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Study of Power Amplifier Harmonic Output Termination for two AlGaN/GaN Technologies at K-/Ka-Band

: Samis, Stanislav; Friesicke, Christian; Lozar, Roger; Maier, Thomas; Brueckner, Peter; Quay, Rüdiger; Jacob, Arne


Institute of Electrical and Electronics Engineers -IEEE-:
23rd International Microwave and Radar Conference, MIKON 2020 : October 5-7, 2020, Warsaw, Poland
Piscataway, NJ: IEEE, 2020
ISBN: 978-83-949421-7-5
ISBN: 978-1-7281-5787-0
International Microwave and Radar Conference (MIKON) <23, 2020, Online>
Conference Paper
Fraunhofer IAF ()
gallium nitride; high power amplifier; K-band; Ka-Band; MMICs

The paper investigates experimentally the effect of harmonic terminations on AlGaN/GaN power amplifiers (PA) performance at K-/Ka-band. Two technologies are compared,a 0.25 µm and 0.1 µm process. In both cases, a harmonic termination increases the achievable output power by about 10 % at the expense of bandwidth, whereas the efficiency is improved only in the first one.