Title :
Study of side lobe levels for wideband phased arrays
Author :
Jin, Mou-ping ; He, Cheng
Author_Institution :
East China Res. Inst. of Electron. Eng. (ECRIEE), Hefei, China
Abstract :
Utilization of true-time-delay (TTD) is an important approach for improving the beam-pointing accuracy of wideband phased arrays. This paper studies the side lobe properties as the true-time-delay are equipped at subarray level. The study shows that side lobe levels increase because of periodic phase error. And then, an element-level TTD line scheme is proposed for effective reduction of side lobe levels.
Keywords :
antenna phased arrays; broadband antennas; delays; beam-pointing accuracy; element-level TTD line scheme; periodic phase error; side lobe levels; subarray level; true-time-delay utilization; wideband phased antenna arrays; Antenna radiation patterns; Delay effects; Phase shifters; Phased arrays; Wideband;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230189
