PCB manufacturing PCB manufacturing
Home > Blog

Posts Tagged ‘RF Microwave PCB manufacturer’

Top 10 RF Microwave PCB Manufacturers for High-Power Applications
Thursday, December 4th, 2025

High-power RF and microwave systems—such as RF amplifiers, 5G base stations, radar modules, satellite communication units, and microwave transmitters—require PCBs that can maintain stable performance under intense thermal and electrical stress. Ordinary FR-4 boards simply cannot handle the dielectric loss, heat generation, tight impedance requirements, and frequency-dependent behavior seen above 1 GHz.

In this guide, we highlight the Top 10 RF microwave PCB manufacturers for high-power applications—ideal for RF amplifiers, radar systems, 5G infrastructure, satellite communication, and other high-frequency uses.

Top 10 RF Microwave PCB Manufacturers for High-Power Applications

Why You Need a Specialized RF Microwave PCB Manufacturer?

High-power RF designs introduce challenges such as elevated heat, strict impedance requirements, and performance losses at microwave frequencies. Manufacturers must have:

  • Expertise in low-loss materials like Rogers, Taconic, or PTFE-based substrates
  • Multi-layer RF/microwave stackup engineering
  • High-precision etching and drilling for mmWave designs
  • Support for heat-sink integration, metal-backed PCBs, or thick-copper construction
  • Robust quality systems for aerospace/defense-grade reliability

Choosing the right vendor ensures stable power handling, lower insertion loss, and consistent performance across your operating frequency range.

Top 10 RF Microwave PCB Manufacturers for High-Power Applications

1. American Standard Circuits (ASC)

ASC is one of the most experienced RF microwave PCB manufacturers in North America. They specialize in complex high-power designs, including:

  • Metal-backed PCBs for heat dissipation
  • PTFE-based microwave laminates (Rogers, Taconic, Isola)
  • Tight impedance control
  • High-layer-count microwave PCBs

Best for: High-power RF, metal-backed microwave PCBs, aerospace/defense

Their engineering support for thermal-management and high-frequency performance makes them ideal for RF amplifiers and transmitters.

Top 10 RF Microwave PCB Manufacturers for High-Power Applications

2. HT Global Circuits

HT Global produces RF microwave PCBs operating up to 77 GHz and beyond. Their strengths include:

  • Multi-layer PTFE stackups
  • 2–20 layer RF/microwave builds
  • Heavy copper up to 6 oz for high-power devices
  • Hybrid stackups combining FR-4 with RF materials

They are a top choice for automotive radar, mmWave modules, and high-power RF designs.

Best for: mmWave, radar, low-loss PTFE boards, thick-copper RF PCBs

3. Summit Interconnect

Summit Interconnect is known for premium high-frequency and high-reliability microwave PCBs used in:

  • Aerospace
  • Defense
  • Telecom infrastructure

Their fabrication process emphasizes precision drilling, micro-vias, and controlled dielectric thickness—critical for high-frequency energy transfer and low insertion loss.

Best for: Mission-critical high-frequency systems

4. KKPCB

KKPCB works extensively with RF laminates such as Rogers, Isola, Taconic, and Panasonic materials. Their capabilities include:

  • Rigid, flex, and rigid-flex RF PCBs
  • Controlled impedance routing
  • Low-loss dielectric materials
  • High-density microwave layouts

A good mid-cost option for commercial RF/microwave products and 5G devices.

Best for: Telecom, 5G, RF modules

5. Highleap Electronics

Highleap supports complex microwave PCB builds requiring:

  • Hybrid materials
  • Multi-layer RF stackups
  • Cavity/RF shielding structures
  • Precise copper-weight control

Ideal for radar, satellite systems, and advanced RF sensing.

Best for: Multi-layer high-frequency and mmWave PCBs

6. RayMing Technology (RayPCB)

RayMing is widely referenced as a top microwave PCB manufacturer. Their key strengths include:

  • PTFE + hybrid dielectric combinations
  • High-frequency up to mmWave
  • ENIG, ENEPIG finishes for RF connectors
  • HDI for mixed digital + RF sections

Great for high-frequency testing equipment, RF sensors, and wireless communication modules.

Best for: Broad RF material selection, advanced stackups

7. WellPCB

WellPCB provides high-frequency PCBs up to 64 layers with:

  • Tight impedance tolerances
  • Low-loss laminates (Rogers, Isola, Taconic)
  • Quick-turn RF prototyping capability

A strong choice for R&D labs, engineering teams, and rapid iteration cycles.

Best for: Low-loss microwave PCBs and prototype runs

8. Sanmina Corporation

Sanmina serves enterprise and industrial markets requiring:

  • High-reliability RF PCB mass production
  • Telecom and infrastructure RF boards
  • Integrated assembly + testing

If your product needs scale, Sanmina is a top-tier partner.

