widths and location between plane layers. VSWR Calculator. It seems likely JLC is using the latter formula. If VSWR is known, then the reflection coefficient (Γ), return loss (RL), and mismatch loss (ML) is calculated by using following formulas. The substrate parameters (ε r and h) and the frequency of interest are required. In my fab, if I use 0. The electrical parameters may be determined from specified physical parameters, or the physical parameters required to meet a given set of electrical parameters may be found. Figure 3. For example: Yellow Violet Red Gold: 4 7 x100 ±5% = 4700 Ohm, 5% tolerance. 3048 to convert them to meters. Crosstalk occurs when a signal "jumps" from one trace to another, a phenomenon that is unintentional and often unwanted. Crosstalk is unwanted coupled energy between traces. (© CC BY SA 3. Light weight. Enter the target impedance, trace thickness, dielectric thickness and relative dielectric constant to get the width of the microstrip and its radiation. BLACK FRIDAY: 🎉 El 24 de Noviembre habrá 50% de DESCUENTO en todos los Productos de mi TIENDA 🎉 Descartar. 04/03/2007: Microstrip Patch Antenna: From Simulation to Realization added in the TutorialsTools section. It consists of a rectangular metal patch on a dielectric substrate and is excited by a voltage source across the metal patch and the bottom ground plane of the substrate. V1 and V3 are the voltages at the input and coupled port, respectively. Inductance: L =. Advertisement. V. One option for impedance matching is to use an inset, as shown in the image below. You need to enter the substrate parameters, the frequency, and the physical. Keep in mind that the conversions only hold exactly at one frequency, ω. Once you have the reflection coefficient, you can use it to calculate the S-parameters by comparing with your feedline impedance. Copy the side edges and translate the edges a distance of 1/7 of the microstrip line width. Go to. Calculating Inductance and Capacitance of a Bandpass Filter. A coplanar waveguide calculator will operate in one of two ways. ; εr is the relative permittivity (dielectric constant) of the material between the microstrip and the ground plane. THESE FORMULAS ARE. Transcalc. Calculate Microstrip impedance for given PCB parameters. The spacer material is. 4. Noise Conversion Calculator. Some research groups have studied about the equations for the formulation of microstrip radial stubs [27, [29] [30] [31]. eu. Edge Coupled Stripline Differential Impedance Calculator. This paper provides details on how to investigate a new method of teaching microstrip patch antenna design made by Metamaterials using MATLAB. T-Match Topology. The measured phase difference between the balance ports was within 180° ±3° from 1. 2 Overview of Microstrip Antenna A microstrip antenna consists of conducting patch on a ground plane separated by dielectric substrate. Microstrip Transmission Line Calculator Using IPC-2141 Equation. Tech. The skin depth depends upon the operating frequency and resistivity & relative permeability of the material. To use this tool, enter the values for. TransLine. 98mil. High and low pass filters are simply connected in series. An example of a wire microstrip might most often be found in prototypes or reworked boards where a wire is used over the top of pcb or copper clad material. The rule of thumb is approx 1/3 of the distance between the two edges. Microstrip is a type of electrical transmission line which can be fabricated with any technology where a conductor is separated from a ground plane by a dielectric layer. The input impedance, Zin, of the shorted microstrip line is shown in Figure 3. Tip: Use a planar multilayer substrate for the dielectric layer and ground plane. It uses linear interpolation, and is explained on this page. Here's microstrip on 10 mil quartz. Here's a simple spreadsheet that will help you understand the concept of frequency translators Saturn PCB - Toolkit for Impedance Calculation. 6 GHz UWB SYSTEMS . Email: info@multi-circuit-boards. The. 2. The substrate parameters (ε r and h) are required. 6 GHz. Using this formula, you can calculate the characteristic impedance of a. Patch antenna online calculator. A coupled line RF filter was designed and working prototypes of the design performed well. 1. **Note: All of our calculators allow SI prefix input. At the same time, the gap between the ground planes and the signal line is widened to retain a 50 Ω characteristic impedance in order to match that of the microstrip line,Both can be realized in microstrip, stripline or even coax, but stripline is the go-to technology for coupled-line couplers. Wr is a correction factor defined as Wr = W + 1. 05/25/2007: Printed Dipole Antenna using. 