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Calculator Index
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Amplifier
dc Conditions
Determines the dc conditions of a variable configuration amplifier.
Characteristic
Impedance
Computes Delay, Velocity Factor, Effective Dielectric Constant and
Characteristic Impedance of a PCB track.
Circular
Capacitor
For a parallel plate, circular capacitor, showing the formula by Kirchhoff.
Coplanar
Waveguide With Ground
For Coplanar Waveguide with ground or Microstrip lines with
signal side ground plane, showing the
formula by Brian C Wadell.
Elliptical Integrals of the First Kind
With equations, for solving Elliptic Integrals of the First
Kind.
Flat Wire Inductor
For a flat wire, ribbon or PCB track showing the
formula used.
Matching
Pi Attenuator
A two part calculator which gives ideal and preferred value resistors,
showing most formulas used and a link to the others.
Matching
T Attenuator
A two part calculator which gives ideal and preferred value resistors,
showing most formulas used and a link to the others.
Microstrip
Characteristic Impedance Calculator Using a Formula by Brian C Wadell
Used for
calculating the Zo of PCB transmission lines, showing the formula used.
Microstrip
Characteristic Impedance
Uses a formula from an article by Rick Hartley and shows
the formula used.
Microstrip
Characteristic Impedance, Using The IPC-2141 Formula
Uses a formula from an article by Polar instruments,
showing the formula used.
PCB Sample Size Calculator for
Relative Dielectric Constant Measurements
Selects the optimum size for a circular plane
on a PCB. This is used for making relative dielectric constant measurements
using a Vector Network Analyser.
Pi Attenuator
Gives resistor values, attenuation, 'impedance',
reflection coefficient, VSWR and return loss of a Pi attenuator.
Rectangular Capacitor
For a rectangular parallel plate capacitor with edge
effect, showing the
formula used.
Relative Dielectric
Constant Calculator for a Circular Capacitor
Based on a formula by Kirchhoff for a circular
capacitor, showing the equations used.
Resonance
For a capacitor / inductor tank circuit, showing the
formula used.
Return
loss and mismatch loss
Active return loss and mismatch calculator with results for absolute
impedance, return loss, VSWR, reflection coefficient and mismatch loss
RF Trap With Attenuators
Computes attenuation, return loss, reflection coefficient
and VSWR . This calculator is specific to the circuit used in the RF Trap With
Attenuators FLEXI-BOX.
Round Wire ac Resistance
Gives the ac resistance of a round straight wire using common conducting materials.
Round Wire Inductance
Gives the inductance of a round straight wire using common conducting materials.
Round Wire
dc Resistance
Gives the dc resistance of a round straight wire using common conducting materials.
Skin Effect Depth
Calculates the skin effect depth for copper at a particular frequency.
Spreadsheet
An Excel spreadsheet with many simple calculations in 'blocks' that can be
built up into fairly complex calculations by simply making the input cell of any
block equal to the result of any other block. May take two or three goes before it will download!
T Attenuator
Gives resistor values, attenuation, 'impedance',
reflection coefficient, VSWR and return loss of a T attenuator.
These calculators are provided free by Chemandy Electronics in order to promote the FLEXI-BOX