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:
Jun. 07, 1994
Filed:
Aug. 21, 1992
Applicant:
Inventors:
Ming-Jong Shiau, Cerritos, CA (US);
Michael Vieru, Canoga Park, CA (US);
John C Tippet, Rancho Palos Verdes, CA (US);
Assignee:
TRW Inc., Redondo Beach, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H01P / ;
U.S. Cl.
CPC ...
333204 ; 333238 ; 333246 ;
Abstract
A small, high performance MMIC compatible filter having a suspended dielectric substrate transmission medium to achieve superior Q. The substrate is suspended within an opening formed in a surrounding housing and has a plurality of conductive paths disposed thereon. An elliptical function response provides optimum filter size and insertion loss for a given required out-of-band rejection by making use of finite transmission zeroes on each side of the passband.