Title :
Design of 0-dB reconfigurable directional coupler using metamaterial structure
Author :
Munina, Irina ; Vendik, Irina ; Crnojevic-Bengin, V.
Author_Institution :
Dept. of Microelectron. & radio Eng., St.-Petersburg Electrotech. Univ., St. Petersburg, Russia
Abstract :
0-dB coupled-line directional coupler exhibiting forward and backward coupling characteristics is designed on a combination of split-ring and mushroom-shaped resonators embedded in coupled line structure. Adding tunable varactors in the gap of split-ring resonator makes it possible to change the type of coupling of the directional coupler at the same frequency and design the 0-dB reconfigurable directional coupler on the proposed metamaterial structure.
Keywords :
optical design techniques; optical directional couplers; optical metamaterials; optical resonators; varactors; backward coupling characteristics; coupled line structure; coupled-line directional coupler; forward coupling characteristics; frequency; loss 0 dB; metamaterial structure; mushroom-shaped resonators; reconfigurable directional coupler design; split-ring resonators; tunable varactors; Couplings; Directional couplers; Metamaterials; Optical resonators; Resonant frequency; Varactors;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6808979
