An electronically scanned array with 180Â° scanning range using coupled phase-locked loops

Author

Yan, Sheng-Hong ; Chu, Tah-Hsiung

Author_Institution

Graduate Institute of Communication Engineering, National Taiwan University, Taipei, 10617, Taiwan, China

fYear

2008

fDate

15-20 June 2008

Firstpage

699

Lastpage

702

Abstract

In this paper, we present an active electronically scanned array with a 180deg beam-scanning angle. With using type-II coupled phase-locked loop array and a reference signal, the array has stable operating frequency and precise control of main-beam direction. Using prescalers, the beam-scanning range is extended to cover plusmn90deg off broadside. A three-element antenna array is implemented to verify this theory. The measured results agree with the simulated ones.

Keywords

antenna arrays; phase locked loops; beam-scanning angle; electronically scanned array; three-element antenna array; type-II coupled phase-locked loop array; Antenna arrays; Beam steering; Circuits; Communication system control; Frequency synchronization; Injection-locked oscillators; Phase locked loops; Phased arrays; Radio frequency; Voltage-controlled oscillators; Antenna array; beam steering; coupled oscillators; phase-locked loops; prescalers; synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4632928

Filename

4632928