Doctor of Philosophy (PhD)
First Advisor's Name
John L. Volakis
First Advisor's Committee Title
Second Advisor's Name
Elias A. Alwan
Second Advisor's Committee Title
Third Advisor's Name
Third Advisor's Committee Title
Fourth Advisor's Name
Fourth Advisor's Committee Title
electrical and computer engineering
Date of Defense
This dissertation presents the development of a new class of Ultra-Wideband (UWB) apertures for aerial applications by introducing designs with over 50:1 bandwidth and novel differential feeding approaches. Designs that enable vertical integration for flip-chip millimeter-wave (UWB) transceivers are presented for small aerial platforms. Specifically, a new scalable tightly coupled array is introduced with differential feeding for chip integration. This new class of beam-forming arrays are fabricated and experimentally tested for validation with operation from as low as 130 MHz up to 18 GHz. A major achievement is the study of millimeter wave beamforming designs that operate from 22-80 GHz, fabricated using low-cost printed circuit board (PCB) methods. This low-cost fabrication approach and associated testing of the beamforming arrays are unique and game-changing.
Previously Published In
Portions of the dissertation have been published by IEEE as conference and journal papers
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Johnson, Alexander D., "Ultra-Wideband Phased Arrays for Small Mobile Platforms" (2019). FIU Electronic Theses and Dissertations. 4222.
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