Low-profile, Modular, Ultra-Wideband Phased Arrays

Ultrawideband (UWB) phased antenna arrays are critical to the success of future multi-functional communication, sensing, and countermeasure systems, which will utilize a few UWB phased arrays in place of multiple antennas on a platform. The success of this new systems approach relies in part on the...

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Main Author: Holland, Steven S
Format: Others
Published: ScholarWorks@UMass Amherst 2011
Subjects:
Online Access:https://scholarworks.umass.edu/open_access_dissertations/450
https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1453&context=open_access_dissertations
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spelling ndltd-UMASS-oai-scholarworks.umass.edu-open_access_dissertations-14532020-12-02T14:38:50Z Low-profile, Modular, Ultra-Wideband Phased Arrays Holland, Steven S Ultrawideband (UWB) phased antenna arrays are critical to the success of future multi-functional communication, sensing, and countermeasure systems, which will utilize a few UWB phased arrays in place of multiple antennas on a platform. The success of this new systems approach relies in part on the ability to manufacture and assemble low-cost UWB phased arrays with excellent radiation characteristics.This dissertation presents the theory and design of a new class of UWB arrays that is based on unbalanced fed tightly-coupled horizontal dipoles over a ground plane. Practical implementation of this concept leads to two inexpensive wideband array topologies, the Banyan Tree Antenna (BTA) Array, and the Planar Ultrawideband Modular Antenna (PUMA) Array. The key challenge in designing unbalanced-fed tightly-coupled dipole arrays lies in the control of a common mode resonance that destroys UWB performance. This work introduces a novel feeding strategy that eliminates this resonance and results in wideband, wide-angle radiation. More importantly, the new feeding scheme is simple and intuitive, and can be implemented at low-cost in both vertically and planarly-integrated phased array architectures. Another desirable byproduct of this topology is the electrical and mechanical modularity of the aperture, which enables easy manufacturability and assembly. A theoretical framework is presented for the new phased array topologies, which is then applied to the design of innite BTA and PUMA arrays that achieve 4:1 and 5:1 bandwidths,respectively. A practical application of this technology is demonstrated through the full design, fabrication, and measurement of a 7.25-21GHz 16x16 dual-pol PUMA array prototype for SATCOM applications. 2011-09-01T07:00:00Z text application/pdf https://scholarworks.umass.edu/open_access_dissertations/450 https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1453&context=open_access_dissertations Open Access Dissertations ScholarWorks@UMass Amherst antenna arrays common mode dipole planar arrays SATCOM ultrawideband Electrical and Computer Engineering
collection NDLTD
format Others
sources NDLTD
topic antenna arrays
common mode
dipole
planar arrays
SATCOM
ultrawideband
Electrical and Computer Engineering
spellingShingle antenna arrays
common mode
dipole
planar arrays
SATCOM
ultrawideband
Electrical and Computer Engineering
Holland, Steven S
Low-profile, Modular, Ultra-Wideband Phased Arrays
description Ultrawideband (UWB) phased antenna arrays are critical to the success of future multi-functional communication, sensing, and countermeasure systems, which will utilize a few UWB phased arrays in place of multiple antennas on a platform. The success of this new systems approach relies in part on the ability to manufacture and assemble low-cost UWB phased arrays with excellent radiation characteristics.This dissertation presents the theory and design of a new class of UWB arrays that is based on unbalanced fed tightly-coupled horizontal dipoles over a ground plane. Practical implementation of this concept leads to two inexpensive wideband array topologies, the Banyan Tree Antenna (BTA) Array, and the Planar Ultrawideband Modular Antenna (PUMA) Array. The key challenge in designing unbalanced-fed tightly-coupled dipole arrays lies in the control of a common mode resonance that destroys UWB performance. This work introduces a novel feeding strategy that eliminates this resonance and results in wideband, wide-angle radiation. More importantly, the new feeding scheme is simple and intuitive, and can be implemented at low-cost in both vertically and planarly-integrated phased array architectures. Another desirable byproduct of this topology is the electrical and mechanical modularity of the aperture, which enables easy manufacturability and assembly. A theoretical framework is presented for the new phased array topologies, which is then applied to the design of innite BTA and PUMA arrays that achieve 4:1 and 5:1 bandwidths,respectively. A practical application of this technology is demonstrated through the full design, fabrication, and measurement of a 7.25-21GHz 16x16 dual-pol PUMA array prototype for SATCOM applications.
author Holland, Steven S
author_facet Holland, Steven S
author_sort Holland, Steven S
title Low-profile, Modular, Ultra-Wideband Phased Arrays
title_short Low-profile, Modular, Ultra-Wideband Phased Arrays
title_full Low-profile, Modular, Ultra-Wideband Phased Arrays
title_fullStr Low-profile, Modular, Ultra-Wideband Phased Arrays
title_full_unstemmed Low-profile, Modular, Ultra-Wideband Phased Arrays
title_sort low-profile, modular, ultra-wideband phased arrays
publisher ScholarWorks@UMass Amherst
publishDate 2011
url https://scholarworks.umass.edu/open_access_dissertations/450
https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1453&context=open_access_dissertations
work_keys_str_mv AT hollandstevens lowprofilemodularultrawidebandphasedarrays
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