Precision RF Filters & Custom Microwave Solutions
RF filter platforms, diplexers, multiplexers and integrated assemblies engineered around your frequency plan, performance targets and mechanical constraints.
- AS9100Certified quality system
- Yokohama, JapanManufacturing facility
- 70 datasheetsPublished for catalog parts
- Built to specificationFrequency plan, size and interface
Four product families, one specification process
Pick a standard part from the catalog, or start from your own requirements. Either way the starting point is your frequency plan.
SMT Filters
Surface-mount filters for board-level integration, in LC, ceramic, LTCC, SAW and BAW technologies.
Connectorized Filters
Low-pass, high-pass, band-pass and band-stop filters in connectorized housings: cavity, interdigital, comb-cavity, LC and stripline construction.
Diplexers & Multiplexers
Diplexers, multi-band multiplexers and switched filter banks that split or combine bands on a single port.
Active RF Assemblies
Switched filter banks with an integrated amplifier chain, delivered as one assembly.
Start from what you have
A full specification isn't required. Frequency plan, a reference part number, a mechanical drawing or a rough set of targets is enough to begin a review.
Bring your specification
Passband, rejection template, insertion-loss and VSWR limits, power level, connector or footprint, temperature range.
Technology matched to the job
Cavity and interdigital where low loss and higher power matter; LC, ceramic, LTCC, SAW or BAW where board space dominates. Feasibility is confirmed during review.
Beyond a single filter
Diplexers, multiplexers, switched filter banks and filter-amplifier assemblies built from the same specification.
What decides a filter specification
These are the trade-offs we review first with any requirement.
Insertion loss vs. selectivity
Steeper skirts need more resonators, which adds loss. Give the loss budget and the rejection frequencies together.
Stopband and spurious regions
State the frequencies and levels to be rejected, including harmonics. Wide stopbands often decide the topology.
Return loss / VSWR
In-band match matters in cascaded chains and ahead of active stages. Specify a maximum across the whole passband.
Power handling
CW or peak, and at what temperature. Power level strongly influences technology choice and size.
Temperature and environment
Passband drift over temperature, shock and vibration depend on materials and construction. State the range and any environmental requirements early.
Size and interface
SMT footprint or connector type, outline limits and weight constrain the design as much as the electrical targets.
From requirements to production
Requirements review
Electrical, mechanical and interface requirements are checked against each other and conflicts are raised early.
Topology selection and design
Technology and filter order chosen to meet the template within the mechanical limits.
Simulation, where applicable
Circuit or EM simulation to predict the response before hardware is built.
Prototype
A prototype built to the proposed design for measurement.
RF measurement and validation
Measured response compared with the agreed specification. Environmental or mechanical qualification is scoped per project.
Production and quality control
Production within the company's AS9100 quality system, with checks defined for the project.
Where these filters are used
Typical uses for the filter types in our catalog. This is a list of applications, not a customer list.
Radar and electronic warfare
Preselection, harmonic and image rejection, band separation in receivers and transmitters.
Radio and communication links
Transmit harmonic suppression, receive band selection, diplexing of transmit and receive paths.
Cellular and wireless infrastructure
Band filtering for repeater and distributed-antenna paths, in SAW and BAW formats.
Satellite and navigation
S-band, BeiDou and adjacent-band filtering for receivers and terminals.
Test and instrumentation
Broadband low-pass and high-pass filtering, and band splitting with wide-range diplexers.
ISM and general wireless
Compact SMT band-pass filters for ISM bands such as 915 MHz and 2.4 GHz.
An RF filter company working from your specification
Nexis Microwave supplies RF and microwave filters, diplexers and multiplexers, and filter-amplifier assemblies. The catalog on this site has 70 published datasheets; anything outside it starts as a custom inquiry.
Engineering questions go to the same address as quotation requests, so the people reading your specification are the ones who can say whether it can be built.
| Manufacturer | Nexis Microwave |
| Quality system | AS9100 |
| Manufacturing facility | 527-1 Tayachō, Sakae Ward, Yokohama, Kanagawa 244-0844, Japan |
| Contact | [email protected] |
| Published datasheets | 70 (browse) |
Send the specification, or just the problem
Frequency plan, rejection targets, power and interface. Partial information is fine. We review what you send and reply by email.