Abstract
A low-power, broadband Ka to W-band active quasi-circulator is demonstrated in a commercial GaAs process. To the author's knowledge, its 40-100 GHz bandwidth is the broadest reported to date. In addition, a novel technique is introduced to conveniently study the effect of phased array antenna impedance variation, e.g. due to changing scan angle during radar tracking, on the circulator's performance. It is shown that improved system performance can be obtained by centring antenna impedance away from 50Ω.
| Original language | English |
|---|---|
| Title of host publication | 2025 20th European Microwave Integrated Circuits Conference proceedings |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 190-193 |
| Number of pages | 4 |
| ISBN (Electronic) | 9782874870828 |
| ISBN (Print) | 9798331512675 |
| DOIs | |
| Publication status | Published - 2025 |
| Event | 20th European Microwave Integrated Circuits Conference, EuMIC 2025 - Utrecht, Netherlands Duration: 22 Sept 2025 → 23 Sept 2025 |
Conference
| Conference | 20th European Microwave Integrated Circuits Conference, EuMIC 2025 |
|---|---|
| Country/Territory | Netherlands |
| City | Utrecht |
| Period | 22/09/25 → 23/09/25 |
Keywords
- GaAs
- MMIC
- active circulator
- Ka-band
- W-band
- mm-wave
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