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US 2020/0028270 A1Published application
Systems and methods for sensing a lifeform using dynamic metasurface antennas
AssigneeDuke University
InventorsSeyedmohammadreza Faghih Imani, Timothy Sleasman, Jonah Gollub, David Smith
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Abstract
The present disclosure provides systems and methods relating to sensing the presence of a lifeform. In particular, the present disclosure provides systems and methods for detecting the presence of a lifeform in a building or room using dynamic metasurface aperture (DMA), which overcome many limitations of currently available radio frequency (RF) or infrared (IR)-based systems.
Claims21
A system comprising:
- a transmitting antenna configured to emit arbitrary radiation patterns at a single operating frequency;
- and
- at least one receiver antenna configured to collect one or more signals generated when an object alters the arbitrary radiation patterns emitted by the transmitting antenna;
- wherein the system is configured to capture temporal variations in a complex indoor environment.
1 more element
A method of detecting a lifeform in a complex indoor environment, the method comprising:
- configuring a transmitting antenna to emit arbitrary radiation patterns at a single operating frequency;
- configuring at least one receiver antenna to collect one or more signals generated when an object alters the arbitrary radiation patterns emitted by the transmitting antenna;
- generating a temporal signature of the complex indoor environment by obtaining continuous transmission measurements;
- and
- identifying at least one temporal variation in the temporal signature.
2 more elements
Dependencies are inferred from the claim text.