RF circuitry 1006 can enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various aspects, the RF circuitry 1006 can include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. RF circuitry 1006 can include a receive signal path which can include circuitry to down-convert RF signals received from the FEM circuitry 1008 and provide baseband signals to the baseband circuitry 1004. RF circuitry 1006 can also include a transmit signal path which can include circuitry to up-convert baseband signals provided by the baseband circuitry 1004 and provide RF output signals to the FEM circuitry 1008 for transmission.