EP 0235565 B1 19901128 - THREE-PORT POLARIZATION AND FREQUENCY-DUPLEXING DEVICE
Title (en)
THREE-PORT POLARIZATION AND FREQUENCY-DUPLEXING DEVICE
Publication
Application
Priority
FR 8601160 A 19860128
Abstract (en)
[origin: US4837531A] A three-access polarization and frequency duplexing device has in series a common circular waveguide for passing two polarizations of a wave within a low-frequency band and one polarizations of a wave within a high-frequency band, a first access waveguide which opens into the common waveguide and a transition, a secondary rectangular waveguide. The narrow sides of the secondary waveguide are parallel to one polarization of the low-frequency band and the broad sides are parallel to the polarization of the high-frequency band. A second access waveguide is connected to the secondary waveguide at right angles and coupled by a resonant slot. A short-circuit plate performs a short-circuiting function for the high-frequency portion of the wave of the high-frequency band aligned with the second access waveguide. The free end of the secondary waveguide being forms a third access waveguide. The first access waveguide has a filter for selecting a polarization of the wave from the low-frequency band. The second access waveguide is at right angles to the broad side of the secondary guide.
IPC 1-7
IPC 8 full level
H01P 1/161 (2006.01); H01P 1/213 (2006.01)
CPC (source: EP US)
H01P 1/161 (2013.01 - EP US); H01P 1/2131 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
FR 2593644 A1 19870731; FR 2593644 B1 19880311; CA 1257666 A 19890718; DE 3766383 D1 19910110; EP 0235565 A1 19870909; EP 0235565 B1 19901128; ES 2018791 B3 19910516; US 4837531 A 19890606
DOCDB simple family (application)
FR 8601160 A 19860128; CA 528368 A 19870128; DE 3766383 T 19870127; EP 87101095 A 19870127; ES 87101095 T 19870127; US 786387 A 19870128