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Radiation characteristics of dielectric-coated coaxial waveguide periodic slot with finite and zero thickness

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2 Author(s)
Chang-Won Lee ; Dept. of Electron., Kyungpook Nat. Univ., Taegu, South Korea ; Hyun Son

The leaky wave radiated from the dielectric-coated coaxial waveguide periodic slot with finite and zero thickness is investigated theoretically for the infinite and finite periodic structures. For the infinite periodic structure, mode-matching technique and integral equation method are applied to the analysis of finite and zero thickness slot cases, respectively. The integral equations are derived for the finite periodic structure by use of the Fourier transform and mode expansion and simultaneous linear equations are obtained. The effects of the slot thickness, the finite slot number and the dielectric coating are analyzed. Results for finite periodic slots are compared with those of the infinite extent structure and good agreement is found

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:47 ,  Issue: 1 )