scholarly journals Harmonic Control by Defected Ground Structure on Microstrip Antenna Array

2015 ◽  
Vol 8 (35) ◽  
Author(s):  
R. A. Pandhare ◽  
P. L. Zade ◽  
M. P. Abegaonkar
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Harmonic Control ◽  
Microstrip Antenna Array

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.

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