Reconfigurable broadband active power splitter ditto power...

Details Reconfigurable broadband active power splitter ditto power... Reconfigurable broadband active power splitter ditto power...

2005-05-31

2005-05-31

Le, Dinh T. (Department: 2816)

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

C330S054000, C330S286000

Reexamination Certificate

active

06900695

ABSTRACT:
A distribution network which can be an active power splitter or an active power combiner or alternatingly power splitter and such a power combiner. The power splitter consists of two distributed amplifiers with a common input and one output each, and the power combiner consists of two distributed amplifiers with one input each and a common output. For the power splitter, a switching element is connected between each connection point on the outputs of the amplifying elements and ground, and for said power combiner, a switching element is connected between each connection point on the inputs of the amplifying elements and ground, the switching elements being optimised to take, depending on a control voltage, one of two distinct states. A first state corresponding to a capacitance and a second state corresponding to a low impedance short circuit. This implies that when the control voltage is high for a distributed amplifier, this amplifier transmits power, and, when the control voltage is low for a distributed amplifier, this amplifier does not transmit power. The invention also relates to a multifunctional broadband electronically steered phased array system comprising at least one power splitter or power combiner as stated above.

REFERENCES:
patent: 4973918 (1990-11-01), Schindler
patent: 5027084 (1991-06-01), Tsukii
patent: 5361038 (1994-11-01), Allen et al.
patent: 5504745 (1996-04-01), Petz et al.
patent: 2 759 508 (1998-08-01), None

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