Patent Number: 6,297,649

Title: Harmonic rejection load tuner

Abstract: The present invention discloses a harmonic rejection load pull tuner. Thetuner of the invention has a large-band tuner having an input and anoutput, and a transmission line having a longitudinal axis. Thetransmission line has an input connected to the output of a DUT and anoutput connected to the input of the large-band tuner. In parallel withthe transmission line is at least one stub, the at least one stub having alength adapted to reflect out an nth order harmonic of a base frequency,where n is an integer greater than 1. The tuner of the present inventioncan be used to perform input or output characterisation (or both) of aDUT, by selectively reflecting out at least one harmonic frequency of thebase frequency. Consequently, the characterisation of the DUT is improved,since the effects of the harmonics are considerably reduced. The presentinvention also concerns a method for performing input or outputcharacterisation.

Inventors: Tsironis; Christos (Kirkland, CA)


International Classification:

Expiration Date: 10/02/2013