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:
Aug. 09, 2011
Filed:
Jan. 16, 2007
Dennis Longstaff, Eight Mile Plains, AU;
Dennis Longstaff, Eight Mile Plains, AU;
Teledyne Australia Pty Ltd, Queensland, AU;
Abstract
A surveillance apparatus () is provided, said apparatus including a linear sub-array () of N omnidirectional transmitter elements () and a planar sub-array () of M receiver elements (). A plurality of the transient elements () are generated by separating out at each of the receivers () the signals transmitted from the antenna elements () of the transmitter sub-array (). This allows the geometry of each path (from each transmitter antenna element, to the point being imaged and back to the receiver antenna elements) to be converted to a delay or phase shift to focus on the particular point being imaged. The transient elements () form a cylindrical array () at the mid points between transmitter and receiver sub-arrays. Such a configuration enables a full 360 degrees of cover in azimuth and typically +/−60 degrees in elevation.