04/02/2007: Ansoft Designer Planar EM Simulation of a microstrip transmission line added in the TutorialsTools section. For example, microstrip = microstripLine (Length=0. Use the following equation to calculate the stripline trace layout propagation delay. In radio technology, crosstalk is a phenomenon wherein a signal in a conductor jumps to an adjacent conductor. The waveguide width determines the lower cutoff frequency and is equal (ideally) to ½ wavelength of the lower cutoff frequency. For this reason, trace width is important in the design of striplines. The prototype built can be used UWB in communications or localization systems. This tool calculates backward crosstalk which is usually the dominant crosstalk component. 1 Design of circular microstrip antenna The geometry of circular microstrip antenna is shown fig. α s is the attenuation constant of the aggressor. Description. “468” is the constant used to convert frequency in MHz to feet. 66, the trace height is 1. INPUT DATA. In the lumped and distributed form, they are extensively used for both commercial and military applications. Modeling approximation can be used to understand the impedance of. Microstrip is a single trace on the top layer, with no ground close to it on the same layer. 1 3. Remove the solder mask on top of the filter. Simons, "Coplanar Waveguide Circuits, Components, and Systems", Wiley. Dielectric loss in a PCB transmission line. Wavelength Calculator. This microstrip impedance calculator gives you a good start for estimating the trace width and PCB dielectric thickness that will produce a target impedance value. While this calculator will provide a baseline, any final design considerations should be made towards loss, dispersion, copper roughness, phase shift, etc. Use this calculator to analyze or synthesize microstrip transmission lines with different substrate parameters, such as relative permittivity, loss tangent, conductor resistivity, height, thickness, frequency, and angle. 3%, are. Go to the. The formulae to calculate the dipole antenna and leg length are: L = 468 / f, l = L /2, where: L - Length of the dipole antenna in feet; l - Length of each arm of the dipole in feet; and. 06/11/2010: Apple Claims Iphone 4 Has Novel Antenna Design added. Many conductor properties are frequency dependent and dynamically affect electromagnetic characteristics of circuitry and systems. • Coplanar wave guide. If the parameters exceed the allowable ranges, the curve-fit models blow up. Eq. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. Use the add function to form the circuit and use the ports numbers as shown in the circuit above. Both pi filter and T filter section filter topologies are covered. Multiply the result by the square root of the ratio of (1 + (2 * h / w)) to (1 – (2 * h / w)). The characteristic impedance (Z o) of coplanar waveguide with ground or microstrip lines with signal side ground plane can be calculated using the active calculator or the equations at the bottom of the page. This implies that the resulting transmission line resonators are one-quarter wavelength long at 2 f 0 (i. To learn more about the capabilities of EMI Analyst, sign up to access our download area or. There are a number of pcb transmission line typologies. 2 and compare that to embedded stripline with 1. 6 ohms and Z even = 110 ohms for your geometry, very close to your result. J. example. The Skin depth is the depth from the conductor surface at which the current density decreases to 1/e (= 0. The best ECAD software will include a field solver-based model. 2 enable the electrical characteristics to be determined given the material properties and the physical dimensions of a microstrip line. V xtalk = (0. Resistance calculated using this tool includes both dc and ac resistance of microstrip conductors. To use this calculator, simply input your microstrip geometry and Dk value, and the tool will return the differential impedance value for a pair of microstrip traces. This calculator is designed to calculate the inductance of a microstrip given its dimensions (width, length and the distance of the strip from the ground plane). 09/08/2007: Online VSWR calculator added. Tech. This RF filter calculator is used for microstrip filter calculations. For typical PCB parameters (ε r = 4, H 1 = 61. For more general patch antenna. Note that a quarter-wave length transformer was used to match the patch to a 50 Ohm feed line. The length of a half-wavelength dipole can be calculated by the given formula: L =. In this measurement, a voltage source is used to excite Port 1 and the received signal at. At low frequencies near 0 GHz, the input impedance is inductive since. 