Dual-Band Proximity Coupled Feed Microstrip Patch Antenna with ‘T’ Slot on the Radiating Patch and ‘Dumbbell’ Shaped Defected Ground Structure

Fitsum, Dawit; Mali, Dilip; Ismail, Mohammed

doi:10.11591/ijeecs.v3.i2.pp435-440

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…The size of the dumbbell shaped DGS located under the patch also able to affect the return loss and the antenna gain [22]. Therefore, the dimension of dumbbell shaped DGS located with dimension w = 14mm, g = 2mm and a-arm = b-arm = 5mm.…”

Section: Fig7 -Comparison Of the Location Of Dumbbell Shaped Dgs Locmentioning

confidence: 99%

Design of Dumbbell Shaped DGS-Notch Patch Antenna for Microwave Imaging System

Chin

Mat

Truna

et al. 2020

IJIE

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In this paper, square Microstrip Patch Antenna with notch is designed with dumbbell shaped DGS for microwave imaging system. The antenna is designed on dielectric substrate, FR-4 with relative permittivity, ℇ r = 4.7 and thickness, 1.6mm. The dumbbell shaped DGS act as the resonant structures and is placed as the ground layer of the antenna. Different location and size of dumbbell shaped DGS are simulated and analyzed. The result of return loss, radiation pattern and antenna gain are simulated using Electromagnetic Simulation Tools, fabricated and measured using Wave and Antenna Training System (WATS 2002). The design shows better performance with return loss of-38.99 dB and higher antenna gain of 6.20 dB compare to the conventional design, with return loss of-30.21 dB and antenna gain of 5.48 dB respectively.

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Section: Fig7 -Comparison Of the Location Of Dumbbell Shaped Dgs Locmentioning

confidence: 99%

Design of Dumbbell Shaped DGS-Notch Patch Antenna for Microwave Imaging System

Chin

Mat

Truna

et al. 2020

IJIE

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“…The antenna has good bandwidth improvement, again with poor gain and directivity. In [5], bandwidth enhancement technique by using T-shaped slot operating at 2.4Ghz using proximity coupled feeding is presented. The proposed antenna operates at 2.4Ghz and 4.5Ghz supporting C-band and satellite applications.…”

Section: Introductionmentioning

confidence: 99%

A novel bandwidth enhanced triple band antenna for satellite and airborne applications

Mohammed¹

2020

IJEECS

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<p align="justify"><span>This paper presents a novel bandwidth enhancement technique in which a passive stack of third order Sierpinski carpet fractal antenna is parasitically coupled to the driven element that is also a Sierpinski fractal of third order. Edge feeding technique is used. The passive stack placed symmetric to the driven elements provide the combined benefits of horizontal and vertical parasitic coupling, with added advantage of miniaturization contributed by fractal technology. Result of the study indicate that the antenna array provide triple band with a large inter-band separation that mitigates the effects of inter-band interference. The first band at 6.1Ghz with bandwidth of 250Mhz supports mobile wireless and fixed satellite service, the second band at 7.1Ghz with 350Mhz bandwidth supports mobile wireless, fixed wireless and fixed satellite service. The third band is at 11.6Ghz with bandwidth of 1.4Ghz and supports fixed wireless and fixed satellite services. The number of elements in the parasitic stack influence array performance in terms of bandwidth, gain and directivity. The bandwidth in the third band increased from 1.5Ghz for two-element stack to 1.7Ghz for three-element. This has an advantage over conventional antenna array, that use more active antenna elements that have the limitations of more power consumption and large space occupancy. </span></p>

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“…They have been employed as radiating or receiving elements in a wide range of microwave systems, such as radars, navigation, mobile communications [6] and wireless biotelemetry [7]. In microstrip antenna design, it is important to ascertain the resonant frequency of the antenna accurately because microstrip antennas have narrow bandwidths [8][9][10][11][12] and can only operate effectively in the vicinity of the resonant frequency. As such, a theory to help ascertain the resonant frequency is helpful in antenna designs.…”

Section: Introductionmentioning

confidence: 99%

Study of two-layered circular patch using moment method and genetic algorithms

Mahamdi¹,

Benkouda²,

Amir³

et al. 2019

IJECE

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<table width="356" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td valign="top" width="387"><table width="593" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td valign="top" width="387"><p>In this paper, new expressions for the effective radius and fringing capacitance have been derived to predict accurately the resonant frequency of the two-layered circular microstrip patch antenna. These expressions are obtained based on genetic algorithm and the data base is generated using moment method (MOM). The proposed model is very simple, fast, and valid for an entire range of permittivities and thicknesses of two-layered substrate. The present model has been validated by comparing our numerical results obtained for the resonant frequencies with measurements. Finaly, the effect of the two-layered substrate on the resonant charateristics of the circular microstrip patch antenna has been presented.</p></td></tr></tbody></table></td></tr></tbody></table>

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Dual-Band Proximity Coupled Feed Microstrip Patch Antenna with ‘T’ Slot on the Radiating Patch and ‘Dumbbell’ Shaped Defected Ground Structure

Abstract: This paper presents Dual-Band proximity

Cited by 7 publications

References 1 publication

Design of Dumbbell Shaped DGS-Notch Patch Antenna for Microwave Imaging System

Design of Dumbbell Shaped DGS-Notch Patch Antenna for Microwave Imaging System

A novel bandwidth enhanced triple band antenna for satellite and airborne applications

Study of two-layered circular patch using moment method and genetic algorithms

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