HIGH-EFFICIENCY RF AMPLIFIER AND ENVELOPE MODULATOR

Title:

HIGH-EFFICIENCY RF AMPLIFIER AND ENVELOPE MODULATOR

Document Type and Number:

WIPO Patent Application WO2006093984

Kind Code:

A3

Abstract:

An RFID reader, comprising a high-efficiency Class-C power amplifier having an input, an output, and a supply voltage, a modulator coupled to the supply voltage of the Class-C power amplifier, and an RF carrier signal coupled to the input of the Class-C power amplifier. The modulator changes the supply voltage of the Class-C power amplifier resulting in highly controlled amplitude modulation of the RF carrier signal at the output of the Class-C power amplifier.

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Inventors:

D HONT LOEK J (US)
BARINK BERNARD (US)

Application Number:

PCT/US2006/007129

Publication Date:

November 30, 2006

Filing Date:

February 28, 2006

Export Citation:

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Assignee:

SIRIT TECHNOLOGIES INC (CA)
D HONT LOEK J (US)
BARINK BERNARD (US)

International Classes:

G06K7/00

Domestic Patent References:

WO1991007736A1

1991-05-30

Foreign References:

EP0382695A2

1990-08-16

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