Thomas Apperley
University of Calgary
9 Papers
2 Citations
Thomas Apperley is an academic researcher from University of Calgary. The author has contributed to research in topics: Dielectric resonator antenna & Reconfigurable antenna. The author has an hindex of 3, co-authored 9 publications.
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Papers
Comparative study of electromagnetic interference shielding properties of injection molded versus compression molded multi-walled carbon nanotube/polystyrene composites
TL;DR: In this paper, the authors compared the electromagnetic interference (EMI) shielding properties of injection molded versus compression molded multi-walled carbon nanotube/polystyrene (MWCNT/PS) composites.
447
Doherty Transmitter Based on Monopole Array Antenna Active Load Modulation
Yulong Zhao,Fadhel M. Ghannouchi,Mohamed Helaoui,Xiang Li,Xuekun Du,Weiwei Zhang,Thomas Apperley +6 more
TL;DR: In this paper, a new antenna topology was proposed to implement the load modulation in the Doherty transmitter, which resulted in enhancing the bandwidth compared to previous works, and the active load modulation was realized by using a monopole array antenna, which serves as both Doherty combiner and wave radiator.
13
A Class E/F odd Power Oscillator Incorporating a Distributed Active Transformer
TL;DR: In this paper, a power combined high-efficiency oscillator is proposed using a hybrid class E and class F tuning, where the odd harmonics are shorted: the class E/Fodd.
4
An Uncoated RF Heating Applicator With Reduced Environmental Sensitivity Using Two Coaxial Discontinuities
TL;DR: In this article, a single-bare conductor transmission line excited bidirectionally with two coaxial discontinuities creates a virtual impedance boundary through field superposition, where, ideally, the virtual boundary is a termination for a tuning stub formed in the surrounding material.
2
A frequency reconfigurable dielectric resonator antenna using controllable air gaps
Thomas Apperley,Michal Okoniewski +1 more
- 06 Apr 2014
TL;DR: In this paper, a new frequency reconfiguration technique for the dielectric resonator antenna (DRA) using controllable air gaps under the resonator, is presented.
1