By Topic

Effect of shape anisotropy on stop-band response of Fe and permalloy based tunable microstrip filters

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Kuanr, Bijoy ; Center for Magnetism & Magnetic Nanostructures, Univ. of Colorado, Colorado Springs, CO, USA ; Camley, R.E. ; Celinski, Z.

The magnetic/dielectric hybrid transmission line structures provide a new class of microwave/millimeter wave devices, useful for signal processing. Reduction of device dimensions in these magnetic monolithic microwave integrated circuits (M-MMICs) is important from the cost and reliability point of view. Here, we explore the transmission characteristics of Fe and Permalloy based microstrip filters with microstrips of different widths, lengths, and thicknesses. The gyromagnetic resonance occurs at microwave frequencies of up to 12 GHz for Fe and 5 GHz for Permalloy, even in the absence of any dc magnetic field. The resulting absorption yields the stop-band behavior of the device. Our microstrip geometry significantly boosts the operational frequency due to an induced shape-anisotropy. Different geometries induce different demagnetization factors and hence different resonance frequencies. We calculate the frequency-boosting characteristics of the devices due to induced shape-anisotropy and observed a good match to our measurements.

Published in:

Magnetics, IEEE Transactions on  (Volume:40 ,  Issue: 4 )