Compact Hybrid-Integrated Circular Polarized Double-Ring Antenna for Satellite Application
In this paper, a compact hybrid-integrated circular polarized double-ring antenna is proposed based on the Yagi-Uda concept. With two cross-slotted patch hybrid coupler integrated inside the square ring, the proposed antenna can effectively radiate a circular polarized wave with lightweight and more compact size. With six other rectangular rings aligned at the right positions to act as wave directors, a gain up to 10 dBi can be achieved. The proposed antenna is thus especially suitable for satellite communications where weight and size are major constraints.
KeywordsCompact microstrip Yagi-Uda antenna Satellite-borne antenna Double-ring antenna
The projects are supported by the National Natural Science Foundation of China (Grant No.61671304) and Shanghai Sailing Program (16YF1411000).