A Dual-Band Coupled Resonator Decoupling Network for Two Coupled Antennas
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摘要A new decoupling scheme called dual-band coupled resonator decoupling network (CRDN) is presented. By properly designing the coupling coefficients between two pairs of coupled resonators, the network can effectively reduce the mutual couplings between two coupled dual-band antennas in two bands simultaneously. The new scheme is proved by a practical microstrip version of the device for two dual-band antennas working at 2.4 and 5.2 GHz frequency bands. A compact planar dual-band CRDN consisting of a pair of dual-band open-loop square ring resonators is proposed. The measured scattering parameters of two coupled antennas with and without the dual-band CRDN in free space (FS) and with hand phantom demonstrate that the isolation between the two antennas in both the low and high bands can be improved from 8 to 10 dB, respectively, to below 20 dB while maintaining a good matching performance. The total efficiency and envelop correlation coefficient for the decoupled antennas show a significant improvement as compared to the coupled antenna case. The proposed dual-band CRDN scheme is easy to be implemented in an integrated device, and is very attractive for practical multiple input and multiple output (MIMO) applications.
著者Zhao LY, Wu KL
期刊名稱IEEE Transactions on Antennas and Propagation
出版年份2015
月份7
日期1
卷號63
期次7
出版社Institute of Electrical and Electronics Engineers (IEEE)
頁次2843 - 2850
國際標準期刊號0018-926X
電子國際標準期刊號1558-2221
語言英式英語
關鍵詞Compact antenna array; coupled resonators; decoupling network; dual-band; multiple input and multiple output (MIMO); mutual coupling
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; Telecommunications

上次更新時間 2021-15-01 於 23:31