Array Antenna Design Using Spoof Surface Plasmon Polaritons for Phase Shifting Network

• Published in: 2022 IEEE 10th Asia-Pacific Conference on Antennas and Propagation (APCAP) pp. 1 - 2
• Main Authors: Gao, Shizhao, Li, Weihan, Wei, Jiaxuan, Tang, Wenxuan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 04.11.2022
• Subjects: antenna; array; low side lobe; phase shifter; spoof surface plasmon polariton
• DOI: 10.1109/APCAP56600.2022.10069980

The array antenna using spoof surface plasmon polaritons (SSPPs) for the phase shifting network is proposed. The SSPPs offer an efficient way to control the phase difference between patches in the array, and the technique of quarter-wavelength matching helps to adjust the amplitude distribution in the array. Two array antennas, one with near-uniform phase and amplitude distributions and the other with near-uniform phase and tapered amplitude distributions, are designed for demonstration. For the first array antenna, the gain is 11.4 dB, the side lobe level (SLL) is -8.5 dB and the half-power beam width (HPBW) is 8.4°. And for the second one, the gain is 11.8 dB, the SLL is -18.37 dB and the HPBW is 10.1°, showing good performance of low sidelobe. The reflection coefficients of both antennas are below -10 dB at 10 GHz. The simulation results prove that the SSPPs have good potentials in compact phase-shifting networks.