Low Loss PCB Manufacturer for
High-Frequency Applications
WellPCB is a low loss PCB manufacturer delivering printed circuit boards that maintain signal integrity at high frequencies in demanding RF and microwave environments.
Our PCBs use premium low-loss materials such as Rogers, Isola, and Panasonic Megtron 6 laminates. These allow for low dielectric constants and low dissipation factors for improved signal.
WellPCB’s fabrication capabilities include precise impedance control, high frequency laminates and multi-layer stackups for complex circuit design.
- Dielectric constant range from 2.2 to 3.5 with Df as low as 0.001
- Multi layer builds up to 64 layers with tight impedance tolerances of ±5 Ω
- IPC Class 3 and ISO-certified PCB manufacturing
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ISO9001 ISO13485
ISO14001
IATF
16949
IPC-A-610H International
Certification
Fully Automated
AOI Inspection
Low Loss PCB Solutions for RF and Microwave Systems
Low loss printed circuit boards transmit high frequency signals with minimal attenuation. You’ll find them in applications like 5G base stations, satellite communications and automotive radar modules.
Engineered with premium frequency low loss PCB material, these boards maintain stable dielectric properties across a wide temperature range. They help support consistent impedance and low insertion loss for RF and microwave performance.
As a reliable low loss PCB manufacturer, we use high frequency laminates such as Rogers RO4350B, Isola Astra MT77 and Panasonic Megtron 6 (dielectric constants from 2.2 to 3.5 and dissipation factors down to 0.001). Copper weights range from 0.5 to 5 oz, with trace widths to 3 mil and impedance tolerances of ±5 Ω.
Fabrication integrates controlled lamination, laser-drilled microvias and precision etching to achieve extremely low transmission loss for high speed communication. Each PCB is tested using AOI, X-ray and impedance measurement to verify accuracy before shipment.
Our Capabilities As a Low Loss PCB Manufacturer
We work with low loss PCB material grades including RO4003C and RO4350B, Isola 370HR and Isola 408HR, TU-883 and TU-768.
Dielectric constant values range from 2.2 to 3.5 with low dissipation factor down to 0.001, maintaining stable performance at high frequencies.
Laminates meet IPC and UL safety standards, with CTE values matched for low coefficient of thermal expansion in multi layer RF PCB builds.
Low loss PCBs are available from 1 to 64 layers, with HDI blind and buried microvias for compact high frequency PCB designs.
Our PCB stackup designs accommodate mixed dielectric materials to optimize impedance, insertion loss and skin effect performance for microwave PCB and high speed digital PCB layouts.
Finished copper thickness options from 0.5 oz to 5 oz, with plating tolerances of ±10% across the PCB board fabrication.
Heavy copper sections are available for power distribution layers in RF and microwave and radio frequency systems, while maintaining uniform plating thickness in fine-line areas.
We achieve impedance tolerances of ±5 Ω for single-ended and ±10% for differential pairs up to 110 GHz.
Vector network analyzer testing verifies S-parameters, insertion loss, and return loss, while design verification ensures impedance targets meet your design requirements.
Laser drilling supports microvias down to 0.1 mm diameter with ±0.05 mm positional accuracy. Through-holes maintain aspect ratios up to 25:1 with uniform copper plating.
We provide via-in-pad, stacked via, and via-in-via configurations to support high-density RF PCB and rigid-flex PCB layouts.
Our team can apply your choice of several surface finishes. These include ENIG (gold-plated nickel), immersion silver layers (0.12 to 0.40 μm), OSP coatings (0.2 to 0.5 μm) and lead-free HASL (from 1 to 40 μm).
Our team chooses each finish to minimize signal loss, maintain solderability and meet long-term reliability requirements for high frequency low loss PCB use.
Our facilities handle quantities from one-off PCB prototype builds to tens of thousands of units, with quick turn PCB lead times starting at 2 weeks for prototypes (up to 5 weeks for full production runs).
We apply statistical process control (SPC) to monitor plating thickness, hole quality and dimensions throughout the PCB manufacturing process.
All low-loss PCB products undergo 100% AOI, flying probe or fixture-based electrical testing, X-ray inspection for internal structures and thermal cycling validation.
IPC Class 3 conformance and ISO 9001 certification ensure consistent quality in every batch, with assembly services available for complete fabrication and assembly delivery.
Why Choose WellPCB?
Proven Expertise in Low Loss PCB Fabrication
Comprehensive Manufacturing Services
Rapid Production with Volume Flexibility
Stringent Quality and Reliability Testing
Cost-Optimized Low Loss PCB Solutions
Engineering and Technical Support
What is a Low Loss PCB?
Where are Low-Loss PCBs Used?
You’ll find low loss PCBs wherever high frequency signals, minimal signal loss and consistent impedance are necessary for the circuit to function. These boards are engineered to perform under strict electrical, thermal, and mechanical tolerances.
