VSWR is the voltage standing wave ratio it used to measure the all-types waves (example: antenna waves) during transmission. VSWR is defined as the maximum voltage of the standing wave (E max) to the minimum voltage of the standing wave (E min ). Avg. VSWR =. Convert VSWR to Return Loss and vice versa. 0:1, 2. Requires Windows 7 (64 Bit) or higher. Milli Watts to dBm Calculator. Forward Power (W) Reverse Power (W) VSWR. 79. The M5i. Just enter the forward and reflected power in watts. Circles centered at the origin of the Smith Chart are. This value is usually calculated by discounting any obsticles or reflections that might occour. 16-Feb-2022. 24 dB. In addition, if GAMMA, VSWR, or dB is known, the calculator can convert between the three. Click on the desired link below to use each calculator. Schematic representation of a PCB patch antenna: The calculator is based on simplified formulas for calculating microstrip. This calculator allows calculation of VSWR from Zload (or Yload or S11) and Zo. If the match is not perfect, the peaks and valleys of the returned signal will not align perfectly with the transmitted signal and the greater this number is, the worse the match is. VSWR Calculation. S-parameter Utilities Spreadsheet. RF Trap With Attenuators Computes attenuation, return loss, reflection coefficient and VSWR . VSWR & Return Loss Calculator: Enter forward and reflected power or match to determine equivalent values. Radiated Magnetic Field from a Loop Antenna (Low Frequency, Close Proximity) Power Density & Field Level(Far Field) Power to Generate a Known Field(Far Field) Circular Waveguide Attenuation. 5 GHz. More details for M5i. RF calculations and conversions include metric-standard, link. 43. More details for v130NX can be seen below. Voltage Measured Along a Transmission Line. In addition, if GAMMA, VSWR, or dB is known, the calculator can convert between the three. 707. PDR05848. The graph below shows input return loss for an amplifier. vary with frequency). When a system is. The VSWR ranges from 1 or 1:1 (ideal) to infinity. If you provide an email address I can share a system. 0:1). The online calculators are usable in pop-up mode for easy desktop. Note that the outer boundary of the Smith Chart (where =1) corresponds to a VSWR of infinity. The R&S SMM100A from Rohde and Schwarz is a Vector Signal Generator that operates from 100 kHz to 44 GHz. Click here to go to our VSWR calculator Click here to learn about VSWR problems in medical applications Click here to learn about designing for high peak power Click here. This file calculates a whole bunch of useful stuff using two-port S-parameters that you can get from manufacturers or measurements. A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission lineA noise temperature and noise factor calculator for both directions o calculation. To do so, calculate the desired return loss and subtract the known load return loss. Rectangular Waveguide Sizes. It supports both balanced and unbalanced lines. Enter VSWR value other than 1 or 0. Our suggestion - Laminate this page and cut out the chartFrom the S-parameter matrix, you can calculate characteristics of linear networks such as gain, loss, impedance, phase group delay, and voltage standing wave ratio (VSWR). 4 and 2. Spreadsheet and text downloads. Here’s a really simple way of double checking how to much to trim your antenna elements. As an added bonus, the results are modifiable and can calculate the other values. IRA Calculator. Chose. Just in case you don’t care for mathematical equations, here’s a little “cheat sheet” table to help. For five t-line sections each having a VSWR of 1. 0:1, 2. 3. They are based on the Infineon CYW43439 chipset and have integrated a PA/LNA. The VSWR Calc program is a Microsoft Visual Basic 32-bit application that runs on Windows 95, 98, and NT 4. 4 Butterworth types for analog filter design. gamma = 1/3; ratio = vswr (gamma) ratio = 2. dBm To Watt Calculator. 06 or better. Polar or rectangular grids only allow direct reading of S11. 1, for system 2 is 0. 5 Gbps (NSA) and an uplink data rate of 650 Mbps (NSA). Will mismatch at either port A or B of a 2-way power splitter/combiner cause significant performance degradation? A. VSWR of 1. 