Patent ID: 8180303
Filing Date: 2012-05-15
Classification: H03F

Abstract:
1. A power amplifier system for amplifying an RF signal, comprising: an input port configured to receive an input RF signal; a power divider including an input transmission line coupled to the input port and configured to receive the input RF signal and including output branch transmission lines coupled to the input transmission line and configured to split the received input RF signal into branch RF signals that are respectively carried by the output branch transmission lines; power amplifiers that are coupled to the output branch transmission lines of the power divider, respectively, a respective power amplifier configured to receive and to amplify a respective branch RF signal to produce an amplified branch RF signal; and a power combiner including input branch transmission lines that are respectively coupled to the power amplifiers and configured to receive amplified branch RF signals produced by the power amplifiers and including an output transmission line coupled to the input branch transmission lines and configured to combine the received amplified branch RF signals into a combined output RF signal, wherein at least one of the power divider and the power combiner includes a Composite Right and Left Handed (CRLH) Metamaterial (MTM) structure.