For example on 0. A microstrip is a type of transmission line in which a strip of a conducting material like copper is mounted on a dielectric material and routed to a ground plane. Where f = frequency, T = time. 1 The wavelength. 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 frequency. Data safety. 1. Assume microstrip line for which propagation occurs with wavelength 60% that. This tool allows you to find the guided wavelength inside a microstrip. WhatsApp. 75, Radiation Resistance = 347. A better estimate of the frequency where the higher-order microstrip mode becomes a problem is given by Equation (4. The range of dielectric constant (Er) over which the results are valid is 2 to 15. The UWB bandpass filter operating in the 3. - Bridged Tee Attenuator Calculator. Microstrip patch antenna. 2. The higher the value, the larger the loss. Check Details Calculator antenna plane sedan calculate quarter ground length designedThe resonant frequency of an LC Circuit is the frequency at which the inductive reactance and capacitive reactance of the LC circuit are equal. Patch antenna with a quarter-wavelength matching section. Frequency Domain Method: This calculator uses the frequency, either entered or calculated from risetime, to find the full wavelength in air and divide from that. The waveguide calculator makes it possible to calculate the TEmn / TMmn propagated modes for m = 0,1,2; n = 0. The microstrip patch antenna model used for the numerical simulation in Ansoft HFSS is shown in Fig. Our RF calculators and converters will provide the figures you need for your radio frequency engineering needs. All About Circuits is the largest online electrical engineering communities in the world with over 700K engineers, who collaborate every day to innovate, design, and create. 4. Waveguide ports represent a special kind of boundary condition of the calculation domain, enabling the stimulation as well as the absorption of energy. Input w, and click on [ Analyze ] button. This is a natural way to. = room temperature (25⁰C) L= Length of trace. This means that the internal environment in a wave solder oven is far more sensitive—a small change in temperature or conditions might result. 1 High Impedance; 4. A new microstrip tri-mode balun bandpass filter (BPF) with good filter-type and balun-type functions is presented. INPUT DATA. Easy to incorporate with other microstrip circuit elements and integrate into systems. 542 mm, a substrate height of 1. Figure 3. 1 Top view of Microstrip Patch Antenna The transmission line model described in chapter 3 will be used to design the antenna. In most practical cases, the dielectric substrate is electrically thin, that is, h ≪ λ. Tank Circuit Resonance Calculator RF Power Conversion Calculator Power Density Calculator Capacitance, Reactance, and Admittance Calculator Microstrip Wavelength Calculator Waveguide Calculator (Circular) VSWR / Return Loss Calculator T-Pad Attenuator Calculator Skin Depth Calculator RF Power Ratio. Using data given in Table 3. e. Fringing Fields for Microstrip Antennas. Wavelength: The wavelength is the distance between two consecutive points on a wave. [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. f: resonant frequency. See moreAnalyze. To maximize signal. Permittivity is what controls the value of a capacitor, beyond its physical dimensions. This is a required field. microstrip trace width calculator microstrip wavelength calculator most viewed n way power divider calculator noise figure calculatorThe strip of a microstrip line has a width of (0. Be aware that there are many microstrip impedance calculators on the Internet that give sometimes widely varying results. 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 3. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. Ω/mΩ/in. Also (20:Omega) line is about six times wider than a (50:Omega) line and so takes up a lot of room and there is a good chance that it could be close to other microstrip lines or perhaps the wall of an enclosure. Telegram. Coupling to Direct Line Insertion Loss Conversion Table for Directional Couplers. 7 between manufacturers [1]. 7 Microstrip Line. If the line width is 1 mm, and operated at 10 GHz, calculate 4. Analyze. They are mostly used at. Antenna Calculators:The simple Yagi Antenna is shown in the figure-1. Pasternack PCB Microstrip Calculator is an online calculation tool that lets you compute a microstrip's height/width ratio, impedance and relative dielectric constant for a microstrip transmission line. 3. Description. 6: Microstrip Design Formulas. 