4. Following is the list of useful converters and calculators. To use this calculator, simply input your microstrip geometry and Dk value, and the tool will return the differential impedance value for a pair of microstrip traces. In addition, our bandpass calculator reduces the effort thereof. on1. This calculator finds both odd and even transmission line impedance. There are four different types of impedance used in characterizing differential trace impedances. 6 mils line width, and the effective dielectric constant is 6. The linked article below contains a free microstrip line calculator that can be used in your web browser. Do all your RF calculations using this application. The Impedance Calculator evaluates single-ended and differential impedance for various impedance models. Theory of coupled line couplers For two transmission lines coupled together to form a four-port. Therefore doubling the thickness cuts the metal loss in half, but does nothing to loss tangent loss. Visit to learn more about our other electrical engineering tools and resources. Loop Inductance Calculator. This calculator provides accurate microstrip transmission line analysis and synthesis. Units do not matter as long as they are consistent - use the same units for w, h, and t. To use this tool, enter the values for. The characteristic impedance (Z o) of a microstrip transmission line can be calculated using the active calculator or the equations at the bottom of the page. This spreadsheet is used to calculate inductor and capacitor values for Chebyshev filters. O. 1977. f if the frequency of the RF signals. Width (w) Trace Thickness (t) Dielectric Thickness (h) Relative. 1t + 2. Metal loss is reduced by thicker substrates, and is almost inversely proportional. Rectangle Loop Inductance Calculator. everything RF has created a series of RF calculators to help engineers and students with common calculations that they need to conduct frequently. In CBCPW, not. Microstrip Line Calculator Analyze or synthesize a microstrip line based on substrate parameters and frequency. Calculate the impedance of a microstrip transmission line with a PCB using this online tool. *Accurate for arbitrary values of Er and w/h ratios. A microstrip transmission line consists of a narrow metallic trace separated from a metallic ground plane by a slab of dielectric material, as shown in Figure 7. This calculator is designed to determine the magnitude of the crosstalk on a stripline if its dimensions and source voltage is provided. Our free impedance for PCB Microstrip Line Calculator can help you with your design features to ensure your PCB is a working as you intend. Wire Self Inductance. A stripline is similar to the microstrip except that the flat conductor is now inside the. Stripline is a transmission line trace surrounded by dielectric material suspended between two ground planes on internal layers of a PCB. 7 characteristic impedance 50 Ω . Each Port is matched to the characteristic impedance Z 0 of the single, isolated microstrip transmission line. This includes design capture, simulation, and displaying simulation results. ( 0. Click design guide at this link. Use this calculator to analyze or synthesize microstrip transmission lines with different substrate parameters, such as relative permittivity, loss tangent, conductor resistivity,. That means on ten mil (254 micron) alumina, the width for fifty ohm microstrip will be about 9. Bookmark. For more general patch antenna. It's just a trace on an outer layer over a sufficiently large area of ground plane on another layer. Relative Dielectric Constant ( εr ): Track Width: mm. Download the reverse microstrip calculator. 5 resin). This calculator assumes the distance between the two reference planes to be an equal distance. Just to give designers a starting point, take a look at these differential impedance calculators you can use to get an initial estimate of the differential impedance for microstrips and striplines. There are many demands placed on PCB stackup design. To use it, first select the tolerance of the resistor: 10%, 5% or equal or smaller than 2%. Note: Units do not matter for this calculation as long as they are consistent. The shape of microstrip antenna can be rectangle, square, ellipse, circle, triangle, ring, pentagon, or their variations4–6. microstrip antenna is the best choice for modern wire-less and mobile applications4–6. Overview. ANSOFT CORPORATION HFSS FIELD CALCULATOR COOKBOOK INTRODUCTION feature of Ansoft’s HFSS Version 7. For example, filterHairpin (Resonator=ubendMitered) creates a hairpin filter with a mitered u-bend element as the resonator. A filter is a reactive network that passes a desiredMicrostrip lines will experience more ohmic loss with reduced conductivity. 