Conference paper
High output power ultra-wideband distributed amplifier in InP DHBT technology using diamond heat spreader
This work reports on a highly linear and high output power ultra-wideband distributed amplifier with improved thermal properties using a diamond layer for heat spreading. The performances of a circuit with and without the diamond heat spreader are compared. Adding the diamond yields a 4 dB improvement in 1 dB compression point (P1dB) and saturated output power (Psat).
Intermodulation distortion has also been measured and the amplifier achieves 24 dBm OIP3 over a bandwidth larger than 60 GHz. In terms of small-signal characteristics, the circuit shows 12 dB gain and low deviation from linear phase, similarly to the non-diamond version. This amplifier demonstrates highest P1dB, OIP3, and PAE values as compared to other technologies with similar or higher bandwidth.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2020 |
| Pages: | 401-404 |
| Proceedings: | 2020 IEEE/MTT-S International Microwave Symposium |
| Series: | I E E E - M T T S International Microwave Symposium. Digest |
| ISBN: | 1728168155 , 1728168163 , 9781728168159 and 9781728168166 |
| ISSN: | 0149645x and 25767216 |
| Types: | Conference paper |
| DOI: | 10.1109/IMS30576.2020.9223893 |
| ORCIDs: | Johansen, Tom Keinicke |
Distributed amplifier InP double heterojunction bipolar transistor (DHBT) Monolithic microwave integrated circuit (MMIC) Travelling wave amplifier
Bandwidth C DHBT technology Distributed amplifiers III-V semiconductors InP Microwave circuits Microwave communication Microwave integrated circuits Optical variables measurement Power amplifiers bipolar MIMIC diamond diamond heat spreader distributed amplifier distributed amplifiers gain 12.0 dB heat sinks heterojunction bipolar transistors high output power distributed amplifier highly linear distributed amplifier indium compounds intermodulation distortion millimetre wave power amplifiers monolithic microwave integrated circuit (MMIC) small-signal characteristics travelling wave amplifier ultrawideband distributed amplifier wideband amplifiers
