Publication:
A 24-31GHz Compact Low-Power Complex Impedance Sensor for Beamforming Transmitters in 22nm FD-SOI
| dc.contributor.author | Wu, Xuepu | |
| dc.contributor.author | Zhang, Yan | |
| dc.contributor.author | Mangraviti, Giovanni | |
| dc.contributor.author | ElKashlan, Rana | |
| dc.contributor.author | Peumans, Dries | |
| dc.contributor.author | Wambacq, Piet | |
| dc.date.accessioned | 2026-01-22T09:21:03Z | |
| dc.date.available | 2026-01-22T09:21:03Z | |
| dc.date.createdwos | 2025-11-11 | |
| dc.date.issued | 2025-01-01 | |
| dc.description.abstract | We present a complex impedance sensor to measure the impedance variations at the output of a (phased-array) transmitter (TX) operating around 28 GHz. Based on complex voltage sensing of the output balun in a transmitter, the envelope detectors and injection-locked ring oscillators (ILRO) split the amplitude and phase sensing of voltages for computing the complex impedance. With a bandwidth spanning from 24 GHz to 31 GHz and an input power dynamic range of 7 dB, this circuit can sense reflection coefficients up to 0.74 with a maximum magnitude error of 0.14 and a maximum phase error of 12.8°. It consumes 8 mW of power and occupies only 0.0043 mm2. | |
| dc.identifier.doi | 10.1109/rfic61188.2025.11082817 | |
| dc.identifier.isbn | 979-8-3315-1412-9 | |
| dc.identifier.issn | 1529-2517 | |
| dc.identifier.uri | https://imec-publications.be/handle/20.500.12860/58696 | |
| dc.language.iso | eng | |
| dc.provenance.editstepuser | greet.vanhoof@imec.be | |
| dc.publisher | IEEE | |
| dc.source.beginpage | 99 | |
| dc.source.conference | 2025 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM, RFIC | |
| dc.source.conferencedate | 2025-06-15 | |
| dc.source.conferencelocation | San Francisco | |
| dc.source.endpage | 102 | |
| dc.source.journal | 2025 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM, RFIC | |
| dc.source.numberofpages | 4 | |
| dc.title | A 24-31GHz Compact Low-Power Complex Impedance Sensor for Beamforming Transmitters in 22nm FD-SOI | |
| dc.type | Proceedings paper | |
| dspace.entity.type | Publication | |
| imec.internal.crawledAt | 2025-11-20 | |
| imec.internal.source | crawler | |
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