A Wideband 3-D-Printed Multibeam Circularly Polarized Ultrathin Dielectric Slab Waveguide Luneburg Lens Antenna

Siyuan Lei; Gao Wei; Kangkang Han; Xianlei Li; Tiancheng Qiu

doi:10.1109/LAWP.2022.3174866

A Wideband 3-D-Printed Multibeam Circularly Polarized Ultrathin Dielectric Slab Waveguide Luneburg Lens Antenna

Siyuan Lei, Gao Wei, Kangkang Han, Xianlei Li, Tiancheng Qiu

School of Electronics and Information

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band. The characteristic that DSW supports TE0 and TM0 waves to pass through with different phase constants is used to generate 90° phase difference to compose CP wave for the proposed structure. To prove the point, the prototype antenna is fabricated by 3-D printing and measured. The results show that the proposed LL supports multibeam application with 11 beams covering ±60° range in azimuth plane, and the 3 dB axial ratio bandwidth for multibeam antenna is 23.5% with reflection coefficient lower than -10 dB and gain higher than 13.7 dBi. The measured results show good coincidence with simulated ones.

Original language	English
Pages (from-to)	1582-1586
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	8
DOIs	https://doi.org/10.1109/LAWP.2022.3174866
State	Published - 1 Aug 2022

Keywords

Circularly polarized (CP) antenna
dielectric slab waveguide (DSW)
Luneburg lens (LL)
multibeam antenna
three-dimensional (3-D)-printing
wideband antenna

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10.1109/LAWP.2022.3174866

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title = "A Wideband 3-D-Printed Multibeam Circularly Polarized Ultrathin Dielectric Slab Waveguide Luneburg Lens Antenna",

abstract = "This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band. The characteristic that DSW supports TE0 and TM0 waves to pass through with different phase constants is used to generate 90° phase difference to compose CP wave for the proposed structure. To prove the point, the prototype antenna is fabricated by 3-D printing and measured. The results show that the proposed LL supports multibeam application with 11 beams covering ±60° range in azimuth plane, and the 3 dB axial ratio bandwidth for multibeam antenna is 23.5% with reflection coefficient lower than -10 dB and gain higher than 13.7 dBi. The measured results show good coincidence with simulated ones.",

keywords = "Circularly polarized (CP) antenna, dielectric slab waveguide (DSW), Luneburg lens (LL), multibeam antenna, three-dimensional (3-D)-printing, wideband antenna",

author = "Siyuan Lei and Gao Wei and Kangkang Han and Xianlei Li and Tiancheng Qiu",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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doi = "10.1109/LAWP.2022.3174866",

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AU - Lei, Siyuan

AU - Wei, Gao

AU - Han, Kangkang

AU - Li, Xianlei

AU - Qiu, Tiancheng

PY - 2022/8/1

Y1 - 2022/8/1

N2 - This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band. The characteristic that DSW supports TE0 and TM0 waves to pass through with different phase constants is used to generate 90° phase difference to compose CP wave for the proposed structure. To prove the point, the prototype antenna is fabricated by 3-D printing and measured. The results show that the proposed LL supports multibeam application with 11 beams covering ±60° range in azimuth plane, and the 3 dB axial ratio bandwidth for multibeam antenna is 23.5% with reflection coefficient lower than -10 dB and gain higher than 13.7 dBi. The measured results show good coincidence with simulated ones.

AB - This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band. The characteristic that DSW supports TE0 and TM0 waves to pass through with different phase constants is used to generate 90° phase difference to compose CP wave for the proposed structure. To prove the point, the prototype antenna is fabricated by 3-D printing and measured. The results show that the proposed LL supports multibeam application with 11 beams covering ±60° range in azimuth plane, and the 3 dB axial ratio bandwidth for multibeam antenna is 23.5% with reflection coefficient lower than -10 dB and gain higher than 13.7 dBi. The measured results show good coincidence with simulated ones.

KW - Circularly polarized (CP) antenna

KW - dielectric slab waveguide (DSW)

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KW - multibeam antenna

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VL - 21

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JO - IEEE Antennas and Wireless Propagation Letters

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A Wideband 3-D-Printed Multibeam Circularly Polarized Ultrathin Dielectric Slab Waveguide Luneburg Lens Antenna

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