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:
Mar. 15, 1977
Filed:
Oct. 07, 1975
Russell W Johnson, Boulder, CO (US);
Ball Corporation, Muncie, IN (US);
Abstract
A microstrip antenna radiator is disclosed which includes three edges spaced around its periphery defining three corresponding active slot areas wherein each slot has a different respectively corresponding resonant dimension associated therewith along a direction substantially transverse to the edge which defines the radiating slot. At least two dimensions of an essentially equilateral triangular shape are altered so as to provide the three different resonant dimensions for the radiator. Typically, at least two sides of such a triangular structure are altered such as by the formation of tab extensions or, alternatively, at least two apices of the basic triangular structure are truncated so as to produce different resonant dimensions in the radiator. Various combinations and permutations of such shape alterations may also be employed. Such a triangular microstrip radiator is especially adapted for elliptical or circular polarization and for utilization in arrays of such polarized elements wherein the triangular shape of each element permits a more nearly optimum spacing of the individual elements within one or more arrays.