2 means a peak voltage 1. RM500Q-GL. Upper VSWR: Calculate. To calculate the Return Loss, add 1 to the VSWR and divide the. The IEEE definition for effective radiated power (ERP), which is. 3. This generator includes a 14-bit, 2 GSPS DAC and can convert any bitmap. All channels of this splitter are phase and group delay matched and each channel includes a ferrite isolator. This microwave CW source is based on a non-PLL platform. This calculator allows calculation of the antenna Q from VSWR bandwidth for matched antennas that are well represented as a simple series resonant circuit with constant R near resonance. Noise Factor to Noise Figure Calculator. Three sizes are included so you can have just the right one . 25 is average. Companies like JFW Industries can make a mismatch load (or mismatch termination) that can be used to test amplifiers and help characterize their performance under conditions that might occur in the. Return loss can be measured by using microwave and RF test. In complex notation it is: Z[Ω] = R + Xj. This is one of those items from the past that Amateur . Then right-click on the file, click Properties, then click Unblock. To graphically find the input reflection coefficient or input impedance, we first identify the scale ”WAVELENGTHS TOWARD GENERATOR” (WTG) on the Smith Chart’s outer perimeter; see green oval in Figure fig:SCImpRefCoeff. good. Here, Zo is the characteristic impedance of pi type symmetrical attenuator, which is equal to the value of source (Zs) and load impedance (ZL). 30 MB. It's assumed that the source impedance is also complex. If you don't have Excel you can use a stand alone app vswr calculator from commscope. The VSWR (Voltage Standing Wave Ratio) Calculator is a crucial tool in the field of radio frequency (RF) engineering and telecommunications. One of the most feature-filled examples of RF design software available today is QuickSmith by Nathan Iyer. These multiple solutions are possible because each contributor is a vector having both. The digital/analog hybrid design provides excellent phase noise performance and spurious response, which compliments the phase coherent nature of these signal sources. , some amount of incident power will reflect the source in a practical system). It has a real-time bandwidth of 120/240 MHz and can generate standard signal types (CW, sweep, chirp, pulse, etc. A perfect or ideal match in VSWR terms would be 1:1. PK !¢_›g u [Content_Types]. Aug 6, 2019. $ = \Gamma^2 = 10^{-RL/10}$ Power transmitted ratio for system 1 is 0. EIRP (mW) EIRP (dBm)Instructions. On the other hand, VSWR and the reflection coefficient are connected by the equation: VSWR = (1+|Γ. Where, RL = Return loss in dB. The WCN3998 from Qualcomm is a 2x2 Wi-Fi 6-ready integrated chipset with Bluetooth 5, WPA3 Security, and digital FM. Background S11 is the input reflection coefficient with a. “468” is the constant used to convert frequency in MHz to feet. Gain. **Note: All of our calculators allow SI prefix input. S-parameters (or scattering parameters) are used to describe how energy can propagate through an electric network. The concept behind the Smith Chart is simple. MS2090A. VSWR from Forward and Reverse Power. Also, the VSWR is a result of things getting reflected back:A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission line T-Pad Attenuator Calculator This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator. This VSWR calculator allows you to calculate the reflection coefficient, reflected power, and mismatch loss for a given value of VSWR (voltage standing wave ratio). 1 Return Loss. At 1000 MHz, the S11 (dB) = -RL (dB) = -15 dB. m. Reflection. This module delivers a 5G downlink data rate of up to 2. VSWR (input) : Return Loss in dB (output): Return loss calculation EXAMPLE : VSWR = 1. The VSWR/return loss calculator from Pasternack will find VSWR, return Loss, mismatch loss, and the reflection coefficient given any one of the listed input types. 5 dB, Noise Figure 6 dB, Output Power 23 to 25 dBm. Return Loss S11, and VSWR Calculator. The length of a half-wavelength dipole can be calculated by the given formula: L =. You can use our VSWR calculator to see that 1. vswrant = vswr (object,frequency,z0) calculates and returns the VSWR of an antenna or array element, over specified frequency range, and a reference impedance of z0 ohms. This article will provide a refresher on the concepts behind VSWR and return loss, then explore some special considerations about the VSWR to. Use the S11 value in the calculator above to find the equivalent VSWR. PRS1520. Suppose the wave is not matched with load and signal there is some unwanted signals are interrupted or signal loss is occurred. 