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Ku band second harmonic N-coupled push-push oscillator array using microstrip resonator

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3 Author(s)
Kawasaki, K. ; Saga University, Japan ; Tanaka, T. ; Aikawa, M.

This paper presents the second harmonic push-push oscillator array. By using the push-push oscillator, a high frequency signal is easily generated using inexpensive low frequency devices. These push-push oscillators are connected with coupling circuits which are composed of microstrip resonators. The coupling circuit has two ports to connect the push-push oscillators. The reflection constant, S11 and S22, of the coupling circuit are controlled by a varactor diode. In the coupling circuit, phase of the S11 is almost constant, and the other S22 is changed by the reactance of the varactor diode. Therefore, the output signals of the push-push oscillators are generated with different phase. This second harmonic push-push oscillator array is designed in Ku band. In this study, the basic performance of the oscillator array using two push-push oscillators is basically investigated. The phase shift introduced between two oscillators is 451 degrees at 14.75 GHz.

Published in:

Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International

Date of Conference:

23-28 May 2010