skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A compact frequency tunable radio frequency phase shifter with patterned Py enabled transmission line

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4917509· OSTI ID:1239562

A well designed frequency tunable phase shifter using patterned Py with different thickness has been demonstrated. Phase shifter is implemented with a slow wave coplanar wave guide (CPW)transmission line, where the signal line has alternate short narrow and wide sections. Py is patterned on the top of narrow section for high inductance density, and inter-digital capacitor is implemented in wide section for high capacitance density. Compared with phase shifter using regular CPW, the dimension of the developed phase shifter has been reduced from 14.86 mm to4.70 mm at 2 GHz. Phase shifter based on 100 nm and 200 nm thick patterned Py with the same dimensions (14lm10lm) are implemented and investigated comprehensively. FMR frequency of 3.2 GHz and 3.6 GHz without any external magnetic field has been achieved for100 nm and 200 nm thick Py film, respectively. Thicker Py has increased inductance density from 1067.2 nH/m to 1193.2 nH/m while the center frequency of the phase shifter has been shifted to 1.80 GHz. Frequency tunability of the phase shifter has been also demonstrated withDC current. The phase shifter can provide 90phase shift continuously from 2 GHz to 1.80 GHz with DC current from 0 mA to 150 mA. As a result, the design concept has great potential in design arbitrary tunable RF components such as filters and couplers.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; 1253929
OSTI ID:
1239562
Journal Information:
Journal of Applied Physics, Vol. 117, Issue 17; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (14)

K-band 3-bit low-loss distributed MEMS phase shifter journal October 2000
Low-loss distributed MEMS phase shifter journal January 2000
Varactor-loaded transmission-line phase shifter at C -band using lumped elements journal April 2003
Ultra compact, low loss, varactor tuned phase shifter MMIC at C-band journal March 2001
S-parameter-based IC interconnect transmission line characterization journal January 1992
Direct current tunable noise suppressor using sub-micrometer patterned permalloy films journal May 2014
Patterned Permalloy and Barium Strontium Titanate Thin Film Enabled Tunable Slow Wave Elements for Compact Multi-Band RF Applications journal July 2013
Distributed 2- and 3-Bit>tex<$W$>/tex<-Band MEMS Phase Shifters on Glass Substrates journal February 2004
Pumping-field-induced dynamic effects in micron-sized permalloy lines and their influence on HF filter applications journal October 2005
X-band RF MEMS phase shifters for phased array applications journal January 1999
Diode Phase Shifters for Array Antennas journal June 1974
A SiGe MMIC 6-bit PIN diode phase shifter journal December 2002
Tunable Transmission Line With Nanopatterned Thin Films for Smart RF Applications journal November 2014
Demagnetizing factors for rectangular ferromagnetic prisms journal March 1998

Similar Records

Tunable Transmission Line With Nanopatterned Thin Films for Smart RF Applications
Journal Article · Sat Nov 01 00:00:00 EDT 2014 · IEEE Transactions on Magnetics · OSTI ID:1239562

Application of sub-micrometer patterned permalloy thin film in tunable radio frequency inductors
Journal Article · Tue Apr 21 00:00:00 EDT 2015 · Journal of Applied Physics · OSTI ID:1239562

Novel Electrically Tunable Microwave Solenoid Inductor and Compact Phase Shifter Utilizing Permaloy and PZT Thin Films
Journal Article · Thu Aug 03 00:00:00 EDT 2017 · IEEE Transactions on Microwave Theory and Techniques · OSTI ID:1239562

Related Subjects