• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology

Article

Design and Finite Difference Time Domain Analysis of a Dual Band Slotted Microstrip Patch Antenna for Wireless IoT Applications
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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v15i15.1904

Year: 2022, Volume: 15, Issue: 15, Pages: 668-676

Original Article

Design and Finite Difference Time Domain Analysis of a Dual Band Slotted Microstrip Patch Antenna for Wireless IoT Applications

Geeta Kalkhambkar1*, Pradeep Chindhi1, Rajashri Khanai2

1Research Scholar, Department of Electronics and Communication, KLE Dr. MSSCET Belagavi, India
2Professor, Department of Electronics and Communication, KLE Dr. MSSCET, Belagavi, India

*Corresponding Author
Email: [email protected]

Received Date:08 October 2021, Accepted Date:17 February 2022, Published Date:15 April 2022

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: To investigate the effect of comb-like slot dimensions on the dualband microstrip antenna performance parameters. Methods: Alternate comblike slots are placed on the microstrip patch and the slot dimensions are varied to observe the effect on the antenna performance parameters. The design is simulated in the Mentor Graphics software package. The Mentor Graphics software results are verified with Finite Difference Time Domain (FDTD) analysis in MATLAB. The measured results on the Vector Network Analyzer (VNA) are in good agreement with the simulated results. Findings: A dual-band operation resonating at 2.25 GHz and 3.5 GHz is observed. The return loss of -30.23 dB and -33.3 dB at 2.25 GHz and 3.5 GHz is noticed. The gain and directivity at 2.25 GHz are 4.11 dBi and 6.2 dBi; whereas, at 3.5 GHz it is 4 dBi and 6.8 dBi respectively. It is observed that the slot width significantly influences the impedance matching. The alternate arrangement of comb-like slots on the patch increases the electrical length and improves the Return Loss (S11). Novelty: Enhancement of S11 characteristics without significant shift in the resonating frequency by felicitous placements of comb-like slots is the novelty of the proposed work.

Keywords: Slotted Antenna; Dual Band; FDTD; UPML; Return Loss (S11)

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Copyright

© 2022 Kalkhambkar et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Published By Indian Society for Education and Environment (iSee)

  • 15 April 2022

Year: 2022, Volume: 15, Issue: 15

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