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:
Dec. 03, 1996
Filed:
Sep. 21, 1995
Applicant:
Inventor:
Perry A Macdonald, Culver City, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H04B / ;
U.S. Cl.
CPC ...
333246 ; 361818 ; 455301 ; 333239 ;
Abstract
Shielding structures are provided for microwave circuits with substrate members and shield members which are formed from conventional substrates. The shield members are shaped and joined to the substrate members to form conductive compartments that substantially surround the microwave circuits and the compartments are closed with a conductive cover. The substrate members and shield members form parallel-plate waveguides which communicate between the compartments. The loss of these waveguides is increased with air-dielectric posts to obtain greater isolation between compartments.