VSWR & Return Loss Calculator: Enter forward and reflected power or match to determine equivalent values. This can be achievedAs a further extension of this cascade of RC low pass filter sections add a third RC section to make a 3rd order filter by connecting R 3 and C 3 to your circuit as shown in figure 5. cdn-anritsu. - Tee Attenuator Calculator. Enter values for R1 and R2 to calculate attenuator loss and impedance. 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 calculator SFDR calculator Skin depth calculator Stripline Impedance calculator Smith charts VSWR/Return loss converter VSWR is a parameter used by engineers to know the degree of mismatch between a transmission line and a device (like an antenna or a transmitter/receiver circuit). I have already calculated the cascaded VSWR and RL using the RSS method (very similar result to simply multiplying each components VSWR as Itay mentioned), but the problem is that the result is not even close to the measured value of return loss. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. VSWR (voltage standing wave ratio, sometimes pronounced "viswar"), is the ratio of the maximum standing wave amplitude at one node to the minimum amplitude at another node in a system. VNA Calibration Kit by Keysight Technologies ( 30 more products) Download Datasheet Request Quote. —and. Chemandy Electronics. Worksheet with more to be downloaded. Calculators. RF & Electronics Symbols for Visio. Cascaded Noise Figure calculator Chebyshev filter designer Coplanar GB waveguide calculator C-Coupled Resonator designer Coax Impedance calculator Chip Resistor De-rating calculator dBm/Linear power converter. The concept behind the Smith Chart is simple. He got it from a text book. Unlike a Vector network Analyzer, it does not measure both amplitude and phase of the DUT. The parameters are useful for several branches of electrical engineering, including electronics, communication systems design. ashraferto. - Balanced Attenuator Calculator. PI Attenuator Calculator. 8. 5 / 2. g. 2 the half plane with positive real part of impedance Z is mapped onto the interior1. Even though the effect of VSWR interactions between stages is not included when performing the calculations, the results are a good first order approximation of the cascaded performance of the. Noise factor is a measure of how the the signal to noise ratio is degraded by a device: F=noise factor= (S in /N in )/ (S out /N out) Where S in is the signal level at the input. S-parameter Utilities Spreadsheet. This can123doc Cộng đồng chia sẻ, upload, upload sách, upload tài liệu , download sách, giáo án điện tử, bài giảng điện tử và e-book , tài liệu trực tuyến hàng đầu Việt Nam, tài liệu về tất cả các lĩnh vực kinh tế, kinh doanh, tài chính ngân hàng, công nghệ thông1) VSWR Calculation. 2. |. Insertion loss is only defined for two port networks, but you could bastardize the definition. *Comparisons show minimal differences to ADS linecalc and Polar Instruments Quicksolver industry standard tools. H. This can be built into a FLEXI-BOX and a transmission line (50 Ohm track) PCB is available which easily adapts for this circuit with one simple trimming. Stage 2. The presence of standing waves in a transmission line means part of the incident signal is being reflected back to the source. The table was created with a handy Windows-based program called VSWR Calculator, detailed by author Steve Hageman of Agilent Technologies (Santa Rosa, CA) in his articleThe band pass filter resistor calculator can be used to calculate the values of resistors needed to create a filter with a specific cut-off frequencies F L and F H. Frequency to Wavelength. Enter the Return Loss (RL) in dB of each element in the RF chain. R 1 requires the low cut-off frequency F L and the capacitance of C 1. Perfectly Matched or Ideal VSWR is 1:1. Wavelength Calculator: Calculate the wavelength of frequency 4. The main cause of the mismatch is the deviation in the con-VSWR (Voltage Standing Wave Ratio) is a measurement of how well matched a radio transmitter and transmission line is to a load such as an antenna. of the filter. The result will appear below. 98dB OR a Mismatch Loss of only. Scattering parameters or S-parameters (the elements of a scattering matrix or S-matrix) describe the electrical behavior of linear electrical networks when undergoing various steady state stimuli by electrical signals. 51 dB, and a return loss of 9. There are two primary advantages of cascade amplifiers: increased gain and input, and output impedance flexibility. Some popular calculations include the effect of VSWR or return loss on transmitted power; cascaded gain and noise figure for up to five amplifier stages; and power-to-voltage conversion. The gain uncertainty arises due to impedance mismatch between the device and another connected device (e. A significant challenge for RF designers is the optimization of an RF chain for noise and distortion performance. 