A Novel Triangular Shaped UWB Fractal Antenna Using Circular Slot

Shahu, Babu Lal; Pal, Srikanta; Chattoraj, Neela

doi:10.1515/freq-2015-0110

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…A circular slot is then etched on the triangular patch to provide a notched response. The construction process of triangular-circular fractal geometry (Shahu et al , 2016) onto the dual-stub forms the zeroth iteration and this leads to wideband characteristics of the bandpass filter.…”

Section: Proposed Wideband Fractal Filter Designmentioning

confidence: 99%

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

Karthie

Salivahanan

2019

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Purpose This paper aims to present the design of a novel triangular-shaped wideband microstrip bandpass filter implemented on a low-cost substrate with a notched band for interference rejection. Design/methodology/approach The conventional dual-stub filter is embedded with simple fractal-based triangular-circular geometries through various iterations to reject wireless local area network (WLAN) signals with a notched band at 5.8 GHz. Findings The filter covers a wide frequency band from 3.1 to 8.8 GHz and has a fractional bandwidth of 98 per cent with the lower passband of 57.5 per cent and upper passband of 31.6 per cent separated by a notched band at 5.8 GHz. The proposed wideband prototype bandpass filter is fabricated in FR-4 substrate using PCB technology and the simulation results are validated with measurement results which include insertion loss, return loss and group delay. The fabricated filter has a sharp rejection of 28.3 dB at 5.8 GHz. Measured results show good agreement with simulated responses. The performance of the fractal-based wideband filter is compared with other wideband bandpass filters. Originality/value In the proposed work, a fractal-based wideband bandpass filter with a notched band is reported. The conventional dual-stub filter is deployed with triangular-circular geometry to design a wideband filter with a notched band to suppress interference signals at WLAN frequency. The proposed wideband filter exhibits smaller size and better interference rejection compared to other wideband bandpass filter designs implemented on low-cost substrate reported in the literature. The aforementioned wideband filter finds application in wideband wireless communication systems.

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Section: Proposed Wideband Fractal Filter Designmentioning

confidence: 99%

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

Karthie

Salivahanan

2019

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“…So, fractal antenna structures are good candidates for UWB applications. In the literature, some UWB fractal antenna geometries are available …”

Section: Introductionmentioning

confidence: 99%

Flower‐shaped ultra‐wideband fractal antenna

Singhal

Singh

2019

Int J RF Microw Comput Aided Eng

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A flower‐shaped ultra‐wideband fractal antenna is presented. It comprises a fourth iterative flower‐shaped radiator, asymmetrical stub‐loaded feeding line, and coplanar quarter elliptical ground planes. A wide operating band of 12.12 GHz (4.58‐16.7 GHz) for S 11 ≤ − 10 dB is achieved along with an overall antenna footprint of 15.7 × 11.4 mm2. In addition, other desirable characteristics, that is, omnidirectional radiation patterns, peak gain upto 5 dB, and fidelity factor more than 75% are achieved. A good agreement exists between the simulation and measured results. The obtained results illustrate that this antenna has wide operating range and compact dimensions than available structures.

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A Novel Triangular Shaped UWB Fractal Antenna Using Circular Slot

Abstract: The article presents the design of triangular shaped fractal based antenna with circular slot for ultra wideband (UWB) application. The antenna is fed using microstrip line and has overall dimension of 24×24×1.6 mm

Cited by 2 publications

References 13 publications

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

Flower‐shaped ultra‐wideband fractal antenna

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