A Nested-Reactance Feedback Power Amplifier for
-Band Applications
A power amplifier (PA) topology is presented that incorporates a feedback network around the transistor to satisfy matching requirements. Circuit parameters can be tuned for small- and large-signal circuit operation. The PA is fabricated in a 120-nm SiGe BiCMOS process and performs from 36 to 41 GHz. The PA achieves a saturated output power of 23 dBm and a peak power-added efficiency of 20% at 38 GHz. This is the highest reported output power from a single PA at Q -band in silicon.
Published in:
Microwave Theory and Techniques, IEEE Transactions on
(Volume:60
,
Issue:
6
)
Date of Publication: June 2012