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| Authors: | Karine Enze: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden |
| | Jan Grahn: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden |
| | Anders Mellberg: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden |
| | Herbert Zirath: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden |
| | Niklas Rorsman: Chalmers University of Technology, Microwave Electronics Laboratory, Sweden |
| Publication title: | Characterisation of Metamorphic HEMTs for low-noise wideband amplifiers |
| Conference: | GigaHertz 2003. Proceedings from the Seventh Symposium |
| Publication type: | Poster |
| Issue: | 008 |
| Article No.: | 062 |
| Abstract: | Metamorphic HEMTs developed by OMMIC have been DC- and RF-characterized. An extrinsic DC transconductance of 770 mS/mm was obtained for a 4x25µm MHEMT. Typical extrinsic unity current cut-off frequency, fT, was 140 GHz with a maximum oscillation frequency of 196 GHz. Broadband three-stage amplifiers utilizing these transistors were designed fabricated and characterized for various frequency bandwidths up to 90 GHz. For the 26-43 GHz bandwidth, the amplifier exhibited a gain of typically 25 dB and a return loss less than 5 db. |
| Language: | English |
| Year: | 2003 |
| No. of pages: | 4 |
| Series: | Linköping Electronic Conference Proceedings |
| ISSN (print): | 1650-3686 |
| ISSN (online): | 1650-3740 |
| File: | http://www.ep.liu.se/ecp/008/posters/036/ecp00836p.pdf |
| Available: | 2003-11-06 |
| Publisher: | Linköping University Electronic Press, Linköpings universitet |
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