Title :
Wide-band balun using composite right/left-handed transmission line
Author :
Tseng, C.-H. ; Chang, C.-L.
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
A wide-band balun is developed using a composite right/left-handed (CRLH) transmission line (TL) at 2 GHz. It is composed of a Wilkinson power divider and two phase-adjusting transmission lines, namely the CRLH TL and the conventional TL. The input reflection coefficient is better than -10 dB from 1 to 4 GHz. Over the frequency range of 1.24-3.58 GHz, an amplitude imbalance of less than 0.7 dB and a phase error of less than plusmn10deg have been experimentally demonstrated.
Keywords :
baluns; metamaterials; power dividers; transmission lines; Wilkinson power divider; amplitude imbalance; composite right/left-handed transmission lines; frequency 1 GHz to 4 GHz; frequency 2 GHz; input reflection coefficient; metamaterial; phase-adjusting transmission lines; wideband balun;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20071759
