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:
May. 22, 1990
Filed:
Dec. 22, 1988
Applicant:
Inventor:
Chandra Khandavalli, Fremont, CA (US);
Assignee:
Avantek, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333109 ; 333116 ;
Abstract
A branch line coupler is disclosed. The device is comprised of multiple ports and branch lines, every two such lines being connected in a junction point. Each branch line has a width which is narrow at each end and increases in a curvilinear manner toward the middle. By virtue of the width design, the device performs the same functions as a conventional coupler, but for much higher frequencies.