Title :
An unequal broadband power divider using Composite Right/Left-Handed Transmission Lines
Author :
Zhao, Shiwei ; Tang, Zongxi ; Wu, Yiwei ; Zhang, Biao
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A unequal power divider using anti-coupled and Microstrip Metamaterial Lines over a large bandwidth is proposed. The structure comprises anti-coupled power divider, followed by a +90° negative-refractive index (NRI) metamaterial (MM) phase-shifting line along the top branch, and traditional microstrip line along the bottom branch. The structure is used to deliver flexible variation of power division ratio and phase using Composite Right/Left-Handed Transmission Lines (CRLH-TL), besides, anti-coupled power divider to suppress the second harmonic. The proposed power divider exhibits a measured differential output phase 90° ± 5°bandwidth from 1.62 to 2.75GHz, while the output quantities S21 and S31 remain above-4dB from 0.7 to 2.5GHz.
Keywords :
microstrip lines; power dividers; telecommunication transmission lines; broadband power divider; differential output phase measurement; frequency 1.62 GHz to 2.75 GHz; microstrip metamaterial line; negative refractive index; phase shifting line; power division ratio; transmission line; Broadband antennas; Broadband communication; Loss measurement; Metamaterials; Microstrip; Power dividers; Power transmission lines;
Conference_Titel :
Ultra-Wideband (ICUWB), 2010 IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-5305-4
Electronic_ISBN :
978-1-4244-5306-1
DOI :
10.1109/ICUWB.2010.5615343
