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A 50 to 146 GHz power amplifier based on magnetic transformers and distributed gain cells

: Pahl, P.; Wagner, S.; Massler, H.; Diebold, S.; Leuther, A.; Kallfass, I.; Zwick, T.


IEEE microwave and wireless components letters 25 (2015), Nr.9, S.615-617
ISSN: 1051-8207
ISSN: 1531-1309
Fraunhofer IAF ()
broadband amplifiers; broadband matching networks; broadband MMIC; microwave and millimeter-wave circuits; millimeter-wave power amplification; transformers

A monolithic millimeter-wave integrated circuit power amplifier covering the entire V-, W- and F-band is presented. The amplifier applies magnetic distributed transformers in combination with traveling wave gain cells to achieve a - 3dB bandwidth that spans from 50 to 146 GHz, 12 dB gain and a maximum measured output power of 15 dBm. With a relative bandwidth of 98.3% the PA achieves the highest bandwidth reported for power amplifiers operating at around 100 GHz to date.