A Retrodirective Array Based on Phase Detection and Frequency Scanning

Author

Watanabe, Monte K. ; Shiroma, Grant S. ; Takase, Brandon O. ; Akagi, Justin M. ; Shiroma, Wayne A.

Author_Institution

Univ. of Hawaii at Manoa, Honolulu

fYear

2007

fDate

3-8 June 2007

Firstpage

1715

Lastpage

1718

Abstract

A novel retrodirective array consisting of a single-VCO frequency-scanned array with phase-detecting control circuitry is presented. An analog third-order polynomial control circuit is used to precision-match the phase detection error voltage to the VCO tuning voltage characteristic for accurate steering. The interrogator and retrodirective transmit frequencies are 1.0 GHz and 7.3 GHz, respectively. Retro-directivity is reported for angles of 0deg, -20deg, and +15deg.

Keywords

antenna phased arrays; beam steering; phase detectors; VCO tuning voltage characteristic; analog third-order polynomial control circuit; beam steering; control circuitry; frequency 1 GHz; frequency 7.3 GHz; interrogator; phase detection error voltage; retrodirective array; single-VCO frequency-scanned array; Antenna arrays; Circuit optimization; Detectors; Frequency; Phase detection; Phase shifters; Phased arrays; Sensor arrays; Voltage control; Voltage-controlled oscillators; Beam steering; phased arrays; retrodirective array;

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.2007.380039

Filename

4264183