標題: | Switchable Quadri-Polarization Slot Antenna Using a Single Feed Port |
作者: | Chi, Pei-Ling Deng, En 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | PIN diodes;quadri-polarization;slot;switchable |
公開日期: | 1-一月-2017 |
摘要: | In this paper, a switchable slot antenna with four polarization states excited by a single port is proposed. The slot radiator is coplanar with a coplanar waveguide, which is excited by a microstrip line on the other side of the substrate. To demonstrate polarization diversity and achieve impedance matching for each state, the PIN diodes were used as the switching elements to select the particular feeding structure and the associated matching network. Experimental results show that this antenna can exhibit right-handed and left-hand circular polarizations, vertical and horizontal (linear) polarizations with measured gains of 1.89 dBi, 2.51 dBi, 2.08 dBi, and 2.62 dBi, respectively. The 3-dB axial-ratio bandwidths for the right-hand and left-hand circular polarizations are 9% and 14.6%, respectively. Within the operating bands, good return losses are obtained. |
URI: | http://hdl.handle.net/11536/146901 |
ISSN: | 1522-3965 |
期刊: | 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING |
起始頁: | 2211 |
結束頁: | 2212 |
顯示於類別: | 會議論文 |