Nexis Microwave is a boutique engineering house designing SMT and connectorized RF filters — plus diplexers, multiplexers and fully custom RF assemblies — built for clean signal integrity and exacting performance.
Nexis Microwave was founded as a boutique engineering house for RF and microwave filtering — the kind of practice where every cavity, every coupling and every dielectric choice is treated as a first-order design decision, not an afterthought.
We work in the tradition of Europe's most rigorous RF design houses: small, senior teams, direct engineer-to-engineer communication, and a refusal to ship anything that hasn't been simulated, prototyped and validated against the client's real operating conditions.
Every project starts from the customer's spec — not a catalog page. That is what "tailor-made" means to us: filters and RF assemblies cut precisely to the signal you need to protect.
Tight tolerances and repeatable performance, verified in simulation before a single prototype is cut.
Clean passbands, controlled insertion loss and rejection engineered for the environment your system actually operates in.
No forced-fit catalog parts. Every design begins with your frequency plan, footprint and power requirements.
Designed for qualification — thermal, mechanical and environmental robustness built in from the first revision.
Three core filter platforms, each engineered from first principles and adapted to your exact frequency, footprint and power requirements.
Compact surface-mount filters for board-level integration, in LC, Ceramic or LTCC construction depending on your frequency, size and performance targets.
Request DatasheetStandalone filters in connectorized housings, engineered as Low-Pass, Band-Pass, High-Pass or Band-Stop topologies to your exact frequency plan.
Request DatasheetMulti-channel frequency-combining assemblies built from our filter platforms, for systems that need to split or combine multiple bands on a single port.
Discuss a SpecEvery custom RF project follows the same disciplined path, whether it's a single cavity filter or a multi-band multiplexer assembly.
We start with your frequency plan, insertion loss, rejection and mechanical constraints.
Full electromagnetic simulation and topology selection before any hardware is cut.
Rapid prototype builds to validate simulated performance against real-world results.
Full RF characterization plus environmental and mechanical qualification as required.
Transfer to production with a controlled process and consistent unit-to-unit performance.
Have a spec that doesn't fit a catalog part?Send us your frequency plan and constraints — our engineers will respond directly, not through a sales queue.
Start a Custom ProjectDesigns built around your spec from day one — not adapted from a fixed catalog.
Every design is optimized for the passband and rejection performance your system depends on.
A boutique team means you talk directly with the engineers designing your filter.
Nothing ships without simulation, prototyping and full RF test against your operating conditions.
Whether you need a standard cavity filter or a fully custom RF assembly, our engineers will respond directly with next steps.