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Title: Ultra-wideband horn antenna with abrupt radiator

Abstract

An ultra-wideband horn antenna transmits and receives impulse waveforms for short-range radars and impulse time-of flight systems. The antenna reduces or eliminates various sources of close-in radar clutter, including pulse dispersion and ringing, sidelobe clutter, and feedline coupling into the antenna. Dispersion is minimized with an abrupt launch point radiator element; sidelobe and feedline coupling are minimized by recessing the radiator into a metallic horn. Low frequency cut-off associated with a horn is extended by configuring the radiator drive impedance to approach a short circuit at low frequencies. A tapered feed plate connects at one end to a feedline, and at the other end to a launcher plate which is mounted to an inside wall of the horn. The launcher plate and feed plate join at an abrupt edge which forms the single launch point of the antenna. 8 figs.

Inventors:
Publication Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
644405
Patent Number(s):
US 5,754,144/A/
Application Number:
PAN: 8-684,110
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 426000; PA: EDB-98:095062; SN: 98001993217
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 19 May 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ANTENNAS; RADAR; DESIGN; RADIO EQUIPMENT; NOISE

Citation Formats

McEwan, T.E.. Ultra-wideband horn antenna with abrupt radiator. United States: N. p., 1998. Web.
McEwan, T.E.. Ultra-wideband horn antenna with abrupt radiator. United States.
McEwan, T.E.. Tue . "Ultra-wideband horn antenna with abrupt radiator". United States.
@article{osti_644405,
title = {Ultra-wideband horn antenna with abrupt radiator},
author = {McEwan, T.E.},
abstractNote = {An ultra-wideband horn antenna transmits and receives impulse waveforms for short-range radars and impulse time-of flight systems. The antenna reduces or eliminates various sources of close-in radar clutter, including pulse dispersion and ringing, sidelobe clutter, and feedline coupling into the antenna. Dispersion is minimized with an abrupt launch point radiator element; sidelobe and feedline coupling are minimized by recessing the radiator into a metallic horn. Low frequency cut-off associated with a horn is extended by configuring the radiator drive impedance to approach a short circuit at low frequencies. A tapered feed plate connects at one end to a feedline, and at the other end to a launcher plate which is mounted to an inside wall of the horn. The launcher plate and feed plate join at an abrupt edge which forms the single launch point of the antenna. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 19 00:00:00 EDT 1998},
month = {Tue May 19 00:00:00 EDT 1998}
}