Enhancement of bandwidth through I-shaped Defected Ground Structure

Ripin, N.; Yusoff, Sarah; Sulaiman, Alawi; Rashid, Nur Emileen Abdul; Hussin, Mohamad

doi:10.1109/rfm.2013.6757310

Cited by 14 publications

(6 citation statements)

References 14 publications

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“…In order to obtain dual resonances effect in the microstrip transmission line device, it is of strategic importance to design a structure with the combination of the split ring resonator (SRR) [8,9] and DGS structure [10,11]. In this work, a microstrip transmission line device is designed with the combination of the SRR and DGS structure.…”

Section: Methodsmentioning

confidence: 99%

Influence of Salt Spray Environment on the Transmission Characteristics of the Dual Left-Handed Material

Huang¹,

Jin²,

Luo³

2016

PIER Letters

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Abstract-In order to collect information for the manufacture and application of a designed dual lefthanded material (LHM) structure, the influence of salt spray test on the two conductive composite coatings consisting of silver and copper is contrastively investigated. It is found that the salt spray corrosion test can influence the microstructure of the coated copper and silver layers, leading to the decrease of electrical conductivity of the coated copper and silver layers. As results, the transmission performance of the dual-LHM structure is reduced, while the bandwidth of the dual-LHM structure is broadened. Moreover, at the same conditions, the salt spray corrosion test has less influence on the transmission characteristics of the silver-plated dual-LHM structure than those of copper-plated dual-LHM structure.

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Section: Methodsmentioning

confidence: 99%

Influence of Salt Spray Environment on the Transmission Characteristics of the Dual Left-Handed Material

Huang¹,

Jin²,

Luo³

2016

PIER Letters

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“…The outcomes of this planar array microstrip antenna by the use of DGS and without DGS have been taken into consideration. In [8], MPA with I-shaped DGS is introduced for improved bandwidth of 118 % compared to conventional design.…”

Section: Introductionmentioning

confidence: 99%

Microstrip Antenna with Defected Ground Structure (DGS) for Multiband Operation

Sharma

Vishwakarma

2016

Proceedings of the International Conference on Recent Cognizance in Wireless Communication &Amp; Image Processing

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In this paper, a microstrip feeding rectangular MPA using DGS structure into ground plane is presented. In the absence of a slot, a conventional rectangular MPA is also considered for confirming the validity of designed antenna. This conventional antenna design was found to resonate on 7.0611 GHz frequency at −23.70 dB return loss. When introducing the combination of two L-shaped DGS structures into the ground plane, then the frequency shift from 7.0611 GHz to 3.2012 GHz is observed. The main involvement of this antenna design is the multiband responses. Further, the end result confirms that the designed DGS antenna has return loss at −14.0170 dB on 3.2012 GHz, −16.5623 dB on 4.4505 GHz, −17.8874 dB on 5.1952 GHz, and−17.5474 dB on 8.9349 GHz. Keywords Multiband antenna Á MPA (microstrip patch antenna) Á DGS (defected ground structure)

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“…The applications of defected ground structure (DGS) in microstrip technology are very recent area of research and are reported in . An improved one‐dimensional periodic DGS for microstrip line is presented in which has nonuniform square—patterned defects and a compensated microstrip line for filtering action.…”

Section: Introductionmentioning

confidence: 99%

“…Around 5% impedance bandwidth along with 7 dBi of gain is apparent from the article. An RMA with I‐shaped DGS metamaterial antenna , exhibits an enhancement of 118% of absolute bandwidth compared to the conventional design at 2.45 GHz. The structure reported in shows around 2% input impedance bandwidth along with 1 dB improvement in gain.…”

Section: Introductionmentioning

confidence: 99%

“…An RMA with I‐shaped DGS metamaterial antenna , exhibits an enhancement of 118% of absolute bandwidth compared to the conventional design at 2.45 GHz. The structure reported in shows around 2% input impedance bandwidth along with 1 dB improvement in gain. Around 5.5 dBi of peak CP gain along with 21% of patch area reduction is apparent from the report.…”

Section: Introductionmentioning

confidence: 99%

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Substrate fields modulation with defected ground structure: A key to realize high gain, wideband microstrip antenna with improved polarization purity in principal and diagonal planes

Chakraborty¹,

Chattopadhyay²

2015

Int J RF and Microwave Comp Aid Eng

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Rectangular microstrip patch antenna with circular headed dumbbell shaped defect in ground plane has been studied experimentally for concurrent improvement in its gain, bandwidth and polarization purity in principal and 458 diagonal planes. Around 9-9.5 dBi peak co polarized (CP) gain, 22% impedance bandwidth along with minimum 19-20 dB of CP-cross polarized (XP) isolation in both principal and 458 diagonal plane are achieved with the present structure. These observed improvements in results from present antenna are justified with physical insight. The present structure is simple and easy to manufacture. The geometry of the defect in ground plane has been shaped judiciously to modulate the fields beneath the patch efficiently for simultaneous improvement of the three parameters. Very close mutual agreement between simulation and measure results are revealed. The present investigation provides an insightful, visualization-based understanding of concurrent improvement of all these parameters. V C 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:174-181, 2016.

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Enhancement of bandwidth through I-shaped Defected Ground Structure

Cited by 14 publications

References 14 publications

Influence of Salt Spray Environment on the Transmission Characteristics of the Dual Left-Handed Material

Influence of Salt Spray Environment on the Transmission Characteristics of the Dual Left-Handed Material

Microstrip Antenna with Defected Ground Structure (DGS) for Multiband Operation

Substrate fields modulation with defected ground structure: A key to realize high gain, wideband microstrip antenna with improved polarization purity in principal and diagonal planes

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