025 of a wavelength (1/40th of a wavelength) or the antenna efficiency will be degraded. Enter the relative permitivity, width of the trace, the ground plane spacing, and the substrate thickness to calculate the characteristic impedance. 3. 3 Summary. 4, tan ? = 0. Housing dimensions are selected for microstrip circuits (left) to minimize losses. Waveguide Calculator (Circular)The microstrip line calculator makes it possible to calculate the characteristic impedance of a microstrip line from the ratio between the width of the line and the height of the substrate as well as the parameters of the substrate. Power density from an isotropic antenna (at distance R) P D = P / 4πR2. If you want a thinner microstrip, you need to reduce the substrate height using one of the following solutions: Use a thinner 2-layer PCB, for example 0. This frequency to wavelength calculator helps you determine the wavelength of a waveform based on the frequency. Microstrip Patch Antenna Calculator; PCB Loop Antenna Calculator; Wokatenna Design; Yagi Uda Antenna Designer (NBS Tech. 946 for. Wavelength in microstrip line. Do all your RF calculations using this application. λ is the wavelength of the signal in free space. Enter the values of trace width (w), trace thickness. Added period input to Wavelength calculator. 5 Microstrip Line. Microstrip patch antenna input impedance in the fundamental mode (i, j, k) = (1, 0, 0). making a capacitor terminating the line look. Design a three-section maximally flat stepped-impedance transformer in microstrip to connect a \(Z_{S} =5\:\Omega\) source to a \(Z_{L} = 50\:\Omega\) load. Characteristic Impedance of the System (Z0) Ohms. The right-hand side of Equation (5. Microstrip band pass filters can be realized as End-Coupled half-wavelength resonator, Parallel-Coupled half-wavelength resonator, Hairpin-line Band Pass flters, Interdigital Band Pass filters, Combline filters, and half or quarter wavelength stub filter [4]. Frequency to Wavelength Calculator. The Josephson SQUIDs are designed on top of a 2 µm thick SiO 2 dielectric layer, c. When use the calculator, put values in the velocity of propagation field and the dielectric constant field. 4: Microstrip Transmission Lines. So it should be possible for the velocity to change without the characteristic impedance changing, but. The second layer, improve beam shaping and bandwidth. Where this comes from is this: at 10 GHz, the wavelength of a signal is 30 mm in air (300*10^8 m/s/10 GHz -> 3/100 m. )Microstrip has Faster Propagation Time. Solution: Given w =10−3 m, h =10−2 m, εr =2. Use a 4-layer board so you can achieve h ~= 0. Traces in printed circuit boards can often form broadside or edge pairs and may introduce unwanted inductance. The patch antenna is designed for 2. Dipole (i. Some are based on look-up tables, some completely hide their algorithms. A microstrip line is composed of zero thickness copper conductors on a substrate having ? = 8. 2 enable the electrical characteristics to be determined given the material properties and the physical dimensions of a microstrip line. The electrical length is represented by the phase shift in degrees. 1 (c). Our waveguides are low loss transmission lines capable of handling high power with high isolation. Note that this defines. It is identical to microstrip, but with ground planes both above and below the trace. The calculator is set up to handle an asymmetric arrangement, where traces are not centrally located in the PCB layer stack. edge coupled microstrip impedance calculator edge coupled stripline impedance calculator edge coupled trace inductance calculator eirp calculator. For example, if you wish to input "25000000", just type "25M" instead. The microstrip dielectric mode is a problem for narrow microstrip lines. Visit to learn more about our other electrical engineering tools. 11. 92. 1: 300-to- 50 Ω match using an quarter-wave section of line. Pasternack's Circular Waveguide Calculator will calculate the cutoff frequency for the device from its radius. This helps in transfer of energy from transmitter module to antenna. /. A microstrip is a type of transmission line that consists of a conductor fabricated on dielectric substrate with a grounded plane. The Q-factor of the resonator can be described as either a loaded Q-factor, unloaded Q-factor, or external Q-factor. The stepped-impedance lowpass microstrip filters, which use a cascaded structure of alternating high- and lowimpedance transmission lines. Equation $$\lambda = \frac{c}{f \sqrt{\epsilon_{R}}}$$ or $$\lambda = v_{p}\frac{c}{f}$$ Where: $$\lambda$$ = signal wavelength Microstrip line is a widely used transmission line and for the appropriate transmission its characteristic impedance has to be calculated while using it in RF design & circuits. RF calculations and RF conversions include metric. Waveguide will routinely be 10X better than this benchmark! For stripline and microstrip, the attenuation factor always decreases when characteristic impedance is reduced. Examples of what this means: 15 mil. The logarithmic scale on the horizontal axis allows for better illustration. 