Yagi-Configured Electrically Small Antenna with Quad-Polarization Diversity
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 2021, 00, pp. 1697-1698
- Issue Date:
- 2021-02-17
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A polarization-reconfigurable, high-directivity, Yagi-configured, near-field resonant parasitic (NFRP), electrically small antenna (ESA) is presented. The antenna is composed of a director, a reflector, and an electrically-controlled driven element loaded with four p-i-n (PIN) diodes. Two linear polarization ( x-LP and y ·LP) and two circular polarization (LHCP and RHCP) states are achieved simply by controlling the ON/OFF states of the PIN diodes. The measured results demonstrate that in its x(y)-LP state, the peak realized gain, front-to-back ratio, and radiation efficiency values are, respectively, ~3.08 (3.2) dBi, ~11.0 (11.05) dB, and ~77% (73%), and that in its LHCP (RHCP) state they are, respectively, ~3.0 (3.1) dBi, ~ 12.1 (11.18) dB, and ~ 72% (70%).
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