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:
Jan. 14, 1992
Filed:
May. 04, 1990
Charles R Bitter, Jr, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An improved tapered notch antenna configuration is provided. H-plane pattern directivity is achieved by splitting the planar tapered notch into two diverging surfaces to increase aperture dimension in that plane. A first embodiement describes a stripline feed approach where the ground plane conductors and attendant dielectric substrates diverge in the notch taper region. A second embodiment utilizes a conductor plane containing a notch and coplanar transmission line which is imbedded at half-depth within an essentially thin dielectric slab. The conductor plane and the dielectric slab separate into two equal but diverging conductive surfaces on separate dielectric substrates in the taper region. The improved tapered notch antenna, according to the invention, provides increased H-plane directivity, while retaining the prior art-features of feed compactness, low-cost, and repeatability.