0300 meters. 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). c. The Physics. The relation between Time and frequency is given as. You can also specify the substrate and the characteristic impedance, and have Linecalc determine theThe impedance of that middle section can actually look very reactive as the length of the spacing between the grounding vias exceeds 1/8th of a wavelength. 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. Track Thickness: mm. Bandwidth, Rise Time and Critical Length Calculator TRY TOOL . 6, June 1991, by Goldfarb and Pucel. Where L is the length of the dipoles. Using a microstrip inductor calculator simplifies the process of designing and constructing these components, making it accessible for all engineers and scientists. Microstrip Wavelength Calculator. While commonly constructed using printed circuit boards, this structure can also be built using other materials as long as there is a conductor separated from. wavelength transmission line sections to provide ideal power divider characteristics. 57 mm thickness. 6 GHz frequency band is targeted to comply with the FCC spectral mask for UWB systems. E 0 is the permittivity of a vacuum. they are stationary), but are the result of interference between incident and reflected waves along a transmission line. . Light weight. Microstrip to waveguide transition is essentially a tapered microstrip line connecting microstrip of width ‘w’ to waveguide of width ‘A g’ as shown in Fig. Microstrip Wavelength Calculator. The intensity B of the magnetic field of a solenoid composed of coils wound in air (that is, without a ferromagnetic core) can be calculated using the following formula: where: μ 0 = 4Π x 10 -7 H/m is the magnetic constant (vacuum permeability) N is the number of turns. 11. , 60% of c c. Slotline, which may be used by itself or in association with microstrip, consists of a narrow slot or gap in a thin conductive layer on one side of a dielectric substrate of fairly high permittivity. This is a natural way to implement. The designed antenna has a resonating frequency of 2. )Stripline has Better Immunity to Crosstalk. And as a result, you have the wavelength of the dipole antenna. Our free impedance calculator for coplanar waveguide can help you with your design features to ensure your PCB is working as you intend. I am trying to calculate the wavelength on microstrip transmission lines. 946 for silver, or 1. Wavelength in microstrip line. Using this tool, you can calculate 3dB bandwidth (BW), fastest signal rise time (tr), critical length (lc), maximum data transfer rate (DTR), and maximum frequency content (Fmax). 8541878128 (13)×10 −12 F⋅m −1 ) To calculate a dielectric constant, divide the permittivity of the substance by the permittivity of a. With these tools, you can create reliable and functional. 37mm for a 50 ohm. VSWR to Return Loss. 3. Re: Microstrip design When you design transmission line (TL) frequency is not in the equations for geometry, only for losses. 1b shows the coupling scheme of the proposed diplexer. Embedded Microstrip Impedance Calculator This calculator helps you compute the characteristic impedance of an embedded microstrip. 11 quarter-wavelength antennas are used to Transformer antenna transmission microstrip wavelength impedanceAntenna dipole calculator formula seems seen come his original. Dielectric Thickness: mm. Calculate the power P r a d radiated by the antenna by integrating the radiation intensity ( U ( θ, ϕ)) over the infinite radiation sphere ( S ∞) P r a d = ∫ S ∞ U ( θ, ϕ) s i n θ d θ d ϕ. 5 + 1)/2 = 2. Everything RF has a page dedicated to calculators for RF applications. 4 (for typical FR-4. Facebook. This is a commonly used transmission line, as it can be cheaply fabricated using printed circuit board techniques. Frequency to Wavelength Calculator. 5: Microstrip Design Formulas. Compared to waveguides, microstrip is generally has a lower power handling capacity, and higher losses due to the fact that it is not enclosed. These will also slightly change the resonant frequency of the stub. As the name suggests, the length of this transmission line if fixed at a quarter of the wavelength (λ/4). 