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. A bridged T (Tee) attenuator can be thought of as a modified Pi attenuator. This parameter is used for the loss calculations. , a manufacturer and supplier of RF, microwave, and millimeter-wave products, has created and published a new set of RF calculators. Attenuation (dB) Impedance (Ω) Outputs. Free space path loss = (4*π*d/λ) 2. R = Range (distance. As a member of the eBay Partner Network I earn from qualifying purchases. The inductance, reactance and admittance calculator from Pasternack finds these results given the operating frequency and either the inductance or the reactance as per the formula. 01 40. Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. 3 GHz to 2. Where, P t = Transmitted Power. What a Differential Pair Impedance Calculator Misses. RF Coaxial Cable Impedance Calculator with Formula. Pasternack Introduces New Series of Low PIM Cable Jumpers. By understanding the microstrip transmission line, designers can. Feb 12-Jul 12, 2024: RF Certifications Online, Besser Associates Online Academy. Gain. 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 ideal point-source radiates electromagnetic energy in a spherical pattern, so the "maximum" radiated power should be the same in all directions. Pasternack's Free Space Path Loss Calculator calculates the loss (in dB) between two antennas where the gain, distance and frequency are known. From Pasternack's microstripline calculator and the test way above: 50 Ohm stripline on 1. 5 meter OUTPUTS: Gain = 52. 7 GHz Rated at 10 Watts Specifications Author: Pasternack Enterprises Inc Subject: 2 Way N Wilkinson Power Divider From 690 MHz to 2. The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. Phone: 949-261-1920 Fax: 949-261-7451. P refl = Reflected signal from target . The calculator requires you to input any two of the following three parameters: wave speed, frequency (or wave period) and wavelength. Patch Antenna Calculator. **Note: All of our calculators allow SI prefix input. Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. Leaning on the Law of Conservation of Energy, all of the signal energy injected into a signal chain needs to go somewhere. But it does have a few entry boxes and drop-down menus that can take some time to familiarize yourself with. 29 Over Horizon Over Horizon 2 0. To our valued customers: Our office will be closed November 23rd and 24th in observance of the Thanksgiving holiday. G r = Effective Aperture of the Receiving Antenna. Step 5: Calculation of actual length of. 064 1. PE2070. 10 -3. The substrate parameters (ε r and h) and the frequency of interest are required. In both cases, you’ll need to enter your stackup information into the calculator to get accurate results. Pasternack's Friis Transmission Equation Calculator is a path loss calculation measurement tool that calculates the received power from an antenna at some distance given a transmission frequency and antenna gains. See the quick-reference table below for. **Note: All of our calculators allow SI prefix input. The Pasternak family name was found in the USA, the UK, and Canada between 1880 and 1920. About Us. It shows values for a seemingly simple real-world path. Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. Where: ADT A D T = antenna downtilt in degrees. Natasha Pasternack, Licensed Master Social Worker, New York, NY, 10036, (347) 480-1508, Sometimes life’s hard moments don’t pass as quickly as we wish. F. For inquiries, Pasternack Enterprises, Inc. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. Antenna linksSince 1972, Pasternack Enterprises, Inc. 7 GHz. Who We Are; Careers; Contact. Free Space Loss Calculator. A radio frequency balance attenuator has the same number of resistors connected equally to each side of a transmission. 7 GHz to 40 GHz. "Pasternack's Waveguide Calculator provides the cutoff frequency, operating frequency range and closest waveguide size for a rectangular waveguide based on the custom inputted broad wall width. Pasternack Releases New High Isolation RF Switches. There is output at the BNC, but it is the input multiplied by. Coplanar Waveguide With Ground Characteristic Impedance Calculator. Gain Horn Antennas are often used in test and measurement applications and are often used to measure the performance of other antennas for certification, compliance, or other measurement applications. Calculation. The slides cover topics such as RF components, transmission lines, antennas, and modulation techniques. This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator. The free space path loss is the loss in signal strength of a signal as it travels through free space. The important thing in radios is not the signal strength, but rather the. Standard gain horn antennas from Pasternack are ordered with a waveguide to coax adapter attached to it, known as a connectorized horn antenna. 0 50WThe stripline impedance calculator provided below is useful for gaining an initial estimate of trace impedance for striplines. 15 0. Free-space path loss. Nov 17-Apr 12, 2024: RF Certifications Online, Besser Associates Online Academy. 5: Online Microstrip Patch Antenna Calculator and Experimental Formulas . com. G t = Gain of the Transmitting Antenna. Pasternack’s new RF calculators and RF conversion tools are now live on the company’s website. 