A Circularly Polarized Wide-scan Waveguide Slot Phased Array Antenna with High Efficiency for Ka Band Application

Bin LIU; Shengming GU; Mingxia MENG; Yongkang SHI; Keqian DING; Lei XU; Yutian YANG; Junli CHEN

doi:10.11999/JEIT200392

Volume 43 Issue 6

Jun. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(6): 1630-1636

Bin LIU, Shengming GU, Mingxia MENG, Yongkang SHI, Keqian DING, Lei XU, Yutian YANG, Junli CHEN. A Circularly Polarized Wide-scan Waveguide Slot Phased Array Antenna with High Efficiency for Ka Band Application[J]. Journal of Electronics & Information Technology, 2021, 43(6): 1630-1636. doi: 10.11999/JEIT200392

Citation:

Bin LIU, Shengming GU, Mingxia MENG, Yongkang SHI, Keqian DING, Lei XU, Yutian YANG, Junli CHEN. A Circularly Polarized Wide-scan Waveguide Slot Phased Array Antenna with High Efficiency for Ka Band Application[J]. Journal of Electronics & Information Technology, 2021, 43(6): 1630-1636. doi: 10.11999/JEIT200392

Citation:

Bin LIU, Shengming GU, Mingxia MENG, Yongkang SHI, Keqian DING, Lei XU, Yutian YANG, Junli CHEN. A Circularly Polarized Wide-scan Waveguide Slot Phased Array Antenna with High Efficiency for Ka Band Application[J]. Journal of Electronics & Information Technology, 2021, 43(6): 1630-1636. doi: 10.11999/JEIT200392

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A Circularly Polarized Wide-scan Waveguide Slot Phased Array Antenna with High Efficiency for Ka Band Application

doi: 10.11999/JEIT200392

1.
Beijing Research Institute of Telemetry, Beijing 100076, China
2.
Shanghai Academy of Spaceflight Technology, Shanghai 201109, China

Received Date: 2020-05-19
Rev Recd Date: 2020-10-24

Available Online: 2020-10-29

Publish Date: 2021-06-18

Abstract

Abstract

A novel f-letter waveguide slot with small size and low-profile is presented in this paper. The height of the circular polarizer is only λ0/6, and the width is about 2λ0/5. Based on the new circular polarizer, a circularly polarized ridge-waveguide slot linear array antenna with lower-profile and high aperture efficiency is designed. Using the linear array as the antenna cell, a 16-cells Ka-band circularly polarized wide-scan ridge-waveguide slot phased-array antenna with high efficiency and lightweight is designed, simulated and fabricated to achieve ±60° wide-scan for the space application. The simulated and measured results show that the phased-array antenna can achieve one-dimensional wide-angle beam-scanning with ±60° scan range. Across the scan coverage, the axial ratio is less than 4.1 dB and the gain variation is less than 4.3 dB. The measured antenna gain is higher than 35.9 dBi in the 0° scan-angle, and the corresponding efficiency near 85% are obtained.
- Phased-array antenna,
- Waveguide slot antenna,
- Ka band,
- Circularly polarized,
- Wide-scan

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References(18)

References

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