The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
Nov. 24, 2004
Gregory Steven Lee, Mountain View, CA (US);
Robert C. Taber, Palo Alto, CA (US);
John Stephen Kofol, Sunnyvale, CA (US);
Gregory Steven Lee, Mountain View, CA (US);
Robert C. Taber, Palo Alto, CA (US);
John Stephen Kofol, Sunnyvale, CA (US);
Agilent Technologies, Inc., Santa Clara, CA (US);
Abstract
A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optimal phase-amplitude performance. In particular, the antennas are configured such that the impedance of each antenna is proportional to the square root of the impedance of the non-ideal switching devices when in an on state and when in an off state.