Title :
Enhanced Transmission and High-Directivity Radiation Based on Composite Right/Left-Handed Transmission Line Structure
Author :
Liu, Yahong ; Gu, Haifeng ; Zhao, Xiaopeng
Author_Institution :
Dept. of Appl. Phys., Northwestern Polytech. Univ., Xi´´an, China
fDate :
7/3/1905 12:00:00 AM
Abstract :
In this letter, an enhanced transmission structure with high-directivity radiation through a single slit in a 1.5-mm-thick Teflon circuit board material surrounded by arrays of parallel metallic patches and via-holes is reported. The proposed structure is based on the composite right/left-handed transmission-line microstrip technology. The radiation principle is analyzed by employing transmission-line dispersion relation. High-directivity radiation is observed at the frequency where enhanced transmission occurs. The experimental results are consistent with the theoretical prediction.
Keywords :
antenna radiation patterns; directive antennas; dispersion (wave); metamaterials; microstrip antennas; microwave antennas; transmission lines; Teflon circuit board material; composite right/left-handed transmission-line microstrip technology; high-directivity radiation; parallel metallic patch; radiation principle; transmission structure; transmission-line dispersion relation; Antenna arrays; Antenna measurements; Antenna radiation patterns; Apertures; Gain; Materials; Composite right/left-handed transmission line (CRLH TL); enhanced transmission; high directivity;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2160326
