Abstract: The invention relates to a system (1) suitable for being inserted into an anatomical cavity (30), including: a support structure (10), an antenna (10), an assembly (22) of measuring devices, an assembly (26) for transmitting the data of the measurements carried out by the measuring devices (22), which is suitable for communicating with an external entity (E) by means of the antenna (10), and a device (24) for monitoring the assembly of measuring elements and the transmission assembly (26), said antenna consisting of the support structure (10), and the self-contained system being characterized in that the support structure (10) includes a non-conductive junction (20) supporting the assembly (22) of measuring devices, the transmission assembly (26), and/or the monitoring device (24), wherein the junction is suitable for producing an electrical discontinuity within the support structure (10) forming the antenna while mechanically supporting said support structure (10).

Abstract: A photodetector based on buried junctions includes a semiconductor structure with two successive p-n junctions, buried at increasing depths, assembled in pairs in opposition, and defining at least three layers. One of the layers is adjacent to a photosensitive portion of the surface of the photodetector. A reverse bias is applied to the junctions, and the values of at least two internal currents passing through such junctions is detected. The internal currents are generated by received light, with each of the junctions corresponding to a particular wavelength of the received light.