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.

scholarly journals A Miniature Microstrip Antenna Array using Circular Shaped Dumbbell for ISM Band Applications

2018 ◽  
Vol 8 (5) ◽  
pp. 3793
Author(s):  
Ahmed Ghaloua ◽  
Jamal Zbitou ◽  
Larbi El Abdellaoui ◽  
Mohamed Latrach ◽  
Ahmed Errkik ◽  
...  
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Microstrip Patch Antenna ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Microstrip Antenna Array ◽  
Two Stages

The aim of this work is the achievement, and the validation of a small microstrip patch antenna array using a circular shaped dumbbell defected ground structure. This work has been dividing into two stages: The first step is to miniaturize a microstrip patch antenna resonating at 5.8GHz, which operate in the Industrial Scientific Medical band (ISM) and the second is to use a circular defected ground structure to shift the resonance frequency of the antenna array from 5.8GHz to 2.45GHz. At last, a miniaturization up to 74.47%, relative to the original microstrip antenna array has accomplished. The antenna structure has designed, optimized and miniaturized using CST MW Studio. The obtained results have compared with Ansoft’s HFSS electromagnetic solver. The antenna array has fabricated on FR-4 substrate, and its reflection coefficient is measured.

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 Mutual Coupling Reduction between Patch Antennas Using Meander Line

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Qian Li ◽  
Chong Ding ◽  
Ruichao Yang ◽  
Mingtao Tan ◽  
Gangxiong Wu ◽  
...  
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Patch Antennas ◽  
Radiation Patterns ◽  
Simple Method ◽  
Microstrip Patch ◽  
Microstrip Antenna Array ◽  
Meander Line

Meander lines (MLs) in two configurations are presented to reduce the mutual coupling (MC) between two microstrip patch antenna elements. Inserting a slot in the ground plane between the antenna elements is a simple method to reduce the MC, while adding the MLs in the slot of the ground can further reduce the MC. In the first configuration, one ML is inserted in the slot of the ground and a maximum MC reduction of 39 dB throughout the −10 dB bandwidth is achieved. What’s more, the radiation patterns are not changed compared with the dual-element microstrip antenna array with a slotted ground. For the second configuration, two MLs are added in the slot of the ground. It is found that a maximum isolation of 53 dB can be obtained. However, the radiation patterns are slightly changed compared with the dual-element microstrip antenna array with a slot in the ground. Meanwhile, the measured peak gain and efficiency of the dual-element microstrip antenna array in the two configurations are given. Along with this paper, several prototypes have been fabricated and measured. The simulated results are in good accordance with the measurements, which are presented to verify that MC reduction can be achieved between microstrip antenna elements by adding the MLs in the slotted ground.

Sign in / Sign up

Export Citation Format

Share Document