Title :
Dual-band quadrature hybrids using 1/8-wavelength composite right/left-handed transmission lines
Author :
Jui-Ching Cheng ; Hung-Yu Lin
Author_Institution :
Electron. Eng. Dept., Chang Gung Univ., Taoyuan, Taiwan
Abstract :
In this paper, dual-frequency 90° hybrids consist of 1/8 wavelength composite right/left-handed (CRLH) transmission lines are proposed. Two hybrids are designed and fabricated to operates at 1.8 GHz and 3.5 GHz. One uses the 1/8- and 3/8-wavelength modes, while the other uses -1/8- and 1/8-wavelength modes. Measured results indicate that good performance is achieved.
Keywords :
directional couplers; metamaterials; transmission lines; 1/8-wavelength modes; 3/8-wavelength modes; composite right-left-handed transmission lines; dual band quadrature hybrids; frequency 1.8 GHz; frequency 3.5 GHz; Directional couplers; Dual band; Microstrip; Power transmission lines; Scattering parameters; Transmission line measurements; CRLH; directional coupler; dual-band; hybrid;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421805
