TY - GEN
T1 - Printed PRS-based circularly polarized resonant cavity antenna for mmWave communications
AU - Ali, Md Yeakub
AU - Singh, Khushboo
AU - Taheri, Sina Hasibi
AU - Mukhopadhyay, Subhas
PY - 2025
Y1 - 2025
N2 - This paper presents a high-gain, planar, and compact circularly polarized resonant cavity antenna (RCA) with a low profile, designed for mmWave communication systems. The non-uniform electric-field phase distribution across the aperture of the conventional RCAs leads to lower far-field performance. To address this limitation, an array of circular patches is printed on the underside of the partially reflecting surface (PRS) to improve phase uniformity and enhance far-field directive radiation of a classical RCA. This phase correction mechanism results in significant improvements in both directivity and gain. A hexagonal-shaped patch is used as the primary radiating element to excite the cavity and generate circularly polarized waves. A notable performance improvement is achieved in the proposed RCA with a peak gain of 17.91 dBi, peak aperture efficiency of 35.13% at 28 GHz, and a significantly lower side-lobe level in the operating bandwidth.
AB - This paper presents a high-gain, planar, and compact circularly polarized resonant cavity antenna (RCA) with a low profile, designed for mmWave communication systems. The non-uniform electric-field phase distribution across the aperture of the conventional RCAs leads to lower far-field performance. To address this limitation, an array of circular patches is printed on the underside of the partially reflecting surface (PRS) to improve phase uniformity and enhance far-field directive radiation of a classical RCA. This phase correction mechanism results in significant improvements in both directivity and gain. A hexagonal-shaped patch is used as the primary radiating element to excite the cavity and generate circularly polarized waves. A notable performance improvement is achieved in the proposed RCA with a peak gain of 17.91 dBi, peak aperture efficiency of 35.13% at 28 GHz, and a significantly lower side-lobe level in the operating bandwidth.
KW - Aperture phase distribution
KW - circular polarization
KW - compact RCA
KW - electromagnetic bandgap (EBG) resonator antennas
KW - partially reflecting surface
KW - printed patch
KW - resonant cavity antenna
UR - https://www.scopus.com/pages/publications/105020818667
U2 - 10.1109/ELMAR66948.2025.11194022
DO - 10.1109/ELMAR66948.2025.11194022
M3 - Conference proceeding contribution
AN - SCOPUS:105020818667
SN - 9798331596804
SN - 9798331596781
SP - 165
EP - 168
BT - Proceedings of ELMAR-2025
A2 - Muštra, Mario
A2 - Vuković, Josip
A2 - Božek, Jelena
PB - Croatian Society Electronics in Marine - ELMAR
CY - Zadar, Croatia
T2 - 67th International Symposium ELMAR, ELMAR 2025
Y2 - 15 September 2025 through 17 September 2025
ER -