@inproceedings{e854941ed21c4a9591a1c1d86eaa8faa,
title = "Broadband linear antenna arrays with frequency-invariant half-power beamwidth",
abstract = "This paper reports on the design of broadband four-element antenna arrays with frequency-invariant half-power beamwidth (HPBW) within a bandwidth (BW) of 3:1. They are based on frequency-selective feednetworks that gradually shift the power from the outer elements to the inner ones as frequency increases. The operating principles of the proposed concept are presented through a four-element array of isotropic radiators. For practical validation, a 3:1 elliptical monopole antenna array fed by a feednetwork that comprises two second order low-pass and two fifth-order high-pass filters was developed. It exhibited HPBW variation of ±26.5\% in the frequency range 2-6 GHz.",
keywords = "Antenna arrays, Broadband antenna, Constant beamwidth, Feednetwork, Linear antenna arrays.",
author = "Dakotah Simpson and DImitra Psychogiou",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 ; Conference date: 07-07-2019 Through 12-07-2019",
year = "2019",
month = jul,
doi = "10.1109/APUSNCURSINRSM.2019.8888659",
language = "English",
series = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1339--1340",
booktitle = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
address = "United States",
}