做射频LNA VCO PA 那个市场上需求大呢，比较好找工作？

最终全部都要做的。

单独来看，PA可以做单个芯片卖，LNA与VCO一般没有单块芯片的，现在都是集成的，不过只要做了射频的，最终都是要做的

PA可以做单个芯片卖 , due to power efficiency and linearity, PAusually exist in standalone component with GaAs or SiGe technology.
All RX chain can be integrated in CMOS process

CMOS PA is a big challenge to get large power. I think you can try all of the above three.

CMOS PA is a big challenge to get large power. I think you can try all of the above three.

我觉得会问这个问题说明你的阶段，无需考虑这个问题，做哪个都一样

无需考虑这个问题

。