RN Electronics to Test Latest Wireless Products
RN Electronics have become the first UK test laboratory accredited to test up to 231 GHz. These so called ‘Extremely High Frequency’ (EHF) bands can be used by products destined for use in the nextgeneration 5G networks. RN Electronics have been accredited by UKAS to test such products to both European and US (FCC) standards.
RN Electronics have the capability to test a range of products that are used in pre-5G networks including; backhaul cells, fixed wireless access points, in-building wireless boosters and smart utility meters.
Many new electronic devices operate in the EHF band between 30 GHz and 300 GHz. Radio waves in this band have wavelengths of 1 mm to 10 mm, which are therefore known as millimetre wave (mmW). Although such devices have short ranges (typically less than 1 km), they can support much faster data transfer than other products.
There are many commercial applications for millimetre wave products including wireless backhaulfor high-speed internet connection, distribution of TV signals, radio astronomy, smart meters and fixed wireless links. Many modern cars include advanced driver assistance systems such as autonomous emergency braking and lane change assist. These rely on high frequency automotive radar.
Due to spectrum constraints ETSI (in Europe) and the FCC (in the US) are phasing out use of 24 GHz radar band by 2022. They have instead opened up frequencies in 77 GHz band. This higher frequency can achieve a 20x improvement in range resolution and accuracy performance. It also allows the use of significantly smaller antenna size. Even higher resolution radar for autonomous vehicle is proposed at around 150 GHz.
Manufacturers are already developing 5G products which operate at high frequencies around 60 –80 GHz. RN Electronics can test 77 GHz products up to the third harmonic thereby considering potential interference with radio astronomy at 231 GHz.
Ofcom have recently released a ‘Review of spectrum used by fixed wireless services’. This included a consultation with stakeholders that found “a key message received on this was the greater focus now being placed on the higher millimetre wave bands above 92 GHz to deliver very high capacity traffic, such as backhaul for the next generation of mobile services.” As a result of this review, Ofcom have announced a consultation that would allow licence free use of the 57 – 71 GHz band for wireless fixed links.
RN Electronics are based in Brentwood, Essex and have been accredited by UKAS to test to European, US & Canadian EMC and wireless standards. RN Electronics have a team of knowledgeable and experienced engineers who can provide solutions to EMC and wireless problems.
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