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Cantenna Calculator


Cantenna Calculator

802.11b and 802.11g wifi operates between 2412 mhz and 2462 mhz. the te11 cut-off frequency

post 04 Sep 2024


Antenna Calculator Links

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Return Loss Calculator
Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load

Single Layer Air Core Inductor Design
Round wire coil with dimensions and current-sheet approximation

Sophisticated Helix Antenna Design
With matching Coax to 50 ohm<

The Quarter-wave stub
The Quarter-wave stub can be used for many purposes. If it is left with an open end it can be used as a notch filter to attenuate certain frequencies

RF-Calkulator
Wavelength calculator,resonance calculator,the ohm's law,air condensers calculator,coils calculator


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

30 Volt Computer Power Supply Stack

30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground