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- W3048159079 abstract "In this article, the design of a frequencyswitchable, square-shaped microstrip patch antenna with simultaneous circular-polarization (CP) reconfigurability is presented and experimentally verified. From the measurement of a fully functional prototype, it is confirmed that the resonant frequency of the proposed antenna can be continuously altered between 1.97 and 2.42 GHz by electronically varying its effective length. A wideband 90° phase-shifting and switching network is also designed to excite the antenna for generating CP radiation at all the tunable frequencies and altering the sense of rotation [both left-hand CP (LHCP) and right-hand CP (RHCP)]. More importantly, the antenna shows an axial ratio (AR) value that is less than 3 dB within a wide beamwidth (130-150°) at all the tuning states, and it has a maximum realized gain of 5.8 dB isotropic circular (dBic) at 2.42 GHz. The frequency with CP-reconfiguring characteristics makes the proposed antenna suitable for advanced wireless communication systems operating in the S-band, which can withstand both frequency-based challenges and signal-quality issues arising due to climatic changes." @default.
- W3048159079 created "2020-08-13" @default.
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- W3048159079 date "2020-08-01" @default.
- W3048159079 modified "2023-09-25" @default.
- W3048159079 title "A Square-Shaped Microstrip Antenna With Frequency and Circular-Polarization Reconfigurability: An Approach [Antenna Applications Corner]" @default.
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- W3048159079 doi "https://doi.org/10.1109/map.2020.2998813" @default.
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