444 1. Valid for distances >1 wavelength. Operating from 1. 4 to 2. Pasternack's 50 Ohm power dividers can be ordered with 2. This page contains a mixture of web-based tools and downloadable Windows software. Pasternack's Balanced Attenuator Calculator allows you to determine the Resistor values (R1) for a balanced attenuator (measured in Ohms). σ = Radar Cross-section or Scattering co-efficient of target. 8/20/2014. 2) gives the power delivered to a conjugate-matched receiver in response to a distant transmitter, assuming co-polarized antennas and free space conditions. Our fixed RF panel and patch antennas have gain values ranging from 7 dbi to 23 dbi and some models have built-in dual band cellular capabilities. Collection by . Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. com, techsupport@pasternack. The Link Budget Calculator provides an opportunity to make initial assessments of various link parameters to successfully close intended links. The antenna downtilt and coverage calculator (aka antenna tilt angle calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. However the probe inputs measures open circuit and there's no output at the BNC. Build a model from experimental data of impedance vs. Find Dr. 5 GHz, Diameter = 3. c = Speed of light in vacuum (Meters per Second) * All conversions are based on free space conditions (impedance of 377 ohm)Friss, free space path loss calculator. 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. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. Coaxial cables and coaxial connectors can reach into the millimeter wave frequencies but as the physical dimensions shrink, power handling capabilities are reduced and losses increase. The required inputs are the Dk value for the dielectric constant of the PCB substrate, and the. , an industry-leading manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers with answering complex RF-related product and design questions that arise on a daily basis. Fig. Pasternack Enterprises (Irvine, CA), a manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers in answering complex RF-related product and design questions that may arise on a daily basis. 02 36. Link Budget Calculator provides a signal loss and gain budget based on the user-defined link availability required given as a percentage of time due to path fade statistics. 4mm, 2. N-Way Power Divider Calculator Pasternack. Here's how: Select your connectors and cable type using the parameters listed below in any order you prefer. The Pasternack family name was found in the USA, and Canada between 1880 and 1920. The calculator supports All groupers. Mark S. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. For example, if you wish to input "25000000", just type "25M" instead. Isolators are made of ferrite materials and. PE8327 coaxial SMA isolator is one of over 40,000 RF, microwave and millimeter wave. The calculator shown below uses Wadell’s equations for differential impedance, which can be found in the seminal textbook Transmission Line Design Handbook. Medicare Part A (legacy only) - use 66 - RUG IV and select your state or county. See the quick-reference table below for all compatible SI prefixes. The link budget is an important value that enables engineers to design systems based on the required sensitivity of a receiver at a. This calculation can be used as part of a more in-depth link budget analysis when planning the design of. Pasternack RF circulators are passive 3-port microwave devices which control the signal direction and flow inside of an RF circuit. Our manufacturing facility certified to ISO 9001:. If a polarization is circular, enter 0 for the dB axial ratio and 0 for the tilt angle. Calculates the resistor values, attenuation, minimum attenuation, 'impedance', reflection coefficient, VSWR and return loss of a matching Pi attenuator. 06 29. 727 p asernaom 50 Ohm Conversion Table dBm V Po dBm V Po dBm mV Po dBm µV Po +53 100. It shows a range of 2. , a manufacturer and supplier of RF, microwave, and millimeter-wave products, has created and published a new set of RF calculators. RF Link Budget Calculator This radio link budget calculator tool lets you quickly compute the Free Space Loss, Received Signal Strength, Fade Margin, Distance and more. 3 dB, Beamwidth= 0. The equations that are used to calculate stripline impedance are simple, but there is a large number of terms, which includes a requirement to calculate. It helps to determine as to how much power we need to generate using RF Transmitter part bearing into consideration antenna gain information. For example, if you wish to input "25000000", just type "25M" instead. Step 4: Calculation of the length extension ΔL. 866. LMR-400-DB coax cable has an attenuation at 1 GHz of 4. Pasternack's Antenna Downtilt Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, that the transmitting antenna is to be positioned at for optimal signal strength and coverage. For example, if you wish to input "25000000", just type "25M" instead. RF limiters have power leveling limit thresholds of +9 dBm and have input power maximums to 1W CW. com focuses on products and tools developed by Silicon DSP Corporation for Radio Propagation in Irregular Terrain as well as Propagation through the Ionosphere. 