Mutual Coupling Reduction between Finite Spaced Planar Antenna Elements Using Modified Ground Structure

Electronics

卷:10

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