frequency multiplier

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A 436–472 GHz 4-Element IF Beamforming Phased-Array Receiver in 65-nm CMOS

A 436–472 GHz 4-Element IF Beamforming Phased-Array Receiver in 65-nm CMOS 150 150
Author(s): Hao Guo, Hao-Tao Hu, Zhicheng Lin, Zijun Guo, Xiaoyue Xia, Kaizhe Guo, Kam Man Shum, Pui-In Mak, Chi Hou Chan

Abstract:

This article presents a 436–472GHz four-element intermediate-frequency (IF) beamforming phased-array receiver fabricated in 65-nm CMOS, targeting scalable terahertz (THz) phased-array systems. The proposed receiver adopts a two-step mixing scheme to reduce the area overhead of the IF beamforming implementation, thereby enhancing the array scalability at THz frequencies. Each receive channel …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3710258
Publisher: IEEE

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A Wideband Digitally Assisted Frequency Tripler With Adaptively Optimized Output Power in 55-nm SiGe BiCMOS

A Wideband Digitally Assisted Frequency Tripler With Adaptively Optimized Output Power in 55-nm SiGe BiCMOS 150 150
Author(s): Daniele Lodi Rizzini, Francesco Tesolin, Michele Rossoni, Riccardo Moleri, Filippo Osio, Andrea Mazzanti, Andrea L. Lacaita, Simone M. Dartizio, Salvatore Levantino

Abstract:

This article presents a 28–38-GHz frequency tripler implemented in 55-nm SiGe BiCMOS technology with a novel on-chip background calibration technique. This technique continuously optimizes the circuit performance by maximizing output power and improving fundamental harmonic rejection. The proposed tripler achieves wideband operation and robust performance across varying operating conditions and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1844 – 1859
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3666591
Publisher: IEEE

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