37 km Over Horizon Over Horizon 1 0. The Power Added Efficiency of an amplifier is the ratio of produced signal power (difference between input and output power) and the DC input power for the amplifier. Supporting engineering students and faculties with the RF components, tools and resources needed to educate the next wave of innovators. A RF signal chain is merely a system of connected RF components and devices in which a signal flows from a source to a load. Our wavelength calculator tool uses the given frequency and dielectric constant/velocity of propagation (VoP) of the RF input signal. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. This RF isolator is manufactured with SMA connectors that are female. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. The Pasternack tank circuit (also known as LC circuit, resonant circuit or tuned circuit) resonance calculator uses the simple formula (below) to calculate the system's resonant frequency. In addition, we will focus on transmission line network modeling ( matching networks. [email protected]'s RF calculators and conversions provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. If the ratio (L/W) is close to unity, the radiation pattern will be symmetric but may not provide a resonable. It includes a Coaxial Cable Loss Calculator with pre. Free space loss = 36. It include antenna gain calculator, Antenna G/T ratio calculator, coaxial cable Impedance calculator, Noise temperature to Noise Figure Converter, Radar Range Calculator, resonant frequency calculator, wavelength to. Pasternack’s new RF calculators and RF conversion tools are now live on the company’s website. 727. Provide the value of the inductance (nH) or reactance along with and the frequency of operation (GHz) in the equation. The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. Pasternack Enterprises, Inc. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. 77 meter 2 Parabolic Antenna calculator equation. 17 1. Enter the power in watts (W), current in amps (A), select power factor (PF) from 0 to 1 with a 0. 28 (800) TMS-COAX • LMR-600 TIMES MICROWAVE SYSTEMS Ideal for… • Jumper Assemblies in Wireless Communications Systems • Short Antenna Feeder runs • Any application (e. Bulk quantities shipped same day. Pasternack Enterprises’ new low loss test cables utilize a specially designed 0. The IPC-2141 trace Impedance calculator will help make initial design easier by allowing the user to input basic parameters and get a calculated impedance according to the IPC-2141 standard. Hits: 6396. Link 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). Pasternack Enterprises Inc. VSWR Calculator. Pasternack spectrum and VNA network analyzer cables, SOLT. 92mm, BNC, N or SMA connector types. Reach out to us. Pasternack Enterprises RF adapters are available in quick disconnect (QD), push-on or standard interface as well as straight, 45 degrees right, radius right. Who We Are; Careers; Contact & Distributors; Feedback; Support. 7/21/2014. com. Pasternack PE3087 BNC male to BNC male cable assembly is constructed. PE6009 2 Watts RF load (also known as termination or dummy load) has a type N connector that is male. Enter your cable length and click “Create My Cable Assembly”. 009. A tank circuit refers to an LC circuit in which the inductor (L) is placed in parallel with the capacitor (C). Waveguides are. Our LMR-400-DB coax is constructed with a 0. Welcome to Pasternack's RF Institute. coax cross section. 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. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. Free OnlineEnter values for W and L for a microstrip line to determine its Zo and Electrical Length. PCB fabrication issues have less impact on microstrip circuits than GCPW circuits. The IPC-2141 trace Impedance calculator will help make initial design easier by allowing the user to input basic parameters and get a calculated impedance according to the IPC-2141 standard. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. Pasternack Pasternack Blog Impedance Calculator. D D = distance between antennas. Pasternack's RF calculators and conversions section provides. You can use it for planning your RF links with our pulsAR Wireless Ethernet Bridges, or with other radios in any frequency band. In 1880 there was 1. 195 [4. Step 1: Calculation of the Width (W) -. You can use it for planning your RF links with our pulsAR Wireless Ethernet Bridges, or with other radios in any frequency band. 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. More details for PE51083 can be seen below. Press Analyze to see the results. While this calculator will provide a baseline, any final design considerations should be made towards loss, dispersion, copper roughness, phase shift, etc. Pasternack's Power Density Calculator is designed to give the power density, in Watts per square meter, at a given distance, output power and antenna gain. It is important to note that all of the inputs into the Antenna Downtilt & Coverage Calculator should be in the linear units either inches, feet, yards, miles, centimeters, meters, or kilometers. Pasternack's RF Calculators and Conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. 