학술논문

An 8-Watt 3.5 GHz power amplifier with tunable matching
Document Type
Conference
Source
24th Annual Technical Digest Gallium Arsenide Integrated Circuit (GaAs IC) Symposiu Gallium arsenide integrated circuit symposium Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2002. 24th Annual Technical Digest. :185-188 2002
Subject
Engineered Materials, Dielectrics and Plasmas
Components, Circuits, Devices and Systems
Power amplifiers
MMICs
Impedance matching
High power amplifiers
Power generation
PHEMTs
Predictive models
Bandwidth
Bonding
Wires
Language
ISSN
1064-7775
Abstract
A high power 3-stage, S-band power amplifier MMIC implemented with a partially matched output stage is presented. This MMIC PA achieves 39 dBm output power and greater than 25% power added efficiency using 0.6 /spl mu/m PHEMT technology. Small-signal performance matches very well with modeled predictions. The amplifier is exceptionally stable under varying loads, has a bandwidth of several 100 MHz and is easily matched and tuned about the 3.5 GHz band with a simple output matching technique using chip caps, bond wires and duroid transmission lines.