EP 0439970 B1 19941228 - Slotted wave guide radiator with non-inclined slots excited by conductive printed patterns.
Title (en)
Slotted wave guide radiator with non-inclined slots excited by conductive printed patterns.
Title (de)
Geschlitzter Hohlleiterstrahler mit quer verlaufenden Schlitzen, die von gedruckten, leitenden Mustern erregt werden.
Title (fr)
Guide à fentes rayonnantes non inclinées à excitation par des motifs conducteurs imprimés rayonnants.
Publication
Application
Priority
FR 8914896 A 19891114
Abstract (en)
[origin: JPH03173205A] PURPOSE: To obtain a waveguide having non-inclined radiation slots by providing slots of about half of operating wavelengths on a narrow wall perpendicularly to a waveguide axis and using flat radiation conductive patches near the slots on the narrow wall. CONSTITUTION: Radiation slots 2 and 3 orthogonally cross to the axis of a waveguide 1. Patches 5 and 7 are provided on a dielectric plate 4 fixed to a narrow wall and are associated with transmission lines 6 and 8 crossing the slots 6 and 8 respectively. These sets are arranged at λg /2 pitch, when the operation wavelength of the waveguide 1 is λg . The patches 5 and 7 combine electromagnetic energy that propagates through the waveguide 1 to an antenna. The patches do not face the slots, and leads 6 and 8 extend only λg /4 from their related slot. When the slots are alternately excited, energy can be taken out alternately with a πphase difference from both sides of a corresponding patch. The combined value of a waveguide propagation wave and a patch is decided by the measurements of the patch or the connecting point of the patch and a lead.
IPC 1-7
IPC 8 full level
H01Q 21/08 (2006.01); H01Q 13/10 (2006.01); H01Q 13/18 (2006.01); H01Q 13/22 (2006.01); H01Q 21/00 (2006.01)
CPC (source: EP US)
H01Q 13/10 (2013.01 - EP US); H01Q 21/0043 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK ES GB IT SE
DOCDB simple family (publication)
FR 2654555 A1 19910517; FR 2654555 B1 19920619; CA 2029329 A1 19910515; DE 69015608 D1 19950209; DE 69015608 T2 19950511; EP 0439970 A1 19910807; EP 0439970 B1 19941228; JP H03173205 A 19910726; US 5170174 A 19921208
DOCDB simple family (application)
FR 8914896 A 19891114; CA 2029329 A 19901105; DE 69015608 T 19901109; EP 90403194 A 19901109; JP 30229490 A 19901107; US 60345590 A 19901025