A Wide Stopband Filtering Patch Antenna and Its Application in MIMO System

作者：Qian, Jian-Feng; Chen, Fu-Chang^*; Ding, Yue-Hua; Hu, Hao-Tao; Chu, Qing-Xin

来源：IEEE Transactions on Antennas and Propagation, 2019, 67(1): 654-658.

DOI：10.1109/TAP.2018.2874764

• Filtering antenna
• multi-input multi-output (MIMO) antenna
• patch antenna
• wide stopband

This communication presents a wide stopband filtering antenna element and its application in multi-input multi-output (MIMO) system. Microstrip terminated coupled lines and a rectangle patch are utilized to generate the filtering function. By varying the length of the parallel coupled lines and open-circuited stubs, multiple transmission zeros can be introduced in the spurious band. Appropriate positioning the location of these transmission zeros enables a wide harmonic suppression. To demonstrate the proposed method, a wide stopband filtering antenna is designed and further applied in a four-element MIMO array. The measured and simulated results agree well. The proposed MIMO antenna obtains an attenuation of 12.6 dB up to 6.6x the center frequency.

• 出版日期2019-1
• 单位华南理工大学