Title :
Backward couplers using coupled composite right/left-handed transmission lines
Author :
Mocanu, Iulia Andreea ; Militaru, Nicolae ; Lojewski, George ; Petrescu, Teodor ; Banciu, Marian Gabriel
Author_Institution :
Telecommun. Dept., Univ. Politeh. of Bucharest, Bucharest, Romania
Abstract :
A new asymmetric backward coupler is obtained by edge-coupling two types of composite right/left handed (CRLH) lines. This novel coupler is analyzed in a microwave range (1-10 GHz) and the magnitude of the scattering parameters reveals tight coupling effects (even 0 dB) in a dual frequency band and also very good directivity in the working band.
Keywords :
S-parameters; coupled transmission lines; electromagnetic coupling; metamaterials; microstrip couplers; microstrip lines; asymmetric backward coupler; coupled composite left-handed transmission lines; coupled composite right-handed transmission lines; dual frequency band; edge-coupling; frequency 1 GHz to 10 GHz; microstrip CRLH line; scattering parameters; tight coupling effects; Couplers; Dielectric constant; Dielectric losses; Dielectric substrates; Electromagnetic coupling; Frequency; Inductors; Microstrip; Scattering parameters; Transmission lines; dual band; metamaterials; microwave applications; new asymmetric backward coupler; tight coupling;
Conference_Titel :
Communications (COMM), 2010 8th International Conference on
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-6360-2
DOI :
10.1109/ICCOMM.2010.5509033
