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:
Nov. 12, 1991
Filed:
Oct. 01, 1990
Harris Corporation, Melbourne, FL (US);
Abstract
A two-dimensional periodic conductive post array structure is used to suppress higher order wave propagation within a large microstrip housing assembly without attentuating the desired TEM mode of propagation. Substantially vertical conductive posts are spaced at appropriate wavelength periods in the X and Y directions on top of and through a microstrip substrate in a so called 'waffle-wall' type configuration. The periodic post structure provides high microwave signal isolation by functioning as a band rejection filter both above the microstrip substrate and within the substrate to isolate between nearby active and passive circuit functions located on the microstrip substrate. The desired TEM mode microstrip transmission line is routed through the conductive post matrix to provide the signal, control and DC paths between circuit chips and other active and passive circuit functions.