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

Autor: Qing-Xin Chu, Hao-Tao Hu, Jian-Feng Qian, Yue-Hua Ding, Fu-Chang Chen
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Antennas and Propagation. 67:654-658
ISSN: 1558-2221
0018-926X
Popis: 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 $6.6\times $ the center frequency.
Databáze: OpenAIRE