High-Frequency PCBs | Rogers RO4350B, 4-Layer, ENIG, Impedance-Controlled PCB
Multilayer PcB, any layer HDI PCB
| Type | High-frequency PCB+impedance |
| End product | |
| Materia | High-frequency、Rogers RO4350B 1E/1E 0200 (DK=3.48）（0.508mm） |
| Number of layer | 4L |
| Board Thickness | 1.6mm |
| single size | 172*118mm/1PCS |
| Surface finish | ENIG |
| inner copper thickness | 35um |
| outer copper thickness | 35um |
| color of solder mask | green(GTS，GBS) |
| silkscreen color | white(GTO,GBO) |
| via treatment | Solder mask plug holes |
| density of mechanical drilling hole | 8W/㎡ |
| density of laser drilling hole | / |
| min via size | 0.2mm |
| min line width/space | 8/8mil |
| aperture ratio | 8mil |
| pressing times | 1 time |
| drilling times | 1 time |
| PN | B0400564A |
High-Frequency PCB Core Features
✔ Material: Rogers RO4350B (Dk=3.48, Low Df)
✔ Layers: 4-Layer PCB
✔ Surface Finish: ENIG (Electroless Nickel Immersion Gold)
✔ Technology: Controlled Impedance, Solder Mask Plugging
✔ Applications: RF, Radar, Aerospace, Automotive Electronics
Why High-Frequency PCBs Are Essential for RF, Automotive & Aerospace Applications
Reliable RF Performance for Communication Systems
●Enables 5G base stations, radar modules, and AI-driven RF systems.
Optimized for Automotive Radar & ADAS
●Supports 24GHz, 77GHz, and 79GHz radar modules for self-driving technology.
Enhanced Durability for Aerospace & Satellite Applications
●Operates under high radiation, temperature extremes, and vacuum conditions.
Stable Dielectric Constant (Dk=3.48) for Precision RF Performance
Our Rogers RO4350B-based PCB ensures minimal variation in dielectric constant, crucial for stable signal transmission in RF and microwave applications.
Low Dissipation Factor (Df) for High-Efficiency Signal Transmission
The low loss tangent (Df ≈ 0.0037 @10 GHz) significantly reduces signal attenuation, making it ideal for high-speed, long-range communications and radar systems.
Precision Impedance Control for Consistent RF Signal Integrity
Our advanced manufacturing techniques ensure tight impedance tolerances, critical for antenna matching, RF filter circuits, and phase-sensitive applications.
High Thermal Reliability for Harsh Environments
Designed for aerospace, automotive, and military applications, our PCBs withstand extreme temperatures and harsh operating conditions.
Superior Surface Finish with ENIG for Enhanced Reliability
The ENIG finish ensures excellent solderability, oxidation resistance, and long shelf life, making it suitable for precision RF components like MMICs, antennas, and filters.
High-Frequency PCB Materials & Manufacturing Process
High-Performance RF Materials
●Rogers RO4350B (Dk=3.48, Df=0.0037 @ 10GHz) for minimal signal loss.Rogers RO4350B（Dk=3.48，Df=0.0037 @ 10GHz）
●Low CTE (Coefficient of Thermal Expansion) for high-frequency stability.
●Copper Foil Options (1oz, 2oz, or customized) for optimized conductivity.
Advanced Manufacturing Processes
✔ Laser Drilling & Microvia Formation for HDI and fine-pitch designs.
✔ Tight Impedance Control for high-speed RF transmission.
✔ Solder Mask Plugging for Via Protection ensuring reliability in high-frequency environments.
✔ Automated Optical Inspection (AOI) & X-ray Testing for 100% quality assurance.
Technical Breakthroughs in High-Frequency PCBs: From Design to Assembly
Optimized Layer Stackup for RF Performance
●4-layer PCB structure with RF shielding and ground planes.
●Low-loss dielectric materials for signal stability at high frequencies.
Microwave & mmWave Circuit Innovations
●Advanced PCB etching for tight tolerance trace widths.
●Embedded RF filters and antennas for compact high-performance modules.
Precision Assembly & Testing
●High-frequency probe testing for RF performance validation.
●Automated SMT assembly for MMICs, amplifiers, and radar front-ends.
FAQs About High-Frequency PCBs & Manufacturing
1. What are high-frequency PCBs used for?
High-frequency PCBs are essential in applications where signal integrity, low loss, and high-speed transmission are critical. These PCBs are used in RF circuits, automotive radar, telecommunications, aerospace, and 5G networks. Specifically, they are found in microwave and millimeter-wave applications such as 5G antennas, radar modules, and satellite communications, where precise signal transmission is required for optimal performance.
2. Why is Rogers RO4350B preferred for RF PCB manufacturing?
Rogers RO4350B is a highly sought-after material in high-frequency PCB manufacturing because of its stable dielectric constant (Dk = 3.48) and low dissipation factor (Df ≈ 0.0037 @ 10GHz). It provides excellent signal integrity, low signal loss, and high thermal stability, making it ideal for RF, microwave, and 5G applications. Its superior electrical performance in high-frequency environments ensures that the PCB performs reliably even in the most demanding applications like automotive radar and satellite systems.
3. What is the maximum frequency high-frequency PCBs can handle?
High-frequency PCBs, especially those made with materials like Rogers RO4350B, can handle frequencies up to 100 GHz and beyond, making them suitable for microwave and millimeter-wave circuits. These PCBs are used in 5G, automotive radar, aerospace, satellite communication systems, and high-speed wireless networking where high-frequency signal integrity is essential for performance.
