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Journal Article
Compact Dual-Band, Dual-Circular Polarized Microstrip Antenna Array for K/Ka-Band Application
- Authors
- Nohgyeom Ha, Gyoungdeuk Kim, Hyun-Cheol Bae, Sangkil Kim
- Issue Date
- 2025-04
- Citation
- IEEE Open Journal of Antennas and Propagation, v.6, no.2, pp.372-382
- ISSN
- 2637-6431
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A novel dual-band and dual-circularly polarized microstrip antenna design for a small AAV or a low earth orbit (LEO) satellite applications at K/Ka-band is proposed in this paper. Utilizing arrow-shaped and T-shaped stubs, the proposed design ensures right-hand and left-hand circular polarization across two frequency bands. The design activates orthogonal modes (TM10/TM01 and TM30/TM21) simultaneously, leveraging arrow-shaped and T-shaped stubs to finely tune resonant frequencies. The dimensions of these stubs facilitate independent adjustment of each operational band, ensuring optimized antenna functionality across different frequencies. Verification through a 2×2 antenna array design at 18.6 GHz and 30.9 GHz demonstrates the proposed design concept, achieving impedance bandwidths of 11.0% and 4.8%, axial ratio bandwidths of 3.7% and 2.3%, and realized gains of 9.45 dBic at 18.6 GHz and 10.78 dBic at 30.9 GHz, affirming its potential for advanced communication applications.
- KSP Keywords
- 6 GHz, Antenna array design, Antenna design, Arrow-shaped, Axial Ratio, Circular polarized, Design concept, Different frequency, Dual-band, Ka-Band, Left-hand circular polarization(LHCP)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
