ORCID
- Patrick McEvoy: 0000-0002-0332-2879
Abstract
Precision is a crucial requirement in indoor localization, and the industrial sector increasingly demands technologies that provide both high accuracy and low cost. This work presents a hardware-based evaluation of dual-antenna arrays using an IEEE 802.15.4z-compliant UWB angle of arrival (AoA) development kit to assess antenna performance in terms of phase difference of arrival (PDoA)/AoA linearity. Four antenna types: 1) printed monopole; 2) CPW-fed slot; 3) stacked dielectric resonator antenna (DRA); and 4) dual-layer microstrip patch are evaluated on channels 5 and 9, with measurements performed in a calibrated anechoic chamber under controlled conditions. The results show that wide beamwidth with stable realized gain and antenna array inter-element spacing (d) have a greater influence on AoA performance than isolation alone. The outcomes offer practical antenna-design guidance for improving AoA robustness in compact, low-cost UWB positioning platforms.
Keywords
Angle of arrival (AoA), antenna arrays, indoor localization, Internet of Things (IoT), phase difference of arrival (PDoA), printed circuit board (PCB)-integrated antennas, ultra-wideband (UWB)
Publication Date
2026-01-01
Publication Title
IEEE Transactions on Instrumentation and Measurement
Volume
75
ISSN
0018-9456
Deposit Date
2026-09-04
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Additional Links
Recommended Citation
Hokmabadi, H., Ur Rehman Khan, W., McEvoy, P., & James Ammann, M. (2026) 'Influence of Beamwidth, Gain Stability, and Antenna Element Spacing on AoA Accuracy in IEEE 802.15.4z UWB Systems', IEEE Transactions on Instrumentation and Measurement, 75. Retrieved from https://arrow.tudublin.ie/engschelero/25