Low cost microwave field strength meter


Posted on Apr 23, 2012

When operating, a waveguide directs energy onto a crystal detector. The diode shown is for X-band operation. The waveguide is a 1H inch piece of plastic tubing with the ends flared. The plastic is coated with an elec-troless copper solution to provide a conducting surface. The dimensions are not critical. For calibrated readings, the meter is placed in a known field or else compared to a calibrated meter


Low cost microwave field strength meter
Click here to download the full size of the above Circuit.

To operate the meter, point it away from the signal. Switch the meter to the desired range, and adjust the zero control for a 0 reading. Then point the waveguide at the signal, and read field strength directly.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Continuity Tester II
    OSCCAL Value Finder Board with 16F88
    oscillator
    Lm3485 Led Demo Board
    Electromagnetic Field Probe with Meter Outputs
    Adding sync pulses to the video signal
    One of the battery discharge protection circuit
    Using an inverter transistor monostable circuit diagram



    Top