Forum Diagram

Microwave Detector Circuit Diagram

Its operation is simple, the sign of Microwave and captured by the receiving antenna W1 and W2, amplified by the transistor VT1, reaches the detector, two diodes, VD1 and VD2, and then to an AF amplifier, transistor VT2 where a signal is emitted sound. According to the creators, this detector electromagnetic high frequency radiation has a range that can reach over 10 meters, depending on the power of the emitted radiation.

Detector electromagnetic radiation in the microwave spectrum



As the project is Russian, the components, especially semiconductors has a strange marking, but substitutes may be used, provided they meet the criteria of the circuit, such as gain, frequency and voltage.

L1 is a coil 5 to 7 turns of enameled 0.3-0.6 mm in a shape of 6 mm diameter wire.



Diodes, I think we can start to put the BAV99, but any diode high speed signal may be experienced. The transistor is critical as well, I think we get a replacement for the desired frequency is BRF92 up to 5Ghz or BFG591, which can reach 7GHz quietly. I am citing this as substitutes SMD video below colleague used the BRF92 and BAV99 but BFG591 can replace without problems.