K-/Ka-band Shared-Aperture Dual-Circularly Polarized Wide-Angle Scanning Phased Array
In this manuscript, a novel dual-band shared-aperture dual-circularly polarized (CP) phased array antenna for satellite communication is proposed, which is constructed by 4 × 4 dual-band (K-/Ka-band) elements and 8 higher-band (Ka-band) elements. The two type elements are both excited by the travelling-wave sequential feeding network and employ stacked metasurface structure as radiator to realize dual-CP, guarantee the planar integration and compact configuration. The measured results show that the proposed array operates at 19.5-21.2 GHz (8.3%) and 27.5-28.8 GHz (2.3%) respectively, and the isolations between adjacent elements in each band are higher than 19 dB. The scanning angle is up to ± 55° in K-band and ± 60° in Ka-band, and both the ARs and gain drops are less than 5 dB in the whole scanning ranges of two bands.
Authors
- Hang Wong (ORCID: https://orcid.org/0000-0002-4009-7009)
- Wanchen Yang (ORCID: https://orcid.org/0000-0003-4663-1265)
- Wenquan Che (ORCID: https://orcid.org/0000-0002-9388-6570)
- Quan Xue (ORCID: https://orcid.org/0000-0002-4226-2127)
- Chujun Liang
Institutions
- City University of Hong Kong (HK)
- South China University of Technology (CN)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Published
- 2024-09-22
- DOI
- https://doi.org/10.1109/apcap62011.2024.10881459
- Primary Topic
- Antenna Design and Optimization
- Type
- article
- Field-Weighted Citation Impact
- 0.00