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International Journal of Latest Research in Science and Technology

DOI:10.29111/ijlrst   ISRA Impact Factor:3.35,  Peer-reviewed, Open-access Journal

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SIZE MINIATURIZATION AND BANDWIDTH ENHANCEMENT IN MICROSTRIP ANTENNA ON A COUPLE CIRCULAR RINGS DGS

Research Paper Open Access

International Journal of Latest Research in Science and Technology Vol.4 Issue 4, pp 27-30,Year 2015

SIZE MINIATURIZATION AND BANDWIDTH ENHANCEMENT IN MICROSTRIP ANTENNA ON A COUPLE CIRCULAR RINGS DGS

Nabilah Ripin, Nurul Fadzlin Ghazali, Ahmad Asari Sulaiman, Nur Emileen Abd Rashid, Mohamad Fahmi Hussin

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Received : 05 August 2015; Accepted : 17 August 2015 ; Published : 31 August 2015

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Article No. 10536
Abstract

Design and fabrication of small microstrip patch antennas for radar application are presented. The new proposed antenna is composed of a rectangular radiating patch on a couple of circular rings defected ground structure (DGS). The circular rings defection on the ground plane offer metamaterial characteristics which were identified using Nicolson-Ross-Weir (NRW) method. An analysis on the radius of the circular rings DGS of the new antenna is provided to achieve 4.75 GHz operating frequency specific for radar application. The rectangular patch antenna without DGS was designed as a reference antenna. The new proposed antenna size is 42% smaller (17.50 x 20.00 x 0.75 mm3) compared to the reference antenna with an acceptable antenna gain. The simulation and measurement results agree well with each other. Both results show that the proposed antenna provides a better impedance matching with a greater improvement in terms of bandwidth with 208 % increment.

Key Words   
Miniaturization, bandwidth enhancement, patch antenna, defected ground structure,

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References
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To cite this article

Nabilah Ripin, Nurul Fadzlin Ghazali, Ahmad Asari Sulaiman, Nur Emileen Abd Rashid, Mohamad Fahmi Hussin , " Size Miniaturization And Bandwidth Enhancement In Microstrip Antenna On A Couple Circular Rings Dgs ", International Journal of Latest Research in Science and Technology . Vol. 4, Issue 4, pp 27-30 , 2015

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