A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer

Abstract The present is a low‐profile, wide‐angle scanning, ultrawideband, tightly coupled dipole array that lacks a wide‐angle impedance matching layer and lossy materials. Impedance matching will deteriorate at the lower end of the operating bandwidth due to the influence of the ground plane. A we...

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Main Authors: Yuan Geng, Deqiang Yang
Format: Article
Language:English
Published: Wiley 2023-04-01
Series:IET Microwaves, Antennas & Propagation
Subjects:
Online Access:https://doi.org/10.1049/mia2.12350
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author Yuan Geng
Deqiang Yang
author_facet Yuan Geng
Deqiang Yang
author_sort Yuan Geng
collection DOAJ
description Abstract The present is a low‐profile, wide‐angle scanning, ultrawideband, tightly coupled dipole array that lacks a wide‐angle impedance matching layer and lossy materials. Impedance matching will deteriorate at the lower end of the operating bandwidth due to the influence of the ground plane. A well‐designed perforated balun is used to achieve better impedance matching. Moreover, parasitic metallic strips are attached to the dipole's side to add additional reactive components. According to the results of simulations, the impedance bandwidth of the array, which ranges from 0.67 to 2.83 GHz, and its wide‐angle scanning capability, which scans 75° in the E‐plane and 45° in the H‐plane, both achieve good performance when the voltage standing wave ratio is less than 3. The profile of the array is only 0.0581λlow above the ground plane, where λlow is the wavelength at the lowest operating frequency. The proposed array's simulated results are validated by fabricating and measuring an 8 × 8 prototype array.
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spelling doaj.art-85f8f26be1f7403298217c65de02fa612023-04-12T03:22:36ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332023-04-0117538639110.1049/mia2.12350A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layerYuan Geng0Deqiang Yang1School of Electronic Science and Engineering University of Electronic Science and Technology of China (UESTC) Chengdu ChinaSchool of Electronic Science and Engineering University of Electronic Science and Technology of China (UESTC) Chengdu ChinaAbstract The present is a low‐profile, wide‐angle scanning, ultrawideband, tightly coupled dipole array that lacks a wide‐angle impedance matching layer and lossy materials. Impedance matching will deteriorate at the lower end of the operating bandwidth due to the influence of the ground plane. A well‐designed perforated balun is used to achieve better impedance matching. Moreover, parasitic metallic strips are attached to the dipole's side to add additional reactive components. According to the results of simulations, the impedance bandwidth of the array, which ranges from 0.67 to 2.83 GHz, and its wide‐angle scanning capability, which scans 75° in the E‐plane and 45° in the H‐plane, both achieve good performance when the voltage standing wave ratio is less than 3. The profile of the array is only 0.0581λlow above the ground plane, where λlow is the wavelength at the lowest operating frequency. The proposed array's simulated results are validated by fabricating and measuring an 8 × 8 prototype array.https://doi.org/10.1049/mia2.12350antenna arraysantenna feedsantennas
spellingShingle Yuan Geng
Deqiang Yang
A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
IET Microwaves, Antennas & Propagation
antenna arrays
antenna feeds
antennas
title A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
title_full A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
title_fullStr A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
title_full_unstemmed A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
title_short A low‐profile wide‐angle scanning ultrawideband tightly coupled dipole array without any wide‐angle impedance matching layer
title_sort low profile wide angle scanning ultrawideband tightly coupled dipole array without any wide angle impedance matching layer
topic antenna arrays
antenna feeds
antennas
url https://doi.org/10.1049/mia2.12350
work_keys_str_mv AT yuangeng alowprofilewideanglescanningultrawidebandtightlycoupleddipolearraywithoutanywideangleimpedancematchinglayer
AT deqiangyang alowprofilewideanglescanningultrawidebandtightlycoupleddipolearraywithoutanywideangleimpedancematchinglayer
AT yuangeng lowprofilewideanglescanningultrawidebandtightlycoupleddipolearraywithoutanywideangleimpedancematchinglayer
AT deqiangyang lowprofilewideanglescanningultrawidebandtightlycoupleddipolearraywithoutanywideangleimpedancematchinglayer