The auctioning of the C-band for 5G use has raised concerns in North America that signals could interfere with aircraft altimeter operations. 5GTW asked a filter engineer and a test expert if there’s a problem and how to fix it.
BAW filters keep RF interference out
Qualcomm’s ultraBAW filters cover 2.7 GHz to 7.2 GHz, keeping cellular and Wi-Fi in place. Qualcomm explains how the filters work. Each time a government auctions off a slice of spectrum for cellular use, the airwaves get more crowded as users begin occupying the new frequencies. In the days when spectrum wasn’t so scarce, cellular…
3 Things to know when transitioning to mmWave
Get a handle on the differences between working at the traditional sub-6 GHz frequencies and mmWave frequencies. The old design techniques won’t work in this new world.
IMS 2021: Components to test equipment
A hybrid International Microwave Symposium (IMS) took place live in Atlanta and online two weeks later in June 2021. See a selection of companies and product — mostly 5G — showcased in the virtual version.
IMS2021: Live event was never in doubt
While the International Microwave Symposium will also hold a virtual conference, exhibitors insisted on a live event albeit with COVID-19 restrictions.
5G RF filters need more innovation
RF filters have always been an important part of mobile devices, but in the 5G era, they are the key to unlocking the promised high bandwidth that will drive many 5G use cases.
Multilayer band-pass filter handles millimeter wave bands in 5G networks
TDK Corporation has expanded its lineup of high-frequency multilayer products with the world’s first multilayer band-pass filter for the 28 GHz band in 5G mobile communication networks. The new high-frequency component is based on TDK’s LTCC (low-temperature co-fired ceramic) material and precise multilayer technology, which enable a low insertion loss of just 1 dB, a…
5 things you need to know about 5G filters
by Robert Hammond, Resonant CTO, and Mike Eddy, Resonant VP Product Marketing & Business Development 5G networks operate in new and higher frequency bands, requiring new underlying technology and performance standards for RF filters. The industry must develop new resonating structures in order to filter at these high frequencies, and large bandwidths, with enough power…