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:
Sep. 15, 1998
Filed:
Mar. 07, 1996
Applicant:
Inventor:
Taisuke Nakamura, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333 / ; 333 / ;
Abstract
A first bypass capacitor and a second bypass capacitor are connected in series between an input terminal and an output terminal for high frequency signals. A quart-wave line and a diode are connected between the connecting point of the first and second bypass capacitors and the ground, and a choke coil is connected between the connecting point and a D.C. voltage input terminal. When input signals are not to be attenuated, a D.C. voltage is fed from the D.C. voltage input terminal, and no D.C. voltage is fed when the signals are to be attenuated.