Harmonic generation in the active antenna integrated with substrate integrated waveguide

 

V. E. Lyubchenko, E. O. Yunevich, V. I. Kalinin, V. D. Kotov, D. E. Radchenko, S. A. Telegin

Kotel’nikov Institute of  Radioengineering and Electronics of Russian Academy of Sciences, Fryazino branch

 

 The paper is received on February 18, 2016

 

Abstract. Microwave oscillator, based on the microstrip log-periodic antenna integrated with field-effect transistor and  substrate integrated waveguide (SIW) is investigated. SIW geometry provides the oscillator fundamental frequency cutting off. Electric field distribution at the fundamental and second harmonic frequencies is obtained via FDTD method. Second harmonic oscillation at 27 GHz with 100 uW output power is experimentally obtained.

Key words: microwave, oscillator, substrate integrated waveguide, log-periodic antenna, field-effect transistor.