Title :
An electronically scanned array with 180° 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
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;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4632928