89% of the power is transmitted forward, while 11% is reflected back into the source. An operational amplifier (op-amp) is a voltage amplifier with a differential input. Preferred resistor values are entered into the text boxes, similar to the way that values for a prototype may be selected. VSWR is the ratio of the peak amplitude of a standing wave to the minimum amplitude of a standing wave, as seen in the following Figure: Figure 1. VNA Calibration Kit by Keysight Technologies ( 30 more products) Download Datasheet Request Quote. So a perfect match can be represented by the range 0. In the V2400 version, at present under construction, we have upgraded this calculator with a better user interface, making use of up-down controls to change the main input parameters. The calculator is a spreadsheet that accepts VSWR specifications for all the components in your RF Path—tower mounted amplifiers, diplexers, bias tees, etc. An equation for the prediction of the Return Loss of cascaded systems has been previously presented and validated. The Mini-Circuits RF / Microwave Calculator was developed by Mini-Circuits, an industry leader in the design, manufacture and distribution of RF and microwave. Noise Conversion Calculator. D (mm) Er: d (mm) Impedance: Notes: *Optimal D/d ratio for breakdown voltage is. 5dB, determine the required IF amplifier noise figure using the well known cascaded noise factor equation where noise figure (in dB) equals 10 * log (Noise Factor) where Noise Factor is numeric. Enter the Noise Figure & Gain for each stage to calculate the Cascaded value Select Number of Stages Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 Stage 7 Stage 8 Stage 9 Stage 10 NF(dB)VSWR Explained. This impedance incongruity leads to the performance deterioration in active device parameters such as efficiency, gain etc. VSWR Calculator Calculate voltage standing wave ratio (VSWR) and return loss for mismatched circuit. Bandwidth. The noise figure is the difference in decibel (dB) between the noise output of the actual receiver to the noise output of an "ideal" receiver with the same overall gain and bandwidth when the receivers are connected to matched sources at the standard noise temperature T 0 (usually 290 K). VSWR and its Effects on Power Amplifiers. **Note: All of our calculators allow SI prefix input. 5dBThis calculator converts between return loss (RL), voltage standing wave ration (VSWR), and reflection coefficient (Γ). VSWR ( VSWR meaning Voltage Standing Wave Ratio) is an important concept in radio frequency (RF) engineering. Here are the things that you can plot in this version. Enter the sample rate of the ADC (Fsamp), Frequency (Fin) and optionally adjust the maximum harmonic to calculate (Nmax). 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 calculator SFDR calculator Skin depth calculator Stripline Impedance calculator Smith charts VSWR/Return loss converter The first major new release of RF Cafe's spreadsheet (Excel) based engineering and science calculator is now available - Espresso Engineering Workbook™ (click to download). The Number that follows "WR" is the width of the waveguide opening in mils, divided by 10. The table was created with a handy Windows-based program called VSWR calculator, detailed by author Steve Hageman of Agilent Technologies. e 'output power = input power + Gain' - so if the gain of an amplifier is 10 dB, then a 1 dBm input signal will result in an 11 dBm output signal and a. In industry, VSWR is sometimes pronounced "viz-wer". This is because the loss of the cable pads down the connector mismatches. Cascaded Noise Figure calculator Chebyshev filter designer Coplanar GB waveguide calculator C-Coupled Resonator designer Coax Impedance calculator Chip Resistor De-rating calculator dBm/Linear power converter. 25 = 1. Default Password. Some are based on look-up tables, some completely hide their algorithms. Here is a JavaScript calculator for. However, if the parasitics differ much from 0. New for January 2021! This tool allows you to shift the frequency of an IF amplifier's S-parameters so you can cascade it with your RF chain in a receiver design. Moreover, return loss is the relationship between both the reflection coefficient (Γ) and the. This can be built into a FLEXI-BOX and a transmission line PCB is available which easily adapts for this circuit with a simple trimming operation. Introduction. Cascade VSWR: To calculate the max of cascading VSWR 5. As an added bonus, the. See cascade calculations for NF, IP2, IP3, and P1dB. 0:1. 