Analysis and Design of Wide-Band SiGe HBT Active Mixers
Publication: Research - peer-review › Journal article – Annual report year: 2005
The frequency response of SiGe HBT active mixers based on the Gilbert cell topology is analyzed theoretically. The time-varying operation of the active mixer is taken into account by applying conversion matrix analysis. The main bandwidth-limiting mechanisms experienced in SiGe HBT active mixers performing frequency conversion of wide-band signals is discussed. The analysis is verified by computer simulations using a realistic high-frequency large-signal SiGe HBT model. An active mixer design based on the Gilbert cell topology modified for wide-band operation using emitter degenerated transconductance stage and shunt feedback load stage is discussed. Experimental results are given for an active mixer implemented in a 0.8-μm 35-GHz fT SiGe HBT BiCMOS process.
| Original language | English |
|---|---|
| Journal | I E E E Transactions on Microwave Theory and Techniques |
| Publication date | 2005 |
| Volume | 53 |
| Journal number | 7 |
| Pages | 2389-2397 |
| ISSN | 0018-9480 |
| DOIs | |
| State | Published |
Bibliographical note
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| Citations | Web of Science® Times Cited: 7 |
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