Title :
A Phase-shifterless Active Phase Array Using Coupled Oscillators
Author :
Weiliang, Gao ; Yonghua, Jiang ; Xiang, Ling ; Jun, Li
Author_Institution :
Naval Aeronaut. Eng. Inst., Yantai
Abstract :
A new kind of phased array using coupled oscillators is introduced which needs no phase shifters. Through slightly detuning the edge array elements a constant phase gradient can be established. The dynamic of nearest-neighbor coupled oscillators array is analyzed. A one-dimensional experimental array at S-band is designed, giving the actual measured phase progression that is continuously variable over the range -70deg< Deltaphi <62deg comparing the theoretical range -90deg < Deltaphi < + 90deg.
Keywords :
active antenna arrays; antenna phased arrays; coupled circuits; gradient methods; oscillators; S-band; constant phase gradient; coupled oscillators; edge array elements; phase-shifterless active phase array; Antennas and propagation; Coupling circuits; Frequency; Injection-locked oscillators; Microwave antenna arrays; Microwave oscillators; Microwave propagation; Optical coupling; Phased arrays; Voltage-controlled oscillators; oscillator; phase array; phase-shifterless;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393617