3 kΩ × 47 nF) = 1. FILTSoft is a user friendly filter design tool to aid, guide and expedite calculations from lumped elements level to microstrip structure. This calculator will help you calculate the guided wavelength, provided the dimensions of the microstrip are given as well as the velocity of propagation, the microstrip material's dielectric constant, and the input. PI Network Impedance Matching. For example, if you wish to input "25000000", just type "25M" instead. There are four different types of impedance used in characterizing differential trace impedances. The characteristic impedance (Z o) of a microstrip transmission line can be calculated using the active calculator or the formula at the bottom of the page. 24-25. Atwater,“Simplified Design Equations for Microstrip Line Parameters”, Microwave Journal, pp. As the εr increases, the propagation delay (tPD) also increases. Going Forward with a Trace Impedance Calculator. 293, 50% of the copper removal can be achieved. It also provides examples and references for further reading. Inductance: L =. If there is something in the microwave universe that you need a different calculator for, drop us a note and we'll see what we can. A rectangular microstrip patch antenna is designed and simulated with CST software using 0. In most practical cases, the dielectric substrate is electrically thin, that is, h ≪ λ. This Mantaro calculator tells me that I need a trace width of 11. 2. Visit to learn more about our other electrical engineering tools and resources. Compared with metal waveguides, it is small in size, light in weight, bandwidth in use, high in reliability and low. Reference: R. This tool calculates the matching network necessary to terminate a line of the specified characteristic impedence (Z o) in a specific complex load impedence (R L + jX L) at a specified frequency. Index Terms-Microstrip patch antenna, MATLAB calculator, CST, 2. This form of microstrip is composed of two traces. Therefore doubling the thickness cuts the metal loss in half, but does nothing to loss tangent loss. With PCBWay impedance calculator, you can calculate the approximate impedance of your PCB / high frequency circuit board. It is suitable for the production of flat structure transmission lines of microwave integrated circuits. 6 GHz f Higher - Microstrip = c / ( 4 h ε r − 1) = 10. 8. 12BVO/0. Height: Height of the substrate. 6. Consider the microstrip antenna shown in Figure 1, fed by a microstrip transmission line. The MWI-2017 Microwave Impedance Calculator software doesn’t replace sophisticated. Moreover, based on the simulation, the antenna with the. 3. Assumptions and Limitations. Description. An embedded microstrip is a microstrip transmission line or flat conductor separated from the ground place via a dielectric material. Phase Noise Under Vibrations Calculator IP3 Intermodulation Calculator. There is also a dielectric material placed above the conductor. To use it, first select the tolerance of the resistor: 10%, 5% or equal or smaller than 2%. 1 3. Microstrip Line Calculator Analyze or synthesize a microstrip line based on substrate parameters and frequency. 4, 4, 5, 4. Microstrip Resistance. 37 mil), the deviation of the calculated. The designed balun exhibits good performance. coupledmicrostrip = coupledMicrostripLine creates a default coupled microstrip transmission line with a Teflon substrate and default properties for a resonating frequency of 1. The dielectric material and the air above the microstrip makes it a transmission line with the inhomogenous dielectric. Here's an example: consider microstrip-on-GaAs with loss tangent=0. 11) the required electrical length of the taper at 8 GHz is. 1 of the Microstrip Calculator using H2 in place of h, εr,eff can be computed as specified in Eq. SAVE & ACCEPT. Resources listed under Antenna Calculators category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. The waveguide port extension coefficient for operation in frequency range of 0 to 8 GHz for a microstrip line width of 4. The Pi match circuit is so named because the circuit topology can resemble a pi symbol. 72mil. EEWeb offers a free online broadside coupled stripline impedance calculator. This is the basic principle of microstrip and stripline directional couplers. Matching T Attenuator A two part calculator which gives ideal and preferred value resistors, showing most formulas used and a link to the others. These dominant modes are for this case. The length of a half-wavelength dipole can be calculated by the given formula: L =. Identify best matched Rogers' bonding material by sorting according to design attributes. Access technical papers, white papers, calculators, tools and more for circuit laminates, prepreg and bonding materials. Description. C is the capacitance of the microstrip. w h = 2 π[(dεr − 1) − ln(2dεr − 1)] + (εr − 1) πεr [ln(dεr − 1) + 0. Co: capacitance per unit length. There are two types of crosstalk: forward and backward. For example, if u = 1 and ε r = 10, then from the figure, Z 0 ε e = 126 Ω and ε e / ε r = 0. Choose from different models of microstrip, edge coupled, wire, embedded, or stripline, and adjust the input and output parameters. The MWI-2017 Microwave Impedance Calculator software is able to calculate key parameters for most common microwave transmission lines, including microstrip, stripline, and coplanar-waveguide transmission lines. A single microstrip was analyzed results obtained for a parallel coupled microstrip band pass and then used for coupled line sections by making some filter for WiMAX applications at. This tool will also compute the resistance of the microstrip, the voltage drop, and the power. