Title :
Compact Corporate Power DividerUsing Metamaterial NRI-TLCoupled-Line Couplers
Author :
Islam, Rubaiyat ; Eleftheriades, George V.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Toronto, ON
fDate :
7/1/2008 12:00:00 AM
Abstract :
A low-loss, planar and compact metamaterial 1:4 corporate power divider design is presented. The power divider uses a cascade of three microstrip/negative-refractive-index transmission-line coupled-line couplers allowing it to be compact in the longitudinal direction. The fabricated prototype operates at 2.10 GHz and is 11.6 cm wide-designed for feeding a four-element patch antenna array. The 3 dB transmission bandwidth ranges from 0.73 GHz to 0.46 GHz for the various ports with a total insertion loss of 1.1 dB, good phase balance and better than 20 dB isolation among the output ports.
Keywords :
coupled transmission lines; metamaterials; microstrip antenna arrays; microstrip lines; power dividers; refractive index; bandwidth 0.73 GHz to 0.46 GHz; compact metamaterial; corporate power divider; coupled-line couplers; four-element patch antenna array; frequency 2.10 GHz; metamaterial NRI-TL; microstrip transmission-line; negative-refractive-index transmission-line; planar metamaterial; size 11.6 cm; Corporate power divider; coupled-line coupler; feed network; metamaterial; negative-refractive-index transmission-line (NRI–TL);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.924915
