Qorvo Q&A on Connectivity: Reducing Wi-Fi Interference

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Qorvo Q&A on Connectivity: Reducing Wi-Fi Interference [Copy link]

Q: What are the main concerns for customers regarding interference?
For 2.4 GHz Wi-Fi, both interference and coexistence are very important
Primarily because our mobile products emit many surrounding signals, such as Bluetooth, wireless speakers, microwave ovens, etc. RF filter technology is the only way to address these interferences.

Q: How does Qorvo help customers address these interferences?
A: Our customers rely on high-quality service to sell their products. Products that provide high-quality service can generate the greatest revenue (average revenue per user - ARPU), in part because of reduced service calls, truck rolls, and potential costs of providing additional hardware/software solutions to solve user experience issues. For example, some of our digital media customers produce and sell indoor/outdoor wireless speakers, which must transmit high-quality service over long distances without interference. Other nearby signals, such as Bluetooth or cellular bands, also need to be attenuated to reduce interference. We guide customers to use our bandedge and coexistence filters (available in discrete and fully integrated front-end modules) to solve this problem.

Q: How does Qorvo help customers address these interferences?
A: Our customers rely on high-quality service to sell their products. Products that provide high-quality service can generate the greatest revenue (average revenue per user - ARPU), in part by reducing service calls, truck roll costs, and the potential cost of providing additional hardware/software solutions to solve user experience issues. For example, some of our digital media customers produce and sell indoor/outdoor wireless speakers, which must transmit high-quality service without interference over long distances. Other adjacent signals, such as Bluetooth or cellular bands, also need to be attenuated to reduce interference. We guide customers to our bandedge and coexistence filters (available in discrete and fully integrated front-end modules) to solve this problem.

Q: What solutions does Qorvo recommend for customer application interference issues?
A: For 2.4 GHz, coexistence and bandgap filters are required to reduce unwanted interference. Some of the top products we recommend to customers include the 885136 bandgap filter and the 885128 coexistence filter. These two discrete filter solutions provide low insertion loss, steep bandedges and high attenuation in the out-of-band region. The 885136 has a maximum insertion loss of 0.8 dB and high attenuation/rejection at 2390 MHz, 2483.5 MHz, bands 38/40/7 and 41. The 885128 has a typical insertion loss of 1.3 at Wi-Fi bands and bandgap, and high rejection at LTE, bands 7, 38, 41 and 40. We also offer fully integrated front-end solutions with LTE coexistence filtering and/or bandgap filtering, such as the QPF7221. This component provides a complete solution in a single front-end package for Wi-Fi 802.11b/g/n/ac/ax systems. This front-end module is only 3 x 4.5 mm in size, has high transmit/receive gain, and integrates high-performance, temperature-stable BAW filters into the module. The BAW filters provide excellent LTE coexistence receive immunity for maximum Wi-Fi coverage. Recently, we also added the QPF7219 to the iFEM family. It features a transmit and receive 802.11ax module with integrated FCC bandgap BAW filters, regulators, transmit and receive switches, and LNA with bypass capabilities.

Q: How do Qorvo's coexistence and bandgap products differ from others on the market?
A: For bandgap filtering, we are currently the only company offering this type of Wi-Fi BAW filter. For bandgap and coexistence filtering, we offer it in discrete and fully integrated front-end modules. We recognize that Wi-Fi products are getting smaller and thinner, so all components must be very small. We use customer feedback and market information to drive product innovations such as small form factor, greater Wi-Fi coverage, and elimination of out-of-band interference.

Tony's summary: Our customers want products that can be plug-and-play without doing additional design so that they can meet strict schedule requirements and easily pass regulatory certification. Integrating BAW filter technology in the RF front end meets these customer expectations. In addition, our filters can solve interference problems, and when customers put filters in small form factors, they can meet stringent design requirements over a -40C to +105C temperature range, all thanks to our unique BAW technology. The

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alan000345

Qorvo's products are getting better and better, WiFi6 is also very mature, and the Q&A provided this time is also very thorough. After reading it, I feel that their modules can solve many difficult problems.

火辣西米秀

alan000345 posted on 2020-3-31 13:54 Qorvo's products are getting better and better, and WiFi6 is also very mature. The Q&A given this time is also very good. After reading it, I feel that their modules can solve many difficult problems...

Qorvo's products are very easy to use