Best for: High-volume microwave PCB production

9. TTM Technologies

TTM is one of the world’s largest PCB manufacturers with deep expertise in:

  • Microwave PCBs for defense/avionics
  • Very tight tolerance stackups
  • Hybrid laminates for both RF + digital

Perfect for mission-critical high-power RF systems.

Best for: High-reliability aerospace/defense RF PCBs

10. Best Technology (BEST TECH)

Best Technology stands out for its deep expertise in Rogers, Taconic, PTFE, ceramic-filled laminates, and hybrid RF stackups. Our core strengths include:

  • High-power RF PCB manufacturing with thick copper
  • PTFE microwave PCBs for >10 GHz
  • Cavity structures, tight impedance control, and controlled Dk/Df
  • RF prototype-to-production support

We are especially strong in thermal management, cost-effective PTFE processing, and mixed-material high-frequency boards used in RF amplifiers and microwave modules.

Best for: Custom high-power RF PCB manufacturing & PTFE-based microwave PCBs

What Should You Provide for High-Power RF PCBs?

When ordering high-power RF microwave PCBs, your manufacturer needs precise engineering data to ensure correct impedance, dielectric performance, and thermal stability. Below is a complete checklist.

1. Operating Frequency Range

Specify the exact frequency band, such as:

  • 1–6 GHz (RF)
  • 10–30 GHz (Microwave)
  • 24–77 GHz (mmWave)

Higher frequencies require lower-loss materials and tighter tolerances.

2. Target Impedance & Tolerance

Provide the intended impedance values such as:

  • 50Ω microstrip
  • 75Ω signal lines
  • Differential RF pairs

This allows the PCB manufacturer to determine trace width, spacing, copper thickness, and dielectric thickness.

3. Expected Power Handling / Heat Load

Thermal load affects stackup and material choice, especially for:

  • RF amplifiers
  • High-power transmitters
  • Power combiners/splitters

Manufacturers may include metal-backed substrates or copper coins if required.

4. Material Preferences

List materials if known:

  • Rogers 4350B, 4003C, 5880, 3006
  • Taconic TLX, TLY, RF-35
  • Isola Astra / I-Tera HT / PTFE laminates

Or request material recommendations based on your frequency and power.

5. Stackup Requirements

Specify:

  • Number of layers
  • Hybrid stackup (PTFE + FR-4)
  • Dielectric thickness
  • Copper weight (e.g., 1oz, 2oz, 3oz+)

High-power RF typically needs high-copper layers for heat dissipation.

6. RF-sensitive Structure Information

Provide details on:

  • RF cavities
  • Via fences / Ground vias
  • Via-in-pad for RF chips
  • Microstrip or stripline routing

These influence manufacturability and RF performance.

7. Connector Type & Finish

RF connectors need stable surface performance:

  • ENIG
  • ENEPIG
  • Hard gold

Let the manufacturer know if you’re using SMA, MMCX, SMP, or edge-launch connectors. Please remember, the more detailed information you provided, the fast you get your prototype.

What Should You Provide for High-Power RF PCBs?

What Should You Provide for High-Power RF PCBs?

Why Best Technology Is Your Best Partner?

Best Technology is one of the most leading radio frequency manufacturers in Asia, we have more than 19 years experienced in this field. Our team deeply specializing in high-power RF PCBs and PTFE-based microwave PCB fabrication. Here’s why we stand out for most years:

1. Expertise in High-Frequency Materials

BEST TECH processes complex RF materials including:

  • Rogers (4350B, 5880, 3003)
  • Taconic
  • Teflon/PTFE
  • Ceramic-filled laminates

2. Superior High-Power Handling Capability

Their thick-copper RF PCB options (2–6 oz) ensure stable thermal performance in:

  • Power amplifiers (PA)
  • High-power transmitters
  • RF power distribution networks

3. Precision Fabrication & Tight Impedance Control

With advanced drilling, lamination, and copper etching technologies, they achieve:

  • ±5% impedance tolerance
  • Excellent line width stability
  • Accurate dielectric thickness across the panel

4. RF Prototyping + Mass Production

From engineering samples to volume production, Best Technology supports fast lead times with stable process control.

5. Competitive Pricing for PTFE & Microwave Boards

Compared with Western manufacturers, BEST TECH offers better pricing while maintaining high quality—ideal for startups, R&D teams, and cost-sensitive RF applications.

If you are interested in RF PCB design or want to get your first RF PCB prototype with fast delivery, please do not hesitate to contact us, our sales team are engineered sales, they deeply know the RF PCB, and enable to provide you the best solution and competitive price in short time.

