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Signal-to-interference ratio improvement by using a phased array antenna of switched-beam elements
Author(s)
Date Issued
May 1, 2005
Type
Article
Abstract
A phased array antenna of switched-beam elements is proposed to improve the signal-to-interference ratio (SIR). By using 1-bit phase shifters, the main beam of the array is switched to desired signal direction, and with the switched-beam patch antenna elements the null patterns are changeable. The results of radiation patterns show that the interference suppression can be improved. Moreover, the SIR measurement is also set up in multipath environment to ensure the array performance. It is found that the SIR is significantly affected by the multipath environment; however, the SIR improvement of more than 10 dB can be obtained by changing the null patterns. © 2005 IEEE.
Citation
IEEE Transactions on Antennas and Propagation, 53(5), 1819-1828, 2005