5 * 2. This is a required field. S parameters are popular in RF/Microwave circuit design and testing. VSWR B = 2. Zero . Lumped Quadrature Coupler Designer Enter the. ε0 = permittivity of free space = 8. 30 MB. e. The cascaded effects of the noise figures and losses of the components following the attenuator, including the LNA, will increase the noise figure considerably beyond 3 dB,. Some popular calculations include the effect of VSWR or return loss on transmitted power; cascaded gain and noise figure for up to five amplifier stages; and power-to-voltage conversion. Tags: Mechanical Calibration Kit. It is very easy to construct. A quadrature coupler is one in which the input is split into two signals (usually with a goal of equal magnitudes) that are 90 degrees apart in phase. Please Support RF Cafe by purchasing my ridiculously low−priced products, all of which I created. 44. Insertion loss can be calculated by measuring the power or signal level before and after a component, device, or system and then finding the difference in dB. Antennas, Unit-Conversions, VSWR, RF power, DSP,. The following table provides conversions for wavelength (from frequency), VSWR (from forward and reflected power). The formula for mismatch loss is simply: mismatch loss= (1-|Γ| 2) alternatively, mismatch loss=1-ρ 2. VSWR Calculator. What is AppCAD? AppCAD is an easy-to-use program that provides you with a unique suite of RF design tools and computerized Application Notes to make your wireless design job faster and easier. Resistivity. **Note: All of our calculators allow SI prefix input. Thus, gain for an active device gets deviated because of this mismatch which leads to unstable. Coaxial Cable Calculator. Cascaded calculations were carried out to determine the values at the system output, and then the equivalent input parameters were calculated. For example, if you wish to input "25000000", just type. 64% or ±10 x log10 (103. Cascade VSWR: To calculate the max of cascading VSWR 5. Butterworth; Chebychev; Hybrid Coupler; Interdigital filters; L match filters; General RF tools. Application Note File. 1) Introduction. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. Objective. It is explained here. This attenuation calculator provides as output to the user the original. VSWR & Return Loss Calculator: Enter forward and reflected power or match to determine equivalent values. 398Ω. Using measurements of this nature is often termed. Aug 6, 2019. Resistor Markings & Color Codes. From Fig. I am using the specified max VSWR. This mismatch can influence the performance of the source. This equation gives the method for calculating cascaded NF (nf) values based on the nf and gain. Installer for the Windows version of dB Calculator. Cascade analysis is a simple yet powerful tool for analyzing system performance. Here we will learn more about the meaning of VSWR and the associated VSWR formulas. 0:1. I am using the specified max VSWR. Consider the three cascaded amplifier stages, each amplifier stage has a noise figure of 3 dB and power gain of 10 dB, then the calculation of total noise figure is given below. As we know that the definition of the return loss of a system is the ratio of incident power to. The formula goes like this: gamma total = the square root of the sum of the squares of the individual gammas minus the product of the square of the individual gammas. Nice Voltage Standing Wave Ratio (VSWR) calculator is given on this page, converting between reflection coefficient, gamma (in both percent and decibels), and mismatch loss. 1 Return loss in dB = 26. The gain uncertainty arises due to impedance mismatch between the device and another connected device (e. More details for 85052C can be seen below. VSWR MAX = 2. In order to obtain a cascaded noise figure performance of 9. Note : It is quite possible, that other calculators deliver slightly different results. 8. The calculator is a spreadsheet that accepts VSWR specifications for all the components in your RF Path—tower mounted amplifiers, diplexers, bias tees, etc. Download the S-parameter mixer. Consider the three cascaded amplifier stages, each amplifier stage has a noise figure of 3 dB and power gain of 10 dB, then the calculation of total noise figure is given below. 6. Unfortunately, no directional device is perfect, leading to potentially dramatic measurement errors. With this calculator tool you can calculate the resonance frequency of a a cavity ( rectangular or cylindrical ) and a structure on a PCB. VSWR Calculator. High VSWR values indicate less efficient power transmission and can lead to. This impedance mismatch can be with a device inserted in the line or with the terminating load. This can affect the small-signal gain ripple of a cascade as a midband dip or high-end frequency roll-off, since amplitudes of these fluctuations are dependent on the amount of reflected power. ε0 = permittivity of free space = 8. Delta to Wye/Star Conversion Calculator. This is equal to a return loss of 14 dB or greater. More details for V10CAL Series can be seen below. