Title :
A joint beam control method of optical TTDs and phase shifters in phased array antennas
Author :
Ai, Xiaoping ; He, Zishu ; Gao, Yuxiang ; Han, Chunlin
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
An optical true time delay (OTTD) for a sub-array of antennas is an important means of optically controlling phased array antennas (PAA). The paper introduces the sub-array architecture of phased array antennas based on an OTTD. It also provides a joint beam control method of OTTDs and phase shifters, by which the OTTD errors can be corrected and the pointing accuracy in phased array antennas can be improved. The results of computer simulation show the correctness of this OTTD method.
Keywords :
antenna feeds; antenna phased arrays; array signal processing; beam steering; military radar; optical delay lines; phase shifters; radar antennas; beam control method; error correction; joint beam control method; modem wars; optical true time delay; phase shifters; phased array antennas; radar; sub-array architecture; Antenna arrays; Computer architecture; Computer errors; Computer simulation; Delay effects; Error correction; Optical arrays; Optical control; Phase shifters; Phased arrays;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346321
