Computer Aided Design for Rectangular Waveguide Leaky Wave Antenna with Meandering Longitudinal Slot

Authors
Hadi Faezi 1
Sajad Sadeghi 2
Karim Mohammadpour-Aghdam 3
farokh Hodjat kashani 4
Majid Tayarani 4
1 Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran,
2 School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran
3 PhD Electrical Engineering - Telecommunications Department of Engineering Faculty of Engineering - Department of Electrical and Computer Engineering University of Tehran Tehran - North Kargar
4 Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract
In this study, a new simple method for design and implementation of rectangular waveguide leaky wave antenna with the longitudinal long slot is presented. In this method which has been done using HFSS, firstly, the waveguide attenuation is calculated based on the position of the slot in relation to the waveguide broad wall. Then the desired aperture illumination is fitted to the slot position on the broad wall of the waveguide by MATLAB. Finally, a Taylor-distributed rectangular waveguide leaky wave antenna with 30 dB SLL designed and fabricated in ku band. The good agreement between the simulation and the measurement results for radiated patterns verifies the effectiveness of the presented method.
Keywords
Leaky wave antenna
longitudinal slot
computer aided
HFSS
The Modares Journal of Electrical Engineering
Volume 14, Issue 2
Summer 2014
Pages 25-31