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. 25, 2008
Filed:
Sep. 24, 2004
Sean Cremin, Cork, IE;
Jason Lynch, County Cork, IE;
Brendan Lyons, County Cork, IE;
Farran Technology Limited, Cork, IE;
Abstract
An upconverter receives an intermediate frequency (IF) modulated signal on a port () and a local oscillator carrier signal at a port (). A comb generator (-) generates a comb-like waveform from the carrier signal, the waveform having a peak for each of a number of multiples of the carrier fundamental. A bandpass filter () selects one of the comb peaks and there is further multiplication at a quadrupler (). The modulated signal (IF) and the multiplied carrier are mixed in a mixer () to provide a high frequency upper sideband (LO+IF) output. The output is transmitted in a waveguide () which is integral with the casing () and which performs high frequency filtering by virtue of its shape.