A high gain broadband circular patch antenna with spiral‐shaped slot‐loaded modified ground plane

Mondal, Kalyan; Sarkar, Partha Pratim

doi:10.1002/mop.28535

Cited by 17 publications

(6 citation statements)

References 5 publications

(4 reference statements)

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“…All the antennas simulated results of reflection coefficients are presented in Figures . The reflection coefficient versus frequency response for the variation of Z parameter (left movement of radiating patch) and (right movement of radiating patch) of antenna‐1, antenna‐2 and antenna‐3, antenna‐9, antenna‐10, antenna‐11, and antenna‐12 are presented in Figures and , respectively. For the variation of S and X parameters, the reflection coefficient responses are presented in Figure .…”

Section: Antenna Results and Discussionmentioning

confidence: 99%

“… Mondal and Sarkar reported that, maximum 131% bandwidth is achieved by introducing T‐shape and H‐shape radiating patch with rectangle shape and T‐shape slots loaded on the ground plane. Maximum 123% bandwidth is achieved by introducing a spiral shape slot on the ground plane . The monopole antenna is designed by different shape of slots loaded on the ground plane for wide band and ultra wide band applications in Refs .…”

Section: Introductionmentioning

confidence: 99%

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U‐shape broadband monopole antenna with modified ground plane

Mondal¹,

Sarkar

2016

Micro & Optical Tech Letters

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In this article an U‐shape broadband monopole antenna with rectangular slots loaded ground plane has been designed and analysis. The proposed antenna covers the frequency band of (1.55–8.55 GHz) with multiresonating frequency at 1.65, 2.9, and 7.95 GHz. The effect of movement of radiating patch on the dielectric substrate and the effect of slots on the ground plane are studied. The maximum impedance bandwidth of 138% (simulated) and 142% (measured) with maximum peak gain 3.59 dBi (simulated) and 4 dBi (measured) are obtained. It is very much useful in modern wireless communication systems as an electronics device. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2544–2547, 2016

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Section: Antenna Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

U‐shape broadband monopole antenna with modified ground plane

Mondal¹,

Sarkar

2016

Micro & Optical Tech Letters

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“…Researchers are trying to design compact and broad band microstrip antenna. Different techniques like L‐ shaped, T‐shaped, E‐shaped U‐shaped slots, or slits are incorporated in the ground plane and feeding positions are rearranged to achieve compactness and broad bandwidth . But with bandwidth enhancement gain of the antenna rapidly decreases.…”

Section: Introductionmentioning

confidence: 99%

Half hexagonal broadband high gain microstrip patch antenna for mobile and radar applications

Mondal

Sarkar

2016

Micro & Optical Tech Letters

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The difference between simulation and measurement results observed at 30 GHz are due to primary sources slightly different in simulation and measurement.In Figure 6, we can observe that the optimum frequency is 32 GHz (measured gain equals to 25 dBi). We can explain this result by the tradeoff between reflection phase by unit cell at 20 and 30 GHz that leads to errors compared to theoretical values of the Fresnel zones. More precisely, 10% of the patches at 30 GHz have a phase error of 388. The tradeoff has more bad effects at this frequency. The radiation pattern was measured at the optimum frequency (32 GHz) and is presented in Figure 8. CONCLUSIONAn original passive Fresnel Reflectarray was designed and realized for a bi-band satellite communication application. The bi-band behavior is obtained by using multi resonant elementary cells such as double ring patches and ring 1 disk patches. These structures have the benefit of be single layer and are easy to produce. The gain measurement shows that the antenna works correctly at 20 and 30 GHz with only small difference with simulations. The need to have a tradeoff between the reflection phases by elementary cells at 20 and 30 GHz shifts the maximum gain at higher frequency. bandwidth and large size of patch for better performance [3,4]. Researchers are trying to design compact and broad band microstrip antenna. Different techniques like L-shaped, T-shaped, Eshaped U-shaped slots, or slits are incorporated in the ground plane and feeding positions are rearranged to achieve compactness and broad bandwidth [5,6]. But with bandwidth enhancement gain of the antenna rapidly decreases. In this article a half hexagonal broadband microstrip patch antenna is designed to overcome the drawback. With the high peak gain of 6.2 dBi a large frequency band of 2.0-11.5 GHz with 141% of bandwidth is achieved. ANTENNA DESIGN Conventional Antenna DesignThe conventional antenna and its dimensions are shown in Figure 1 and Table 1. The area of the half hexagonal radiating patch is 330 mm 2 . A PTFE substrate is used to design the antenna. The feeding point of the conventional half hexagonal patch antenna is located at (25, 1). Similarly a circular and rectangular microstrip patch antenna has been designed with same substrate, dielectric constant, feeding point location, and antenna area of the half hexagonal patch antenna (conventional). The center and diagonal coordinates of all the antennas are located at (0, 0), X (230, 30) and Y (32, 230). The half hexagonal Al A2 A3 A4 A5 A6 A 3 0 --3 0 --B 5 --5 --C 1 7 --1 7 --D 6 2 6 2 6 2 6 2 6 2 6 2 E 6 0 6 0 6 0 6 0 6 0 6 0 F ---26 26 26 G ---19 19 19 H ---22 22 22 I ---19 19 19 J ---5 5 The four rectangular slots are loaded in the ground plane of the proposed patch antenna. With the proposed half hexagonal patch antenna a circular and rectangular patch antenna has been designed and studied. PTFE substrate is used to design the circular and rectangular microstrip patch antenna as shown in Fi...

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“…In Ref. , a broadband circular microstrip patch antenna for wireless communications is presented and the impact of antenna ground plane modification is studied, obtaining a maximum impedance bandwidth ratio of 4.22:1. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Genetic algorithm optimization of a CPW fed UWB circular ring monopole with modified ground plane

Rodrigues

D’Assunção

Lins

et al. 2016

Microw. Opt. Technol. Lett.

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In this paper a coplanar waveguide (CPW) fed ultrawideband (UWB) circular ring monopole antenna with a modified ground plane is proposed. The dimensions of the antenna are obtained using a genetic algorithm (GA) optimization procedure. To proof the concept and validate the design antenna prototypes have been fabricated and tested. A good agreement is obtained between numerical simulation and experimental results. The input reflection coefficient is below 210 dB in the frequency range 2.52 GHz to 12 GHz, which corresponds to an impedance bandwidth of about 4.8:1, and the gain is about 3 dBi. The proposed antenna element seems to be suitable for UWB and cognitive radio spectrum sensing applications.

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A high gain broadband circular patch antenna with spiral‐shaped slot‐loaded modified ground plane

Cited by 17 publications

References 5 publications

U‐shape broadband monopole antenna with modified ground plane

U‐shape broadband monopole antenna with modified ground plane

Half hexagonal broadband high gain microstrip patch antenna for mobile and radar applications

Genetic algorithm optimization of a CPW fed UWB circular ring monopole with modified ground plane

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