Title :
Calibration method for the single RF channel digital beamforming antenna array
Author :
Zhang, Jindong ; Wu, Wen ; Fang, Da-Gang
Author_Institution :
Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A calibration method is proposed for the single RF channel digital beamforming (DBF) Antenna Array. The on-line test of the θ/π phase shifters is carried out by using time sequence phase weighting (TSPW) technique based on the known incident plane wave. After errors of all the shifters being obtained, the complex distribution on the aperture could be corrected. The corrected data are then used to finally obtain the multi-beam patterns. The measured results validate the efficiency of the proposed method.
Keywords :
antenna arrays; antenna radiation patterns; array signal processing; calibration; multibeam antennas; phase shifters; TSPW technique; calibration method; incident plane wave; multibeam patterns; phase shifter online test; single-RF channel DBF antenna array; single-RF channel digital beamforming antenna array; time sequence phase weighting technique; Calibration; DBF; Moore-Penrose Pseudo-inverse; Single RF Channel; TSPW;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6036980
