A Second Harmonic Oscillator Using an Overmoded Waveguide Resonator with Gunn Diodes

Author

Bae, Jongsuck ; Ikeda, Mitsuhiro

Author_Institution

Nagoya Inst. of Technol., Nagoya

fYear

2007

fDate

3-8 June 2007

Firstpage

1537

Lastpage

1540

Abstract

An overmoded waveguide technique for efficient spatial power combining of solid state devices has been applied to Gunn diodes functioning in a second harmonic mode. Fifteen diodes contained in a 5times3 TE₁₀-waveguide array has oscillated at a fundamental frequency and generated second harmonic waves in a single TE₅₀-mode in the common overmoded-waveguide resonator. The overmoded-waveguide harmonic oscillator has produced 0.34 W output power with a combining efficiency of 38% at 94.8 GHz. This efficiency has been improved to 49% using a silicon output coupler.

Keywords

Gunn diodes; cavity resonators; harmonic oscillators (circuits); millimetre wave oscillators; power combiners; Gunn diodes; TE₁₀-waveguide array; frequency 94.8 GHz; overmoded waveguide resonator; power 0.34 W; second harmonic oscillator; solid state devices; spatial power combining; Cutoff frequency; Diodes; Gunn devices; Horn antennas; Oscillators; Power engineering and energy; Power generation; Power system harmonics; Rectangular waveguides; Solid state circuits; Gunn device oscillators; Harmonic generation; Millimeter wave oscillators; Power combiners;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380566

Filename

4264135