학술논문
Direction of Arrival Estimation by Designing an Antenna with Unique Axial Ratio Profile
Document Type
Conference
Source
2021 International Bhurban Conference on Applied Sciences and Technologies (IBCAST) Applied Sciences and Technologies (IBCAST), 2021 International Bhurban Conference on. :983-987 Jan, 2021
Subject
Language
ISSN
2151-1411
Abstract
This paper proposes a simple and novel method for estimating a coarse Direction of Arrival (DOA) of a radio source by designing an antenna that would have axial ratio (AR) profile with a unique value of the product of AR and its rate of change at each angle of arrival. This will be achieved by designing a 3D half wave dipole antenna having unique axial ratio profile in the Elevation plane. The technique employed is a 3D reconstruction of antenna by using horizontal and vertical components of electric field projections. The simulation divides a 3D dipole into various sections each with a length $\leq\lambda/10$ and iteratively orienting each at random azimuth and elevation angle using MATLAB and generating a corresponding Numerical Electromagnetic Code file and running it. The output NEC file is then examined for suitable AR profile. This process continues unless a unique AR profile is achieved.