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E-Plane Beam-Steerable Patch Array With Enhanced Directivity Using Nonradiating Resonator
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DOI：10.1109/LAWP.2023.3323303.png)
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摘要
En 中文
This letter presents an E-plane beam-steerable three-element patch array with the nonradiating resonators (NRRs) inserted between the driven element and the parasitic elements. The additional NRRs can provide a large maximum phase difference between the adjacent radiating elements to improve the steering range, achieve a large induced voltage on the parasitic elements to improve the directivity, and increase the distance between the two adjacent radiating elements to narrow the half-power beamwidth. By tuning the resonant frequencies of the NRRs and the parasitic elements using the varactors, the beam of the array can continuously scan around the boresight direction. Finally, a demonstration is designed, fabricated, and tested. The measured (simulated) results show this patch array operated at 2.41 GHz (2.4 GHz) can scan from +26 degrees to -29 degrees (+31 degrees to -31 degrees) with the realized gain varying from 6.3 to 8.8 dBi (8.1-10.4 dBi).
Keyword:
Phased arrays
Couplings
Resonator filters
Resonant frequency
Antennas
Varactors
Antenna radiation patterns
Beam steering
electrically steerable antenna
patch antenna
phased array
期刊
IF:
4.8
论文数:
1.0W
被引数:
2.8W
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