Need transceiver design using ansoft designer for ook modulation at 2.4Ghz

hi..
i am doing a project on designing a transceiver in ansoft designer in OOK modulation for 2.4Ghz
i have done simulation of simple transceiver (transmitter and receiver separately), but I'm not able to do it in OOK modulations...
can anyone plz help me in designing transceiver in ansoft desingner or any similar file or tutorials

thanks....