Qorvo

GaN Discrete PA Design Using AWR Software
Being able to lay out everything in the Cadence AWR software quickly and correctly and to send it straight to be manufactured has allowed me to complete design cycles in a short time.
Mark Greene
Microwave Design Engineer
Qorvo

GaN Discrete PA Design Using AWR Software

Design Challenge

To create this hybrid discrete power amplifier (PA), Qorvo wanted to provide a highly broadband solution that was inexpensive and had a small footprint, but this made implementing multiple stages a difficult task given size constraints. The designer chose to use a bridged T topology because it allowed him to match the input of a single transistor to 50Ω while minimizing die area. The packaged amplifier needed to demonstrate 5W of output power and 40-50% power-added efficiency (PAE) across the 1 – 2.7GHz range. 

The Solution

Cadence AWR Microwave Office circuit design software was used for the linear simulations, which were matched to imported S-parameter blocks. The Cadence AWR AXIEM 3D planar electromagnetic (EM) analysis was used for the board-level layout and EM simulation of the input and output matches.

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