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

Faezi, Hadi; Sadeghi, Sajad; Mohammadpour-Aghdam, Karim; Hodjat Kashani, Farokh; Tayarani, Majid

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