CPC H04B 1/04 (2013.01) [H04B 1/0057 (2013.01); H04B 2001/0425 (2013.01); H04B 2001/0491 (2013.01)] | 20 Claims |
17. An electronic device comprising:
a controller; and
a communication interface comprising,
a converter configured to convert a baseband signal into an analog signal,
a first mixer configured to convert the analog signal into an intermediate frequency (IF) signal based on a first oscillation frequency,
a second mixer configured to convert the IF signal into a radio frequency (RF) signal based on a second oscillation frequency to obtain an output signal,
an RF filter configured to filter the output signal to obtain a filtered output signal, and
a driving amplifier configured to amplify the filtered output signal, wherein the RF filter comprises,
a first inductor connecting a first node of a differential output end of the second mixer to a first intermediate node,
a second inductor connecting a second node of the differential output end of the second mixer to a second intermediate node,
a third inductor connecting the first intermediate node to the second intermediate node, and
a capacitor in parallel with the third inductor; and
processing circuitry configured to adjust a capacitance value of the capacitor based on a capacitance value of the driving amplifier.
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