8/20/2014. The Pasternack facility certified to ISO 9001:2015 ships all bias tees / bias Ts from stock the same day you order them. Following equation or formula is used for RF budget calculator. Power Added Efficiency (PAE) Calculator Explained >. Our USB controlled switches, attenuators and more software download page. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. 5 dB, Isolation 22 dB, Input Power 10 Watts, Phase Balance ± 3 Degrees. com, [email protected] venders offer a simple online calculator, where you enter the desired operating point, and it returns the dimensions. The gain of the antennas offsets the loss by a certain decibel value. RF Institute by Pasternack. A balanced RF. Exceptional technical support and customer service are on hand to assist our customers with type N connector questions. For example, if you wish to input "25000000", just type "25M" instead. This calculator can calculate the impedance and. com. 85 GHz. ) Q: What is the radiation pattern of the microstrip. Pasternack Releases New High Isolation RF Switches. The Link Budget Calculator integrated models are evaluated periodically for relevant utility and to keep them current, which results in reliable predictability for most link propagation environments. Our network analyzer cable kits, short open load thru circuit components and accessories for electronic RF testing ship world wide. If you ignore the gain at either end, i. com. So, let’s take a step-by-step look at how to get your cascade analysis rolling. com. Pasternack's bridged tee attenuator calculator (can also be called bridged T attenuator) allows you to determine the resistor values (R1 & R2) measured in Ohms. Pasternack’s new RF calculators and RF conversion tools are now live on the company’s website. Pasternack’s new RF calculators contain another value-added feature that proves useful for engineers looking to take the results of their calculations to the next step of purchasing product that. 03 34. e the transmitting and receiving end, then the FSPL would just be a factor of the frequency and distance. SMA connectors from Pasternack are available in straight, radius right angle or right angle versions, as well as, press in, bulkhead, 2 hole panel, 4 hole panel or mountless. com, 866-727-8376 US and Canada or +1-949-261-1920 International) Try our Parametric Search →. **Note: All of our calculators allow SI prefix input. Free Space Loss Calculator. x Start Chat. These fixed attenuators frequency range is from DC to 50 GHz which includes low to high power attenuators. They are available in corrugated, flexible, formable or semi-rigid versions with different constructions of conductor materials, dielectric materials, shielding configura-tions and jacket materials. 'm'. , an industry-leading manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers with answering complex RF-related product and design questions that arise on. / Similar Products. 607 1. RF calculations and RF conversions include metric. Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load. 46. This calculator helps you calculate the characteristic impedance of a coaxial cable given its dimensions. A simple, but quite useful calculator, to determine how many times further your RF link can go given a number of dB increase (or decrease) in power. The microstrip is a very simple yet useful way to create a transmission line with a PCB. Fig 3: This first-order analysis of the microstrip antenna shows the equations which define its performance. 086 1. TOOLS. Result. 8/5/2014. This antenna tilt angle calculator also provides, given a beam width, the inner and outer radii. Coax Attenuation Chart – W4RP Coax Cable Signal Loss (Attenuation) in dB per 100ft* Loss* RG-174: RG-58: RG-8X: RG-213: RG-6: RG-11: RF-9914: RF-9913: 1MHz: 1. 92mm (Type K) connectors available. US made and TAA compliant. Pasternack's Microstrip Calculator computes a microstrip's height/width ratio,. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. 7/21/2014. Our free impedance calculator for coplanar waveguide can help you with your design features to ensure your PCB is working as you intend. 'm'. Pasternack Enterprises offers the broadest and deepest inventory of RF and microwave components available. 35 degrees, Aperture= 5. Bookmark or "Favorite" this bridged tee attenuator calculator page bypressing CTRL + D. How Far will 5G Reach? OneSDR is reader-supported. 0 GHz – 6. Test and Measurement. Pasternack’s bias tees have maximum voltage ratings between 24 and 100 volts. Pasternack's Reflection Attenuator Calculator allows you to determine the two possible resistor values (R1 > Z0 & R1 < Z0) for a reflection attenuator (measured in Ohms). Standard gain horn antennas from Pasternack are ordered with a waveguide to coax adapter attached to it, known as a connectorized horn antenna. In addition, we will focus on transmission line network modeling ( matching networks. This can be set to zero, but the calculated loss will not include conductor losses. Tags: Module with Connectors, Wilkinson Power Divider. Please note that this calculator is only valid for far-field calculations. The calculator allows the user to enter the desired attenuation (in dB) and system impedance (Zo), in Ω). Welcome to the Broad River Rehab MDS Calculator! With this calculator you can explore how different items in the MDS effect reimbursment. R 1 (Ω) R 2 (Ω) Overview. Our SMA Male to. September 9, 2014. Pasternack