Signal Processing in the Microwave Front-End Radiolink for Logging-While-Drilling through the Borehole Pipes (1032)

X-band equipment for LWD telemetry along pipes regarded as dielectric waveguides is proposed. A hybrid-integrated power amplifier-transmitter for this purpose is described. Drilling pipes provide a new communication channel for telemetry although the potential issues related to large attenuation in the soil and external disturbances are to be carefully assessed beforehand.