Frequency Map
The frequency band accessible for radar applications strongly depend on the type of application for emitter, transmitter and receiver set-ups. A generalized answer or even warranty for the successful licence of a radar sensor cannot be given at this place. Therefore we encourage our customers to contact their certification body in an early stage of the design phase!
However, a first introduction on frequency band regulation as it applies to radar sensor shall be given at this place. Short Range Devices (SRD) as manufactured by Silicon Radar address a frequency range starting from below 10 GHz up to 320 GHz, commonly known as radio frequencies. Typical applications deploy frequencies of the Industrial, Scientific and Medical (ISM) frequency bands centred around 24,15 GHz, 61,25 GHz, 122,65 GHz and 245,00 GHz listed as complete overview of bandwidth details on page https://siliconradar.com/wiki/ISM_Bands. For applications such as tank level probing radar (TLPR) more relaxed frequency restrictions apply as listed on the same page.
Detailed information on frequency allocation are given by several standardisation bodies which publish tables and overview documents for the region of their responsibility. Here the International Telecommunication Union (ITU) addresses three regions of countries in Europe, America and Asia which are summarized in the following chart: https://www.itu.int/en/ITU-R/terrestrial/broadcast/PublishingImages/bcd%20images/ITU%20regions.jpg Local differences between individual countries need to be taken into consideration too - again standardization remains an ongoing challenge. Nevertheless there is a tendency for harmonization of frequency allocations.
European Area:
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
North America:
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 An overview on one page is given in a spectrum wall chart under https://www.ntia.doc.gov/files/ntia/publications/january_2016_spectrum_wall_chart.pdf
ITU conference WRC-19:
New information and final releases are also expected from the conference of the ITU conference on radio regulations World Radio communication 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
Disclaimer:
The information above are for orientation only. It cannot replace individual information and efforts for the release of sensor solutions on cutomer side. No warranty is given, errors and omissions excepted.
