Zobrazeno 1 - 5
of 5
pro vyhledávání: '"James B. Dee"'
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
This document describes a method of generating, optimizing, and fabricating a three-dimensional (3D) fragmented aperture antenna. The 3D design was able to achieve right-hand circular polarization with a single unbalanced feed. Measured results are s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d25edde5ab7d3e039e35fb8227a1b1a
https://doi.org/10.1109/apusncursinrsm.2019.8888314
https://doi.org/10.1109/apusncursinrsm.2019.8888314
Autor:
Jonathan Perez, Theresa Brunasso, David W. Landgren, James B. Dee, Joshua M. Kovitz, G. Smith, Jeramy M. Marsh, Kenneth W. Allen, Daniel J.P. Dykes, Charles P. Hunter
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
A fully combined, fixed-beam, ultra-wideband array with unbalanced feeds is described. Both the array elements and power combiners are based on the fragmented aperture principle. Each was designed separately using a genetic algorithm, then combined t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ad30a1f4cb00140cf818ea400ae787e
https://doi.org/10.1109/apusncursinrsm.2019.8888550
https://doi.org/10.1109/apusncursinrsm.2019.8888550
Autor:
David W. Landgren, Charles P. Hunter, Kenneth W. Allen, Jonathan Perez, Jeramy M. Marsh, J P Dykes Daniel, Theresa Brunasso, James B. Dee
Publikováno v:
NAECON 2018 - IEEE National Aerospace and Electronics Conference.
In this work, a novel fragmented combiner network is designed to excite a planar phased array antenna, comprised of 4x4 elements with a single RF port (i.e. 16:1). The antenna system, intended for receive (Rs) applications, was engineered with ultra-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57f9ff11ce5e0373c9f3ef76aa2205f3
https://doi.org/10.1109/naecon.2018.8556798
https://doi.org/10.1109/naecon.2018.8556798
Publikováno v:
2017 IEEE MTT-S International Microwave Symposium (IMS).
Planar W-band antenna tiles were created by defining pixelated subwavelength metal patterns on 4 mm square and 500 μm thick glass tiles space fed by an open-ended waveguide. The metal patterns were optimized to form beams and convert polarization. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cd829b050202dde15a0def45c0348d1
https://doi.org/10.1109/mwsym.2017.8058708
https://doi.org/10.1109/mwsym.2017.8058708
Autor:
James B. Deemy, Todd C. Rasmussen
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 14, Iss , Pp 23-36 (2017)
The Dougherty Plain in southwest Georgia is a flat, karstic, depressional-landscape dominated by irrigated and dry-land agriculture devoted to row-crops and pasture with interspersed wetlands and forests. Stormwater runoff rarely discharges into pere
Externí odkaz:
https://doaj.org/article/90b1272ae7ae4ecc94f426989b5198ec