—Ferromagnetic nanowires (FMNW) in porous alumina template are excellent candidates for monolithic integrated microwave devices that can be tuned by material properties and also by externally applied magnetic field. We designed, fabricated and characterized coplanar waveguide (CPW) structures on FMNW substrates. Ni and Co nanowires are grown by electrodeposition method and their surface morphology is determined using scanning electron microscope. We observed that operational frequency of Ni nanowire based band stop filter increases linearly with applied magnetic field and has very wide frequency tunability. Complex microwave permeability is calculated from the observed transmission response.
—Ferromagnetic resonance, nanowires, coplanar waveguide, s-parameters.
Monika Sharma, Manish Sharma, and Ananjan Basu are with Centre for Applied Research in Electronics, Indian Institute of Technology Delhi, India (e-mail: email@example.com, firstname.lastname@example.org, email@example.com). Bijoy K. Kuanr is with University of Delhi, India (e-mail: firstname.lastname@example.org).
Cite:Monika Sharma, Bijoy K. Kuanr, Manish Sharma, and Ananjan Basu, "Tunable Coplanar Waveguide Microwave Devices on Ferromagnetic Nanowires," International Journal of Materials, Mechanics and Manufacturing vol. 2, no. 1, pp. 9-13, 2014.