High frequency amplifier, and a communication receiver or transc

Details High frequency amplifier, and a communication receiver or transc High frequency amplifier, and a communication receiver or transc

1998-09-15

2000-02-01

Lee, Benny T.

Amplifiers

With semiconductor amplifying device

Including plural stages cascaded

330 98, H03F 304

Patent

active

060207892

ABSTRACT:
Known is a two stage high frequency amplifier preceded by a large amplification gain stage providing a fixed swing signal for the two stage amplifier. Particularly in portable devices such as pagers, and mobile or cordless phones, such a receiver structure consumes much power. An amplifier structure is proposed with a cascade of at least four amplifier stages, alternately resistive feedback amplifier stages and non-resistive amplifier stages. Herewith, a dramatic improvement of the gain-bandwidth product is achieved, for the same static power consumption. The amplifier can be used in a PLL of a synthesizer circuit for a pager, cellular or cordless phone, or any other suitable communication device.

REFERENCES:
patent: 3899746 (1975-08-01), Csicsatka
patent: 5280200 (1994-01-01), Tarng
patent: 5491441 (1996-02-01), Goetschel et al.
patent: 5745009 (1998-04-01), Leroux et al.
Mullard, Transistors in Audio Amplifiers, proceedings of the I. R. E., Australia, p. 28, Jan. 1957.
Morton Cohen and Donald Arany, Subminiature Beacon, Apr. 1, 1957.

Affiliated with

Also associated with

Rating

High frequency amplifier, and a communication receiver or transc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High frequency amplifier, and a communication receiver or transc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency amplifier, and a communication receiver or transc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-940818