Defected Ground Structure Integrated Microstrip Array Antenna for Improved Radiation Properties

2017 ◽  
Vol 16 ◽  
pp. 310-312 ◽  
Author(s):  
Chandrakanta Kumar ◽  
Mahammad Intiyas Pasha ◽  
Debatosh Guha
Keyword(s):  
Array Antenna ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Radiation Properties ◽  
Microstrip Array ◽  
Microstrip Array Antenna

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>

scholarly journals Left-Handed Metamaterial Structure for Side Lobe Suppression of Microstrip Array Antenna

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Fitri Yuli Zulkifli
Keyword(s):  
High Performance ◽  
Side Lobe ◽  
Array Antenna ◽  
Side Lobe Level ◽  
Measurement Result ◽  
Left Handed ◽  
Radiation Properties ◽  
Microstrip Array ◽  
Side Lobe Suppression ◽  
Microstrip Array Antenna

<p class="TTPAbstract">In this paper, a Left-handed Metamaterial (LHM) structure is designed for side lobe suppression of a microstrip array antenna at frequency 2.8-3.1 GHz. The LHM structure is placed at the top of the microstrip array antenna with a space or gap between them. Side lobe suppression is very important for Radar system which needs antenna with high performance of its radiation properties. The linier array microstrip antenna consists of 4x1 elements. The simulation result using CST microwave studio shows that the Side Lobe Level (SLL) has been suppressed from -8.93 dB to -15.86 dB at phi = 0 while the measurement result shows suppression from -6.6 dB to -10.75 dB. Both simulation and measurement result shows a side lobe suppression using LHM structure.</p>

scholarly journals Left-Handed Metamaterial Structure for Side Lobe Suppression of Microstrip Array Antenna

2016 ◽  
Vol 1 ◽  
Author(s):  
Fitri Yuli Zulkifli
Keyword(s):  
High Performance ◽  
Side Lobe ◽  
Array Antenna ◽  
Side Lobe Level ◽  
Measurement Result ◽  
Left Handed ◽  
Radiation Properties ◽  
Microstrip Array ◽  
Side Lobe Suppression ◽  
Microstrip Array Antenna

<p class="TTPAbstract">In this paper, a Left-handed Metamaterial (LHM) structure is designed for side lobe suppression of a microstrip array antenna at frequency 2.8-3.1 GHz. The LHM structure is placed at the top of the microstrip array antenna with a space or gap between them. Side lobe suppression is very important for Radar system which needs antenna with high performance of its radiation properties. The linier array microstrip antenna consists of 4x1 elements. The simulation result using CST microwave studio shows that the Side Lobe Level (SLL) has been suppressed from -8.93 dB to -15.86 dB at phi = 0 while the measurement result shows suppression from -6.6 dB to -10.75 dB. Both simulation and measurement result shows a side lobe suppression using LHM structure.</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

Compact circularly-polarized microstrip array antenna

2010 ◽  
Author(s):  
Ahmed H. Abdelrahman ◽  
Fatma Elhefnawi ◽  
Atef Z. Elsherbeni ◽  
Moataza Hendi ◽  
Salwa Elramly
Keyword(s):  
Array Antenna ◽  
Circularly Polarized ◽  
Microstrip Array ◽  
Microstrip Array Antenna

Design and Analysis of a RFID Reader Microstrip Array antenna for IoT Applications in Smart Cities

2022 ◽  
Vol 17 (5) ◽  
pp. 0-0
Keyword(s):  
Smart Cities ◽  
Array Antenna ◽  
The Internet ◽  
Substrate Thickness ◽  
Iot Applications ◽  
Rfid Reader ◽  
Array Antennas ◽  
Microstrip Array ◽  
The Internet Of Things ◽  
Microstrip Array Antenna

This paper presents the design of 2*1 and 4*1 RFID reader microstrip array antenna at 2.4GHz for the Internet of things (IoT) networks which are Zigbee, Bluetooth and WIFI. The proposed antenna is composed of identical circular shapes radiating patches printed in FR4 substrate. The dielectric constant εr and substrate thickness h are 4.4 and 1.6mm, respectively. The 2*1 and 4*1 array antennas present a gain improvement of 27.3% and 61.9%, respectively. The single,2*1 and 4*1 array antennas were performed with CADFEKO.

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