FAQs

1. What is an RF microwave PCB?

An RF microwave PCB is a printed circuit board designed to operate at high frequencies (1–100+ GHz). It uses low-loss materials such as Rogers or PTFE to maintain stable impedance and minimize signal attenuation.

2. What causes high-power RF PCBs to fail?

Common failure causes include:

  • Excessive heat
  • Poor thermal design
  • Incorrect stackup selection
  • Impedance mismatch
  • Delamination from improper lamination of PTFE materials

Choosing the right RF PCB manufacturer greatly reduces failure risk.

3. What is the recommended copper thickness for high-power microwave PCBs?

For heat-heavy RF circuits:

  • 2 oz or 3 oz copper is common
  • 4–6 oz for very high-power amplifiers

4. Why is controlled impedance so important in RF PCB design?

Proper impedance ensures:

  • Lower insertion loss
  • Minimal signal reflection
  • Stable RF phase and amplitude
  • Accurate high-frequency performance

5. Can I use FR-4 for microwave PCBs?

FR-4 is not recommended above 3–6 GHz due to high dielectric loss. For microwave frequencies, PTFE or Rogers materials are necessary.

Common Microwave PCB FAQs, RF Microwave PCB Solutions
Wednesday, December 3rd, 2025

Microwave PCBs are the foundation of today’s radar sensors, satellite communication modules, 5G mmWave devices, and high-frequency RF front-end systems. Operating between 300 MHz and 300 GHz, microwave circuits require extremely low signal loss, minimal phase distortion, and precise impedance control. Because of these challenges, engineers and buyers often have many questions when choosing materials, designing stack-ups, or selecting a reliable microwave PCB manufacturer.

This article compiles the common Microwave PCB FAQs, covering materials, stack-ups, design rules, testing, troubleshooting, and how to choose a UL/CE certified microwave PCB manufacturer. Let’s dive in.

Common Microwave PCB FAQs, RF Microwave PCB Solutions

1. What is the difference between RF PCB and microwave PCB?

RF PCBs typically operate below 6 GHz, while microwave PCBs are engineered for 6–100+ GHz applications. Microwave boards require lower-loss materials, tighter impedance control, and more precise manufacturing.

2. Can FR4 be used for microwave PCBs?

Generally no. FR4 has high dielectric loss (Df) and unstable Dk at high frequencies, causing significant signal degradation above ~3–4 GHz. Microwave designs typically use PTFE, ceramic-filled PTFE, hydrocarbon ceramics, or hybrid stackups.

3. What materials are best for microwave PCBs?

Common high-performance materials include:

  • Rogers RO4003C / RO4350B
  • Rogers RT/duroid 5880, 6002, 6035HTC
  • Taconic TLY, RF-35
  • Arlon CLTE-XT, IsoClad
  • Hybrid FR4 + Rogers constructions

These materials provide low loss, stable dielectric constants, and excellent high-frequency performance.

4. Why is impedance control critical for microwave circuits?

At microwave frequencies, PCB traces behave like transmission lines. Even a 5–10% impedance error can cause:

  • Higher insertion loss
  • Return loss and reflection
  • Phase distortion
  • Reduced antenna efficiency

Therefore, maintaining a precise 50Ω or 75Ω impedance is mandatory.

5. What is a grounded coplanar waveguide (GCPW) and why is it used?

GCPW is a transmission line structure where the RF trace is flanked by ground on both sides with a ground plane below.

It is preferred for microwave PCBs because it offers:

  • Excellent isolation
  • Consistent impedance
  • Low radiation loss
  • Compact routing for dense layouts

This makes it ideal for RF microwave PCB solutions in 5G and radar applications.

6. Do microwave PCBs require special surface finishes?

Yes. Surface finishes impact insertion loss and skin effect at GHz frequencies.

Recommended finishes:

  • Immersion Silver (IAg) → lowest loss
  • ENEPIG → stable & reliable for wire bonding
  • ENIG → commonly used but slightly higher loss

Avoid heavy plating thicknesses that increase skin resistance.

7. Does the thickness of a microwave PCB affect performance?

Absolutely. PCB thickness affects:

  • Impedance
  • Loss tangent
  • Coupling
  • Antenna bandwidth
  • Propagation delay

Thinner boards generally provide better high-frequency performance and smaller trace widths.

8. How small can a microwave PCB be?

Microwave PCBs can be extremely compact (millimeter scale), but size is often dictated by:

  • Antenna requirements
  • Transmission line spacing
  • Ground via placement
  • Heat management

For mmWave modules (24–80 GHz), PCBs are often less than 20 × 20 mm.

9. Can microwave PCBs support high power?

Some can, but it depends on the material.

Ceramic-filled PTFE laminates like RO3006/3010 support higher power due to:

  • Better thermal stability
  • Lower expansion
  • Higher breakdown voltage

Always calculate thermal dissipation for PA circuits.

