CPW-Fed Wide Band Micro-machined Fractal Antenna with Band-notched Function

Authors

  • Ashwini Kumar Department of Electronics and Communication Engineering Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India
  • Amar Partap Singh Pharwaha Department of Electronics and Communication Engineering Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India

Keywords:

Gain, micro-machining, Sierpinski fractal, silicon, wideband

Abstract

In this paper, a straightforward yet effective design methodology to design wideband antenna with band notched characteristics has been proposed. Sierpinski carpet fractal geometry has been used to realize the antenna structure. Co-planar waveguide feed is used with a novel structure to achieve larger impedance bandwidth and band notching characteristics. Proposed antenna is designed using High Frequency Structure Simulator (HFSS) on a low cost FR4 substrate (ɛr=4.4) which resonates at three frequencies 1.51 GHz (1.19-2.06GHz), 6.53 GHz and 8.99 GHz (4.44-9.54 GHz) while a band is notched at 10.46 GHz (9.32-11.92 GHz). The proposed antenna has an electrical dimension of 0.36 λm× 0.24 λm, here λm is the wavelength with respect to lowest resonating frequency of the antenna. The resonating and radiation characteristics of the antenna are verified experimentally. Further, investigations are made to achieve easy integration of the antenna to the monolithic microwave integrated circuits. For that the antenna has been designed on micro-machined high index Silicon substrate which improve matching and gain of the antenna. The results of the micro-machined Sierpinski carpet fractal antenna are highly convincing over the conventional FR4 based antenna.

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Author Biographies

Ashwini Kumar, Department of Electronics and Communication Engineering Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India

Ashwini Kumar is pursuing his Ph.D degree in the field of Microstrip Patch Antennas from Sant Longowal Institute of Engineering and Technology (SLIET), Longowal, Sangrur, Punjab, India. His research includes Microstrip patch antennas and Fractal antennas Design.

Amar Partap Singh Pharwaha, Department of Electronics and Communication Engineering Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India

Amar Partap Singh Pharwaha is a Professor of ECE at SLIET, Longowal. Singh is credited with a professional experience of more than 24 years. He has guided seven Ph.D. thesis and published more than 180 research papers in various national and international journals/ conferences.

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Published

2020-08-01

How to Cite

[1]
Ashwini Kumar and Amar Partap Singh Pharwaha, “CPW-Fed Wide Band Micro-machined Fractal Antenna with Band-notched Function”, ACES Journal, vol. 35, no. 8, pp. 929–935, Aug. 2020.

Issue

2020: Vol 35 Iss 8

Section

Articles