Bandwidth enhancement defected ground structure microstrip patch antenna for K and Ka band applications

Rameswarudu, E Sarva; Sridevi, P. V.

doi:10.1109/aeeicb.2016.7538318

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Several methods targeting the patch antenna bandwidth enhancement have been reported previously [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Various techniques have been employed.…”

Section: Introductionmentioning

confidence: 99%

“…Various techniques have been employed. In [1][2][3][4], slots with different shapes are etched in the antenna ground plane to enhance the impedance bandwidth by adding another resonant frequency. For instance, in [1], two symmetric stair-slots are cut from the antenna ground plane to improve the impedance bandwidth from 2 to 6.5% centered at the operating frequency of 2.46 GHz.…”

Section: Introductionmentioning

confidence: 99%

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Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

Boukarkar¹,

Satouh²

2020

Int. J. Microw. Wireless Technol.

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We propose simple designs of compact patch antennas with bandwidth enhancement. Firstly, an inverted “L” strip is loaded onto the corner of one radiating patch edge to create an additional resonant mode which can be combined with that one of the conventional patch to enhance the operating bandwidth. Secondly, the “L” strip is replaced by inverted “T” strip to improve further the bandwidth by creating two adjustable resonant modes. The two proposed patch antennas have the particularity of enhancing the bandwidth significantly without increasing their profile and their overall sizes. Two antenna prototypes are fabricated and tested. Measurements reveal that the patch antenna loaded with “L” strip has stable radiation characteristics with 5.2 times enhancement in the relative bandwidth compared with a conventional patch antenna. The antenna loaded with inverted “T” strip has wider bandwidth (6.25 times wider than the conventional patch) and covers the operating band 5.07–5.89 GHz (15%) with measured peak gain and peak efficiency of 6.25 dBi and 78%, respectively. The proposed antennas are easy to fabricate, have a low-profile, and exhibit good performances which make them good candidates to use in real wireless applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

Boukarkar¹,

Satouh²

2020

Int. J. Microw. Wireless Technol.

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“…The use of microstrip patch employing dual H and dual U slots is discussed in [9]. Use of DGS (Defected ground structure) for K and Ka band was discussed in [10]. As the name itself indicates, the structure of the ground is intentionally made defective or faulty.…”

Section: Introductionmentioning

confidence: 99%

Defected Ground Structured Microstrip Patch Antenna with Quad L – Shaped Slot for Gain Enhancement at 4.8 GHz Frequency

Viswanadh¹,

Lakshman²,

Yogita³

et al. 2018

CAE

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A microstrip patch antenna with L-shaped slots and defected ground structure is discussed in this paper. This antenna is designed with FR4 epoxy as a substrate having dielectric constant 4.4 and the thickness of the substrate is 1.6mm. A Conventional microstrip patch antenna is first taken into consideration, thereby L shaped slots are cut near to the four edges. In order to further improve the antenna characteristics, the defective ground is considered. The designed antenna is simulated in HFSS software. The performance parameters of the antenna such as Return loss, VSWR and gain are studied, with return loss-36.61 dB, VSWR as 1.03 and gain of 10.28 dB for 4.8442 GHz frequency. Also, comparison of these parameters among conventional antenna, a slotted patch antenna and slotted patch with the defected ground is made and the important findings are tabulated.

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Fibonacci Word Fractal Antenna Design for Fixed Satellite and Aeronautical Radio Navigation Services

Kumar

Pharwaha

2018

2018 IEEE Indian Conference on Antennas and Propogation (InCAP)

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Bandwidth enhancement defected ground structure microstrip patch antenna for K and Ka band applications

Cited by 5 publications

References 12 publications

Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

Defected Ground Structured Microstrip Patch Antenna with Quad L – Shaped Slot for Gain Enhancement at 4.8 GHz Frequency

Fibonacci Word Fractal Antenna Design for Fixed Satellite and Aeronautical Radio Navigation Services

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