Title :
Analysis for a dielectrically filled parallel-plate waveguide with finite number of periodic slots in its upper wall as a leaky-wave antenna
Author :
Lee, Jong-Ig ; Cho, Ung-Hee ; Cho, Young-Ki
Author_Institution :
Div. of Inf. & Commun. Eng, Dongseo Univ., Pusan, South Korea
fDate :
4/1/1999 12:00:00 AM
Abstract :
A dielectrically filled parallel-plate waveguide (PPW) with finite number of periodic slots in its upper plate is analyzed as a leaky-wave antenna structure for E-polarization case. The characteristics of the finite periodic structure such as input impedance matching, antenna efficiency, gain, and radiation pattern are investigated. In particular, phenomena such as total reflection and transmission occurring in the practical finite periodic structure, associated with the coupling point and the real solution (propagation constant), respectively, in the fast wave region observed for the infinite open periodic structure case, are described in detail
Keywords :
antenna radiation patterns; dielectric-loaded waveguides; electromagnetic wave reflection; electromagnetic wave transmission; impedance matching; leaky wave antennas; parallel plate waveguides; periodic structures; slot antenna arrays; E-polarization; antenna efficiency; coupling point; dielectrically filled parallel-plate waveguide; fast wave region; finite periodic structure; gain; infinite open periodic structure; input impedance matching; leaky-wave antenna; periodic slots; propagation constant; radiation pattern; real solution; total reflection; total transmission; upper wall; Antenna radiation patterns; Antennas and propagation; Dielectrics; Geometry; Impedance matching; Integrodifferential equations; Leaky wave antennas; Periodic structures; Reflection; Strips;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
