A coupled oscillator array using push-push oscillators and resonator type coupling circuits is presented. In the proposed oscillator array, the coupling circuit operates at the fundamental frequency and the output signal is the 2nd harmonics. The adjacent oscillators are connected via the coupling circuits. The coupling circuit is used to synchronize the oscillators and control the phase difference of the output signals. In this study, a three elements push-push oscillator array has been designed in Ku band. The measured phase shift between the output signals of the adjacent oscillators is 511 degrees at the maximum.
"A Push-Push Oscillator Array Using Resonator Type Coupling Circuits," Progress In Electromagnetics Research C,
Vol. 54, 85-94, 2014. doi:10.2528/PIERC14090901
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