EP 0660983 A4 20000913 - METHOD AND APPARATUS FOR SEPARATING CHANNELS FROM A RADIO FREQUENCY TRANSMITTER
Title (en)
METHOD AND APPARATUS FOR SEPARATING CHANNELS FROM A RADIO FREQUENCY TRANSMITTER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KANALTRENNUNG EINES HOCHFREQUENZSENDERS
Title (fr)
PROCEDE ET APPAREIL PERMETTANT D'ESPACER LES CANAUX D'UN POSTE DE RADIOTRANSMISSION
Publication
Application
Priority
- US 9403007 W 19940322
- US 5110193 A 19930421
Abstract (en)
[origin: WO9424772A1] A method and apparatus are provided for separating spectrally diverse radio frequency signals. The apparatus includes means, within a signal transfer module (23), for transferring an input signal received at a first port of the signal transfer module (23) to a second port of the signal transfer module. At least one frequency selective assembly (37, 24) is included, interconnected with the second port of the signal transfer module, presenting a characteristic impedance to a desired signal of the input signal and reflecting of their signals of the input signal to the second port of the frequency transfer module. A means, within the signal transfer module for transferring a reflected signal received at the second port of the signal transfer module to a third port of the signal transfer module is also included. A first antenna (31) is interconnected with the frequency selective cavity assembly for transmission of the desired signal. A second antenna (30) is interconnected with the third port of the signal transfer module for transmission of the other signals. The method of practising the invention is also provided.
IPC 1-7
IPC 8 full level
H01P 1/213 (2006.01); H04B 1/04 (2006.01); H04B 7/26 (2006.01); H04J 1/08 (2006.01)
CPC (source: EP KR)
H01P 1/2138 (2013.01 - EP); H04B 1/02 (2013.01 - KR); H04B 1/0483 (2013.01 - EP)
Citation (search report)
- [A] EP 0399206 A1 19901128 - MOTOROLA INC [US]
- See references of WO 9424772A1
Designated contracting state (EPC)
GB
DOCDB simple family (publication)
WO 9424772 A1 19941027; CA 2136443 A1 19941027; EP 0660983 A1 19950705; EP 0660983 A4 20000913; JP H07508391 A 19950914; KR 950702355 A 19950619
DOCDB simple family (application)
US 9403007 W 19940322; CA 2136443 A 19940322; EP 94913925 A 19940322; JP 52319394 A 19940322; KR 19940704671 A 19941221