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:
Mar. 09, 2004
Filed:
Jun. 14, 2000
Gerald Oberschmidt, Bruchsal, DE;
Veselin Brankovic, Esslingen, DE;
Dragan Krupezevic, Stuttgart, DE;
Masayoshi Abe, Kanagawa, JP;
Thomas Dölle, Stuttgart, DE;
Tino Konschak, Stuttgart, DE;
Other;
Abstract
A RF receiver for modulated RF signals based on a N-port junction ( ) providing LO/RF isolation is proposed. N thereby is an integer larger than two, such that the N-port junction ( ) can be preferably a three port, four port, five port and six port junction. The N-port junction ( ) supplied with a first RF signal at a first input ( ) and with a second RF signal originating from a local oscillator ( ) at a second input ( ). An isolation block ( ) comprising an active circuitry ( ) is comprised in the N-port junction for isolating the second input ( ) from the first input ( ). Thereby can be ensured that the LO signals are significantly attenuated at the RF port ( ).