Method and system for preventing an amplifier overload condition

Details Method and system for preventing an amplifier overload condition Method and system for preventing an amplifier overload condition

1996-09-04

1998-07-21

Mottola, Steven

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

330207P, H03F 368

Patent

active

057839697

ABSTRACT:
In a hybrid matrix amplifier array (100), the amplitude of each of a plurality of input signals is measured (132-136, 202). In response to the signal amplitude measurements, an overload condition that will result in an amplifier overload in said hybrid matrix amplifier array is estimated (204, 206, 138). In response to the estimation of the overload condition, the signal amplitude of at least one of the plurality of input signals is modified to prevent the overload condition in the hybrid matrix amplifier array. An overload condition may be estimated if the sum of the amplitudes of the input signals exceeds a threshold (206). In one embodiment, all input signals are modified by proportionately reducing the amplitude of each of the plurality of input signals (304).

REFERENCES:
patent: 3732217 (1973-05-01), Gerset et al.
patent: 5604462 (1997-02-01), Gans et al.
patent: 5610556 (1997-03-01), Rubin
patent: 5638024 (1997-06-01), Dent et al.
Sandrin, W.A., "The Butler Matrix Transponder", Comstat Technical Review, vol. 4, No. 2, Fall 1974, pp. 319-344.
Meredith, Sheldon, presentation on Cellwave Smart System at "Second Annual Workshop on Smart Antennas in Wireless Mobile Communications", Jul. 20-21, 1995, Stanford University.
Gerst, Carl. W., "Hybrid Matrix Amplifiers", An Anaren White Paper, Nov. 1995.

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