Cable Assembly
RF cable assembly is a family, not a single part. We build custom coaxial, micro-coaxial, Fakra, SMA and Rosenberger assemblies with VSWR and return-loss testing, impedance alignment, and approved-alternate sourcing when an RF connector is constrained — with each type detailed on its own page so you can go straight to the one you need.
Application Context
Real customer engagements, anonymized to industry and region — no client names are published.
Thermal-imaging OEM — micro-coax impedance test alignment. A micro-coaxial assembly program needed its impedance and test method aligned before a production release could be signed off. Getting the test setup and acceptance agreed up front let the assemblies move into production without a measurement dispute later. Read the full case study →
Thermal-imaging OEM — IPEX alternate validated to beat a shortage. The originally specified IPEX connector was out of stock, threatening supply continuity for a fine-gauge micro-coax assembly. We validated an alternative connector rather than let the program stall, keeping the build on schedule. Read the full case study →
Both are the everyday reality of RF work — impedance and test alignment, and connector availability. See more wire harness case studies.
RF Assembly Types
Each RF family has its own dedicated page with connector, impedance, and test detail — start with the one that fits your application.
RG and LMR coaxial assemblies for signal and RF power, with 50/75-ohm impedance control, connector sourcing, and continuity plus RF testing to the approved plan.
Fine-gauge micro-coax for board-to-board, camera, LVDS and sensor links, with impedance test alignment and fine-pitch connector handling.
Automotive Fakra RF assemblies with keyed/coded housings, correct color-coding, and shielded coax construction for infotainment, GNSS and camera systems.
Connectorized SMA and Rosenberger RF assemblies with torque-controlled termination and RF verification for test, instrumentation and wireless equipment.
Engineering Challenges
Impedance (50/75 ohm) and the VSWR/return-loss test method are agreed before production so a measurement dispute does not surface at release. Test setup, frequency and limits are fixed in the RFQ.
RF connectors (IPEX, Fakra, SMA, Rosenberger) can go on allocation. We validate and propose approved alternates rather than let a shortage stall a fine-gauge micro-coax or automotive RF program.
Shield termination, braid coverage, and bend-radius control are handled to the approved design because on RF work they change performance, not just appearance.
Coax, micro-coax, Fakra, SMA and Rosenberger are not interchangeable. We route you to the correct assembly family instead of forcing one part number onto every RF need.
Technical Capabilities
Manufacturing Process
Quality & Testing
RF assemblies receive continuity and the agreed RF measurements — VSWR, return loss, and insertion loss over the specified frequency range — with impedance alignment and shield-termination checks, documented so engineering and supplier quality work from the same test evidence at release.
Why WHP
RF work fails quietly — a wrong impedance or an unspecified test method does not show up until integration.
Impedance and the VSWR/return-loss method are agreed at RFQ, so an assembly is not released against an assumption that fails at your bench.
When an RF connector is allocated we validate an approved alternate and keep the program moving — the same discipline shown in the projects above.
Coax, micro-coax, Fakra, SMA and Rosenberger each have a dedicated page and a distinct build; we point you to the correct one for the application.
VSWR and return-loss results travel with the lot, so RF performance is documented rather than implied from a build.
RF cable assembly still needs shared quality language, so buyers can align RFQ wording with IPC/WHMA-A-620 workmanship, UL-758 wire context, and documented ISO 9001-style controls before supplier comparison.
FAQ
OEM Program Entry
Send the drawing, connector and cable specs, impedance and test requirements, and quantity. We will return connector sourcing, approved alternates, a test plan, and a quote — or point you to the right RF assembly family.
Related Capabilities
Go straight to the dedicated page for your RF assembly type.
TL;DR
RF cable assembly is a family: coax, micro-coax, Fakra, SMA and Rosenberger — each with its own page.
Impedance (50/75 Ω) and the VSWR/return-loss test method are agreed before production.
When an RF connector is allocated, we validate an approved alternate instead of stalling.
RF measurement results travel with the lot as real evidence, not a continuity claim.
Applications
From automotive Fakra to lab-grade SMA — matched to the impedance, frequency and test your application needs.
SMA and Rosenberger connectorized assemblies for instrumentation, RF test benches and lab equipment.
Fakra assemblies for infotainment, GNSS, telematics and camera links with keying and color codes.
Coaxial RG/LMR assemblies for antenna feeds, base-station and wireless equipment with impedance control.
Micro-coax assemblies for cameras, thermal imaging, medical scopes and high-density sensor links.
Assemblies where VSWR, return loss and phase matter — verified to the approved frequency range and limits.
Coaxial power feeds where connector rating, shield termination and bend radius are controlled to the design.
RFQ Package
Standards
RF cable assembly still needs shared quality language. Public references help buyers align RFQ wording with IPC/WHMA-A-620 workmanship expectations, UL wire context, and documented ISO 9001-style controls before supplier comparison.
Background for the association behind cable and wire harness workmanship standards used in supplier-quality discussions.
Reference context for buyers reviewing wire, insulation, and component safety language in an RF cable RFQ.
Reference context for documented quality-management systems and repeatable release records.
Reviewed by
Founder & General Manager, WellPCB