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. VSWR (Voltage Standing Wave Ratio) is the measure of how efficiently RF power is transmitted and is expressed as a. , 319. Noise Factor to Noise Figure Calculator. Resistor Values. . Cascaded Noise Figure calculator Chebyshev filter designer Coplanar GB waveguide calculator. Specify the bandwidth and SNR and Noise Factor ( Set noise factor) to obtain the sensitivity in dBm or dBuV (50 Ohms). , an), the wavestravelling away from the n-port are b = (b1, b2,. Note: Equation 1 below uses linear power units (mW/W), while Equation 2 uses dBm/dBW. 4 Butterworth types for analog filter design. S 11 =S 22 =S 33 =S 44. Unit Converters. e. May 8, 2018. 50:1, the resulting maximum VSWR will be 4. Calculator: VSWR; Design Support. 1) (2. 54 dB (11% of your transmitter power is reflected back). comRF Trap With Attenuator Calculator Calculates the attenuation, 'impedance', reflection coefficient, VSWR and return loss of a circuit that incorporates a RF tank circuit into a Pi attenuator. It. Calculates Chebyshev response analog filters up to the 9th order. DSP FIR-filter calculator. It is a Smith Chart based linear circuit simulation program that can be used via a website. be used to add or subtract an arbitrary number of power, to convert power and voltage units from the linear to the logarithmic. Advertisement. In his ATP he had the following formula to calculate the cascaded VSWR through the many switches to the front panel. Where, RL = Return loss in dB. This paper further validates this equation against experimental data obtained for. As an example, if the return loss of the amplifier is 4 dB, use the calculator below. 0:1, 2. This makes the amplifier less efficient. Simply select the tool that best suits your purpose. Calculate! Where do these calculations come from? Well, start with the formula for VSWR: If we invert this formula, we can calculate the reflection coefficient (, or the return loss. My paths are also up to 12. Enter the Noise Figure and gain for each stage. Voltage Measured Along a Transmission Line. is a VNA Calibration Kit with Frequency 140 to 220 GHz, Operating Temperature -20 to 30 Degree C, Return Loss 28 dB. VSAT Components (Satellite Communications) Sensor Modules (WaveEyes) Components for Radar, Electron Guns and Cathodes; VSAT Components (Satellite Communications) Calculator. It does not have null spots directly overhead or at other in-opportune locations like. 1. 25 = 1. A more realistic match for a cable & antenna system is. 8. com . Finetopix. Continuing the tradition, RF Cafe Espresso Engineering Workbook™ is also provided at no cost. Resonant Frequency Calculator. Particularly, reflected power and mismatch loss help describe the need for the antenna (with its matching network) to provide a suitable return loss to the active electronics. ,100 % power transferred from a source to a load via a transmission line/cable). As a rule of thumb, the VSWR due to the interaction of 2 connected devices can vary between the product of the 2 VSWR's max and the quocient of the 2 VSWR's min. Solution: Internally, this calculator first converts the given noise figure (in dB) inputs to normal values (i. Return Loss (dB) 3. Return Loss (dB) to VSWR Calculator. Use this calculator to calculate Receiver sensitivity ( Signal level to obtain a specified number of dB's Signal-to-Noise ratio SNR ) Set temperature in Fahrenheit, Celsius or Kelvin. Determining the noise and distortion as a progression through the RF chain is known as cascade analysis. The calculator converts between return-loss, VSWR, reflection coefficient, and mismatch loss. is a VNA Calibration Kit with Frequency 110 to 170 GHz, Operating Temperature -20 to 30 Degree C, Return Loss 30 dB. Converts VSWR into dB. 1) Introduction. 69:1 worst-case. Er:Dears, I would like to share this useful program from Kathrein Inc. 89% of the power is transmitted forward, while 11% is reflected back into the source. For a VSWR of around 5. However, convention and some literature quote return loss as a negative value akin to an S (1,1) measurement on a Network. - Applied attenuation. The minimum value of VSWR can be 1:1 (or simply 1), which is an ideal condition where. 16-Feb-2022. The calculated value is MUCH worse. 0:1 device with a 1. Calculate VSWR from Forward and Reverse Power. Follow the discussion. Antennas, Unit-Conversions, VSWR, RF power, DSP, EMC and much more RF related topics. Alternatively, Generate R1 and R2 for a wanted attenuation. Calculate Stripline impedance for given PCB parameters. The noise power from a simple load is equal to kTB,. 