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High-Frequency PCB Manufacturer

MOZPCB is a high-frequency PCB manufacturer for hardware teams that have outgrown FR-4. We fabricate Rogers, PTFE, and hybrid boards with dielectric control and impedance verification RF designs depend on.

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Service overview

Choosing a high-frequency PCB manufacturer is a materials-and-process decision, not a catalog checkbox. Above roughly 1 GHz, standard FR-4 Dk drift and loss start showing up in filters, antennas, and long channels. MOZPCB fabricates those boards on Rogers, PTFE, and hybrid stackups with disciplined etch control, matched lamination profiles, and impedance coupons your RF team can measure.

High-frequency PCBs are built on laminates engineered for stable dielectric constant (Dk) and low loss tangent (Df) across frequency and temperature—materials like Rogers RO4350B and RO4003C, PTFE-based laminates, and other low-loss systems. Getting RF performance right is less about exotic processes and more about disciplined material handling: controlled etching for trace geometry, correct lamination profiles, and impedance verification against your tables.

Many RF products do not need expensive laminate on every layer. Hybrid stackups place a Rogers or PTFE layer where the RF signals live and standard FR-4 in the digital and power sections, cutting material cost significantly. We review your stackup and recommend where hybrid construction makes sense before quoting.

Every high-frequency quote includes an engineering review of Dk assumptions, copper roughness implications, and impedance tolerance expectations, because a board that meets the drawing but misses the modeled Dk still fails in the tuning lab. Typical laminate and impedance windows sit on the PCB capabilities table; thermal-only designs that do not need RF laminates usually belong on metal-core PCB instead.

What we offer

  • Rogers RO4350B and RO4003C builds—the workhorse laminates for RF below ~40 GHz
  • PTFE and ceramic-filled PTFE laminates for the most demanding microwave designs
  • Hybrid Rogers + FR-4 stackups that keep low-loss material only where RF routing needs it
  • Controlled impedance with documented targets, tolerances, and coupon testing
  • Edge plating, cavity structures, and copper coin insertion subject to design review
  • Low-profile and reverse-treated copper foils where insertion loss budgets are tight
  • Surface finishes suited to RF: immersion silver, ENIG, and ENEPIG per your loss budget
  • RF assembly including connector launch soldering and shield fence placement

Technical capabilities

  • Material systems: Rogers RO4000 series, PTFE-based laminates, and hybrid constructions (availability confirmed per project)
  • Dielectric constant control per laminate datasheet with lot traceability
  • Impedance control typically to ±7%, tighter tolerances reviewed case by case
  • Hybrid lamination of dissimilar materials with matched press profiles
  • Line width and spacing suited to microstrip and grounded coplanar waveguide geometries
  • Back-drilling to shorten via stubs on thicker high-speed builds
  • Test coupons and TDR reports delivered with impedance-controlled orders
High-frequency PCB manufacturing capabilities — typical supported values; final manufacturability depends on laminate availability, copper weight, stackup, feature density, and required RF performance, confirmed during engineering review
Capability Standard support Advanced / conditional support
PCB construction Double-sided, multilayer, and RF multilayer PCB Hybrid RF-laminate + FR-4 stackups
RF materials Rogers RO4003C, RO4350B, and selected PTFE-based laminates Other Rogers, ceramic-filled PTFE, and low-loss materials subject to availability
Layer count Confirmed per laminate and stackup combination Complex multilayer RF builds reviewed by engineering
Controlled impedance ±10% standard ±7% on qualified constructions; ±5% after engineering review
Transmission-line structures Microstrip, stripline, and grounded coplanar waveguide Coupled structures and application-specific geometries
RF copper options Standard electrodeposited copper Low-profile or reverse-treated copper subject to laminate availability
Hybrid lamination Rogers or PTFE combined with FR-4 Dissimilar-material stackups with matched lamination profiles
Via structures Through vias and standard plated holes Blind/buried vias, back-drilling, and via-in-pad subject to stackup review
Surface finishes ENIG and immersion silver ENEPIG or application-specific finishes subject to review
Impedance verification Test coupons and TDR testing when specified Detailed TDR report per an agreed sampling plan
Inspection Electrical test and AOI as applicable Cross-section analysis and additional verification by agreement
Typical laminates we quote for high-frequency builds (confirm lot Dk/Df on the RFQ)
Material Approx. Dk Df (typical) When teams pick it
FR-4 (standard) ~4.2–4.8 ~0.02 Below ~1 GHz, short runs, cost-first digital
Rogers RO4003C ~3.38 ~0.0027 Microwave / RF where flame rating is not required
Rogers RO4350B ~3.48 ~0.0037 Commercial RF that needs UL 94 V-0
PTFE / ceramic PTFE ~2.2–3.0 Very low Highest-frequency / lowest-loss channels
Hybrid Rogers + FR-4 Mixed RF layer only RF on one or two layers; digital/power on FR-4