9, for system 2 is 0. The slotted line measures voltage along the line; this is why standing wave ratio is often expressed as VSWR. It is the output power when a signal is concentrated into a smaller area by the Antenna. Calculates the resistor values, attenuation, minimum attenuation, 'impedance', reflection coefficient, VSWR and return loss of a matching Pi attenuator. 5 1 2 r!5 x!" 5 "2 "1 ". VSWR Calculator. 794Calculators - Cable Loss & VSWR Calculators. This VSWR calculator will calculate return loss, mismatch loss, loss in percentage and the reflection coefficient. . , there is no standing wave). The flexible types (9913F and LMR-400UF) are preferred, particularly for rotatable antennas. Fortunately, there’s a very easy way to analyze complex loads using graphical methods and it’s called the Smith Chart. 3 is considered to be excellent. Mismatch Loss: Convert VSWR to Return Loss, Reflection Coefficient, and Mismatch Loss with our easy conversion calculator. By making use of an asymmetrical resistive attenuator you can match different impedance's or just use it as an normal attenuator calculator when both the input and. e. Cavity resonance calculator. The VSWR of an AIS transponder, is a measure of the level of standing waves present in the antenna cable (feeder). But for a practical transmission system with load, there will be a small impedance mismatch that will lead to a small amount of incident power reflected back to the source. e. It uses a bilinear Moebius transformation, projecting the complex impedance plane onto the complex Γ plane: Γ = Z −Z0 Z +Z0 with Z = R +jX (3) As can be seen in Fig. The term "impedance" generally refers to the combined total of resistance and reactance. There is also a selection of suitable RF. 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. VSWR adalah VSWR juga dapat di artikan sebagai perbandingan antara gelombang maksimum dengan gelombang minimum. The bands have a separation between them called the duplex spacing. This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line supplied to the calculator. 0 indicates about 75% of the power is delivered to the antenna (1. For one example, if you have two 2:1 mismatches separated by some distance, the worst case at some frequencies will look like 4:1 VSWR. Round Earth Calculator Hair Diffraction Calculator Immersed Weight Calculator Projectile Motion Experiment Calculator Smartphone Projector Calculator Sun Angle Calculator Sunrise Sunset Calculator Toilet Paper Race Calculator - Mass Moment of Inertia. - Balanced Attenuator Calculator. Load in ohms. Reflection Coefficient. Enter VSWR (a value greater than or equal to 1) S11 to VSWR Formula S11 = (VSWR-1)/ (VSWR+1) S11 (dB) = 20*Log10 (S11) The input reflection coefficient, S11 < 1 Example Calculation For a VSWR of 1. These are considered to be standardized impedance values with cables readily available. Calculate. Here is a useful "cheat sheet" converting VSWR to the percentage of reflected power. The formula for insertion loss in decibels (dB) is: Insertion Loss (dB) = 10 * log10 (Pin / Pout) Where: Pin is the input power or signal level. 72 0. In an ideal system, 100% of the energy is transmitted. 5. Calculates Butterworth response analog filters up to the 9th order. 5G NR Band n71 has a frequency range from 663 - 698 MHz (Uplink) / 617 - 652 MHz. Wavelength to Frequency. ,100 % power transferred from a source to a load via a transmission line/cable). 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. Plot input impedance for a range of frequencies. This mismatch can influence the performance of the source. Thus, for this system, VSWR = 1:1 (i. VSWR of 1. Preflected watts. This is the online directional coupler calculator that calculates the coupling (dB), coupling loss(dB), insertion loss (dB), and directivity (dB) of a directional coupler by entering the value of input power P1 (dBm/Watt(s)), output power. 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. 