Abstract
Improved Design of Uniform SIW Leaky Wave Antenna With Suppression of Unwanted Mode
Highlights
Longitudinal long slot leaky-wave antenna (LWA) have been widely studied and used due to their simple structure and good performance [13].The existence of a uniform longitudinal slot, perturbs the main TE10 mode of the rectangular waveguide and causes propagation of a leaky mode
The slotted perturbations may lead to the excitation of unwanted modes which their features of propagation cannot be controlled [6]
Suppression of the unwanted mode is achieved by properly adding periodic transverse slots to the uniform longitudinal slot
Summary
Longitudinal long slot LWAs have been widely studied and used due to their simple structure and good performance [13].The existence of a uniform longitudinal slot, perturbs the main TE10 mode of the rectangular waveguide and causes propagation of a leaky mode. Suppression of the unwanted mode is achieved by properly adding periodic transverse slots to the uniform longitudinal slot.
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