2019 Paper on “Empirical Measurements of Antenna Polarization Mismatch and Misalignment Due to Angular Motion”

2 Jan 2020 1:09 PM

Abstract

Propagation in maritime environment dynamically change due to the direct impact of ocean wave undulation to the antenna position and orientation. This paper presents an approach in characterizing signal propagation in a maritime environment by replicating ocean wave-induced antenna motions in a semi-anechoic chamber. The proposed setup may also be used to test mismatch and misalignment mitigating techniques in a controlled environment. The effect on the received signal power of angular motions such as roll, and pitch due to ocean wave undulation, which causes polarization mismatch and antenna misalignment, were investigated in this study. Different setup configurations were applied by varying the tilting orientation, tilting period and tilting range of the antenna in order to replicate various sea state conditions. Measurements reveal the extent of signal degradation due to polarization mismatch and antenna misalignment, and how received signal power degrades with the tilting range. Signal power deviation was measured to reach up to 3 dB and signal power was measured to swing up to 10dB.

Authors

 


 

Joel Joseph S. Marciano Jr., PhD
Acting Director

Dr. Marciano, Jr. Joined the DOST-ASTI in March 2016 as its Acting Director. He is a licensed Electronics Engineer who graduated with a degree in Bachelor of Science in Electrical Engineering from the University of the Philippines, Diliman and was conferred with Doctorate Degree in Electrical Engineering from the University of New South Wales.

Under his leadership, the DOST-ASTI is reviving and ramping up its research on radio frequency (RF) electronics. This is done through various research projects, some of which are in collaboration with the UP-EEEI. Aside from form overseeing the operations of the DOST-ASTI, Dir. Marciano Jr. is currently engaged in several projects such as Communications Relay Buoys for the Communications Relay for CoCoMoNets, Development and Deployment of Advanced Spectrum Platform Network, Development of Software Defined Radio (SDR) based Satellite Telemetry and Telecommand System Simulator Projects, and Development of Extreme Weather Monitoring and Information Sharing System in the Philippines as Project Adviser, as well as the Project Leader of EPDC as Platform for Inclusive Innovation Program (EPIIC) and Synthetic Aperture Radar (SAR) and Automatic Identification System (AIS) for Innovative Terrestrial Monitoring and Maritime Surveillance.

Calvin Artemies Hilario
Senior Science Research Specialist

Mar Francis De Guzman
Science Research Specialist II

Published on

25 February 2019

Presented in

TENCON 2018 – 2018 IEEE Region 10 Conference

Published at

IEEE Xplore Digital Library

Link to Publication

https://ieeexplore.ieee.org/document/8650078