81. 1) describes the series connection of short- and open-circuited stubs having characteristic impedances of Z 0 / 2 and half the original electrical length. Several people have developed. 3048 to convert them to meters. The next step is to design the dimensions of the individual microstrip lines connecting the directional coupler using Table 5. A microstrip line is shown in Figure (PageIndex{7})(a). This antenna wavelength calculator can be used to determine the physical length of an antenna’s electromagnetic wave in free space. The trace resistance of a microstrip is important in determining how much power it dissipates. Result: Microstrip Patch Antennas (or simply patch antenna) are increasingly useful because the antenna is printed directly onto a circuit board. Bookmark or "Favorite" this page by pressing CTRL + D. 5. 1 (c). For example, if you wish to input "25000000", just type "25M" instead. 5. Fig. Select between microstrip or stripline. If ‘ε g’ is the wavelength in microstrip line then ‘Wt’ and ‘Lt’ can be determined by the relation given below from [8]: W t /A0. 3 Design Formulas for a Stripline. This calculator computes the trace width of a stripline if the maximum current, trace thickness, temperature rise, ambient temperature and length are given. 1 (a). microstrip = microstripLine creates a default microstrip transmission line using a Teflon substrate. It supports both balanced and unbalanced lines. 03 Updates & Additions: Added note when solving for conductor width. TRL works great, but it has a lower frequency limitation in. 2 permittivity and 1. 2. To behave similarly, the reactance of the tank inductor will be equal to 4/ π times the line impedance. Light weight. Overview. Gain. T. It assumes that the wave is traveling at the speed of light which is the case for most wireless signals. It is suitable for the production of flat structure transmission lines of microwave integrated. b) The characteristic impedance of the line. 3. 5. Introduction. The wavelength of an antenna is λ = c/f. These are much shorter than the associated guided-wavelength, so as to act as semilumped elements. All the very best. a) The effective relative permittivity of the substrate. For example, if you wish to input "25000000", just type "25M" instead. Height: Height of the substrate. The formulas for calculating the signal speed on a PCB are given below:. - MicroStrip Calculator - Cascaded Noise Figure Calculator - Resonant Frequency Calculator - Skin Depth Calculator. 6 is a quarter-wave transformer, a quarter-wavelength long line with a particular characteristic impedance which is used in two ways. The electrical length is converted to a length represented by degrees using a ratio of the electrical length relative to one wavelength, with one wavelength representing 360 degrees. Conversion Tables. Developers can show information here about how their app collects and uses. 4mm PCB for a trace width of 0. If VSWR is known, then the reflection coefficient (Γ), return loss (RL), and mismatch loss (ML) is calculated by using following formulas. 2 (t / h) 2 for W/h > 1. 3. 3. Step number two is used to find the width of the patch. The TEM wavelength is denoted by the lambda (λ), and the unit of the TEM wavelength is usually represented. If you know the mathematical expression, then you can assign a variable for it or use a field calculator. 4. Wavelength of the highest frequency signal, 𝛌 𝐦 = 𝐯/𝐟 𝐦. f. The microstrip patch is designed so its pattern maximum is normal to the patch (broadside radiator). 20 Apr 2021. Simons, "Coplanar Waveguide Circuits, Components, and Systems", Wiley. This work was supported in part by the U. Following is the list of useful converters and calculators. Example. When in doubt, use 1 for copper, . , they. Step 1: Calculation of the Width (W): The width of the Microstrip patch antenna is given by equation (3. 4269 GHz and 6. 1t + 2. In design, the physical dimensions must be determined given the desired electrical properties. Inputs Dielectric Constant Velocity of Propagation Input Frequency Output mm Microstrip Microstrip line. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. Using the substrate height, these are unnormalized to obtain the actual physical dimensions. For example, with microstrip, you can specify the substrate parameters (primarily thickness and dielectric constant) and use Linecalc to calculate the impedance for a given line width; this is the “analysis” mode. e. Assume microstrip line for which propagation occurs with wavelength 60% that of free space. A microstrip has one reference, often a ground plane, and these are separated by a dielectric. λ g is the wavelength in the dielectric material of the printed-circuit (pc) board. In the next couple of slides we're going to be looking at terms related to wavelength and frequency. This parameter is used for the loss calculations. 