Waveguide-Type CRLH Transmission Line Composed of Metallic Cylinder-Pairs Arranged in Two Lines and Its Radiation Characteristics as a Leaky-Wave Antenna

摘要

In this research, a waveguide-type composite right/left-handed (CRLH)transmission line (TL)composed of metallic cylinder-pairs is applied to a leaky-wave antenna. The leaky-wave antenna operating in microwave region is fabricated and its radiation characteristics are measured. The measured results show that the fabricated antenna can steer a beam according to input frequency, and the beam-steering operation are achieved in the angular range from +60° to +120°.