2026-10-12T04:54:59Z https://www.scidb.cn/oai

10.57760/sciencedb.space.02929 2025-07-21T09:48:29Z

2025-07-21 Design of a Wideband Spaceborne Stacked GNSS Antenna Featuring Chamfered-Serrated Conductive Walls and a Cross-Shaped Shorting Stub doi:10.57760/sciencedb.space.02929 en This paper proposes an improved three-layer patch stacked antenna design to address the efficiency and gain sag issues of traditional stacked GNSS antennas in a wide frequency band. The design utilizes conductive walls with chamfered and serrated structures and cross shaped short-circuit branches, effectively suppressing the in band sag phenomenon. The simulation results show that the antenna operates within the full GNSS frequency range of 1.16-1.61GHz, S11<-13dB， The in band gain is flat, with peak gain>5.5dBiC and axial ratio<1dB. This design significantly improves broadband performance and adaptability to onboard environments, providing a practical solution for onboard navigation receivers.  GNSS天线; 轴比; 宽带 zhang hao Du Feifei PUBLIC https://creativecommons.org/licenses/by-nc/4.0/ dataset Science Data Bank