# An Electronically Steerable Antenna Designed for Accurate DoA Determination of U-NII-2-Extended WLAN Devices
> Baharuddin Z.A.

URL kanonis: https://discover.unhas.ac.id/publications/an-electronically-steerable-antenna-designed-for-accurate-doa-determination-of-u
Jurnal / Konferensi: Proceeding 6th International Conference on Information Technology Information Systems and Electrical Engineering Applying Data Sciences and Artificial Intelligence Technologies for Environmental Sustainability Icitisee 2022
Tahun terbit: 2022
DOI: https://doi.org/10.1109/ICITISEE57756.2022.10057635
Citations: 0

## Authors
- Baharuddin Z.A.

## Abstract
Determining the location of the beam source of WLAN devices causing harmful interference to TWDR in the U-NII-2-Extended band requires effective methods and devices. Research regarding the construction of the directional finding antennas in this band is still lacking. An intelligent electronically steerable parasitic array radiatory (ESPAR) antenna design was constructed in this study to perform two critical tasks, i.e., to determine the direction and the location of the radiation source that causes interferences. An electronically beam steerable antenna was implemented in such way using a digitally controlled PE42424 SPDT switch which connected directly to each parasitic element. This allows each parasitic part to stay in one of the two states, i.e., ON or OFF. The RF switch circuit was designed on the plated-through-hole PCB structure. In the ON state, this connects the parasitic elements and the grounding part to reflect the induced RF signal of each element to all OFF-stated parasitic directions. The numerical computation of the designed antenna shows consistent radiation from the main beam pattern which varies at every 45° angle. The maximum gain achieved was up to 8.76 dBi. The reflection coefficient and VSWR obtained through the numerical assessment were −22.3 dB and 1.53, respectively.

## Keywords
- Antenna (radio)
- Passive radiator
- Interference (communication)
- Parasitic element
- Reflection coefficient
- Standing wave ratio
- Computer science
- Radiation pattern
- Electronic engineering
- Beam (structure)
- Reflection (computer programming)
- Electrical engineering
- Acoustics
- Engineering
- Physics
- Periscope antenna
- Optics
- Microstrip antenna
- Channel (broadcasting)
- Programming language

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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