ItemArticle

Antenna Array with Non-Uniform Excitation and DNG Hybrid Metasurface for Next Generation Communication Equipment

Title
Antenna Array with Non-Uniform Excitation and DNG Hybrid Metasurface for Next Generation Communication Equipment
Creator
Kumar D.S.; Suganthi S.
Description
This paper presents an approach for designing a hybrid metasurface array with nonuniform excitation. The proposed design features a unique feed network with minimal use of Quarter Wave Transformers (QWT's) to reduce the form-factor. The impedance matching between the feed network and the patch is achieved by adjusting the inset position and the gap between the patch and the feed. The metasurface consists of a hybrid metamaterial unit cell with five Split Ring Resonators (SRRs) on the bottom and a hexagonal ring made of six triangles on the top surface improves the bandwidth, gain and directivity of the proposed design. Equivalent circuit of the proposed array is modeled using ADS software. A prototype 1x4 array with metasurface is designed for a resonant frequency of 2.4 GHz and fabricated. A high gain of 9.46 dB with a -10 dB impedance bandwidth of 110 MHz is achieved, which amounts to an improvement of 16.36% gain and 31.58% bandwidth compared to conventional uniform excitation array. In terms of overall size, the proposed array antenna is reduced by 38.05% compared to traditional 1x4 microstrip array. 2021 IAMOT. All Rights Reserved.
Source
International Journal of Microwave and Optical Technology, Vol-16, No. 2, pp. 174-182.
Date
2021-01-01
Publisher
International Academy of Microwave and Optical Technology (IAMOT)
Subject
Antenna array feeds; Dolph Chebyshev Excitation; Double Negative Hybrid Metasurface Microstrip Antenna Array
Coverage
Kumar D.S., RF and Microwave Research Laboratory CHRIST University, Bangalore, India; Suganthi S., RF and Microwave Research Laboratory CHRIST University, Bangalore, India
Rights
Restricted Access
Relation
ISSN: 15530396
Format
Online
Language
English
Type
Article

Collection

Articles

Citation

Kumar D.S.; Suganthi S., “Antenna Array with Non-Uniform Excitation and DNG Hybrid Metasurface for Next Generation Communication Equipment,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/15911.

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