Power amplifier output module for dual-mode digital systems

Details Power amplifier output module for dual-mode digital systems Power amplifier output module for dual-mode digital systems

1998-06-01

1999-10-26

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

455103, H03F 368, H04B 102

Patent

active

059735686

ABSTRACT:
A power amplifier output module 200 having low insertion loss and self-shielding properties for dual-mode digital systems is provided. Module 200 has a first power amplifier drive circuit comprising a first power amplifier 220 and a first output impedance matching network having integrated suppression of higher order harmonics 222. A second power amplifier drive circuit comprising a second power amplifier 224 and a second output impedance matching network having integrated suppression of higher order harmonics 226 is also provided. Module 200 also comprises a single diplexer 228 coupled to the first impedance matching network and the second impedance matching network. Module 200 also comprises a single broadband directional coupler 230, coupled to the diplexer 228, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. Module 200 provides an integrated solution involving greater performance in a smaller package.

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