10. How do you test a microwave PCB?

Common testing methods include:

  • Time Domain Reflectometry (TDR) – impedance
  • Vector Network Analyzer (VNA) – S-parameters
  • Insertion loss and return loss measurement
  • Phase stability tests
  • Thermal cycling / reliability testing

Certified manufacturers provide full RF test reports.

11. What causes failure in a microwave control board?

Typical failure points include:

  • Overheating of high-power components
  • Delamination of PTFE materials
  • Dielectric breakdown
  • Trace burns or micro-cracking
  • Faulty solder joints
  • Moisture absorption in high-frequency laminates

Environmental stress factors accelerate failures at GHz speeds.

12. How long does it take to manufacture a microwave PCB?

Lead times depend on stackup complexity:

  • Simple 2–4 layer microwave PCB: 7–10 days
  • Hybrid PTFE/FR4 stackups: 10–15 days
  • Advanced mmWave designs (20–80 GHz): 15–25 days

Prototype + testing may take longer.

13. Are microwave PCBs expensive?

Yes, they cost more than standard FR4 because materials like Rogers/PTFE have higher prices and require specialized equipment.

Cost is influenced by:

  • Material grade
  • Layer count
  • Precision machining
  • Tight impedance tolerance
  • Surface finish

Large-scale production reduces cost significantly.

14. How do I source microwave PCBs with UL/CE certification?

Choose a manufacturer that specializes in RF & microwave PCB solutions and provides:

  • UL-recognized laminates
  • CE-compliant process control
  • Rogers, Taconic, and Arlon material handling
  • Impedance test reports
  • Cleanroom lamination for hybrid constructions

15. Can microwave PCBs be multilayer?

Yes. Many microwave designs use 4–12 layer stackups, with PTFE or hydrocarbon layers sandwiched between FR4.

Common structures include:

  • PTFE outer layers + FR4 inner layers
  • Full PTFE stack for ultra-low-loss radar systems
  • PTFE + ceramic for mmWave phased arrays

16. What is the maximum frequency a PCB can support?

It depends on the laminate.

Typical limits:

  • FR-4: < 6 GHz (with losses)
  • Rogers 4000 series: ~20–40 GHz
  • PTFE-based materials: 40–110 GHz
  • Ceramic-filled materials: up to 110+ GHz and mmWave bands

For 5G, radar, and satellite systems, PTFE or ceramic laminates are recommended.

17. Do microwave PCBs require controlled dielectric thickness?

Yes. Dielectric thickness tolerance is critical because it directly affects:

  • Impedance accuracy
  • Coupling and isolation
  • Phase delay
  • Overall microwave matching performance

High-frequency PCB fabricators must maintain ±10% or even ±5% dielectric thickness tolerance for mission-critical use.

18. Why is copper roughness important in microwave PCBs?

At microwave and mmWave frequencies, skin depth becomes extremely small.
Rough copper dramatically increases:

  • Conductor loss
  • Insertion loss
  • Heating

Many designers specify rolled annealed (RA) copper or low-profile copper (VLP/LP) to keep losses under control.

19. Can microwave PCBs be made flexible (RF flex circuits)?

Yes—flexible microwave PCBs use materials like:

  • Rogers 3000 series flexible laminates
  • Polyimide-based low-Dk materials

Applications include antennas, phased arrays, and wearable radar sensors.

20. What is the expected lifetime of a microwave PCB?

With proper material selection and thermal design:

  • Consumer microwave PCBs: 5–10 years
  • Automotive radar PCBs: 10–15 years
  • Aerospace/military microwave PCBs: 20+ years

Failure is usually caused by thermal cycling, moisture absorption, or RF overstress.

21. How long does it take to manufacture microwave PCBs?

Typical lead times:

  • Standard microwave PCB: 10–15 days
  • Complex multilayer microwave PCB: 15–25 days
  • Hybrid stack-up with PTFE: 20–30 days

Fast-turn service (5–7 days) is possible but more expensive.

22. What Is the Typical Thickness of a Microwave PCB?

Dielectric layers:

  • 0.127 mm
  • 0.254 mm
  • 0.508 mm
  • 0.8 mm

Final PCB thickness:

0.4–1.6 mm depending on application.

23. What Are the Main Applications of Microwave PCBs?

Microwave PCBs are used in:

  • 24/60/77 GHz automotive radar
  • 5G mmWave radio units
  • Microwave antennas
  • Satellite transceivers
  • PA/LNA modules
  • RF filters and couplers
  • Medical microwave imaging
  • Wireless base stations
  • Military radar systems

Above are the common questions that we faced during working, if you have any other questions about microwave PCBs or radio frequency PCBs, just feel free to contact us.