Electronics | 卷:10 |
Mutual Coupling Reduction between Finite Spaced Planar Antenna Elements Using Modified Ground Structure | |
M.Ali Babar Abbasi1  Symeon Nikolaou2  Hamza Nawaz3  MuhammadShahzad Sadiq4  Cunjun Ruan4  | |
[1] Centre of Wireless Innovation (CWI), Queens University Belfast, Belfast BT7 1NN, UK; | |
[2] Electrical Engineering Department, Frederick University, Nicosia 1036, Cyprus; | |
[3] School of Electrical, Information and Electronics Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; | |
[4] School of Electronic and Information Engineering, Beihang University, Beijing 100191, China; | |
关键词: mutual coupling reduction; altimeter; antenna array; modified ground structure; | |
DOI : 10.3390/electronics10010019 | |
来源: DOAJ |
【 摘 要 】
In this paper, a modified ground structure capable of reducing mutual coupling to provide isolation between adjacent antenna elements is presented. The proposed modified ground structure is a combination of a strategically located ground slot, asymmetric partial ground and a substrate-integrated pin wall. The use of the modified ground structure causes a more than 28 dB (measured value) mutual coupling reduction. The modified ground structure has been optimized and validated with a finite spaced planar 2 × 1 antenna array operating at 4.16 GHz, intended for unmanned aerial vehicle radar altimeter applications. The patch antennas built with the MGS exhibit high gain (greater than 6 dBi throughout the operational band), along with inter-element coupling as low as −65 dB. Mutual coupling reduction at lower contours is beneficial for altimeter applications.
【 授权许可】
Unknown