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A Multipolarized Planar Phased Array for LEO SATCOM Applications
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DOI：10.1109/LAWP.2022.3185208.png)
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This letter presents a scalable multipolarized planar phased array for the low earth orbit satellite communication application. A dual-polarized aperture-coupled patch element antenna is proposed for designing the array, which can provide dual-linear polarization (LP) and dual-circular polarization (CP). The rotated feed technique is adopted to reduce the cross-polarization level. By using 8-channel beamformer chips and the multilayer printed circuit board technology, a phased array prototype with good electromagnetic shielding performance, high integration, and low cost is designed, fabricated, and measured. For dual-LP radiation, it steers up to the scan angles (+/- 50 degrees) with a scan loss less than 3.5 dB, and a cross-polarization level lower than -30 dB in azimuth/elevation plane and -15 dB in diagonal plane. For dual-CP radiation, it steers up to the scan angle (+/- 50 degrees) with a scan loss less than 3 dB and an axial ratio less than 3 dB. The phased array developed in this letter can be scaled to larger arrays and provides feasibility for the production of low-cost phased arrays.
Keyword:
Phased arrays
Antenna arrays
Antenna measurements
Stripline
Patch antennas
Phase measurement
Antennas
Dual-circular polarization (CP)
dual-linear polarization (LP)
K-band
phased array
satellite communication (SATCOM)
期刊
IF:
4.8
论文数:
1.0W
被引数:
2.8W
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