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:
Feb. 03, 1981
Filed:
Nov. 02, 1979
Applicant:
Inventors:
Keiro Shinkawa, Yokohama, JP;
Chuichi Sodeyama, Yokohama, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455327 ; 455330 ; 455331 ;
Abstract
A mixer circuit formed of a micro strip line for converting an input signal in SHF band into an intermediate frequency signal in UHF band is disclosed which includes an arch-shaped half-wavelength line having a length equal to one half of the wavelength of the input signal and a series circuit of two diodes connected between both ends of the half-wavelength line, and in which the input signal and a local oscillation signal are applied respectively to the junction point of the diodes and one end of the half-wavelength line, and the intermediate frequency signal is delivered from a given point on the half-wavelength line.