Wireless telemetry system (100) that makes use of integrated wide-bandgap semiconductor technology in a high-temperature environment of a gas turbine engine is disclosed. A wide-bandgap integrated circuitry (WBIC) (98) includes a telemetry transmitter circuitry (106) connected to receive a sensor signal indicative of a condition of the turbine blade. The WBIC may further include power-conditioning circuitry (150) to condition power in a power transfer system (108). A non-stationary antenna (142) may be affixed to the turbine blade. The telemetry transmitter circuitry is connected to the non-stationary antenna to transmit a telemetry signal indicative of the condition of the turbine blade, and a stationary antenna (144) may be affixed to a stationary component to receive the telemetry signal indicative of the condition of the turbine blade. The WBIC is effective for reduction in the footprint and component count compared to telemetry systems involving a discrete circuit implementation.