Bandwidth enhancement of microstrip patch antenna using parasitic patch

Reddy, Mekala Harinath; Joany, R.M.; Reddy, M. Jayasaichandra; Sugadev, M.; Логашанмугам, Э.

doi:10.1109/icstm.2017.8089172

Cited by 15 publications

(6 citation statements)

References 4 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%

“…For example, the design in [5] employs two pairs of shorting pins to combine TM 10 and TM 30 modes resulting in 13% of impedance bandwidth without increasing the antenna profile. Another technique of bandwidth enhancement is reported in [9][10][11] where parasitic patches are used to excite two or more resonances. By combining all the resonant frequencies, the antenna bandwidth can be broadened significantly.…”

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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“…Several studies investigating bandwidth enhancement of microstrip antenna have been carried out by [6,7]. The proposed methods include defected ground structure (DGS) [6], electromagnetic band gap (EBG) [7,8], parasitic patch [9,10], metamaterial [11], metamaterial bilayer substrates (MBS) [12], monopole slot [13], T-shaped slot [14], cylindrical dielectric slot (CDS) [15], polymeric grid [16], spiral split ring (SSR) [17], Jerusalem cross-shaped [18], and characteristic modes [19]. The DGS method was proposed by Marotkar [6], it is realized by etching the ground plane so the current distribution in the ground plane is disturbed.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

Praptodiyono¹,

Herudin²,

Aribowo³

et al. 2019

IJECE

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In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half-cut microstrip structure is proposed. Further, this proposed antenna structure will be applied to multiple input multiple output (MIMO) antenna 2´2. Therefore, this research was investigated conventional circular shape antenna (CCSA), circular shaped beleved antenna (CSBA), and MIMO circular shaped beleved antenna (MIMO-CBSA) as Model 1, Model 2, and Model 3, respectively. An FR4 substrate with er= 4.4, thickness h=1.6 mm, and tan d=0.0265 was used. The simulation has been conducted using Advanced Design System (ADS). The antenna CCSA/CSBA/ MIMO-CBSA achieve 1.831GHz/2.265 GHz/2.256 GHz, -15.13dB/-17.37dB/-17.25 dB, 1.42/1.31/1.33, and 1.474/2.332/2.322 for center frequency, reflection coefficient, VSWR, and bandwidth, respectively. This antenna has a size 63x90 mm and 51.5x90 mm for CCSA (Model 1) and CSBA (Model 2), respectively. After the structure of MIMO 2´2 was applied, the size of antenna MIMO-CBSA (Model 3) became 180 mm x 180 mm with a mutual coupling (S21)=-26.18 dB and mutual coupling (S31)=-26.41 dB. The result showed that proposed antenna CSBA (Model 2) has wider-bandwidth of 58,2% and smaller-size of 18.2%. Furthermore, after CSBA (Model 2) structure was applied to MIMO 2´2 (Model 3) and the MIMO antenna obtain good mutual coupling (<-15dB). Moreover, the measured results are good agreement with the simulated results. In conclusion, all of these advantages make it particularly valuable in multistandard antenna applications design such as GSM950, WCDMA1800, LTE2300, and WLAN2400.

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“…Although both of these methods were reported separately, still have wide applications such as bandwidth/gain enhancement and so on. Parasitic elements based patch antennas can be implemented on designs of variable shapes or sizes [8][9][10][11][12][13][14]. Effect of coupling is also reduced by parasitic elements [15].…”

Section: Introduction and Antenna Designmentioning

confidence: 99%

Parasitic coupled microstrip antenna using shared aperture technique

Dhiman

Khah

2019

Micro & Nano Letters

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Shared aperture based 2 × 2 matrix shaped patch antenna is described here. The 2 × 2 matrix based patch antenna with optimised dimensions is designed from a rotated hollow square shape based patch. Out of four elements, two diagonally placed elements are acting as resonating elements (for L-band and S-band separately); rest two acting as parasitic elements. The proposed prototype has a measured impedance bandwidth of 1.54-1.7 GHz in L-band (S 11 <−10 dB) and 3.7-4.2 GHz in S-band (S 22 <−10 dB). Isolation is better than 20 dB in both cases, with reduced cross-polarisation, due to the presence of the parasitic elements. Details of the proposed prototype and design procedure are given; the experimental results are also discussed along with potential advantages and applications. The proposed antenna is designed and fabricated using FR-4 substrate (90 mm × 90 mm).

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Bandwidth enhancement of microstrip patch antenna using parasitic patch

Cited by 15 publications

References 4 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

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

Parasitic coupled microstrip antenna using shared aperture technique

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