Abstract
This paper presents a dual-band planar antenna array for ISM band applications (2.4 GHz and 2.45 GHz). This antenna is proposed for indoor applications and enables adaptive beamforming and angle of arrival (AOA) estimation. An adaptive beamforming algorithm is applied for a planar antenna array, which is able to steer its main beam and nulls in azimuth and elevation planes over a wide frequency band. Planar antenna array operates as a spatial filter in 3D space, processing the received signals with weighting schemes. A planar antenna array is designed for AOA estimation in azimuth and elevation planes by using MUltiple SIgnal Classification (MUSIC) based on subspace algorithm. The Base Station (BS) equipped with this planar antenna is preferred to be at the center position on the room ceiling to cover all sectors of the room. It is designed to use four directional triangular elements arranged to form a square planar antenna array. Planar antenna with four elliptical slotted triangular elements (PAFESTE) is used to obtain optimal directivity in four directions in azimuth plane with specific orientation of 30? in elevation plane. It is characterized by half power beamwidth in elevation plane of about 60? and half power beamwidth in azimuth plane of about 90?.
Highlights
IntroductionSmart antenna (SA) is beam-steering antenna which represents an emerging technology to improve the perfor-
Smart antenna (SA) is beam-steering antenna which represents an emerging technology to improve the perfor-How to cite this paper: Elsamnty, R., Attiya, A.M., Abdallah, E.A.F. and Ammar, A.H. (2016) Beamforming and Angle-of-Arrival Estimation of Square Planar Antenna Array
This paper presents analysis of 4-antenna elements arranged in a 2 × 2 rectangular planar antenna array
Summary
Smart antenna (SA) is beam-steering antenna which represents an emerging technology to improve the perfor-. Adaptive antenna array optimizes this algorithm according to user’s requirement, so that the output matches with signals of interest in forming the best antenna pattern. The smart antenna system estimates the direction of arrival of the signal by using MUSIC algorithm which is subspace based technique. Dual-band planar antenna array, namely planar antenna with four elliptical slotted triangular elements (PAFESTE) is proposed to cover the room with frequency and radiation pattern diversity. This prototype is designed to address the challenges of indoor applications. A PAFESTE is designed for AOA estimation in azimuth and elevation planes using the MUSIC based on subspace algorithm
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