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. 11, 2011
Filed:
May. 23, 2008
Hervé Teillet, Maisons Alfort, FR;
Yves Guillerme, Saclay, FR;
Rafik Hassen-khodja, Vaureal, FR;
Thales, , FR;
Abstract
The present invention relates to a bidirectional frequency mixer, as well as a radiofrequency transceiver system including at least such a mixer. The mixer includes two ports separated in intermediate frequency FI, one for the reception, the other for the emission and a common port in frequency RF both for reception and for emission. It also includes at least fours mixing cells and three phase shifting means of signals used to remove the undesirable frequencies generated by the mixing cells. The mixer enables a rejection of the frequencies produced by a local oscillator in transmitting phase and a rejection of the image phase in receiving phase to be preformed. The invention is in particular applicable to designing microwave integrated circuits, in particular in millimetric frequency band.