BROWSE
Detail
Journal Article
275 GHz Quadrature Receivers for THz-Band 6G Indoor Network in 130-nm SiGe Technology
- Authors
- Jeong-Moon Song, Van-Son Trinh, Sooyeon Kim, Jung-Dong Park
- Issue Date
- 2023-12
- Citation
- IEEE Access, v.11, pp.138540-138548
- ISSN
- 2169-3536
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Language
- English
- Type
- Journal Article
- Abstract
- We report two 275-GHz quadrature receivers (Rx’s) with mixer-first and LNA-first architectures in a 130-nm SiGe BiCMOS process. Both quadrature Rx’s contain I and Q mixers implemented with a modified Gilbert-cell mixer with swapped RF and local oscillation (LO) ports to downconvert the RF signal at 260–290 GHz to the I and Q intermediate frequency (IF) bands at 0.1–30GHz. For a cost-effective solution, a compact 260GHz quadrature LO chain is integrated with a compact frequency tripler with an E-band driving amplifier (DA), a 260-GHz DA, and a differential hybrid coupler to generate the quadrature LO signals for I and Q mixers. Comprised of a push-push doubler cascaded with a single-balanced mixer, the frequency tripler was employed to isolate the LO harmonic leakages from the IF band. A wideband IF amplifier was used for an aimed conversion gain higher than 20 dB in each channel. In the measurement, the implemented mixer-first and LNA-first Rx’s achieved a minimum single-sideband (SSB) noise figure (NF) of 22.3 and 21 dB, a peak gain of 21.4 and 27.5 dB with an IF bandwidth of 30 GHz. The amplitude and phase imbalances between the I and Q channels of the mixer-first Rx were measured around 1 dB and 4°. The fabricated mixer-firs and LNA-first chips occupy a whole area of 1.418 and 2.030 mm2, and consume a DC power of 434 and 490 mW, respectively.
- KSP Keywords
- 130-nm SiGe BiCMOS, 30 GHz, 5 GHz, 60 GHz, Conversion gain, Dc power, Driving amplifier, Frequency tripler, Gilbert-cell, Hybrid coupler, IF amplifier
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
