An electronically scanned array with beam switching using a coupled phase-locked loop array

Author

Yan, Sheng-Hong ; Chu, Tah-Hsiung

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

This paper presents an ESA with beam-switching capability. Using a type-II CPLLA and a reference signal, this EAS steers its pattern by a DC control voltage, reduces the beam-pointing error arising from phase errors, and holds its operating frequency stably at the reference frequency. By one switch and two buffer amplifiers, it switches its pattern between the sum and difference patterns. Utilizing prescalers, its beam-scanning range is significantly extended. Thus, it has the potential for target tracking applications.

Keywords

amplifiers; antenna arrays; buffer circuits; phase locked loops; voltage control; DC control voltage; beam switching; beam-pointing error; buffer amplifiers; coupled phase-locked loop array; electronically scanned array; operating frequency; phase errors; reference frequency; Circuits; Frequency; Optical coupling; Oscillators; Phase locked loops; Phased arrays; Switches; Target tracking; Tuning; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619306

Filename

4619306