Figure 1

Ultra-broadband RF front-ends demand precise spectral partitioning across contiguous bands while preserving low noise figure, linearity and isolation. In satellite communications payloads, defense radar and EW systems and broadband test platforms, designers must route multiple channels through compact assemblies without incurring the cumulative insertion loss and variability associated with discrete filter banks. Traditional implementations increase board area, alignment complexity and interconnect loss, directly impacting system sensitivity and transmit efficiency.

Nuvotronics’ μMUX multiplexer series addresses these challenges by integrating high performance filtering into compact, surface-mountable modules based on PolyStrata® micro miniature coax technology. This architecture delivers quasi-coaxial electromagnetic behavior in a planar format, enabling low insertion loss and high out-of-band rejection with excellent channel-to-channel isolation. The result is predictable, repeatable RF performance from DC through 40 GHz, depending on configuration, with low part-to-part variation to support high volume production.

The PSM0206B3S triplexer partitions DC to 2 GHz, 2 to 3.5 GHz, and 3.5 to 6 GHz within a 25.7 x 26.5 mm SMT package weighing 3.7 g, making it well-suited for multi-band L- and S-Band architectures. The PSM0640B4S quadplexer spans DC to 6 GHz, 10 to 18 GHz and 18 to 40 GHz in a 14.7 x 24.7 mm footprint, weighing just 1.8 g, enabling dense, wideband channelization in SWaP-constrained platforms. For expanded channel counts, the PSM0218B5S five-channel device covers DC to 18 GHz across five contiguous bands in a 26 x 26.5 mm package.

All μMUX devices support standard SMT assembly, simplifying integration into high-density RF assemblies and enabling scalable, manufacturable multi-channel receiver and transmitter architectures. Available at RFMW.

RFMW
San Jose, Calif.
(408) 414-1450
www.rfmw.com