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:
Oct. 25, 2005
Filed:
Dec. 04, 2002
Daxiong Ji, Brooklyn, NY (US);
Daxiong Ji, Brooklyn, NY (US);
Other;
Abstract
A wide bandwidth mixer has a low temperature co-fired ceramic substrate. The substrate has a top layer, a bottom layer and inner layers. Vias extend through the substrate. A local oscillator balun and an RF balun are located on the inner layers and connected to the vias. An intermediate frequency balun is mounted to the top layer and connected to the vias. Field effect transistors are mounted on the top layer and connected to the local oscillator balun, the RF balun and the intermediate frequency balun through the vias. A matching network is mounted to the top layer and is connected to the vias. The matching network matches the impedance of the field effect transistors to that at the LO port.