Design of a Frequency Notch Band Stepped Rectangular Microstrip Antenna
Annapantula Sudhakar1, Telagarapu Prabhakar2

1A. Sudhakar, Department of ECE, GMR Institute of Technology, Rajam (Andhra Pradesh), India.
2T. Prabhakar, Department of ECE, GMR Institute of Technology, Rajam (Andhra Pradesh), India.

Manuscript received on 18 February 2019 | Revised Manuscript received on 27 February 2019 | Manuscript published on 28 February 2019 | PP: 168-171 | Volume-8 Issue-3, February 2019 | Retrieval Number: C5879028319/19©BEIESP
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Abstract: The intention of this paper is to propose and explore a frequency notch band stepped rectangular microstrip antenna ranging from 4 to 11 GHz. First design is about UWB antenna with a frequency range from 4.3 to 10.9 GHz and second design deals with frequency notched antenna ranging from 4 to 11 GHz with a stop band from 4.4 to 4.8 GHz. It is required to stop the frequency band from 4.4 to 4.8 GHz used for receiving the frequencies of INSAT as it is overlapping the UWB range. The notch band is due to the introduction of U shaped slot on patch of FR4 substrate. By changing the dimensions of the slot and ground height, the frequency response can be altered. Simulation of the suggested antenna is done by HFSS software. Graphs for the return loss, VSWR, Radiation patterns are illustrated to support the behavior of the antenna.
Keywords: Microstrip Antenna, Notched Band, Return Loss, Frequency Response.

Scope of the Article: Frequency Selective Surface