A 36-40 GHz full 360° ultra-low phase error passive phase shifter with a novel phase compensation technique
Journal
European Microwave Week 2017: "A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 14th European Microwave Conference, EURAD 2017
Journal Volume
2018-January
Pages
397-400
Date Issued
2018
Author(s)
Abstract
A 36-40 GHz full 360° ultra-low phase error passive phase shifter with a novel phase compensation technique is presented in this paper. The proposed phase shifter consists of a four-way quadrature power divider as a vector generator, vector selector and two digital controlled artificial dielectric (DiCAD) phase shifter cells to achieve 4-bit (22.5° phase resolution) and full 360° synthesizing. DiCAD phase shifter cells not only provide 22.5° and 45° phase shifts but can also compensate the phase error due to its tuning mechanism. The measured RMS phase and gain error are under 2.6° and 2.6 dB over 36-40 GHz, respectively. The average insertion gain is about -20.2 dB with no dc consumption. Implemented in 90-nm CMOS, the chip size is 0.75 × 0.4 mm 2 without pads. To the authors' knowledge, this phase shifter demonstrates the lowest RMS phase error among other reported millimeter-wave phase shifters.
SDGs
Type
conference paper