Phase tuning beyond 180 degrees by injection-locked oscillators

Author

Wong, K.W. ; Lai, A.K.Y.

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Volume

3

fYear

1993

fDate

19-21 Oct. 1993

Firstpage

1

Abstract

A method to give phase tuning beyond 180 degrees using fundamental injection locking is presented in the paper. This is particularly useful for phased array antenna phase tuning which, previously, is limited to 180 degrees. It is shown that by phase shift accumulation in cascaded injection-locked oscillators, the phase tuning range can go beyond 180 degrees. Two injection-locked oscillators cascaded together are used to demonstrate the theoretical prediction, which theoretically can give 360 degrees phase shift. In addition, the effect on phase shift due to the locking regions is discussed.<>

Keywords

antenna accessories; antenna phased arrays; phase control; phase shifters; radiofrequency oscillators; tuning; cascaded injection-locked oscillators; fundamental injection locking; injection-locked oscillators; locking regions; phase shift accumulation; phase tuning; phased array antenna; Antenna arrays; Injection-locked oscillators; Nonlinear optical devices; Nonlinear optics; Optical arrays; Optical control; Optical variables control; Phase control; Phased arrays; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on

Conference_Location

Beijing, China

Print_ISBN

0-7803-1233-3

Type

conf

DOI

10.1109/TENCON.1993.327907

Filename

327907