Electromagnetic compatability with window-choke rings

Details Electromagnetic compatability with window-choke rings Electromagnetic compatability with window-choke rings

2008-05-20

2008-05-20

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S846000, C343S705000, C343S708000, C342S002000

Reexamination Certificate

active

11608265

ABSTRACT:
A choke ring apparatus for attenuation of electromagnetic waves in a mobile platform fuselage includes a ground plane mounted on a surface of the fuselage. The choke ring has an axial circular window and a series of concentric circular ring segments on the ground plane arranged coaxially about the axis of the window. The circular ring segments extend from the ground plane. The ring segments defining at least one groove therebetween. The ring segments have a flat ridge at the edge, and each groove has a depth defined by a pair of adjacent ring segments. The width of the flat ridge surfaces and a width of the groove between adjacent ring segments are approximately equal. The depth of the groove is determined based on a predetermined resonant frequency, such that the choke ring apparatus selectively attenuates electromagnetic waves in a region of the resonant frequency when propagating through the window.

REFERENCES:
patent: 5592174 (1997-01-01), Nelson
patent: 6040805 (2000-03-01), Huynh et al.
patent: 6278407 (2001-08-01), Ashjaee et al.
patent: 6597316 (2003-07-01), Rao et al.
patent: 6940457 (2005-09-01), Lee et al.
patent: 7190315 (2007-03-01), Waltho
patent: 2005/0225474 (2005-10-01), Steingass

Affiliated with

Also associated with

Rating

Electromagnetic compatability with window-choke rings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic compatability with window-choke rings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic compatability with window-choke rings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3919501