Introduces New Series of Low PIM Cable Jumpers. The patch isAntenna Downtilt and Coverage Calculator Pasternack . The new RF calculators and converters include link budget, coax impedance, RF power conversion (such as dBm to Watts), attenuation, frequency, wavelength,. Calibration coefficients included for all newly released kits. Note: Calls may be recorded or monitored for. The coax is a good way to create a transmission line. Enter VSWR, Reflection Coefficient, or Return Loss to calculate remaining values. Step 1: The Power Density of the plane wave incident on the receive antenna which is at a distance ® from the transmitting antenna, can be calculated by: Step 2: We assume that the transmit antenna has a gain (Gt), then the power density becomes: Step 3: We assume that the receive antenna has an effective aperture of Ae. Attenuation (dB) Impedance (Ω) Outputs. 5 GHz, RF signal power tappers frequency range of up to 2. 1 red apple, unpeeled, cored, and chopped. EIRP, or effective isotropically radiated power, or equivalent isotropically radiated power, is a measurement of output power in one direction from an ideal, one dimensional source. Note: If you select a waveguide size from the dropdown below, the broad wall width will be automatically calculated. Pasternack's N-Way Power Divider Calculator allows you to calculate the total path loss (in dB) you can expect based on the number of output ports on an RF power splitter device (up to 16 ports). The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. P r = Power returning to the Receiver Antenna (1-way radar equation). Noise figure to/from noise temperature calculator from Pasternack will produce either noise figure or noise temperature, depending on the input type. RF calculations and RF conversions include metric. Panel Antenna Operates From 2. The antenna downtilt and coverage calculator (aka antenna tilt angle calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. This can be especially felt in the. Maximum DC current for our bias tees ranges from 200 mA to 7,000 mA (milliamps). The only. 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. Pasternack's Coaxial Cable Loss Calculator will produce insertion loss, as well as nominal delay, average power, and velocity of propagation (when information is available), given an input frequency and run length. 8/5/2014. The free space path loss calculator takes into account the gain on both the receiving and transmitting antennas. S. Toll-free: 866-PASTERNACK (866-727-8376) Customer Testimonials 60 GHz Systems and RF Filters RF/Microwave Calculators & Conversions. Frequency ratings for our RF dividers range from DC to 26. Free Space Path Loss assumes the space between the two antennas is an obstruction free, line-of-sight straight path through the air. Common Potentiometer 18 Jun 2020 14746. Refer following calculators on microstrip line useful for various calculations. dBμV − 60 = d B μ V − 60 =. Be The First To Know. PFD Consiltator can be downloaded here. 95]Pasternack Enterprises, Inc. 15. /. A microstrip patch antenna is one of the most popular microwave antennas. F = Pattern Propagation Factor. The FRIIS path loss calculator uses this equation to calculate the path loss and received power between a transmitter and a receiver. Here's how: Select your connectors and cable type using the parameters listed below in any order you prefer. Relative Dielectric Constant ( εr ): Track Width (S):. Panel and patch antennas from RF and microwave component international supplier and manufacturer Pasternack Enterprises. ([email protected] SMA connectors are constructed in male or female gender in standard polarity, reverse polarity (RPSMA / RP-SMA) or reverse thread threads, with 50 Ohm impedance. Top Postscoaxial cable cutoff frequency calculator Using outer and inner conductor diameters and the relative permittivity of the insulator to calculate cut-off frequency of the coaxial cable. Result. Free Space Path Loss Calculator. and a transceiver, allowing the receive signal to come from the antenna (port 1) to the receiver (port 2) while theExpert technical support and friendly customer service personnel are always here to assist you. In both cases, you’ll need to enter your stackup information into the calculator to get accurate results. Waveguide Calculator (Rectangular) Pasternack's Waveguide Calculator provides the cutoff frequency, operating frequency range and closest waveguide size for a rectangular waveguide based on the custom inputted broad wall width. Pasternack. 6, Dielectric Height is 0. Pasternack's Skin Depth Calculator returns skin-depth as a function of a material's resistivity and permeability, as well as the application frequency. com, techsupport@pasternack. Bulk quantities shipped same day. G r = Effective Aperture of the. A total of 27 RF. 256 1. This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator. 8/5/2014. 10 -3. Enter your cable length and click “Create My Cable Assembly”. Pasternack Enterprises, Inc. It also provides, given a beamwidth, the. Visit Pasternack's RF amplifiers page for product details. A simple tool to calculate parameters for an edge fed/inset fed/probe fed patch antenna or microstrip antenna. Provide values for three of the four parameters H, T, W, Z o and the relative permittivity of the dielectric.