Abstract
In this paper, an oscillator array using a sequential injection-locking coupling circuit is proposed. Push-Push oscillators are used for the unit oscillator. The sequential injection-locking coupling circuit consists of a buffer amplifier and a phase shifter. The signal of a push-push oscillator is injected to the adjoining oscillator via the coupling circuit. The phase difference between the output signals of the Push-Push oscillators is controlled by the phase shifter in the coupling circuit. The basic performance of the oscillator array using two Push-Push oscillators is investigated. The Push-Push oscillator array is designed in Ku-band. The phase shift between the Push-Push oscillators has attained 214 degrees at 16.4 GHz.
