Abstract
This paper presents a compact broadband millimeter-wave Marchand balun, realized using indium phosphide (InP) transferred substrate (TS) technology. The architecture of this balun is based on a folded-type Marchand balun, modified using a compensating transmission line. The core area of the balun is 0.35 × 0.16 mm2 for operation at W-band. The measured results show a corrected insertion loss of less than 7.5 dB and a return loss better than 10 dB in the frequency range from 70 to 110 GHz. Amplitude and phase imbalance remain below 2 dB and 2.5 degrees, respectively, over a 40 GHz bandwidth. To the authors' knowledge, this is the highest RF center frequency published so far for a broadband Marchand type balun with low phase and magnitude imbalance.
| Original language | English |
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| Title of host publication | Proceedings of the 2020 German Microwave Conference |
| Publisher | IEEE |
| Publication date | Mar 2020 |
| Pages | 60-63 |
| Article number | 9080193 |
| ISBN (Electronic) | 9783982039718 |
| Publication status | Published - Mar 2020 |
| Event | 2020 German Microwave Conference - Brandenburg University of Technology Cottbus-Senftenberg , Cottbus, Germany Duration: 9 Mar 2020 → 11 Mar 2020 |
Conference
| Conference | 2020 German Microwave Conference |
|---|---|
| Location | Brandenburg University of Technology Cottbus-Senftenberg |
| Country/Territory | Germany |
| City | Cottbus |
| Period | 09/03/2020 → 11/03/2020 |
Keywords
- Balun
- Indium phosphide (InP)
- Millimeterwave
- MMIC
- Transferred-substrate technology