Amplifiers – Combined with automatic amplifier disabling switch means
Patent
1997-10-30
2000-10-03
Pascal, Robert
Amplifiers
Combined with automatic amplifier disabling switch means
330302, H03F 114
Patent
active
061278866
ABSTRACT:
A switched amplifying device for use in a wireless telecommunications receiver as an amplifier of an RF signal has an amplifying device electrically connected in parallel with a switch. The switched amplifying device has a bypass mode in which an electrical path of the RF signal bypasses the amplifying device and is connected to an RF output port. The switched amplifying device also has a amplification mode in which, the electrical path of the RF signal flows through the amplifying device prior to presentation of the RF signal at the RF output. In the bypass mode, the amplification device is in an off state. Similarly, in the amplification mode, the bypass device is in an off state. Use of the switched amplifying device according to the teachings of the present invention in a receiver permits accommodation of a larger dynamic range in amplitude of received signal with less signal degradation and noise figure than in prior art amplification devices.
REFERENCES:
patent: 5008631 (1991-04-01), Scherer et al.
patent: 5023569 (1991-06-01), Raven
patent: 5175871 (1992-12-01), Kunkel
patent: 5363064 (1994-11-01), Mikamura
patent: 5507023 (1996-04-01), Suganuma et al.
patent: 5530402 (1996-06-01), Wright
patent: 5548246 (1996-08-01), Yamamoto et al.
patent: 5570064 (1996-10-01), Sugawara
patent: 5627857 (1997-05-01), Wilson
patent: 5642074 (1997-06-01), Ghaffaripour et al.
patent: 5661434 (1997-08-01), Brozovich et al.
patent: 5661437 (1997-08-01), Nishikawa et al.
patent: 5751189 (1998-05-01), Shyu et al.
patent: 5764103 (1998-06-01), Burra et al.
patent: 5774017 (1998-06-01), Adar
patent: 5905643 (1999-06-01), Aihara
M. Cardullo et al., Transmitter Chips For Use In A Dual-Mode AMPS/CDMA Chip Set, Microwave Journal, Mar. 1996, pp. 60-72.
Harrington Kevin
Khabbaz Brian
Murphy Michael T.
Struble Wayne Mack
Nguyen Khanh Van
Pascal Robert
The Whitaker Corporation
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