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QAXIAL RF cable assemblies, coaxial cables, connectors, adapters and passive RF components for test, measurement, laboratory and system integration applications.
QAXIAL is the Welco brand dedicated to RF interconnections. It is designed for customers who need to combine high performance, controlled build quality and fast selection paths through configurator, catalog and technical support.
Repeatable performance, long-term stability and attention to interface quality help keep the RF chain reliable.
From coaxial to waveguide
A range built to connect instruments, modules and subsystems where frequency, interface and signal stability are critical.
From brand to product selection
QAXIAL products in the RF-Microwave catalog: configurable cables, product families, available categories and technical requests managed by Welco.
QAXIAL is designed for customers who need to move from an application requirement to a concrete selection: a cable assembly, an adapter, a termination, a passive RF component or a waveguide transition.
RF and microwave laboratory setups.- Test benches, prototypes and integration projects.
- Interfaces where loss, VSWR and repeatability really matter.
Configure your QAXIAL cable online
Choose cable family, side A connector, side B connector and length. The request is already structured, so Welco can quickly evaluate configuration and availability.
- 1 Define the cable type according to frequency, flexibility, stability and use.
- 2 Choose the interfaces: SMA, N, 2.92 mm, TNC, BNC or other available configurations.
- 3 Set length and application details, then send the request to Welco.
Catalog assemblies
Browse RF cable assemblies already available in the RF-Microwave categories.
Cable assembliesFor phase-matched, phase-stable, ruggedized or non-standard requests, add frequency, length, interfaces, quantities and operating conditions.
Main QAXIAL product families on RF-Microwave
The families are grouped by function: cables, interfaces, passive RF components and waveguide. Controlled constructions, precision interfaces and application-oriented selection help identify the correct solution faster.
Each card links to the available category or to Welco contact for specific requests.
You can create a custom request or browse assemblies already available in the catalog.
RF coaxial cables
Coaxial cables for RF, microwave and mmWave connections, available in different mechanical constructions and performance levels.
flexible semi-rigid phase-stable
RF connectors and PCB transitions
Coaxial connectors and launch solutions for RF interfaces, coaxial-to-PCB transitions and controlled signal paths.
SMA N 2.92 mm
RF and microwave attenuators
Connectorized attenuators for signal level control, calibration chains, protection and RF integration.
coaxial measurement signal level
Circulators and isolators
Non-reciprocal components for signal routing, isolation and source protection in RF and microwave chains.
isolation protection RF chain
Filters, DC blocks and bias tees
Passive RF components for signal conditioning, frequency selection, DC isolation and bias injection.
DC block bias tee filtersWaveguide components
Transitions, adapters, attenuators, couplers, horn antennas, switches and loads for microwave and mmWave systems.
waveguide mmWave transitions
Accessories for installation, protection and maintenance
Torque wrenches, protective caps, antenna surge protectors and various accessories complete the installation, maintenance and management of RF interfaces. They are support elements, but they become important when the setup must remain reliable over time.
QAXIAL selection support
Welco can respond with targeted configurations, compatible alternatives and useful indications when the choice depends on the application.
- Operating frequency and useful bandwidth.
- Required interfaces: SMA, N, 2.92 mm, BNC, TNC, waveguide or others.
- Power, attenuation, return loss, isolation or other critical parameters.
- Mechanical constraints, cable length, bend radius and operating environment.
- Indicative quantities, urgency, product to replace or setup diagram.
Configure a cable or request support for QAXIAL products
Use the configurator for an RF cable assembly or contact Welco with technical specifications, frequency, interfaces and indicative quantities.
For complex requests, attach a system diagram, setup photos or the code of the component to replace.