5:1 equates to a Return Loss of 13. A power sensor with a return loss of –23 dB is connected to a calibration source with a return loss of –20 dB. :rolleyes:I have already calculated the cascaded VSWR and RL using the RSS method (very similar result to simply multiplying each components VSWR as Itay mentioned), but the problem is that the result is not even close to the measured value of return loss. For infinity:1 SWR the voltage and current are doubled, (at different places on the line), meaning you have to reduce power by four times for the same heating (some assumptions!). What is VSWR? VSWR (Voltage Standing Wave Ratio) is the measure of how efficiently RF power is transmitted in to a load. D. Noise Figure Calculator Calculate noise figure, gain, and noise temperature for a N-Stage cascade device. VSWR/Return loss converter Wavelength calculator. *PCB vendors can use controlled impedances and will vary any designated trace width at mask level to hit impedance targets. *Accurate for arbitrary values of Er and w/h ratios. Cascade Calculator (Active / Passive) pop-up Provides performance values for system level Gain, Noise Figure (NF), P1dB compression and Output IP3 for up to 20 cascaded. Hence, the return loss is always lower than the ideal system (i. This general RF calculator includes calculations of path loss, VSWR and wavelength as well as conversions between many common terms used in the wireless industry. The first major new release of RF Cafe's spreadsheet (Excel) based engineering and science calculator is now available: Espresso Engineering Workbook™. From a system VSWR level calculate the following parameters: - Reflection coefficient. 0:1 --> S B = 2. FAQ. Resonance Calculator Calculate the resonant frequency of an LC tuned circuit. 2011-11-27, 07:48 AM #2. VSWR (pronounced "viswar"), or the Voltage Standing Wave Ratio, is the ratio of the maximum standing wave amplitude at one node to the minimum amplitude at another node in a system. Basic VSWR calculations and formulas. Consider the 6dB antenna return loss case. Return loss, also known as reflection loss, is a measure of the fraction of power that is not delivered by a source to a load. A set of 4 calculators with Butterworth response filters for analog low-pass, high-pass, band-stop and band-pass. click on any item below to see example plots:Intermodulation calculators. Example 2. You can analyze small-signal gain and noise figure nearly exactly, and come pretty close to modeling large-signal performance, such as predicting one-dB compression point. 5:1). 4 (a) Normalized line voltage 1 + . 707 Return Loss (dB) 3. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. =Γ2 = 10−RL/10 = Γ 2 = 10 − R L / 10. Hi all, Attached herewith is a small Radio tool from Kathrein Scala Division which shows dbm to watt conversion and vice versa,Cascade VSWR,Wavelength calculator,reflection conversion table, & touch down points. . g. Transformed through the antenna side capacitor (adjusted to 139. VSWR Mismatch Errors: Both amplitude and phase errors are introduced when mismatched impedances are present at an electrical interface. 0x1. In the ZL box, type 50 Ω. The cascaded effects of the noise figures and losses of the components following the attenuator, including the LNA, will increase the noise figure considerably beyond 3 dB,. For example connecting a 2. FAQ. 295-49. RF Cascade Workbook for Excel. Combining 2 Stages at a Time for Calculations. VSWR MAX = 2. Radio Frequency Engineering Calculator. A perfect or ideal match in VSWR terms would be 1:1. Result: Noise figure (NF) measures of degradation of the signal-to-noise ratio (SNR), caused by components, such as amplifiers, in an RF signal chain. Return loss is determined by the portion of the input signal that is. +62 31 8914627 / Jawa Timur, Indonesia. 5) worst case if the reflected waves add in phase or a 1. Two cascaded tuners with VSWR=100:1 (capable of 0. For five t-line sections each having a VSWR of 1. This calculator helps calculate the values of the output voltage and the inverting and non-inverting gains of an operational amplifier. As the VSWR increases, the quality of the match deteriorates and more power is reflected back. For Z. VSWR Stands for 'Voltage Standing Wave Ratio' and is used in EMC to specify the effect of a mismatch presented to a test system signal. (Γ). Pout is the output power or signal level. VSWR and Return Loss Calculations. here is an online cascaded VSWR calculator using the RSS method. The V10CAL Series from OML Inc. Gain for uncompressed stages is a simple addition. The tool then calculates all frequencies that would alias and give rise to Fspur. Since 2002, the original Calculator Workbook has been available as a free download. Power. Locates harmonics of a fixed frequency in the first Nyquist zone of a sampled data system. VSWR is defined as the ratio of the maximum to minimum voltage on a loss-less transmission line (expressed as 3. The measure of this reflected power is called as return loss. Expressed as 3. Cascaded Noise Figure Calculator. , some amount of incident power will reflect the source in a practical system). 