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:
Apr. 21, 1987
Filed:
May. 08, 1985
Applicant:
Inventor:
Ronald E Jachowski, Belmont, CA (US);
Assignee:
Orion Industries, Inc., Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P / ; H03H / ;
U.S. Cl.
CPC ...
333134 ; 333203 ; 455 78 ;
Abstract
A duplexer includes an integral interdigital transmitter filter and parallel interdigital receiver filter in a common housing. A three-quarter wavelength antenna transformer section couples rf energy from the transmitter filter to an antenna and also couples rf energy from the antenna to the receiver filter and to an antenna cable connector.