Title :
A double-slab leaky-wave NRD antenna
Author :
Lee, M.T. ; Luk, K.M. ; Xu, S.J. ; Yung, E.K.N.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
A novel leaky-wave antenna based on an image nonradiative dielectric guide with two dielectric slabs is designed, fabricated and measured. By selecting appropriate values of permittivities and thicknesses for the two slabs, the gain bandwidth can be enhanced to four times wider than the ordinary single-layer nonradiative dielectric antenna. With appropriate thickness of the dielectric slab, the beamwidth can also be adjusted.
Keywords :
leaky wave antennas; millimetre wave antennas; nonradiative dielectric waveguides; waveguide antennas; dielectric slab; double-slab NRD antenna; image nonradiative dielectric guide; leaky-wave antenna; millimeter-wave antenna; Antenna measurements; Antennas and propagation; Bandwidth; Dielectric measurements; Dielectric substrates; Gain measurement; Impedance; Leaky wave antennas; Permittivity measurement; Slabs; Leaky-wave antenna; millimeter-wave antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.834024
