Using an amplifier bidirectionally

I'm sure there's a solution to this, but I don't know it. I have a chip that is both transmitting and receiving from a single antenna (using TDD). I want to amplify the transmitted signal, but I'm not sure how to add a PA that won't interfere with receiving signals. Is there a special kind of amplifier that I can buy from Minicircuits or something that will amplify a signal on one port but pass through a signal on another? How is this done?

Hi Aloishis
It is so simple ! but for more helping you you should tell me about frequency of operation and maximum out put power of your transceiver and maximum power that you want . but for my opinion you can easily open the antenna and then use an amplifier and then add antenna . another method is kind of relay method for RF systems , but all of these methods are independent to your additional informations .
Best Wishes
Goldsmith

You'll typically need an external Rx/Tx switch (e.g. GaAs device from Hittite or RFMD) when adding a PA or LNA to a transceiver chip. Possible solutions are often discussed in application notes of transceiver manufacturers.

u can use power splitter, isolator, PA and power combiner.