19. Though, fringing fields effects on the performance of antenna. This calculator is designed to calculate the signal wavelength in transverse electromagnetic mode if the dielectric constant or the velocity of propagation is known. 7. The microstrip width calculator uses the following parameters to calculate: Dielectric thickness (h) Target impedance (Zo) Relative dielectric constant (εr). Calculator 1: This calculates the Resonant Frequency of the LC tank circuit by entering the inductance and capacitance values. A Clemson ECE635 Project by Adam Schreiber and Jason Byers. Microstrip patch antenna input impedance in the fundamental mode (i, j, k) = (1, 0, 0). The formulas developed in Section 4. Easy to form a large array, spaced at half-wavelength or less. A microstrip is a type of transmission line in which a strip of a conducting material like copper is mounted on a. Microstrip Via Hole Inductance. 5 ext{ mm}), and the microstrip substrate is (1 ext{ mm}) thick and has a relative permittivity of (9) and relative permeability of (1). However, the minimum εe will be greater than 1 as electrical energy will be distributed in air and dielectric. Design a three-section maximally flat stepped-impedance transformer in microstrip to connect a (Z_{S} =5:Omega) source to a (Z_{L} = 50:Omega) load. At this stage the widths and spacings of the microstrip circuit are normalized. 1) Lg L W (X f ,Yf) Wg Feed Point Patch Ground Planespace wavelength λ 0 of the highest operating frequency (smaller than 0. One half-wavelength resonator of the high-frequency (f 2) signal path also provides port coupling function for the low-frequency (f 1. Saturn PCB Design Toolkit Wavelength calculator Calculates the wavelength of a signal using Ereff. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. 2. First the model of the microstrip patch antenna has to be drawn in HFSS. If the dielectric constant of the material is not known, you can choose to put in the velocity of. 71 Ω. 5 Microstrip Line. Here is a list of some of the calculators in this app: Attenuator Calculators. The best isolation results when a picket-fence of vias surrounds each transmission line, spaced at less than 1/4 wavelength. It consists of a quarter-wavelength transmission-line, whose input impedance can be easily calculated using the expression. Power to Voltage. (2) When the line width (w) of the characteristic impedance (Zo) is calculated. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. T = 1/f = 0. A microstrip line with (Z_{0} < 20:Omega) will be wide and there is a possibility of multimoding due to transverse resonance. Realisation of Low-pass Microstrip Filter Design a low pass filter for fabrication using microstrip lines. A node is a point on a standing wave of minimum amplitude. The formulas developed in Section 3. - Balanced Attenuator Calculator. 11g WiFi operates between 2412 MHz and 2462 MHz. For example for a frequency of 300MHz with a wavelength 1 metre, 0. Microstrip impedance calculator Mixer spur calculator mmWave Link Budget calculator Noise Figure/Temp converter Optimal Mitre calculator Path loss calculator Phase Noise to Jitter converter PLL PFD Frequency calculator PLL loop filter calculator Potential divider calculator Propagation time calculator Gamma to Impedance converter Reactance. 35 and 4. 1b shows the coupling scheme of the proposed diplexer. 05 λ o ) above the ground plane. 45 ghz, with quarter-wave microstrip line. Examples of TEM: Free space, Coax, Stripline, Waveguide. Figure 2. To realise the tri-mode BPF performance, the multimode stepped-impedance resonator is introduced and parallel coupled to both the balanced and the unbalanced ports. 45 for gold. The open nature of microstrip configuration su ffers from radiation. 3. Pasternack's RF Skin Depth Calculator are measurement calculation tools that allow you to input custom values, or choose from a list of commonly used material. Calculates the bandwidth of a digital signal and maximum trace length, using the IPC-2251 method or the frequency domain method, for transmission line effects. 8. At some point the amplitude will stay constant. Referring to Figure 5. Figure 3-7 shows a cross-sectional diagram of stripline. The wavelength is given by the formula: λ = v / f where λ is the wavelength, v is the speed of light in the medium, and f is the frequency of the signal. 