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. This calculator assumes the distance between the two reference planes to be an equal distance. 2 of the Microstrip Calculator, h=H1 and b=H2-H1. This calculator is designed to calculate the characteristic impedance of an edge coupled stripline. icrostrip line: H. 1) describes the series connection of short- and open-circuited stubs having characteristic impedances of Z 0 / 2 and half the original electrical length. In all cases, the current is assumed to flow in the outer surface of the. Select the box with the geometry that you would like to calculate. Compared to waveguides, microstrip is generally has a lower power handling capacity, and higher losses due to the fact that it is not enclosed. 2 (t / h) 2 for W/h > 1. Differential Impedance of. Ω/mΩ/in. So, the dielectric at my 5-6GHz frequency range is 3. Choose from different models of microstrip, edge coupled, wire, embedded, or stripline,. Thickness: Thickness of the stripline conductor. The microstrip patch antenna calculator determines the length (L) and width (W) of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. 223 × I s × h s × W s × e -αsD) / (2πε r) Where: I s is the aggressor current (current in the aggressor microstrip) in amperes. The phase is mostly + 90 ∘ or − 90 ∘, indicating that Zin is mostly reactive. Microstrip antennas fluctuate in impedance hanging on the plangency frequency, polarity, prototype, and explicit patch composition. The asymmetric stripline transmission line is most commonly found in a pcb. Both formulas of the dielectric, as well as the total losses, agree. Large selection of online interactive calculators for RF design, including attenuators, capacitance, resonance, RF traps, and microstrip impedance. Running this code with Octave/Matlab is a better way to design a hairpin filter than my calculator but it takes tens of minutes per simulation, depending on the frequency range, mesh size and of. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. The microstrip coupling lines provide the input/output coupling and its strength are determined by the gap width and length (S 2, L 2 and S 3, L 8). High-quality circuit boards as prototype and series at reasonable prices. The edge couple differential microstrip transmission line is a common technique for routing differential traces. Description. You can build an RC low-pass filter with a cutoff frequency of 1 kHz using a 3. The transmission line types and the reference of their mathematical models are listed below: M. For an embedded (internal) microstrip, the formulas provided in paragraph 4. This tool calculates backward crosstalk which is usually the dominant crosstalk component. [1] This paper constructs a simple formula of distribute conductance of a microstrip line and then of the dielectric attenuation with only one arbitrary constant, p = 1. The transmission line types and the reference of their mathematical models are listed below: • Microstrip line: – H. Microstrip Transmission Line Models The impedance Z 0 of a transmission line consisting of a circular signal conductor having a diameter d and centered between parallel ground planes separated by a distance h is given by: This web page allows you to calculate the width and length of a microstrip line for a given impedance, electrical length, or vice versa. Re: Microstrip feed line. Microstrip lines are used to convey microwave -frequency signals. Technical Overviews. 2. RADAR tutorial Radar Measurements Doppler Radar FMCW RADAR RADAR BANDs RADAR SCOPE Weather Radar Ground Penetrating Radar System. There's nothing special about microstrip. Rectangular Waveguide Sizes. Usually Microstrip separated from the ground by using dielectric substrate. AsPasternack's RF calculators and conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. 2, physically exactly the same thing, but the second has a piece of metal on top, and the embedded microstrip gives a lower value. Description. Using this calculator, the the transmission line theory. txline = txlineMicrostrip creates a standard microstrip transmission line object. