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1. WO2000041326 - A RADIO FREQUENCY (RF) SWITCH USING A SINGLE QUARTER WAVE ISOLATING SECTION AND METHOD OF FORMING SAME

Publication Number WO/2000/041326
Publication Date 13.07.2000
International Application No. PCT/US1999/030689
International Filing Date 21.12.1999
Chapter 2 Demand Filed 14.07.2000
IPC
H04B 1/48 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
44Transmit/receive switching
48in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
CPC
H04B 1/48
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
44Transmit/receive switching
48in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
Applicants
  • MOTOROLA INC. [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US
Inventors
  • GRIFFIN, Curtis, M.; US
  • ROLLMAN, Jeff, A.; US
Agents
  • SCUTCH, Frank, M., III ; Motorola Inc. Intellectual Property Dept. 8000 West Sunrise Boulevard Fort Lauderdale, FL 33322, US
Priority Data
09/226,26607.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A RADIO FREQUENCY (RF) SWITCH USING A SINGLE QUARTER WAVE ISOLATING SECTION AND METHOD OF FORMING SAME
(FR) COMMUTATEUR H.F. UTILISANT UNE SEULE SECTION D'ISOLATION QUART D'ONDE ET SON PROCEDE DE FORMATION
Abstract
(EN)
A radio frequency (RF) switch for switching an antenna port between two power amplifier ports and a receive port includes an antenna port (103), a first amplifier port (105), a second amplifier port (107) and one or more diode switches (207, 213, 215) positioned between the first amplifier port (105), second amplifier port (107) and a ground potential. One or more frequency dependent isolation sections (222, 222') are positioned between the first amplifier port (105), second amplifier port (107) and the receive port (109) so that the diode switches (207, 213, 215) are controlled using a respective control input for connecting either the first amplifier port (105), second amplifier port (107) or the receive port (109) to the antenna port (103). The invention uses few component parts and allows switching through the use of only one isolation section per frequency band.
(FR)
L'invention concerne un commutateur H.F. permettant de commuter un port d'antenne situé entre deux port d'antenne (103), un premier port d'amplificateur (105), un second port d'amplificateur (107) et un ou plusieurs commutateurs (207, 213, 215) à diode placés entre le premier port d'amplificateur (105), le second port d'amplificateur (107) et un potentiel de masse. Une ou plusieurs sections d'isolation (222, 222') dépendant de la fréquence sont placées entre le premier port d'amplificateur (105), le second port d'amplificateur (107), et le port de réception (109), de sorte que les commutateurs à diode (207, 213, 215) sont commandés au moyen d'une entrée de commande respective, de façon à connecter le premier port d'amplificateur (105), le second port (107), ou le port de réception (109) avec ledit port d'antenne (103). L'invention utilise quelques parties de composants et permet la commutation par l'intermédiaire d'une seule section d'isolation par bande de fréquence.
Also published as
Latest bibliographic data on file with the International Bureau