Inexpensive Vhf/Uhf Diode Rf Switch


Posted on Jan 6, 2013

This circuit uses low-cost IN4148 diodes and exhibits about 1.5 dB insertion loss from 10 to 1000 MHz w


Inexpensive Vhf/Uhf Diode Rf Switch
Click here to download the full size of the above Circuit.

ith a few volts of negative bias. D3 conducts and D1/D2 are cut off, which results in 30 to 50 dB isolation. When a few volts of positive bias are applied, Dl and D2 are biased on and D3 is cut off. This circuit should be useful in applications where a low-cost RF switch is necessary.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Lightning Activated Camera Shutter Trigger
7 MHz VFO
2x300W or 600W Power audio Amplifier
Cmos logic probe
Cosine wave Oscillator
Interface Bluetooth with LPC2148 circuit
Basic FET Amplifier
Frequency counter Input schematic
Three-phase motor overcurrent protection circuit
Touch fan speed control circuit eight stalls



Top