5:1 equates to a Return Loss of 13. RF Cascade Workbook for Excel. As it can be seen from the above equation, VSWR is always a real and positive number with a minimum value of 1. The NC1128A from Noisecom is a White Gaussian Noise Source that operates from 10 MHz to 10 GHz. VSWR Calculations. Reactance elements in RF circuits are made up of capacitors (producing negative reactance) and inductors (producing positive reactance). VSWR (Voltage Standing Wave Ratio) VSWR is a measurement of the level of standing waves on a feeder. VSWR Calculator. f if the frequency of the RF signals. A VSWR calculator; calculates VSWR from forward and reflected power. Calculate Voltage and Current at your Antenna's Feed Point! Power (in watts): Impedance (in ohms):VSWR Calculator: วิธีคำนวณ VSWR? อิมพีแดนซ์ไม่ตรงกันส่งผลให้เกิดคลื่นนิ่งตามสายส่ง และ SWR ถูกกำหนดให้เป็นอัตราส่วนของแอมพลิจูดของคลื่น. g. Offset Quadrature Phase Shift Keying (OQPSK) is a variant of the QPSK modulation scheme where the phase or timing of either the in-phase or Quadrature component is shifted relative to each other by a one bit-period or half a symbol-period Ts as compared to QPSK. If you only need to convert between GAMMA, VSWR, and dB, you can ignore Zo and ZL. Because of this, the effects of mismatch can be minimized by selecting an. A = Area of aperture in m 2. These parameters are often applied to antennas, RF filters and RF amplifiers such as LNA s and PA s. Power: VSWR=1. Welcome to our Microwaves101's Download Area! If you have something useful that we can add, send it along to us. The WNC C-V2X from Wistron is a Vehicle-to-Everything (V2X) module, designed to serve automotive applications such as on-board units (OBU) and telematic control units (TCU). e. W. ,100 % power transferred from a source to a load via a transmission line/cable). Here are the things that you can plot in this version. It can handle a CW input power of up to 6 W, has an insertion loss of less than 9 dB, and an amplitude balance of ±0. Enter Zo - source characteristic impedance in Ω S11 - either linear or dB value can be used The tool will calculate the absolute value of the load impedance ZL in ohm. The isolation S23 is exactly -20 dB at the center frequency, while the output match is also. The VSWR is a measure of the efficiency of a transmission line and is used to determine how well the line is matched to the impedance of the. VSWR = (1 + √ PRFL/PFWD ) / (1 - √ PRFL/PFWD ) back. Enter Load and Characteristic impedances to calculate VSWR and Reflection Coeffecients. VSWR. This ratio represented in dB is called as Return Loss. Select a. The power in decibel-milliwatts ( P(dBm)) is equal to 10 times base 10 logarithm of the power in milliwatts ( P(mW) ):Use the Series and Shunt Impedance Calculator: to try your own impedances; Change Grid: S11, (ZL normalized to source impedance Z0) Z_Load: Z_Load:. 2 and 1. Circles centered at the origin of the Smith Chart are constant-VSWR circles. ,100 % power transferred from a source to a load via a transmission line/cable). The S-2-TCPUSEW-H-NI6 from CommScope is a Multiband 2-way Power Splitter that operates from 340 to 3800 MHz. A set of 4 calculators with Chebychev response filters for analog low-pass, high-pass, band-stop and band-pass filters. Calculates Chebyshev response analog filters up to the 9th order. Free Online Engineering Calculator to quickly convert a Return Loss (dB) into a VSWR. Note that in general S-parameters are a function of frequency (i. Save the file to your hard drive. VSWR to Return Loss Formula VSWR = (1 + 10-RL/20)/ (1 - 10-RL/20) Example Calculation A Return. It is a measure of how efficiently RF power is transmitted from the power source, through a transmission line, and into the load. However, VSWR gives a quick way of estimated how much power is reflected by an antenna. It's located in our download area . In addition, the calculation takes into account the effect of signal attenuation in the transmission line. This does NOT take into consideration the type or size of horizontal reflectors, of even if there is a need for them. Download this article of VSWR Explained. That is, a VSWR = 1 would be the center of the Smith Chart, and VSWR=3 would be a circle centered around the center of the Smith Chart, with magnitude =0. Back to top. It is used to calculate and. 5dB loss per 100 feet at 146 MHz). It also shows the percentage of forward to reflected power. 64% or ±10 x log10 (103. As the VSWR increases, the quality of the match deteriorates and more power is reflected back. Dual Dielectric Coax Calculator. This online VSWR Calculator is also very useful. Antenna Definitions, or commonly used terms related to antennas, are individually defined for quick reference. e. Interactive Tools & Calculators. Calculate VSWR from Forward and Reverse Power. 