A 71-86GHz 1024QAM Direct-Carrier Phase-Modulating Transmitter with Digital-to-Phase Converters and Constant-Envelope Phasors
This paper presents a $71-86 \mathrm{GHz}$ 1024QAM Direct-Carrier Phase-Modulating Transmitter (DCPM-TX), solely by using 9-bit digital-to-phase converters based on digitally-controlled artificial dielectric (DiCAD) transmission lines, and constant-envelope phasor combiners. The prototype DCPM-TX delivers 20Gbps at 1024QAM and 25Gbps at 256QAM across $71-86 \mathrm{GHz}$ with peak $P_{\text {out }}$ over 16dBm while consuming 340mW DC power and $0.675 \mathrm{~mm}^{2}$ core Si area.
Authors
- Jhih-Wei Chen
- Jia Zhou
- Chao-Jen Tien
- Jieqiong Du (ORCID: https://orcid.org/0000-0001-9185-2353)
- Mau-Chung Frank Chang (ORCID: https://orcid.org/0000-0002-2934-9359)
- Sai-Wang Tam (ORCID: https://orcid.org/0009-0008-1036-5931)
- Adrian Tang (ORCID: https://orcid.org/0000-0001-5569-4490)
- Arhison Bharathan
- Christopher S. Chen (ORCID: https://orcid.org/0000-0003-2445-8449)
Institutions
- Jet Propulsion Laboratory (US)
- University of California System (US)
Publication Details
- Published
- 2025-06-15
- DOI
- https://doi.org/10.1109/rfic61188.2025.11082945
- Primary Topic
- Optical Network Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00