Common applications

  • 5G and LTE antennas, small cells, and RF front-end modules
  • Radar sensors for automotive, industrial, and security applications (24/77 GHz reviewed per design)
  • Satellite communication and GPS/GNSS receivers
  • RF power amplifiers, filters, couplers, and low-noise amplifier boards
  • High-speed digital backplanes where loss budgets rule out standard FR-4

How the process works

  1. 01

    Requirements intake

    Share Gerber, BOM, drawings, quantities, and any reliability or compliance notes.

  2. 02

    Technical alignment

    We confirm materials, finishes, assembly flow, and test expectations with you.

  3. 03

    Production & inspection

    Manufacturing and assembly follow the agreed traveler with documented checks.

  4. 04

    Delivery

    Packing, labeling, and shipment according to your logistics instructions.

In our factory

  • PCB copper plating line
    Plating line
  • Panelized PCBs after fabrication
    Panelized boards
  • Laminate and core material storage
    Laminate store

Related services

HDI PCB Manufacturing Services PCB Fabrication Services View PCB capabilities Request a quote

Related guides

How to choose PCB materials Controlled impedance PCB manufacturing PCB capabilities table Metal core PCB (thermal alternative) Rogers RO4350B vs RO4003C Rogers PCB vs FR-4 50-ohm PCB trace design guide Microstrip vs stripline vs coplanar waveguide

High-frequency PCB RFQ checklist

Send these up front and the first quote reflects your actual board, not a generic RF placeholder—see the full Gerber and fabrication-data checklist for file-format details.

  • Gerber or ODB++ files with a clear layer map
  • Target operating frequency / frequency range
  • Specified material or acceptable alternates (e.g., “RO4350B or equivalent”)
  • Proposed or requested stackup
  • Design Dk value with test method and source, not just a bare number
  • Copper weight and final surface finish
  • Single-ended / differential impedance targets and tolerance
  • Insertion-loss or phase-matching requirements, if applicable
  • Copper roughness / foil-profile preference (standard vs. low-profile)
  • Required deliverables: TDR report, material CoC, cross-section analysis
  • Connector launch areas and other RF-critical zones to flag for review

FAQ

When should I move from FR-4 to a high-frequency laminate?
As a rule of thumb: below ~1 GHz standard FR-4 is usually fine; from 1–6 GHz it depends on your loss budget and how far signals travel; above ~6 GHz low-loss laminates are the default. FR-4 Dk also varies between lots and across frequency, so designs sensitive to phase or filter tuning may need controlled-Dk material even at lower frequencies.
Rogers RO4350B vs RO4003C—which should I choose?
Both are glass-reinforced hydrocarbon/ceramic laminates that process much like FR-4. RO4350B is flame-retardant (UL 94 V-0) and the usual choice for commercial products that need safety certification; RO4003C has slightly lower loss but is not flame-rated. If you are replacing PTFE for cost reasons, both are strong candidates—share your frequency and stackup and we will advise.
What is a hybrid stackup and how much does it save?
A hybrid stackup laminates a low-loss RF layer (e.g., Rogers) together with standard FR-4 cores for the rest of the board. Since RF laminate can cost several times more than FR-4, limiting it to one or two layers often cuts bare-board cost substantially versus an all-Rogers build, with no penalty to the RF path.
How tight can impedance tolerance be on high-frequency boards?
±10% is standard, ±7% is routinely achievable on controlled-Dk laminates, and ±5% is possible for specific geometries after engineering review. Tighter tolerance means tighter etch control and more coupon testing, which affects cost—specify what your design genuinely needs in the impedance table.
Does copper roughness really matter for my design?
Above roughly 10 GHz, or on long high-speed channels, conductor surface roughness adds measurable insertion loss because current crowds into the rough copper-dielectric interface. Low-profile or reverse-treated foils reduce this. If your loss budget is tight, tell us—foil selection is a quoting-time decision, not something to retrofit.
What should I send a high-frequency PCB manufacturer in the first RFQ?
Gerber/drill, a layer map, the laminate callout (or “advise”), an impedance table with reference planes, frequency of interest, and whether hybrid FR-4 is acceptable. Connector launch notes and copper-foil preference (standard vs low-profile) prevent a second quoting round.

Get started

Ready for the next step?

Send your project files and requirements. We will review stackup, assembly, and test needs, then respond with a clear quotation path.

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