Short Range Devices (SRD) as manufactored by Silicon Radar address a frequency range starting from below 10 GHz up to 300 GHz. Starting point for radar applications are the ISM frequency listed in https://siliconradar.com/wiki/ISM_Bands.
For detailed information on frequency allocation several standardisation bodies publish tables and overview documents in which all allocations and use case are listed.
Several documents are published.
For the european area there is a publication by the European Conference of Postal and Telecommunications Administrations (CEPT) which can be found at http://www.ok2kkw.com/00003016/ctu/ercrep025.pdf
The summary for the american market is published, among others, in the frequency table FCC ONLINE TABLE OF FREQUENCY ALLOCATIONS open to public under https://transition.fcc.gov/oet/spectrum/table/fcctable.pdf
New information and final releases are also expected from the conference of the ITU conference on radio regulations World Radiocommunication Conference 2019 (WRC-19), Sharm el-Sheikh, Egypt, 28 October to 22 November 2019. Details can be found in https://www.itu.int/en/ITU-R/conferences/wrc/2019/Pages/default.aspx