Telecommunications and 5G Infrastructure
In 5G base stations, small cells and distributed antenna systems, low loss PCBs handle frequencies above 28 GHz with low insertion loss for stable, long-distance transmission.
Controlled impedance and low dielectric constant materials ensure consistent performance in massive MIMO and beamforming systems.
Automotive Radar and ADAS Systems
Advanced Driver Assistance Systems and radar sensors operating at 24 GHz and 77 GHz rely on low loss PCBs to maintain accuracy in detecing objects and lane assist functions.
High frequency laminates and low coefficient of thermal expansion materials withstand wide temperature swings in automotive environments.
Medical Imaging and Diagnostic Equipment
MRI, CT and ultrasound systems use low loss PCBs to preserve signal clarity in high resolution imaging.
Low-loss materials reduce dielectric loss and EMI susceptibility, while maintaining a stable impedance during continuous operations.
High-Speed Data Centers and Networking Hardware
Switches, routers and optical transceivers in data centers require low loss PCBs to meet signal integrity targets at 25 to 112 Gbps.
These boards maintain low transmission loss for high speed communication and reduce jitter in PAM4 signaling.
Consumer Electronics with High-Speed Interfaces
Smartphones, tablets and wearable devices with 5G, Wi-Fi 6E, and HDMI 2.1 connections benefit from low loss PCBs to ensure stable high frequency performance in compact rigid-flex PCB designs. These boards balance high density interconnects with efficient thermal management for reliable consumer use.
Low Loss Materials
WellPCB sources and processes premium laminates that balance low dielectric constant, low dissipation factor, and mechanical stability, ensuring optimal performance for RF, microwave, and high speed digital applications.
PTFE-Based Laminates
Rogers RO4003C and RO4350B Laminates
Isola 370HR and Isola 408HR Laminates
Panasonic Megtron 6
Design Considerations for Low Loss PCBs
Material Selection Based on Frequency and Loss Budget
Trace Geometry and Routing Best Practices
Minimizing EMI and Crosstalk
Thermal Management in High-Power Applications
How to Order Your Low Loss PCB
Submit Your PCB Design
Upload your Gerber files or use our easy online PCB design tool to create your board layout. Make sure your files are complete and correctly formatted to ensure smooth processing and production accuracy.
Select Your PCB Specifications
Customize your order by choosing the technical specifications—number of layers, board dimensions, thickness, copper weight, solder mask color, surface finish, and more. Our intuitive interface helps you configure everything based on your project’s needs.
Get an Instant Quote
Once your design and specs are in place, you'll receive a transparent, instant quote. Pricing updates in real time as you modify options, so you can adjust your selections to match your budget before placing the order.
Confirm Order & Make Payment
Review your entire order for accuracy, including file previews and selected specs. After confirmation, proceed to secure checkout and choose your preferred payment method. You’ll receive an email confirmation with order details.
Production & Delivery
Your PCB moves into production immediately. We’ll keep you updated throughout the manufacturing process. Once completed, your boards are carefully packed and shipped to your door, with tracking information provided for your convenience.
WellPCB is trusted by millions of
businesses and innovators.
Why Choose WellPCB?
WellPCB stands out among USA PCB manufacturers by delivering superior quality, advanced solutions, and unmatched reliability. With years of experience serving global markets, WellPCB has earned a reputation as one of the top PCB manufacturers in USA.
WellPCB specializes in multilayer PCBs for advanced electronic applications. You can order these boards with $100 off using our special offer, providing high complexity at competitive rates for demanding projects.
Hommer Zhao
Founder and Chief Editor – Hommer Zhao
Welcome! I’m Hommer Zhao, the founder and Chief Editor of WellPCB. With years of experience in the PCB industry, I’m committed to making sure our content is both accurate and helpful. We’re proud to serve a growing community of over 4,000 customers worldwide, and our goal is to provide you with the best resources and support. Your satisfaction is our top priority, and we’re here to help you every step of the way!
Jesse Holland
Technical Manager – Jesse Holland
Hi, I’m Jesse Holland, an Engineer and Technical Manager at WellPCB. With years of experience in PCB design and engineering, I’m here to ensure that every project we work on meets the highest technical standards. I lead our team, focusing on precision and innovation, collaborating closely with clients to provide tailored solutions and expert guidance. Whether you’re facing a complex design challenge or need advice on technical aspects, I’m here to ensure your project is a success from start to finish.
Nathan Jensen
Purchasing Manager – Nathan Jensen
Hi, I’m Nathan Jenson, the Purchasing Manager at WellPCB. I’m responsible for sourcing the best materials and components to ensure our products meet the highest quality standards. With my extensive experience in procurement, I work closely with suppliers to secure reliable and cost-effective solutions while maintaining strong relationships to support our operations. I aim to ensure every project runs smoothly by providing the resources needed to deliver on time and to your satisfaction.
