Low mutual coupling 2 × 2 microstrip patch array antenna by using novel shapes of defect ground structure

2010 ◽  
Vol 52 (5) ◽  
pp. 1208-1215 ◽  
Author(s):  
Dalia N. Elsheakh ◽  
Hala A. Elsadek ◽  
Esmat A. Abdallah ◽  
Magdy F. Iskander ◽  
Hadia Elhenawy
Keyword(s):  
Mutual Coupling ◽  
Array Antenna ◽  
Ground Structure ◽  
Microstrip Patch ◽  
Defect Ground Structure

scholarly journals Design of Wearable MIMO Antenna Using STUB Matching

2020 ◽  
pp. 373-377
Keyword(s):  
Patch Antenna ◽  
Mutual Coupling ◽  
Microstrip Patch Antenna ◽  
Wearable Electronics ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Mimo Antenna ◽  
Microstrip Patch ◽  
Smart Textile ◽  
Matching Technique

In this work, a Multi-band wearable microstrip patch antenna designed integrated with the defected ground structure(DGS)[1], and the substrate being used is Denim which is flexible[4] and can be easily fabricated on common wearable materials. This Radiating patch antenna is designed with the optimized dimensions and suits appropriately for the communication in wearable electronics as well as in smart textile application. The designed antenna operates at resonating frequencies of 4.885 GHz and 5.57 GHz. Further the design is modified to a 2-element MIMO [2] antenna using T-shaped Stub matching technique to reduce mutual coupling and resonate at frequency of 8GHz by designing and simulating in CST Microwave Studio 2019 software and the enhanced results like Directivity, Gain, E-field are obtained.

scholarly journals Isolation Improvement of a Microstrip Patch Array Antenna for WCDMA Indoor Repeater Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Hongmin Lee ◽  
Jinwon Park
Keyword(s):  
Code Division Multiple Access ◽  
Mutual Coupling ◽  
Array Antenna ◽  
Coupled Line ◽  
Microstrip Patch ◽  
Soft Surface ◽  
Unit Cells ◽  
Feed Network ◽  
Backward Radiation ◽  
Code Division Multiple

This paper presents the isolation improvement techniques of a microstrip patch array antenna for the indoor wideband code division multiple access (WCDMA) repeater applications. One approach is to construct the single-feed switchable feed network structure with an MS/NRI coupled-line coupler in order to reduce the mutual coupling level between antennas. Another approach is to insert the soft surface unit cells near the edges of the microstrip patch elements in order to reduce backward radiation waves. In order to further improve the isolation level, the server antenna and donor antenna are installedinorthogonal direction. The fabricated antenna exhibits a gain over 7 dBi and higher isolation level between server and donor antennas below −70 dB at WCDMA band.

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>

Using polygonal defect in ground structure to reduce mutual coupling in microstrip array antenna

2013 ◽  
Vol 28 (2) ◽  
pp. 194-201 ◽  
Author(s):  
Ali Farahbakhsh ◽  
Mohammad Mosalanejad ◽  
GholamReza Moradi ◽  
Shahram Mohanna
Keyword(s):  
Mutual Coupling ◽  
Array Antenna ◽  
Ground Structure ◽  
Microstrip Array ◽  
Microstrip Array Antenna
Sign in / Sign up

Export Citation Format

Share Document