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. The Number that follows "WR" is the width of the waveguide opening in mils, divided by 10. This calculator can. The substrate parameters (ε r and h) are required. Rectangle Loop Inductance Calculator. The. The spacer material is. More complex vari-ations on the basic shapes are frequently used to meet particular design demands and in terms of polarization,a microstrip section. Free Space Path Loss Calculator. It is similar in function to capacitors and inductors but only for very high frequencies. Amongst them are a Smith chart s-parameter plotter, a lumped element balun designer, a microstrip calculator, a mixer spurious product calculator, and thermal dissipation calculator. This assumes ~0 trace thickness. A microstrip line is a microwave transmission line composed of a single conductor strip supported on a dielectric substrate. James, Experimental Characterization of Microstrip Bends and Their Frequency Dependent Behavior, 1973 IEEE Conference Digest, October 1973, pp. For example, if you wish to input "25000000", just type "25M" instead. Acknowledgements: The source for formulas used in this calculator (except where otherwise noted) is the Design Guide for Electronic Packaging Utilizing High-Speed Techniques (4th Working Draft, IPC-2251, February 2001. In some cases, users require a custom impedance value. Microstrip lines' primary functions are transferring power from one point to another, dividing or combining power. So it should be possible for the velocity to change without the characteristic impedance changing, but. Calculate the width of a microstrip transmission line with this online tool. Tpd: propagation delay. The relation between the R, Zo, and amount of power division is given by the following formula. 5. Fig. Microstrip Characteristic Impedance and Capacitance Calculator. The different formulas used for the microstrip calculators give different results. The electrical parameters may be determined from specified physical parameters, or the physical parameters required to meet a given set of electrical parameters may be found. Width (w) Trace Thickness (t) Dielectric Thickness (h) Relative dielectric constant (εr) Calculate Reset Result Single Ended Impedance Ω Propagation Dealy ps/inch This calculator helps you compute the characteristic impedance of a microstrip, a flat conductor suspended over a ground plane with a dielectric between them. 06/08/2009: EM Talk Store added - find discount microwave engineering components and devices. The differential impedance will be a bit less than 2x the single-ended impedance. In addition to the characteristic impedance of a transmission line, the tool also calculates. It is suitable for the production of flat structure. 1 Characteristic impedance of microstrip lines As seen in the previous section it is necessary to know the length and characteristic impedance of a line to determine its equivalent inductance. We recommend the software from Polar Instruments if you. The length of the dipole is usually one-half of the wavelength of the RF signals. Thanks. Conductor is assumed to have zero thickness and to have uniform height. The characteristic impedance is given by: Eq. Noise Conversion Calculator. This tool is designed to calculate the correct dimensions of a microstrip patch antenna if the operating frequency and the dielectric constant of the material used, is known. One should always check carefully whether a calculator implements these equations under the appropriate approximations. RF Converters and Calculators. The surface finish is neglected. T-Match Topology. Some of them include Microstrip, Stripline and Coplanar Waveguide. If output characteristic impedance has an output value than input impedance, then there is limited current flow. Changed the RO3250 Er to 3. Output. The free space path loss is the loss in signal strength of a signal as it travels through free space. Edge-Coupled Traces. This tool is designed to find the pcb impedance. The main takeaway for me: To get to around 80 ohms, I should not pull ground on the signal. The microstrip calculator determines the width and length of a microstrip line. This calculator is heavilly based on Transcalc. Calculates the resistance, inductance and capacitance per unit length of common low-loss transmission line configurations. Microstrip is unique and contains a Radio Frequency (RF) filter used in many applications such as RADAR, satellite, and wireless communications [5, 7]. i am talking about the small gap between the patch and microstrip. - Pi Attenuator Calculator. 6 mm thick PCB. Backwards crosstalk creates a pulse width. Output. The procedure given below explains how to use Linecalc to analyze such a structure. 3): fHigher-Microstrip = c/(4h εr − 1− −−−−√) = 10. The capacitance calculated using this tool is the capacitance between a flat conductor and two equidistant ground planes.