75 GHz Ku Band, Gain to Noise Temperature > 21. Matching Pi Attenuator Calculator. An SWR of 1. Even so, the math gets tedious in a hurry. This article offers an introduction to the Smith chart and how it’s used to make transmission-line calculations and fundamental impedance-matching circuits. In particular since antenna impedance depends on the dimensions of its conductors which are themselves measured in wavelengths of the operating frequency, there will. VSWR (Voltage Standing Wave Ratio) is a measure of how efficiently radio-frequency power is transmitted from a power source, through a transmission line, into a load (for example, from a power amplifier through a transmission line, to an antenna). Tags Communications • Communications And Networking Systems Or Equipment • Design Tools (eda) •. VSWR is determined from the voltage measured along a transmission line leading to an antenna. This is an online conversion tool for converting between VSWR, return loss and reflection coefficient, which are different ways to express how well a load is matched to a source. From reaching the most routine arithmetic, percent, or decimal values to metric conversions and statistical. Figure 1 Given the source and load VSWRs, the VSWR Calc program quickly calculates RF measurement uncertainties. Sterling-LWB5+. 57. Calculate braid coverage. S22 would be the reflected power radio 2 is attempting to deliver to antenna 2. VSWR. Mismatch Loss (dB). +-Wire 2 Wire 1 +-0 F = V g Z g Z L I ( d) V ( d) l Transmission line Load Z o Generator d d x | V ( d) | d n Convert VSWR, return loss, reflection coefficient and mismatch loss with this online calculator. Conclusion : In summary, RL and VSWR formulas and calculators are valuable tools that enhance the efficiency. . Directivity, on the other hand, is the level of the signal which appears at Port 4 and is undesired. 5. VSWR Conversion Table. VSWR is defined as the maximum voltage of the standing wave (E max) to the minimum voltage of the standing wave (E min ). For example, a VSWR of 1. Example 2. The Smith Chart graphically maps S11=reflection coefficient= (ZL-Z0)/ (ZL+Z0) to Load Impedance (ZL), normalized to Z0 (source impedance = center of chart). 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. Port 4 is the port which provides the reflected measurement (Return Loss/ VSWR), when the device is configured with the DUT connected to Port 2. Enter appropriate data See results in; dBm : dBw, Watts or microVolts. - Reflection Attenuator Calculator. 1-866-PASTERNACK (1-866-727-8376) US and Canada only • +1-949-261-1920 International • Email sales@pasternack. This power splitter has an insertion loss of 0. This morning, I got the following e-mail from a friend of mine who is a member of the University of Michigan Amateur Radio Club. 64 (800) TMS-COAX • TIMES MICROWAVE SYSTEMS TC-400-TM LMR®-400-UF UltraFlex Communications Coax LMR-400-UF TC-400-716-MC Connectors Inner Outer Finish* Part Stock VSWR**. Home. This calculator can be used to indicate the degree of mismatch between a transmission line and its load. For a VSWR of 1. Add a constant-Q circle (set to 0 to remove it) Const Q. com . 5 GHz Ku Band, Frequency TX 10. If you only need to convert between GAMMA, VSWR, and dB, you can ignore Zo and ZL. 14. For Dipoles: Cut / Add the result to each leg. The Smith Chart achieves this by superimposing a grid on S11 that maps load impedance. If you are concerned with a 20 dB isolation spec, a VSWR of 1. The online calculators are usable in pop-up mode for easy. A magic-tee, or hybrid tee, is a 4-port waveguide structure that behaves as an electric field and magnetic field 3dB coupler, and is in fact, a combination of E-plane and H-plane tees. 50:1, the resulting maximum VSWR will be 4. Click to immediately download to your PC. The calculator is designed to be fine tuned after the initial input. You can take the readings from. 2 times the minimum voltage along that line, if the line is at least one half wavelength long. These multiple solutions are possible because each contributor is a vector having both. To do so, calculate the desired return loss and subtract the known load return loss. Retrurn loss pada dasarnya memiliki asal yang saling bersinergi dengan VSWR yaitu terjadi disebabkan oleh pencampuran antara. There is a mathematical equation to accurately calculate the VSWR of an RF system. ) and complex I/Q signals up to 4096QAM. - Applied attenuation. It is useful to display or measure very small amount of reflections. The TEM wavelength (λ) depends upon the frequency and relative permittivity (εr) medium (like waveguide/ stripline. It assumes that the wave is traveling at the speed of light which is the case for most wireless