Title :
A high directivity-wideband metamaterial multisection directional coupler
Author :
Taye, Mazhar Basyouni ; Alhakami, Hani Saad
Author_Institution :
Fac. of Eng., Alexandria Univ., Alexandria, Egypt
Abstract :
In this paper, a novel uni planar directional coupler using left-handed TL is proposed. Short microstrip parallel coupled lines and asymmetrical delay line pairs make multi-sectioned coupler enhance the directivity as well as the coupling. Each delay line pair consists of a right-handed TL and a lumped left-handed TL. Furthermore, a 2/12 coupled line section makes the design area compact. The designed 3-section 18 dB coupler is measured at center frequency of 2.0 GHz, It shows good agreement with the simulation result.
Keywords :
lumped parameter networks; metamaterials; microstrip directional couplers; transmission lines; asymmetrical delay line pairs; high directivity-wideband metamaterial; lumped left-handed TL; multisection directional coupler; multisectioned coupler; right-handed TL; short microstrip parallel coupled lines; transmission line; uni planar directional coupler; Microstrip; Advanced Design System (ADS); Directional coupler; directivity; left-handed TL; lumped-element; metamaterial; multisection coupler;
Conference_Titel :
Mobile IT Convergence (ICMIC), 2011 International Conference on
Conference_Location :
Gyeongsangbuk-do
Print_ISBN :
978-1-4577-1128-2
Electronic_ISBN :
978-89-88678-61-9
