Compact microstrip antenna with magnetic substrate

Details Compact microstrip antenna with magnetic substrate Compact microstrip antenna with magnetic substrate

1996-01-30

1996-12-31

Brown, Peter Toby

Communications: radio wave antennas

Antennas

Including magnetic material

343895, 343700MS, H01Q 138, H01Q 2504, H01Q 136

Patent

active

055898424

ABSTRACT:
A compact broadband microstrip antenna for mounting to one side of a ground plane comprises a closed (usually circular) array of antenna elements positioned to one side of a substrate for spacing the antenna elements a selected distance above the ground plane, the antenna elements being adapted to be electrically driven out of phase from one another to excite one or more spiral modes. In another form, a compact microstrip antenna comprises one or more antenna elements positioned to one side of a magnetic substrate for spacing the antenna elements a selected distance from a ground plane, the magnetic substrate being chosen to have a relative permittivity which is roughly equal to its relative permeability. In a third form, a microstrip antenna is adapted for operating in a single mode and radiation from other modes is suppressed by varying the spacing above the ground plane in the radiation zones so that only radiation in the desired mode is fostered. The disclosed antenna achieves a reduction in physical size at a sacrifice of bandwidth and gain.

REFERENCES:
patent: 3811128 (1974-05-01), Munson
patent: 3949407 (1976-04-01), Jagdmann et al.
patent: 4101899 (1978-07-01), Jones, Jr. et al.
patent: 4525720 (1985-06-01), Corzine et al.
Bozorth, Ferromagnetism, IEEE Press, Piscataway, NJ Copyright 1978, AT&T, pp. 5 & 6.

Affiliated with

Also associated with

Rating

Compact microstrip antenna with magnetic substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact microstrip antenna with magnetic substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact microstrip antenna with magnetic substrate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1144843