Title :
Analysis of a finite length microstrip/negative-refractive-index coupled-line coupler
Author :
Islam, Rubaiyat ; Eleftheriades, George V.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.
Abstract :
The scattering parameters of finite-length MS/NRI coupled-line couplers are derived analytically using coupled-mode theory. Harnessing this theory, a -25 dB high-directivity planar coupler is designed and tested experimentally having a directivity around 35 dB over a 100 MHz bandwidth centered at 1.75 GHz
Keywords :
S-parameters; UHF antennas; metamaterials; microstrip antennas; microstrip directional couplers; refractive index; 1.75 GHz; 100 MHz; coupled-line coupler; coupled-mode theory; finite length microstrip; high-directivity planar coupler; negative-refractive-index; Attenuation; Bandwidth; Frequency; Metamaterials; Microstrip; Mutual coupling; Propagation constant; Scattering parameters; Strontium; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551539