Emma
Sales Manager – Emma
Hey, I am Emma, sales manager at WellPCB. I studied electronic science and technology at university and have served customers for PCB and PCB Assembly service for several years.

I enjoy communicating with customers and our technicians to solve problems, and customers always say, "It's great to have you onboard".

It is my pleasure and honour to be helpful. Contact me now, and you'll know.
Bella and Cassiel
Sales Representatives – Bella and Cassiel
We’re Bella and Cassiel, your dedicated sales representatives at WellPCB. With our extensive knowledge of the PCB industry, we’re here to provide exceptional service and support. We take the time to understand your unique needs and are always ready to offer tailored solutions and advice. Whether you need product recommendations, assistance with your orders, or simply have a question, we’re here to ensure your experience is smooth and seamless at every step.
Mandy and Wendy
Sales Representatives – Mandy and Wendy
We’re Mandy and Wendy, your friendly sales representatives at WellPCB. Passionate about helping our customers, we bring a wealth of experience in the PCB industry to provide you with the best solutions and service. We take pride in building strong relationships with our clients, understanding their specific needs, and offering personalised support to ensure their satisfaction. Whether you’re looking for advice, product information, or assistance with any part of your order, we’re here to make your experience as smooth and efficient as possible.
Our Team
Our skilled engineers and technicians bring expertise and precision to every PCB assembly project. Committed to quality, efficiency, and innovation, our team ensures every order meets the highest UL, IPC, ROHS & REACH standards, delivering reliable solutions tailored to your needs.
- Founder and Chief Editor – Hommer Zhao
- Technical Manager – Jesse Holland
- Purchasing Manager – Nathan Jensen
- Sales Manager – Emma
- Sales Representatives – Bella and Cassiel
- Sales Representatives – Mandy and Wendy
Low Loss PCB Case Studies
PCB Assembly
This case study demonstrates a low loss PCB fabricated using the RO4350B. This material has a wide range of applications and requires a specific manufacturing process.
Applications:
Wireless communications: Its low loss characteristics reduce signal attenuation during transmission, improving signal quality and base station coverage. Test and measurement equipment: The RO4350B low-loss PCB meets the performance requirements of high-frequency equipment.
Satellite communications: The RO4350B low-loss PCB minimizes excess transmission loss, ensuring the strength and quality of received signals.
PCB Assembly
High-layer low-loss PCBs provide stable signal transmission, meeting the stringent signal transmission requirements of these devices. They are suitable for communications, navigation, and control systems in aerospace equipment.
Manufacturing Process:
- •Low-loss substrate materials: Select materials with low dielectric constant (Dk) and low dissipation factor (Df).
- •Impedance Control: Control impedance deviation and optimize circuit design.
- •Surface Treatment: Requires strong oxidation resistance to improve soldering yield; typically uses processes such as immersion gold and immersion silver.
PCB Assembly
This low-loss PCB is used in medical diagnostic equipment, such as magnetic resonance imaging (MRI) and computed tomography (CT), which require extremely high signal accuracy and stability.
Low-loss PCBs can reduce signal interference and loss, ensuring accurate images and data are captured, providing a reliable basis for disease diagnosis.
Low Loss PCB Manufacturer Client Feedback
As an R&D manager, I have had an outstanding experience working with WELL-PCB. For many years, our company has entrusted them with the production, assembly, and programming of the boards developed in our R&D unit, and they have consistently exceeded our expectations.
Hamid Reza Moshayedi
R&D Manager
Their work is very impressively perfect. Today, when they check our company PCB board after assemble. They found a fake short point which many engineers has never found in the past years. But that is just designed so. The PCB board quality is excellent. Their service is also excellent.
MikeZ
My friend introduced WellPCB to me, the first try, a little look forward to. I ordered a 47*72 10ps PCB, and I can’t wait to receive my PCB. So I used expedited service and received my PCB in three days. I tested and soldered the PCB, Quality is really good, silkscreen, plating also great.
Warren Cliton
Low Loss PCB Manufacturer FAQs
Do you offer hybrid stackups combining FR4 and low-loss cores?
Can you produce rigid-flex low loss PCBs?
How do you ensure impedance accuracy in production?
We use controlled PCB manufacturing processes, impedance coupons, and vector network analyzer testing to maintain ±5 Ω single-ended and ±10% differential impedance tolerance.
Do you provide PCB assembly for low loss designs?
Your Low Loss PCB Manufacturer for High-Frequency
and RF Applications
Get $100 Off Your First Order!
From prototype to full production, our IPC Class 3 and ISO-certified facilities deliver low loss PCBs built for high frequency, RF and microwave performance. Get your free quote and let’s begin.
