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Conference Paper
Dual Circularly Polarized High Gain MIMO Resonance Cavity Antenna for 6G Next Generation Radio Applications
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- Authors
- Muhammad Hussain, Jaeseong Kim, Hyunjong Choi, Minhyup Song
- Issue Date
- 2026-04
- Citation
- European Conference on Antennas and Propagation (EuCAP) 2026, pp.1-5
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The proposed design methodology significantly improves the performance of a dual circularly polarized resonance cavity antenna (CP-RCA) by enhancing realized gain, aperture efficiency, and axial ratio (AR). Conventional RCAs typically employ complex, multi-layered circularly polarized partially reflecting surface (CP-PRS) superstrates to achieve circular polarization. In contrast, this work introduces a simplified, single-layer dual CP-PRS that realizes circular polarization at the design frequency of 7 GHz by ensuring the equal magnitudes and a ±90° phase difference between the orthogonal components of the transmitted waves. To further enhance the broadside realized gain, the CP-PRS is integrated with artificial magnetic conductor (AMC) unit cells, designed in compliance with Trentini's beamforming condition. The proposed CP-RCA achieves a realized gain of 12.7 dBi, aperture efficiency of 27%, and a remarkably low AR of 0.64 dB. Simulated results strongly validate the effectiveness of the proposed design methodology, highlighting its potential for advanced wireless communication systems.
- Keyword
- axial ratio (AR), circularly polarized resonance cavity antenna (CP-RCA), dual circularly polarized partially reflecting surface (CP-PRS), peak realized gain, metasurfaces
- KSP Keywords
- Aperture Efficiency, Artificial Magnetic Conductor, Axial Ratio, High Gain, Phase Difference, Resonance Cavity Antenna, Single-layer, circular polarizations(CPs), design methodology, dual circularly polarized, partially reflecting surface(PRS)