Title :
A right/left-handed transmission line with variable phase constant composed of cutoff waveguide with dielectric stubs
Author :
Kubo, Hiroshi ; Sasai, Masahiko ; Sanada, Atsushi
Author_Institution :
Grad. Sch. of Sci. & Eng., Yamaguchi Univ., Ube
Abstract :
A composite right/left-handed waveguide-type transmission line with a variable phase constant is proposed. The transmission line is composed of a cutoff waveguide and short stubs. The phase constant can be changed from -30 deg. to +30 deg. per a unit cell by moving a dielectric in the stubs and the top wall of the stubs mechanically. The phase constant changes continuously because the right-handed mode always exists just above the left-handed frequency band without a band gap.
Keywords :
dielectric waveguides; metamaterials; transmission lines; composite right/left-handed waveguide-type transmission line; cutoff waveguide; dielectric stubs; variable phase constant; Dielectrics; Distributed parameter circuits; Electromagnetic waveguides; Impedance; Microstrip antennas; Photonic band gap; Planar transmission lines; Power transmission lines; Resonant frequency; Transmission lines;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958672
