scholarly journals Dual-Frequency Two-Element Antenna Array with Suppressed Mutual Coupling

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Yantao Yu ◽  
Lijun Yi ◽  
Xiaoya Liu ◽  
Zhaokai Gu ◽  
Nadia Media Rizka
Keyword(s):  
Resonant Frequency ◽  
Antenna Array ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Dual Frequency ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Split Ring ◽  
Microstrip Antenna Array

An efficient technique utilizing the defected ground structure (DGS) to suppress the mutual coupling effect of a dual-frequency microstrip antenna array is studied. The proposed dual-frequency DGS beneath two patches includes two circular split ring slots, each of which corresponds to one resonant frequency of the patches. The characteristic of the compact DGS is theoretically and experimentally investigated. The prototypes of the patches arrays with and without the proposed DGS are fabricated. Both the simulated and measured results show that the mutual coupling between array elements has been obviously reduced at the two operating frequency bands with the implementation of the proposed DGS structure.

scholarly journals Defected Ground Structure Based Two Element Microstrip Antenna Array with Reduced Mutual Coupling

2019 ◽  
Vol 8 (6S) ◽  
pp. 484-489 ◽  
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Simulation Software ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Radiation Properties ◽  
Microstrip Antenna Array

In this paper two element microstrip antenna array with dumbbell shaped defected ground structure (DGS) is on reduction of mutual coupling is presented. The proposed of DGS antenna is simulated by an soft HFSS simulation software. this work is obtain a miniaturized microstrip patch antenna array using DGS for S Band is 2.2GHz.Initally the patch antenna array is designed at C band resonates at 5.2 GHz and the proposed of DGS is integrated in the ground plane of patch antenna for size reduction and this miniaturization is at cost of gain antenna and in order to improve the gain of miniaturized radiator. Patch radiator is further modified to radiation properties, so finally the resonance frequency of an initial microstrip antenna array shifts to 3.75 GHz to 7.15 GHz with the gain of 2.92 dB and its miniaturization performance is up to 63% and its conventional microstrip is successfully accomplished. The prototype antenna is fabricated with the FR-4 substrate and this technique is validate experimentally and measured results with good agreement as stimulated results.

Mutual Coupling Optimization of Compact Microstrip Array Antenna

2016 ◽  
Vol 4 (3) ◽  
pp. 538
Author(s):  
Lin Teng ◽  
Jingrui Pei ◽  
Shoulin Yin
Keyword(s):  
Resonant Frequency ◽  
Antenna Array ◽  
Free Space ◽  
Mutual Coupling ◽  
Array Antenna ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Before And After ◽  
Microstrip Array ◽  
Microstrip Array Antenna

<p><em>In this paper, we perfect the mutual coupling of compact microstrip array antenna by designing a new defected ground structure. When the resonant frequency is 2.45GHz, array element spacing is 0.1 times of free space wavelength, we introduce new defected ground structure into antenna array. Then we use HFSS to make simulation and compare the changing of antenna's parameters before and after adding defected ground structure. The results demonstrate that the parameters representing mutual coupling in new model can reduce by 30dB, which effectively perfects the mutual coupling of compact microstrip array antenna.</em><em></em></p>

Sign in / Sign up

Export Citation Format

Share Document