Abstract
An X-band reflectarray antenna using 16 × 12 double square ring elements for satellite communications is proposed in this paper. The feed is a 4 × 3 elements microstrip patch array designed to create edge taper of approximately − 10 dB. A prototype with right-hand circular polarization (RHCP) is manufactured and tested, and the good agreements between simulations and measurements are demonstrated. The good performance is obtained with the aperture efficiency of 40.7% and the 3-dB gain bandwidth of about 10% which is beneficial to nanosatellites.
Highlights
In the last decade, nanosatellites for low-Earth orbit missions are becoming more and more popular due to their relatively low cost, relatively fast development, and satellite network application capabilities
This paper presents the recent work on a reflectarray antenna using 16 × 12 double square ring elements for a nanosatellite bus
The broadband microstrip patch array feed is designed to mitigate feed deployment complexity and the whole antenna is designed to fit into commercially available nanosatellite buses
Summary
Bing Ma1,2, Fan Lu1,2*, Guoping Zhi[1,2], Xin Xue[1,2], Xiangni Zhao[1,2], Chao Ma1,2, Yong Fan1,2 & Mei Yang[1]. In order to analyze how the reflection phase-shift varies with the size of the double square r ings[16], we suppose that the element is located in an infinite array Though this is an approximation, it has a tiny effect on the simulation result. The measured antenna gain gives an aperture efficiency of 40.7% which is mainly caused by using the microstrip patch array feed with a low efficiency, and the 3-dB gain bandwidth is about 10% which is mainly caused by using foam layer and double square metal rings. It can be widely used in nanosatellite bus for high-speed data transmission and satellite communication
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