期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 22, 期 7, 页码 1537-1541出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2023.3250322
关键词
Compact folded slot; endfire antenna; pattern reconfigurable; vertical polarization
A pattern reconfigurable antenna with vertical polarization is proposed, using two folded near-coupled slot antennas. By designing a central feeding structure and a reconfigurable feeding strip based on the current reverse principle with p-i-n diodes, two endfire beams and a bidirectional beam can be achieved. A prototype is fabricated and measured to validate the design, obtaining three high-quality radiation beams. In the two endfire states, the measured peak gain can reach 7.15 dBi with a front-to-back ratio of more than 22 dB at 5.7 GHz, while in the bidirectional state, the measured peak gain can reach 3.94 dBi with an F/B ratio of less than 0.3 dB.
A pattern reconfigurable antenna with vertical polarization is proposed based on two folded near-coupled slot antennas. To achieve two endfire beams and a bidirectional beam, respectively, a central feeding structure and a reconfigurable feeding strip are designed based on the current reverse principle with the help of p-i-n diodes. A prototype has been fabricated and measured to validate this design. Three high-quality radiation beams have been obtained. In the two endfire states, the measured peak gain can reach 7.15 dBi and the front-to-back (F/B) ratio is more than 22 dB at 5.7 GHz. In the bidirectional state, the measured peak gain can reach 3.94 dBi and the F/B ratio is less than 0.3 dB.
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