Coupled-oscillator scanning technique for receiver applications

Author

Xudong Cao ; York, R.A.

Author_Institution

Dept. of Electr. Eng., California Univ., Santa Barbara, CA, USA

Volume

2

fYear

1995

fDate

18-23 June 1995

Firstpage

1311

Abstract

Scanning oscillator techniques previously developed for transmitter applications have been successfully applied to the receive mode. Scanning is achieved through frequency detuning in a coupled set of local oscillators. The design of a five element receiving array is presented, demonstrating a 25/spl deg/ scan range. The array consists of a local oscillator array, mixers, an antenna array and an IF summer. The local oscillator array is composed of five varactor tuned FET VCOs which are designed to work at 8.6 GHz. An injection-locking technique is described for low-phase noise applications.

Keywords

antenna arrays; antenna radiation patterns; coupled circuits; injection locked oscillators; microwave antenna arrays; microwave oscillators; receiving antennas; scanning antennas; varactors; voltage-controlled oscillators; IF summer; SHF; antenna array; coupled oscillator scanning; five element receiving array; frequency detuning; injection locking technique; local oscillator array; low phase noise applications; mixers; receiver applications; varactor tuned FET VCO; Antenna arrays; Equations; Frequency conversion; Injection-locked oscillators; Local oscillators; Mixers; Optical coupling; Phase noise; Phased arrays; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1995. AP-S. Digest

Conference_Location

Newport Beach, CA, USA

Print_ISBN

0-7803-2719-5

Type

conf

DOI

10.1109/APS.1995.530261

Filename

530261