Large-scale electronically steerable millimeter-wave antennas for wireless power delivery
Abstract/Contents
- Abstract
- The recent expansion of wirelessly connected devices (often termed the Internet of Everything) has intensified the need for safe, long-range wireless power delivery systems. Approaches to long-range wireless power delivery that have been demonstrated to date are lacking in the amount of power than can be safely delivered to small receiving devices. Radio frequency power delivery systems operating at millimeter-wave frequencies open up the far-field distance of the transmitter as a largely unexplored degree of freedom to achieve this goal. However, such systems inherently require a highly directional beam to be steered toward the intended receiver, and electronic means of achieving this goal are typically cost-prohibitive for consumer and industrial applications. The reconfigurable reflectarray antenna architecture enables the design of large, low-complexity electronically steerable antennas, but implementations in the literature use either boutique processes that are difficult to scale or tunable components that consume excessive static power. This work presents the design of a large, 2-d steerable millimeter-wave reflectarray, including a CMOS reflective phase shifter IC. The CMOS phase shifter IC simplifies the design of large arrays by integrating control logic and enables milliwatt-level static power consumption even for large arrays. Flip-chip on printed circuit board construction ensures small silicon area even for large antenna apertures. Measurements of an 874-element demonstration array operating at 61.5 GHz are presented showing beam scanning in two dimensions. The measured aperture efficiency is 8.7 percent with a silicon area of only 0.21 square millimeters per element and a power consumption of 1.1 milliwatt for the entire array.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2020; ©2020 |
| Publication date | 2020; 2020 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Buckmaster, John Gabriel |
|---|---|
| Degree supervisor | Lee, Thomas H, 1959- |
| Thesis advisor | Lee, Thomas H, 1959- |
| Thesis advisor | Arbabian, Amin |
| Thesis advisor | Rivas-Davila, Juan |
| Degree committee member | Arbabian, Amin |
| Degree committee member | Rivas-Davila, Juan |
| Associated with | Stanford University, Department of Electrical Engineering. |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | J. Gabriel Buckmaster. |
|---|---|
| Note | Submitted to the Department of Electrical Engineering. |
| Thesis | Thesis Ph.D. Stanford University 2020. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2020 by John Gabriel Buckmaster
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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