signals. Solution: First the VSWR figures are converted to reflection coefficient magnitudes: Then the mismatch uncertainty is: M u = ±200 (0. These reflections are very undesirable when we aim to transfer power from one. 17% of the input power is transmitted forward, while 0. or any device with a web browser. This calculator allows calculation of VSWR from Zload (or Yload or S11) and Zo. dBm/m2. The voltage standing wave ratio (VSWR) calculator determines reflection coefficient (GAMMA), VSWR, and return loss (dB) for a mismatched line. The Parabolic Reflector Antenna Calculator on everything RF is an online tool that assists engineers and designers in calculating the critical parameters of a parabolic reflector antenna. Enter the value for VSWR in the below calculator to find out the values for Reflection Co-efficient, Reflected Power in % and Return loss in dB and the mismatch loss in dB. Here is a list of some of the calculators in this app: Attenuator Calculators. 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. VSWR (Voltage Standing Wave Ratio) is the measure of how efficiently RF power is transmitted and is expressed as a ratio of the maximum to minimum. 5:1 is considered ideal in the RF field, and a VSWR of 2:1 is marginally acceptable for more critical loss systems for low-power applications. 7 dB. With this equation, you can plug in the value of D and the measured voltages, and finally solve the above. VSWR Calculator: This is the ratio of maximum voltage to minimum voltage in standing wave pattern. Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load. +-Wire 2 Wire 1 +-0 F = V g Z g Z L I ( d) V ( d) l Transmission line Load Z o Generator d d x | V ( d) | d n |V (d)| n |V (d)| x. (i. A value of 1. Reactance Calculator. 93 dB. 868. In one typical RF application, VSWR is used to measure the amount of reflection due to impedance mismatch. A SWR can be also defined as the ratio of the maximum amplitude to. VSWR= 1+|Γ| 1-|Γ|Calculate Antenna Q from VSWR bandwidth measurement. A value of 1 indicates that all of the energy passes through. T Match efficiency estimator. FieldFox Online Supplemental Help - FieldFox conceptual and reference information. The RM500Q-GL from Quectel is a Sub-6 GHz Cellular 5G Module that is optimized for global (except USA) IoT and eMBB applications. If you provide an email address I can share a system. So, let’s take a step-by-step look at how to get your cascade analysis rolling. If you don't have Excel you can use a stand alone app vswr calculator from commscope. 0; Ambient = +40°C; Inner Conductor = 100°C (212°F); Sea Level; dr y air; atmospheric pressure; no solar loading Attenuation vs. For Example WR-650 means a waveguide whose cross section width is 6500 mils. Data throughput; Noise Temperature; RX sensitivity;Internally, this calculator first converts the given noise figure (in dB) inputs to normal values (i. $É2[ÕÜ8 âÁ. 39 0. 4. Note: impedance is a complex quantity, it has real and imaginary parts or magnitude and phase; instruments are almost always calibrated for Zo being some nominal real value, is Xo=0 (eg when people speak of a 50Ω instrument, that means 50+j0Ω even if they don't. Easy to use tool, Kintronic Labs, online VSWR Calculator. 04 dB. Forward Power (W) Reverse Power (W) VSWR. to a calculator or computer program that will handle it. The WTG scale is labeled in terms of the transmission-line length in wavelengths (not electrical degrees). The tool provides two networks that will have the desired impedence at that frequency. This mix of web-based tools and downloadable Windows software was developed to help engineers design faster and more accurately. e. Calculates the resistor values, attenuation, 'impedance', reflection coefficient, VSWR and return loss of a Pi attenuator. 54dB. Convert the load VSWR to load return loss per the following equation: RL Improved = 2*Attenuator + RL Load [dB] (where RL=Return Loss) Of course, the method can be reversed to predict the attenuator required to improve a load VSWR by a predetermined amount. One of the main advantages of a power splitter is that mismatch at either port A or B is not3. A minimum value of VSWR is desired for maximum power transfer between the source and the load. 17. return loss Calculator (by using VSWR) Skin Depth Calculator. Result. 9, for system 2 is 0. A high VSWR indicates that there are problems with the antenna and/or transmission line, as a large amount of energy is being reflected back instead of being.