0075e-6 meters. 34 RF / Microwave Design - Line Types and Impedance (Zo) Coplanar Waveguide)‘b’ should be less than λ/2 for best performance. Microstrip Calculator; Reactance Calculator; Percent Bandwidth; Resonant Frequency Calculator ; Skin Depth Calculator; Stripline Calculator; VSWR Calculator; Unequal. 5. Thickness: Thickness of the microstrip conductor. 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. n = Fresnel Zone number (>0) λ = c/f = wavelength. 2. 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. Our proposed antenna design is a high gain, bandwidth, very low. On our example FR-4 PCB operating at 6 GHz, a wavelength may be calculated from the well known formula as, Where F = MHz, λ (wavelength) = meters, Er = 4. 1 dB. Solution. 2 permittivity and 1. 2 (t / h) 2 for W/h > 1. Bandwidth Calculator & Max PCB Trace Length Calculator ; Calculates the bandwidth of a digital signal and maximum trace length, using the IPC-2251 method or the frequency domain method, for transmission line effects. The microstrip line is one of the most popular choices of transmission lines in microwave and RF circuits. 4. google_logo Play. Reflow soldering uses hot air, while wave soldering uses a 'wave' of solder to mass-produce PCBs. , n) is: Where, R = Radius of the Fresnel Zone in m/ft. VSWR Calculator. Crosstalk occurs when a signal "jumps" from one trace to another, a phenomenon that is unintentional and often unwanted. This is a required field. The size of a microstrip antenna is inversely proportional to its frequency. Sine waves may present voltage, current or some other parameter. However, it is difficult to suggest any. Waveguide Calculator (Circular) This tool calculates the cutoff frequency of a circular waveguide Scroll to continue. Wavelength (TEM) Calculator. Finisar - Wave Analyzer 1500S. Stripline Calculator. To determine the width (W), the microstrip patch antenna calculator was used to provide an initial starting point. Similarly,. Stripline guided wavelength: Microstrip guided wavelength: Note: The guided wavelength of a microstrip line can be given by equation 1, where λ 0 is the free space wavelength at operation frequency and ε re is the effective dielectric constant: The associated propagation constant (β) and phase velocity (v p ) can be given by equations 2 and 3, respectively, where c is the velocity of light in the free space. η r = P r a d P i n. Keep in mind that the conversions only hold exactly at one frequency, ω. The calculations are. third of operation wavelength (λ/3) above ground plane which cause to gain increase. 1t + 2. Published in association with. Our RF calculators and converters will provide the figures you need for your radio frequency engineering needs. = 1. h (substrate high) : unit. h is the height of the microstrip line above the ground plane. Step 3/4 1. Formula for Antenna Near Field & Far Field Distance Calculator. Here we will provide an equation that allows you to calculate the inductance of a single ground via in a microstrip circuit board. The Wavelength in Microstrip/Stripline Calculator can be utilized to determine the guided wavelength. Just enter the given values for trace thickness, substrate heights, trace width and subtrate dielectric in the calculator above and press the "calculate" button. A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal. Microstrip antennas can be manufactured very inexpensively now that reasonably priced, closely controlled substrate materials are available. Stripline is another type of transmission line that can be easily built on a circuit board. c) The wavelength of the line at 10 GHz. Free space Wavelength λ [mm] Length of Monopole λ/4 [mm] Diameter of Monopole [mm] 802. RF calculations and RF conversions include metric. New UI. Quarter wavelength antennas stackSolved 13. A directional coupler is a passive 4-port device used to sample a small amount of microwave power for measurement purposes. 1 < εe < εr. Note that this defines the bandwidth given the operating frequency and wavelength in free space: Microstrip patch antenna bandwidth A Microstrip Patch Antenna Calculator 2)The equivalent wavelength may be calculated using S-parameters, and known distance between ports. RF calculations and conversions include metric-standard, link. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. In conclusion, microstrip inductors are becoming increasingly popular in the design and manufacture of electronic circuits. Rs =. 3 enable the electrical characteristics to be determined given the material properties and the physical dimensions of a microstrip line.