Affiliation(s):
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, China;
moreAffiliation(s): State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, China; Purple Mountain Laboratories, Nanjing 211111, China; ZTE Corporation, State Key Laboratory of Mobile Network and Mobile Multimedia Technology, Shenzhen 518057, China; Apple Inc., One Apple Park Way, Cupertino, CA 95014, USA;
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Xuanfeng TONG, Zhihao JIANG, Yuan LI, Fan WU, Lin PENG, Taiwei YUE, Wei HONG. A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications[J]. Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/FITEE.2300214
@article{title="A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications", author="Xuanfeng TONG, Zhihao JIANG, Yuan LI, Fan WU, Lin PENG, Taiwei YUE, Wei HONG", journal="Frontiers of Information Technology & Electronic Engineering", year="in press", publisher="Zhejiang University Press & Springer", doi="https://doi.org/10.1631/FITEE.2300214" }
%0 Journal Article %T A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications %A Xuanfeng TONG %A Zhihao JIANG %A Yuan LI %A Fan WU %A Lin PENG %A Taiwei YUE %A Wei HONG %J Frontiers of Information Technology & Electronic Engineering %P %@ 2095-9184 %D in press %I Zhejiang University Press & Springer doi="https://doi.org/10.1631/FITEE.2300214"
TY - JOUR T1 - A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications A1 - Xuanfeng TONG A1 - Zhihao JIANG A1 - Yuan LI A1 - Fan WU A1 - Lin PENG A1 - Taiwei YUE A1 - Wei HONG J0 - Frontiers of Information Technology & Electronic Engineering SP - EP - %@ 2095-9184 Y1 - in press PB - Zhejiang University Press & Springer ER - doi="https://doi.org/10.1631/FITEE.2300214"
Abstract: In this paper, a low-profile dual-broadband dual-circularly-polarized (dual-CP) reflectarray (RA) is proposed and demonstrated, supporting independent beamforming for right-/left-handed CP waves at both K- and Ka-bands. Such functionality is achieved by incorporating multi-layered phase shifting elements individually operating in the K- and Ka-bands, which are then interleaved in a shared aperture, resulting in a cell thickness of only about 0.1λL. By rotating the designed K- and Ka-band elements around their own geometrical centers, the dual-CP waves in each band can be modulated separately. For reducing the overall profile, planar K-/Ka-band dual-CP feeds with a broad bandwidth are designed based on the magnetoelectric dipoles and multi-branch hybrid couplers. The planar feeds achieve bandwidths of about 32% and 26% at K- and Ka-bands with reflection magnitudes below -13 dB, an axial ratio smaller than 2 dB, and a gain variation of less than 1 dB. A proof-of-concept dual-band dual-CP RA integrated with the planar feeds is fabricated and characterized, which is capable of generating asymmetrically distributed dual-band dual-CP beams. The measured peak gain values of the beams are around 24.3 and 27.3 dBic, with joint gain variation < 1 dB and axial ratio < 2 dB bandwidths wider than 20.6% and 14.6% at the lower-band and higher-band, respectively. The demonstrated dual-broadband dual-CP RA with four degrees of freedom of beamforming could be a promising candidate for space and satellite communications.
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