A staple of the radio amateur’s arsenal of test equipment in previous decades was the dip meter. This was a variable frequency oscillator whose coil would be placed near the circuit to be tested ...

Traditionally, tuning RF oscillator circuits has been a function of an ... that are capable of affecting a large change on the frequency of a circuit can be quite expensive he set out to find ...

Photonic technology can now be used to construct miniature sources of high-frequency radio waves that have ... pursued the realization of a microwave oscillator based on RF photonics.