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A quadrature‐hybrid‐integrated reconfigurable feeding network for wideband quad‐polarization‐agile antenna design
Author(s) -
Wang Shi Tong,
Sun Sheng,
Sun Hucheng,
Yang Shiwen,
Hu Jun
Publication year - 2021
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22641
Subject(s) - wideband , reconfigurable antenna , agile software development , electronic engineering , bandwidth (computing) , circular polarization , computer science , engineering , electrical engineering , physics , antenna (radio) , telecommunications , coaxial antenna , microstrip antenna , software engineering , microstrip
Abstract In this article, a reconfigurable antenna with quad‐polarization radiations is proposed based on a switchable feeding network. A wideband quad‐mode feeding network is first designed by integrating a simple impedance converter with a modified hybrid coupler. By switching the p‐i‐n diodes, four‐transmission status with specific amplitudes and phase differences at feeding output ports can be obtained over a wide frequency range, hence enhancing the radiating bandwidth of two linear and two circular polarizations. Finally, a prototype of the proposed quad‐polarization‐agile reconfigurable antenna is designed and fabricated. The measured results show a wide overlapped bandwidth of 782 to 1010 MHz (25.4%) for all four polarizations with a competitive size and gain performance.