US 6,711,385 B1
Coupler for wireless communicationsGeneral
US 6,711,385 B1
Coupler for wireless communications
Tech Center:
2600 Communications
Examiner:
Lee Nguyen
Art Unit:
2682 Telemetry and Code Generation; Vehicles and System Alarms; Selective Communication; Dynamic Storage Systems; Mechanical parts of Disk Drives; Signal Processing and Control Processing in Disk Drives
Inventors:
Charles Abraham
Assignee:
Priority:
07/06/00
Filed:
07/06/00
Granted:
03/23/04
Expiration:
09/27/21
Abstract
An apparatus for communication of electric or electromagnetic signals over air includes a transmitter or receiver and a coupler. The coupler has a capacitive circuit connected with an air-core or dielectric-core transformer. The capacitive circuit resonates with the transformer at a preselected frequency. The coupler eliminates noise and is matched to the characteristic impedance of the air at the preselected frequency, which linearizes communication and allows high-speed data and voice communication over long distances.