005 Γ 0 0, 1 01 VSWR 1 0and RL 40 dB, which is difficult to achieve in reality. VSWR calculator is an online calculator is used to convert the values between the VSWR, return loss, reflection coefficient, and mismatch loss. RLC Combinations: Parallel. 5:1 device can yield a 3. Reflection Conversion Table: To provide the correlative value of VSWR, Return Loss, Reflected Power, Reflection Coefficient. This article offers an introduction to the Smith chart and how it’s used to make transmission-line calculations and fundamental impedance-matching circuits. Resonant Frequency Calculator. RF Calculator: Wavelength, dBm, dBuV, W, dBuV/m, mW/cm^2, pJ/cm^2, V & VSWR This RF calculator has been developed by Compliance Engineering as a resource for individuals involved in EMC and RF compliance measurements. Friss, free space path loss calculator. in a rectangular waveguide has been presented based on Mode Matching Technique. • MTBF and MTTF Calculator • Power Unit Calculator • RF Phase Noise to Jitter Converter • ACPR Calculator • Cascaded IP3 Calculator • RF Amplifier PAE. 5 / 2. These are the standard set of equations for converting between VSWR, return loss, and reflection coefficient (Γ). The S-parameter matrix describes networks with an arbitrary number of ports. It is very simple, effective and efficient antenna. See the quick-reference table below for. Circuit advertisement Join Date Always Posts Many . This Javascript calculator converts between return loss (RL), voltage standing wave ration (VSWR), and reflection coefficient (Γ). **Note: All of our calculators allow SI prefix input. RF & Electronics Symbols for Visio. An accurate analysis for computing the transmission characteristics and VSWR of cascaded H-plane dis continuity . This mix of web-based tools and downloadable Windows software was developed to help engineers design faster and more accurately. R. Calculates the Free Space Transmission Loss (FSTL) between two antennas based on: Transmit power. It is due to inherent imbalances in directional devices. 25:1. RF Cascade Workbook for Excel. The effect of more impedance mismatching between the cascaded assembly and the load results in more power being re- flected back to the source. 0:1, 2. Wire over Ground Calculator. The following formula relates the return loss and VSWR. RF Calculators. When you look at a graph of a return loss formula, the negative sign is often omitted and is sometimes used interchangeably with the S11 parameter. There are a variety of different types of gain equalizers, a common circuit type is a frequency variable attenuator, which equalizes gain by having a slope which complements the sloping gain of the original circuit. The online calculators are usable in pop-up mode for easy desktop. See the relationship between power in dBm, Watts. It is possible to derive the most basic VSWR. In general, a lower VSWR means a system and load is well matched with most of the power being radiated by the antenna and a relatively small amount reflected back into the system. Both systems have a total of +30 dB gain. Spurious Free Dynamic Range Calculator Calculate the SFDR for a communications system. Cascaded Noise Figure calculator Chebyshev filter designer Coplanar GB waveguide calculator C-Coupled Resonator designer Coax Impedance calculator. The explanation is simple. Now you're done with your resistors! The values should be R₁ = 76. The first major new release of RF Cafe's spreadsheet (Excel) based engineering and science calculator is now available - Espresso Engineering Workbook™ (click to download). The Mini-Circuits RF / Microwave Calculator was developed by Mini-Circuits, an industry leader in the design, manufacture and distribution of RF and microwave. Tags: Passive Calibration Kit. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. PIM Calculator; Third order IP; Inductors. VSWR can also be complex (Re+jIm, in theory) but most people just use it with "Real" values and is always >= 1. VSWR Return Loss Calculator. VSWR. Here you get the possibility to do different calculations. *Strictly, a loss quantity when expressed in dB should be positive. VSWR Voltage Standing Wave Ratio Calculator. Mixer Spur SearchLink Budget is a way of quantifying a communication link's performance while accounting for the system's power, gains, and losses for both the transmitter (Tx) and receiver (Rx).