A 10 GHz integrated class-E oscillating annular ring element for high-efficiency transmitting arrays

Author

Hagerty, J.A. ; Popovic, Z.

Author_Institution

Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA

Volume

2

fYear

2002

fDate

2-7 June 2002

Firstpage

1317

Abstract

An X-band oscillating element can be achieved in compact form with class-E operation and high directivity. An annular ring is used both as the radiating element and microstrip feedback circuit for the class-E amplifier. A maximum conversion efficiency of the DC power consumption to radiated copolarized power is 55% at 10 GHz with maximum effective radiated power of 23.6 dBm and total radiated power of 15.5 dBm. This active antenna element is shown to be a good candidate for high aperture efficiency spatial power combining.

Keywords

active antenna arrays; antenna radiation patterns; feedback oscillators; microstrip antenna arrays; microwave oscillators; power combiners; switching circuits; transmitting antennas; 10 GHz; 55 percent; X-band oscillating element; active antenna element; annular ring; class-E amplifier; class-E operation; compact form; distributed oscillating elements; free-space power combining; high aperture efficiency spatial power combining; high directivity; high-efficiency transmitting arrays; microstrip feedback circuit; radiating element; switched mode; Antenna feeds; Aperture antennas; Energy consumption; FETs; Feedback circuits; Impedance; Microstrip; Oscillators; Polarization; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2002 IEEE MTT-S International

Conference_Location

Seattle, WA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7239-5

Type

conf

DOI

10.1109/MWSYM.2002.1011911

Filename

1011911