Title: Device for converting frequencies, method of calibrating said device
Application Number: 200510077823 Application Date: 2005.06.09
Publication Number: 1707940 Publication Date: 2005.12.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03D7/18;H03D7/00
Applicant(s) Name: Thomson Licensing Address:
Inventor(s) Name: Le Naour Jean-yves;Lo Hine Tong Dominique;Robert J
Attorney & Agent: lu xiaozhang ma ying
Abstract:
    The invention relates to a device for converting frequencies comprising a local oscillator of fixed frequency and a first mixer with two inputs and an output, a first input receiving the signal to be converted and a second input receiving the signal arising from the local oscillator. It further comprises a second mixer with two inputs and an output, a first input receiving the signal arising from the phase-shifted local oscillator and the second input receiving a dc signal whose value is dependent on the power of the residual spectral component at the output of an adder receiving as input the signals arising from the first and from the second mixer(s) and giving as output a transposed signal. The invention applies in particular in terminals operating in the Ka band.
Time: 16