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. 18, 1993
Filed:
Jul. 18, 1990
Eiji Suzuki, Kawasaki, JP;
Kokan Densetsu Kogyo Kabushiki Kaisha, Kanagawa, JP;
Abstract
A frequency-conversion mixer, which is designed to operate in substantially the whole range of the radio frequency band extending from low frequency to the ultra-high frequency, has first and second diodes inversely arranged in parallel connection between a first input terminal for a receiving signal and a junction point. Third and fourth diodes are connected in forward series between a common terminal and a second input terminal for an oscillator signal with the junction point between the third and fourth diodes. A dc component removing capacitor is connected to the junction point for providing a frequency mixed signal, whereby the use of a transformer as used in a double balanced mixer is eliminated and there is practically no output response at frequencies below the cutoff frequency of the diodes.