Radio frequency circuit supporting carrier aggregation

A radio frequency (RF) circuit comprising:

• a time-division duplex (TDD) receive filter coupled to a TDD band low-noise amplifier(LNA) and configured to:
• receive a TDD RF receive signal in a TDD band;
• and
• pass the TDD RF receive signal to the TDD band LNA;
• a TDD transmit filter configured to:
• receive a TDD RF transmit signal in the TDD band from a high-band power amplifier (PA);
• and
• pass the TDD RF transmit signal to a front-end circuit;
• a first filter bank comprising at least one first frequency-division duplex (FDD) receive filter configured to:
• receive at least one first FDD RF receive signal in at least one first FDD receive band;
• pass the at least one first FDD RF receive signal to at least one first FDD band LNA;
• at least one TDD transmit-receive filter configured to receive at least one second TDD RF receive signal in at least one second TDD band and pass the at least one second TDD RF receive signal to at least one second TDD band LNA;
• a second filter bank comprising at least one second FDD receive filter configured to:
• receive at least one second FDD RF receive signal in at least one second FDD receive band;
• pass the at least one second FDD RF receive signal to at least one second FDD band LNA;
• and
• a third filter bank comprising at least one third FDD receive filter configured to:
• receive at least one third FDD RF receive signal in at least one third FDD receive band;
• pass the at least one third FDD RF receive signal to at least one third FDD band LNA;
• wherein the TDD receive filter and the TDD transmit filter are provided in separate dies and configured based on different insertion loss, interference rejection, and impedance match requirements.