Title :
Broadband Leaky-Wave Antenna Fed With Composite Right/Left-Handed Transmission Line
Author :
Miyama, Yoshihiro ; Wakino, Kikuo ; Lin, Yu-De ; Kitazawa, Toshihide
Author_Institution :
Dept. of Electr. & Electron. Eng., Ritsumeikan Univ., Kusatsu
Abstract :
The broadband feeder line is investigated to exploit the broadband nature of leaky-wave antenna. The feeding structure is realized by inserting the composite right/left-handed transmission line (CRLH-TL) into the feeder. Microstrip CRLH-TL feeder line is designed for the microstrip leaky-wave antenna. The microstrip leaky-wave antenna system shows a return loss of less than 9.5 dB (VSWR < 2.0) from 6.2 GHz to 9.3 GHz in the measured result, and exhibits the beam-steering nature as frequency is varied.
Keywords :
antenna feeds; beam steering; broadband antennas; leaky wave antennas; microstrip antennas; microstrip lines; transmission lines; beam-steering; broadband feeder line; composite left-handed transmission line; composite right-handed transmission line; frequency 6.2 GHz to 9.3 GHz; microstrip feeder line; microstrip leaky-wave antenna; Antenna feeds; Antenna measurements; Attenuation; Bandwidth; Broadband antennas; Frequency; Leaky wave antennas; Microstrip antennas; Power transmission lines; Transmission line measurements; Broadband antenna; composite right/left-handed transmission line; leaky-wave; spectral domain approach;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.2005549
