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:
Jun. 27, 1995
Filed:
Jul. 13, 1993
Kwo W Chang, Rancho Palos Verdes, CA (US);
Tzu-Hung Chen, Hsinchu, TW;
Louis C Lui, La Habra, CA (US);
Stacey B Bui, Torrance, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A monolithic diode star mixer incorporating an RF balun and a local oscillator balun in which a center microstrip conductor for each of the baluns is configured between parallel strip transmission lines in a common plane. The RF and local oscillator baluns are positioned in a ground plane such that the baluns are at relative right angles to each other and in which the center microstrips are connected. A center ring conductor enables the diodes associated with the mixer to be connected to the transmission lines and a common connection point. Additionally, an intermediate frequency transmission line is also connected to the conductive ring.