Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Compact and Broadband Millimeter-Wave Electrically Tunable Phase Shifter Combining Slow-Wave Effect With Liquid Crystal Technology

Full text
Author(s):
Franc, Anne-Laure [1, 2] ; Karabey, Onur Hamza [3] ; Rehder, Gustavo [4] ; Pistono, Emmanuel [1, 2] ; Jakoby, Rolf [3] ; Ferrari, Philippe [1, 2]
Total Authors: 6
Affiliation:
[1] Univ Grenoble Alpes, Inst Microelect Electromagnetisme & Photon, UMR 5130, CNRS, F-38016 Grenoble - France
[2] Univ Grenoble Alpes, Lab Hyperfrequences & Caracterisat IMEP LAHC, UMR 5130, CNRS, F-38016 Grenoble - France
[3] Tech Univ Darmstadt, Inst Microwave Technol & Photon IMP, D-64283 Darmstadt - Germany
[4] Univ Sao Paulo, Lab Microelect LME, BR-05508010 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: IEEE Transactions on Microwave Theory and Techniques; v. 61, n. 11, p. 3905-3915, NOV 2013.
Web of Science Citations: 20
Abstract

Based on a CMOS slow-wave coplanar-waveguide transmission-line topology, a novel compact millimeter-wave phase shifter is presented. The tunability is accomplished by using a liquid crystal (LC) material as a tunable dielectric between the coplanar signal strip and the shielding plane of the slow-wave transmission line. The device tunability is considerably enhanced by moving the free-standing signal strip with the application of a bias voltage. Combining the miniaturizing benefits of the slow-wave effect with the continuous tuning of LC material, the proposed device occupies only 0.38 mm(2) and exhibits high performance. The phase shifter was characterized up to 45 GHz for a maximum bias voltage of 20 V without significant power consumption. The reproducible measurements show a figure-of-merit (ratio between the maximum phase shift and the maximum insertion loss) of 51 degrees/dB at 45 GHz. (AU)

FAPESP's process: 11/18167-3 - RF MEMS for millimetric waves using commercial CMOS process
Grantee:Gustavo Pamplona Rehder
Support Opportunities: Research Grants - Young Investigators Grants