L-Band 180 degree passive phase shifter employing auto-tranformer in an SOS process

Summary, in English

In this paper, we present a new topology to implement a passive 180° phase shifter using on-chip auto-transformer in an SOS process. The measured results indicate a phase variation of less than 2° over the frequency range of 1.8-2.4GHz. An insertion loss of 2.3dB was measured at 2.1GHz. The phase shifter has a small footprint of 0.3 × 0.7mm2, which is almost three times less than a traditional high-pass/low-pass design. Post-layout simulations indicate similar performance in terms of bandwidth, phase accuracy and insertion loss for both circuits. Stacked switches are used to increase the power handling to +20dBm.

• Author: Robabeh Amirkhanzadeh; Henrik Sjöland; Jean-Michel Redoute; Dan Nobbe; Mike Faulkner
• Department/s: Department of Electrical and Information Technology; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2014
• Language: English
• Pages: 333-336
• Publication/Series: Proc. of International Symposium on Circuits and systems (ISCAS)
• Links: http://dx.doi.org/10.1109/ISCAS.2014.6865133
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: IEEE International Symposium on Circuits and Systems (ISCAS), 2014
• Conference date: 2014-06-01 - 2014-06-05
• Conference place: Melbourne, Australia
• Status: Published
• Research group: Analog RF
• ISBN/ISSN/Other: ISBN: 978-1-4799-3431-7