Will a CC1120 IC be burnt during transmission if antenna is removed
The CC1190 can withstand an input level of 10dBm, and have an SWR of about 10 without antenna. Since power levels are relatively low (27dBm max) you will not damage the amplifier. I use a similar design to the evaluation board and without any antenna connected, no damage happened, however, I did experience an increased current consumption of ~350mA without an antenna, compared to normal TX current of ~250mA.