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

Electronics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 19
Author(s):  
Muhammad Shahzad Sadiq ◽  
Cunjun Ruan ◽  
Hamza Nawaz ◽  
M. Ali Babar Abbasi ◽  
Symeon Nikolaou
Keyword(s):  
Antenna Array ◽  
Unmanned Aerial Vehicle ◽  
Mutual Coupling ◽  
High Gain ◽  
Planar Antenna ◽  
Patch Antennas ◽  
Radar Altimeter ◽  
Ground Structure ◽  
Aerial Vehicle ◽  
Mutual Coupling Reduction

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.

scholarly journals Improving the Performances of Microstrip Antenna Array using Defected Ground Structure

2020 ◽  
Vol 9 (3) ◽  
pp. 1081-1086
Keyword(s):  
Antenna Array ◽  
Power Distribution ◽  
Mutual Coupling ◽  
Impedance Matching ◽  
Side Lobe ◽  
Power Divider ◽  
Side Lobe Level ◽  
Patch Antennas ◽  
Defected Ground Structure ◽  
Ground Structure

In this paper, a two elements antenna array with defective ground structure (DGS) has been designed to achieve significant gain, polarization purity and reduced mutual coupling. A 3 port Wilkinson power divider has been designed at 4.5 GHz frequency to obtain equal power distribution at the output ports. Two Rectangular microstrip patch antennas with DGS at the corners yield improved gain, impedance matching and polarization purity in both E and H plane. The reduction of mutual coupling and side lobe level (SLL) have been achieved by placing the dumbbell shaped DGS bellow the feed line of the power divider. The radiation performances obtained using the fabricated prototype agrees well with that of the simulated one. This array has been designed for C-band application.

scholarly journals Array Mutual Coupling Reduction Using L-Loading E-Shaped Electromagnetic Band Gap Structures

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Tao Jiang ◽  
Tianqi Jiao ◽  
Yingsong Li
Keyword(s):  
Band Gap ◽  
Antenna Array ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Patch Antennas ◽  
Electromagnetic Band Gap ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Microstrip Antenna Array ◽  
Mutual Coupling Reduction

A mutual coupling reduction method between microstrip antenna array elements is proposed by using periodic L-loading E-shaped electromagnetic band gap structures. Two identical microstrip patch antennas at 2.55 GHz are settled together and used to analyze the performance of the designed two-element antenna array. The two antenna elements are settled with a distance of about0.26λ. To reduce the mutual coupling, the L-loading E-shaped electromagnetic band gap structures are used between these antenna elements. The simulated and measured results show that the isolation of the antenna array reaches 38 dB, which has a mutual coupling reduction of 26 dB in comparison with the antenna array without the decoupling structures.

Mutual Coupling Reduction by Novel Fractal Defected Ground Structure Bandgap Filter

2016 ◽  
Vol 64 (10) ◽  
pp. 4328-4335 ◽  
Author(s):  
Kun Wei ◽  
Jian-Ying Li ◽  
Ling Wang ◽  
Zi-Jian Xing ◽  
Rui Xu
Keyword(s):  
Mutual Coupling ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Mutual Coupling Reduction

scholarly journals NOVEL WEARABLE EAGLE SHAPE MICROSTRIP ANTENNA ARRAY WITH MUTUAL COUPLING REDUCTION

2015 ◽  
Vol 62 ◽  
pp. 87-103 ◽  
Author(s):  
Mohamed Ismail Ahmed ◽  
Esmat Abdel-Fattah Abdallah ◽  
Hadia M. El-Hennawy
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Microstrip Antenna Array ◽  
Mutual Coupling Reduction

High Gain Planar Antenna Array for Ka Band SAR Applications

2018 ◽  
Author(s):  
Sheng Ye ◽  
Junyi Hu ◽  
Liang Li ◽  
Yanbing Ma ◽  
Kun Qin
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Planar Antenna ◽  
Ka Band ◽  
Planar Antenna Array
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