ZHANG Pengfei, LIU Shizhong, CHEN Rongrong, HUANG Xinglin. A Reconfigurable Microstrip Patch Antenna with Frequency and Circular Polarization Diversities[J]. Chinese Journal of Electronics, 2016, 25(2): 379-383. doi: 10.1049/cje.2016.03.027
Citation: ZHANG Pengfei, LIU Shizhong, CHEN Rongrong, HUANG Xinglin. A Reconfigurable Microstrip Patch Antenna with Frequency and Circular Polarization Diversities[J]. Chinese Journal of Electronics, 2016, 25(2): 379-383. doi: 10.1049/cje.2016.03.027

A Reconfigurable Microstrip Patch Antenna with Frequency and Circular Polarization Diversities

doi: 10.1049/cje.2016.03.027
Funds:  This work is supported by the National Natural Science Foundation of China (NSFC) (No.61201023) and the Fundamental Research Found for the Center University (No.K5051302021).
  • Received Date: 2014-02-10
  • Rev Recd Date: 2014-04-08
  • Publish Date: 2016-03-10
  • A novel microstrip patch antenna with both frequency and circular polarization diversities is presented. The proposed antenna consists of two parts, a patch with two orthogonal slots on the upper substrate and a 3dB hybrid coupler fed structure which printed on the lower substrate. Two groups of diodes placed across the orthogonal slots are utilized to achieve frequency reconfiguration. Another two diodes, placed between the input port of the antenna and the 3dB hybrid coupler, are utilized to switch between Left-hand circular polarization (LHCP) and Right-hand circular polarization (RHCP). Full wave simulation is used for the antenna analysis, and a prototype of the antenna with an integrated Direct current (DC) biasing circuit has been fabricated and measured. The results verify the reconfigurable characteristics of the antenna and demonstrate a good candidate for wireless communication applications.
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