Df antenna array patents | Patentfish.com

Near field to far field DF antenna array calibration technique

Filed: September 17th, 2003 [Granted]

Assignee: BAE Systems Information and Electronic Systems Integration Inc

Patent Number: 7119739

Using the calculated weighting factors for each test point 20 24 the RF signals received using the DF antenna array 22 are weighted using and are stored to ...

Wideband perimeter configured interferometric direction finding antenna array

Filed: March 24th, 2003 [Granted]

Assignee: The United States of America as represented by the Secretary of the Navy

Patent Number: 6703975

The antenna array 10 experiences co-polarization and cross-polarization ... A direction finding antenna array mounted on a perimeter portion of an airframe, ...

Circular direction finding antenna

Filed: November 29th, 1999 [Granted]

Assignee: Raytheon Company

Patent Number: 6295035

25 One major problem with the spinner type of DF antenna is that once it locks onto a target, it is blind to the rest of the field of view. Phased array ...

Broadband fan come direction finding antenna and array

Filed: January 4th, 2001 [Pending]

Patent Application Number: 9755879

In order to reliably measure the amplitude and phase of the signal received by each antenna in the array for the purpose of direction finding, ...

Electronically scanning direction finding antenna system

Filed: April 15th, 2004 [Granted]

Assignee: Tecom Industries Inc

Patent Number: 6987489

A radio frequency direction finding antenna system of claim 11 further comprising: an antenna array comprising a plurality of log periodic antennae arranged ...

Broadband fan cone direction finding antenna and array

Filed: July 16th, 1999 [Granted]

Assignee: TCI International Inc

Patent Number: 6198454

1 BROADBAND FAN CONE DIRECTION FINDING ANTENNA AND ARRAY This application is a continuation of US application Ser. No. 08/887366, filed Jul.

Co-linear antenna for direction finding

Filed: December 5th, 2007 [Granted]

Assignee: The United States of America as represented by the Secretary of the Army

Patent Number: 7652626

One significant disadvantage with current direction-finding antenna systems is the antenna spacing problem typically found in antenna arrays with 4 or 5 ...

Wide field-of-view fixed body conformal antenna direction finding array

Filed: June 7th, 1995 [Granted]

Assignee: Raytheon TI Systems Inc

Patent Number: 5818393

1 WIDE FIELD-OF-VIEW FIXED BODY CONFORMAL ANTENNA DIRECTION FINDING ARRAY This application is a continuation of application Ser. No.