Title :
Calibration Method of Multi-Beam Antenna Array Channels
Author :
Dong, Yazhou ; Hua, Guang
Author_Institution :
Nat. Key Lab. of Space Microwave Technol., China Acad. of Space Technol. (Xi´´an), Xi´´an, China
Abstract :
This paper presents a procedure used to calibrate a multi-beam antenna array to compensate for channel amplitude and phase mismatch. The multi-beam smart antenna is based on Butler matrix. The calibration algorithm of N elements array antenna involves transmission of N time multiplexed orthogonal encoded signals. The received signals are coherently detected, accumulated in vector forms, and a set of correction factors are decoded from the received signal using the inverse of the encoded matrix. A Hadamard matrix is used as the encoding matrix. The simulation and analysis of calibration method are carried out with Matlab.
Keywords :
Hadamard matrices; adaptive antenna arrays; calibration; Butler matrix; Hadamard matrix; calibration method; channel amplitude; encoded matrix; multi-beam antenna array channels; multi-beam smart antenna; multiplexed orthogonal encoded signals; phase mismatch; received signals; Antenna arrays; Array signal processing; Butler matrix; Calibration; Laboratories; Microwave antenna arrays; Phased arrays; Space technology; Symmetric matrices; Transmitting antennas;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.376
