EP 0518663 B1 19980114 - Primary horn for parabolic-reflector antenna
Title (en)
Primary horn for parabolic-reflector antenna
Title (de)
Hornstrahler für Parabolantenne
Title (fr)
Source primaire du type cornet pour antenne parabolique
Publication
Application
Priority
JP 16932191 A 19910614
Abstract (en)
[origin: EP0518663A2] A parabolic-reflector antenna has a primary horn (13) including first (21), second (22), and third (23) hollow portions. The first hollow portion (21) has an elliptical aperture on one end thereof and a circular cross section on an opposite end thereof, and is progressively tapered away from the elliptical aperture. The second hollow portion (22) has a circular cross section and a constant diameter, and is joined to the opposite end of the first hollow portion (21). The third hollow portion (23) has a circular cross section on one end thereof and a circular cross section on an opposite end thereof. The third hollow portion (23) is joined to the second hollow portion (22), and is progressively tapered away from the second hollow portion (22). The parabolic-reflector antenna also includes a parabolic reflector (12) having an elliptical aperture whose major axis is perpendicular to the major axis of the elliptical aperture of the primary horn (13). <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 13/02 (2006.01); H01Q 19/12 (2006.01); H01Q 19/13 (2006.01); H01Q 25/04 (2006.01)
CPC (source: EP)
H01Q 13/0225 (2013.01); H01Q 19/132 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0518663 A2 19921216; EP 0518663 A3 19940824; EP 0518663 B1 19980114; DE 69224010 D1 19980219; DE 69224010 T2 19980514; JP 3466634 B2 20031117; JP H04368009 A 19921221; TW 211087 B 19930811
DOCDB simple family (application)
EP 92305353 A 19920611; DE 69224010 T 19920611; JP 16932191 A 19910614; TW 82100527 A 19930129