Qorvo Targets 5G Radio Complexity With New Wideband RF Switch Family

RF routing gets harder to manage as 5G radios support more bands and wider bandwidths. Designers still need isolation and signal integrity, but the usual ways of achieving them can introduce their own problems.

Many systems still rely on cascaded switches or multiple narrowband devices to cover different paths and frequency ranges. These devices work, but they introduce insertion loss, occupy board space, and make the design harder to tune. They can also affect linearity, which matters in high-performance radio paths such as digital pre-distortion feedback.

Qorvo designed its new wideband RF switch family to simplify multi-band radio architectures while supporting high-isolation signal routing across applications ranging from 5G infrastructure to industrial and drone communications. Image used courtesy of Qorvo

Qorvo is trying to simplify that problem with a new family of wideband high-isolation RF switches. The devices cover 50 MHz to 10 GHz and are designed to replace more complex switch arrangements with fewer parts.

Replacing Cascaded Switch Paths

The main idea is simple: instead of stacking switches to get enough isolation, Qorvo is putting that isolation into a single device. The QPC6144 is the clearest example. It is an absorptive SP4T switch that delivers more than 65 dB of isolation in one package. For designers working on 5G radios, that can reduce the need for cascaded switch stages in high-isolation paths.

Functional block diagram of the QPC6144. Image used courtesy of Qorvo

That matters because every added switch can introduce loss. It can also create more layout work and more chances for signal degradation. The design can stay cleaner while maintaining isolation across a wide frequency range by consolidating the function. Qorvo points to DPD feedback and calibration paths as key use cases in which signal quality and linearity are especially important.

Wideband Coverage in Fewer Devices

The family is built around wideband operation from 50 MHz to 10 GHz. That range helps cover multi-band radios without forcing designers to use several narrowband parts. This is especially relevant as systems move toward broader 5G support and emerging spectrum such as FR3. A wider switch platform gives engineers more room to reuse designs across different paths and frequency bands.

The switches are absorptive, meaning unused RF ports are terminated rather than left reflective. That helps manage signal behavior in off states and supports cleaner routing in high-performance systems.

All three devices also use Silicon-on-Insulator technology and support JEDEC-compatible 1.2-V, 1.5-V, and 1.8-V control logic. They require only a single DC supply through an internal negative-voltage generator, while still allowing an external negative supply if needed.

Three Devices, Different Roles

The QPC6144 sits at the high-isolation end of the family. It is a symmetrical SP4T switch with more than 65 dB of isolation and a typical input IP3 of +60 dBm. It comes in a compact 4 mm × 4 mm package and is aimed at DPD feedback, calibration, and other high-isolation paths in mMIMO and macro radio systems.

The QPC6122 takes a smaller routing approach. It is an absorptive SP2T switch with 55 dB of isolation and a typical input IP3 of +65 dBm. Its 2 mm × 2 mm package makes it a better fit in tight board spaces, such as compact RF modules or drone communication systems.

Functional block diagram of the QPC6122. Image used courtesy of Qorvo

The QPC6188 provides a more flexible SP4T option. It covers the same 50 MHz to 10 GHz range, offers 50 dB of isolation, and also has a typical input IP3 of +60 dBm. It is packaged in a 3 mm × 3 mm LGA and is designed to fit general wideband routing across infrastructure, industrial, drone, and test systems.

Reducing RF Design Friction

The value of this new family isn't in any single spec. It's in the ability to lower the overall number of RF switching components while still supporting high isolation, low loss, and linearity across a broad frequency range. 

High-isolation RF switches are commonly used in 5G infrastructure, where multiple frequency bands and signal paths must operate without interference. Image from Adobe Stock (under license)

That alone can lower BOM complexity and simplify board layouts. It also gives engineers a more consistent switching platform across various radio paths, rather than mixing several narrowband devices. That consistency matters for systems where RF routing keeps getting more complicated.

Where It Fits

Qorvo is positioning the family for 5G infrastructure, mMIMO radios, macro base stations, industrial systems, drones, and RF test equipment. Those are all applications where bandwidth, isolation, and clean signal routing are difficult to balance. The new family does not remove every RF design challenge. But it does target one of the messier parts of the architecture. Instead of building high isolation through cascaded switching, designers can get more of that capability in a single device.