Title :
Tailoring double negative metamaterial responses to achieve anomalous propagation effects along microstrip transmission lines
Author :
Ziolkowski, R.W. ; Ching-Ying Cheng
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
Several double negative (DNG) metamaterials, artificial materials with simultaneous negative permittivity and permeability, have been fabricated and tested experimentally at X-band frequencies. These include a negative index of refraction slab matched to free space and a perfect magnetic conducting slab. The basic concepts of propagation in DNG metamaterials, their designs and experimental verifications will be reviewed. These DNG metamaterials may indeed be very suitable for a variety of electromagnetic applications dealing with guided wave environments, sensors, and antennas. The use of a DNG metamaterial to tailor the propagation characteristics of a microstrip transmission line will be described in detail. It will be demonstrated that a DNG-loaded microstrip transmission line segment that exhibits a negative index of refraction can be matched to an ordinary microstrip fine.
Keywords :
microstrip lines; permittivity; refractive index; waveguide theory; X-band frequencies; anomalous propagation effects; double negative metamaterial responses; electromagnetic applications; guided wave environments; microstrip transmission line; microstrip transmission lines; negative permeability; negative permittivity; perfect magnetic conducting slab; propagation characteristics; Conducting materials; Electromagnetic propagation; Electromagnetic refraction; Magnetic materials; Metamaterials; Microstrip; Permeability; Permittivity; Slabs; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210916
