Hi, i am student of Electronic Engineering, and i am developing a transmitter for a nano-satellite project in my university, based in the CC2544 IC. For regulatory reasons, the band assigned to the project is the S band, in 2260 MHz. The cc2544 (and most trx ics in the market) work in the ISM band: 2.4 ghz.
I was looking for a downconverter circuit to lower the frequency of 2400 to 2260 MHz, but the most mixers of Texas in the 2400 band, work with IF in the 300 - 700 mhz range.
What would be the best way to accomplish this task?
Thanks very much for your help.
Regards,
Darío.