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Permanent link (DOI): https://doi.org/10.7939/R35X25S77

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3-D Cubic Slot Antennas with Application in Wireless Sensor Networks Open Access

Descriptions

Other title
Subject/Keyword
3D Cubic Antenna
Antenna in Package
Conformal Slot Antenna
Reconfigurable Antenna
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Shamsinejad, Souren
Supervisor and department
Pedram Mousavi / Department of Mechanical Engineering
Examining committee member and department
Masoud Ardakani/ Department of Electrical and Computer Engineering
Ashwin Iyer/ Department of Electrical and Computer Engineering
Dimitris Anagnostou/ Heriot Watt University, Scotland (External)
Manisha Gupta/Department of Electrical and Computer Engineering (Chair)
Neda Nazemifard/ Department of Chemical Engineering (Internal defense committee)
Vien Van/ Department of Electrical and Computer Engineering
Department
Department of Electrical and Computer Engineering
Specialization
Electromagnetics and microwaves
Date accepted
2017-09-29T09:19:23Z
Graduation date
2017-11:Fall 2017
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
Designing cost-effective, easy-to-implement hermetic antenna-package is a big challenge. These devices are particularly advantageous in portable scenarios with size and power restrictions. Their applications include but not limited to military, medical, space, and environmental monitoring where reliable communication among numerous monitoring nodes is crucial for the Wireless Sensor Networks (WSN) to fulfill requirements of simultaneous data transfer and massive connectivity. In this dissertation, we focused on design, simulation and fabrication of several types of hermetic antenna packages which are especially suitable for low cost mass production due to their compatibility with 3D printing manufacturing. Additionally, by employing conformal slot configuration on cubic structures, we managed to implement a structure with hollow interior space for electronic circuit placement to achieve lowprofile design and keep the outer surface purely conductive to guarantee EMI protection to handle harsh environmental conditions. Proposed configurations are prototyped on cubic structures as their symmetric shapes provide eminent suitability to offer horizontally polarized omnidirectional radiation pattern in the azimuth plane. This enhances the performance of terrestrial communication in wireless senor networks where distribution of angle of arrivals is more concentrated around horizon which is an improvement upon current designs as it has the capability to reduce interference usually experienced by vertically-polarized counterparts. Special wireless sensor network applications covet antennas capable of switching beams between directive and omnidirectional states to handle both terrestrial and sky communications where the former is used in adhoc network among sensory nodes and the latter is used between a hub installed on a drone or a satellite and sensory nodes. To address this need, we also developed a reconfigurable antenna-package which offers both broadside radiation patterns toward top and bottom faces of the cube as well as omnidirectional radiation pattern in the azimuth plane to cover all 3D space around the antenna. In addition, to serve applications where beam forming or MIMO is required for high speed communication or communication in the areas where multipath propagation is dominant, a multiport cubic structure is proposed which can switch between omnidirectional and directional radiation patterns in the azimuth plane. Proposed antennas are the best compromise between solution to ISM-band bandwidth scarcity and adaptability with WSN technologies (Heart and ZigBee).
Language
English
DOI
doi:10.7939/R35X25S77
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication
S. Shamsinejad, F. De Flaviis, and P. Mousavi, “Microstrip-Fed 3-D Folded Slot Antenna on Cubic Structure,” IEEE Antennas Wirel. Propag. Lett., vol. 15, pp. 1081– 1084, 2016.S. Shamsinejad, F. M. Monavar, F. De Flaviis, G. Moradi, and P. Mousavi, “Threedimensional- folded annular slot antenna-package,” Microw. Opt. Technol. Lett., vol. 59, no. 8, pp. 1871–1876, Aug. 2017.

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