Abstract:
This project proposes an Indoor Positioning System 2.45 GHz planar Beam Steering Antenna Array. The antenna array has a 4×4 Butler matrix phase shifter and four dipole Yagi antennas. A switching controller lets the antenna’s main beam steer in four directions: +37°, −12°, +12°, and −36°.
The antenna’s narrow fan beam reduces multipath signals by 21.5° to 24.5° in azimuth and 90° in elevation. These benefits improve positioning system accuracy. The 400 MHz antenna has a peak gain of 9.1 to 9.8 dBi in four directions.
The fully electronically steerable antenna prototype was designed using CST software, simulated using the finite element method, fabricated on RO4003C substrate, and measured. The Indoor Positioning System uses trilateration, triangulation, and fingerprinting to demonstrate the antenna’s ability to improve location accuracy with a mean location error/area ratio of 0.051, 0.033, and 0.023.
Keywords: Antenna Arrays, Dipole Antennas, Antennas, Butler Matrices, Antenna Measurements, Zigbee, Linear Antenna Arrays, Indoor Environment, Antenna Radiation Patterns, Beam Steering, Dipole Antenna Arrays, Finite Element Analysis, Phase Shifters, Planar Antenna Arrays, Uhf Antennas, Wireless Sensor Networks, Yagi Antenna Arrays
Note: Please discuss with our team before submitting this abstract to the college. This Abstract or Synopsis varies based on student project requirements.
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