Om P Gupta

US Patent:

7496329, Feb 24, 2009

Filed:

May 17, 2004

Appl. No.:

10/716147

Inventors:

Jay Patel - Columbia MD, US
Om Gupta - Dayton MD, US
Shuguan Chen - Ellicott City MD, US
James S. Finn - Washington DC, US

Assignee:

Paratek Microwave, Inc. - Columbia MD

International Classification:

H04B 5/00
H04Q 5/22

US Classification:

455 412, 340 1052

Abstract:

An RF ID tag system and method that utilizes an RF ID tag and an RF ID tag reader which incorporates a dynamically reconfigurable wireless antenna and/or an array antenna and/or a switched polarization antenna. The dynamically reconfigurable wireless antenna embodiment comprises at least one multi-layered RF module, said at least one RF module further comprising at least one RF connector for receipt of at least one RF signal and at least one layer of tunable dielectric material and one layer of metal fabricated into said RF module; an RF motherboard for acceptance of RF signals and distribution of the transmit energy to said RF module at the appropriate phases to generate a beam in the commanded direction and width; and a controller for determining the correct voltage signal to send to said at least one multi-layered RF module.

US Patent:

8204438, Jun 19, 2012

Filed:

Nov 17, 2008

Appl. No.:

12/313128

Inventors:

Jay Patel - Columbia MD, US
Om Gupta - Dayton MD, US
Shuguang Chen - Ellicott City MD, US
James S. Finn - Washington DC, US

Assignee:

Paratek Microwave, Inc. - Nashua NH

International Classification:

H04B 7/00
G08B 13/14

US Classification:

455 412, 3405727, 340 101

Abstract:

An embodiment of the present invention provides an RF ID card reader, comprising RF ID circuitry to generate an RF ID signal, a transceiver in communication with said RF ID circuitry and an array antenna associated with said transceiver for scanning an area for at least one tag and establishing communication with at least one tag.