Design and Modal Analysis of a High Gain CavityBacked Bowtie Antenna

In this work, a novel cavity backed leaf-shaped bowtie antenna is designed using Characteristic Mode Analysis (CMA). The developed antenna is backed by a rectangular cavity to get Uni-directional radiation pattern with high gain and good Front-to-back-ratio characteristics. CMA technique is used in...

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Bibliographic Details
Main Authors: Kamili, Jagadeesh Babu, Bhattacharya, Amitabha
Format: Conference Proceeding
Language:English
Subjects:
Antenna radiation patterns
bowtie antenna
cavity backed
characteristic angle
characteristic modes
Gain
Ground penetrating radar
Modal analysis
modal current
Optimization
Radar antennas
Shape
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Summary:In this work, a novel cavity backed leaf-shaped bowtie antenna is designed using Characteristic Mode Analysis (CMA). The developed antenna is backed by a rectangular cavity to get Uni-directional radiation pattern with high gain and good Front-to-back-ratio characteristics. CMA technique is used in the design and optimization of the rectangular cavity structure. The developed antenna resonates from 0.8 to 4.3 GHz with stable radiation characteristics giving a maximum gain of 11.5 dBi and FBR of 15.2 dB, making it suitable for applications like Ground Penetrating Radar (GPR) etc.
ISSN:2325-9418
DOI:10.1109/INDICON59947.2023.10440728