Browsing Theses by Subject "antenna"
Now showing items 1-7 of 7
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Analog Signal Processor for Adaptive Antenna Arrays
(University of Waterloo, 2008-01-04)An analog circuit for beamforming in a mobile Ku band satellite TV antenna array has been implemented. The circuit performs continuous-time gradient descent using simultaneous perturbation gradient estimation. Simulations ... -
Design of a mm-wave Planar CPW-fed Tapered Dielectric Rod Antenna
(University of Waterloo, 2011-12-16)The demand for high data rate transfers in short range areas have been increasing significantly. Millimeter wave communication systems can fulfill the requirements for such applications due to the availability of wide ... -
Efficiency and Linearity Improvement of Sub-6GHz Digital Beam-forming Transmitters
(University of Waterloo, 2021-09-16)The fifth generation (5G) cellular network promises to bring higher data capacity, faster transmission speed, and lower latency. 5G employs massive multiple-input multiple-output (mMIMO) architecture which enables many ... -
Electromagnetic Energy Harvesting
(University of Waterloo, 2021-10-28)The advent of rectenna systems has opened the door for many applications, with the main goal of harvesting electromagnetic waves. Many designs have been presented to provide a high conversion efficiency. Some works have ... -
Electromagnetic Energy Harvesting Surfaces
(University of Waterloo, 2018-10-11)The concept of wireless power transfer (WPT) was successfully demonstrated in the early years of the 20th century. One promising application of using the WPT concept is the WPT transmission utilizing a large array of solar ... -
High-Efficiency Millimeter-Wave Front-Ends for Large Phased-Array Transmitters
(University of Waterloo, 2020-10-26)The ever-increasing demand for wireless broadband connectivity requires infrastructure capable of supporting data transfer rates at multi-Gbps. To accommodate such heavy traffic, the channel capacity for the given spectrum ... -
A Novel Retro-directive Phased Array Antenna Architecture
(University of Waterloo, 2018-12-21)Mobile wireless communication scenarios can range from a simple indoor WiFi link to a satellite internet connection to an airplane. Virtually in all scenarios, dynamic changes in the propagation environment or the movement ...