Spatial power combining of Gunn diodes using an overmoded-waveguide resonator at millimeter wavelengths

Author

Bae, Jongsuck ; Unou, Takanori ; Fujii, Tetsu ; Mizuno, Koji

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

46

Issue

12

fYear

1998

fDate

12/1/1998 12:00:00 AM

Firstpage

2289

Lastpage

2294

Abstract

A millimeter-wave oscillator which incorporates an overmoded-waveguide resonator with an array of TE₁₀-mode waveguides containing Gunn diodes, has been developed as a means for achieving highly efficient spatial power combining. This oscillator makes use of mode conversion of radiation power from Gunn diodes in the waveguide array to the overmoded-waveguide resonator to produce high power at millimeter wavelengths. An efficiency of about 83% and an output power of 1.5 W (continuous wave) at 61.4 GHz, has been achieved with a 3×3 waveguide Gunn diode array

Keywords

Gunn oscillators; arrays; equivalent circuits; millimetre wave oscillators; power combiners; resonators; 1.5 W; 61.4 GHz; 83 percent; EHF; Gunn diodes; MM-wave oscillator; TE₁₀-mode waveguides; high power production; millimeter wavelengths; mode conversion; overmoded-waveguide resonator; spatial power combining; waveguide Gunn diode array; waveguide array; Couplers; Diffraction; Diodes; Gunn devices; Microwave antenna arrays; Millimeter wave communication; Oscillators; Power combiners; Waveguide theory; Wavelength conversion;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.739213

Filename

739213