4. How do you ensure impedance control in high-frequency PCBs?
Impedance control is crucial in high-frequency PCB design for minimizing signal reflections and maintaining signal integrity. We ensure tight impedance control through precise layer stack-up design, careful material selection, and advanced manufacturing techniques like controlled dielectric spacing, and precision etching. Additionally, our test methods, such as time-domain reflectometry (TDR), are used to ensure the PCB matches specified impedance values.
5. What surface finishes are suitable for high-frequency PCBs?
For high-frequency applications, the most suitable surface finishes are ENIG (Electroless Nickel Immersion Gold), Immersion Silver, and Hard Gold. ENIG is preferred because it provides excellent solderability, corrosion resistance, and long-term reliability in RF applications, ensuring low loss and high durability. Immersion Silver is also suitable for high-frequency circuits that require good conductivity and performance.
6. What is the lead time for high-frequency PCB production?
The lead time for producing high-frequency PCBs varies depending on the complexity and quantity of the order. Generally, the timeline is:
Prototypes: 7-10 days
Mass Production: 2-4 weeks
Complex designs, such as multi-layer high-frequency boards or custom stack-ups, may require additional time for fabrication and testing.
7. Can high-frequency PCBs be customized for specific applications?
Yes, we offer custom high-frequency PCB solutions tailored to meet specific application requirements. This includes material selection, layer stack-up design, surface finishes, and impedance control. Whether you need microwave filters, RF modules, or automotive radar boards, we can modify the design and manufacturing process to meet your precise needs.
8. How do you handle signal integrity in high-frequency PCBs?
Signal integrity is paramount in high-frequency designs, and we handle it by implementing controlled impedance design, minimizing parasitic elements, and optimizing trace width and spacing to reduce signal loss. Additionally, we use simulation tools to model the PCB’s electrical performance and ensure the design can meet its intended frequency range and power requirements.
9. What are the advantages of using 4-layer high-frequency PCBs?
A 4-layer high-frequency PCB offers several advantages, including:
Better signal isolation with dedicated power and ground planes.
Improved thermal management, ensuring efficient heat dissipation.
Enhanced signal integrity, especially in complex RF designs.
Space efficiency, as it allows for more routing options and higher-density components.
10. What testing methods do you use for high-frequency PCBs?
We use advanced testing methods to ensure high-frequency PCBs meet the highest standards of performance and quality. These include:
Automated Optical Inspection (AOI) for visual inspection.
X-ray Inspection for checking hidden solder joints.
Time-Domain Reflectometry (TDR) for verifying impedance control.
High-frequency probe testing for measuring signal loss and reflection.
Applications of High-Frequency PCBs
1. RF & Microwave Communication
High-frequency PCBs are crucial for RF communication systems, such as 5G transceivers, base station antennas, and microwave amplifiers. These PCBs are used in telecommunications, satellite communications, and military RF systems, where signal integrity and low signal loss are essential.
2. Automotive Electronics (ADAS & Radar)
In the automotive industry, high-frequency PCBs are used in Advanced Driver Assistance Systems (ADAS) and automotive radar. These PCBs support 24GHz, 77GHz, and 79GHz radar sensors for self-driving technologies and collision avoidance systems. They ensure high accuracy and low latency for critical safety functions.
3. Aerospace & Satellite Systems
High-frequency PCBs are also widely used in aerospace and satellite communication systems, where reliable signal transmission is essential for applications like phased-array radar systems, satellite communication modules, and navigation systems. These PCBs are designed to withstand extreme environments, including high radiation and temperature fluctuations.
4. Military & Defense Electronics
In defense applications, high-frequency PCBs are used in electronic warfare (EW), secure communications, and radar systems. These PCBs support high-speed, low-latency communication systems that require high reliability, strong signal isolation, and long-range performance.
5. High-Speed Networking & AI Servers
High-frequency PCBs are critical in data centers and AI-based networking applications. They are used in high-speed interconnects, switching circuits, and networking equipment, where signal integrity is vital for fast, secure data transmission. With improved PCB designs, these circuits can operate at high frequencies without compromising performance.
6. Medical & Healthcare Devices
In the medical sector, high-frequency PCBs are used in wireless medical devices, telemedicine equipment, and medical imaging systems. These PCBs are engineered to ensure low signal loss and reliable operation in devices that require high precision, such as wireless ECG monitors, X-ray machines, and MRI scanners.
7. IoT & Smart Devices
For Internet of Things (IoT) devices, high-frequency PCBs are used in wireless sensors, smart home systems, and connected devices. These boards enable long-range communication and data transmission with low power consumption, essential for smart grids, smart cities, and healthcare monitoring systems.
8. Industrial & Robotics
In industrial automation and robotics, high-frequency PCBs are integral to motion control systems, robot sensors, and vision systems. These PCBs provide precise control signals and high-frequency data communication between components, ensuring the efficient operation of robotic arms, AI-driven machines, and other automated systems.
9. Wireless Charging Systems
High-frequency PCBs are also used in wireless power transfer systems, where high-frequency circuits are required to transfer power wirelessly at high efficiency. These systems are widely used in electric vehicle charging stations and consumer electronics like wireless charging pads.
10. Consumer Electronics & Wearable Devices
In consumer electronics like smartphones, wearable devices, and smart watches, high-frequency PCBs are essential for wireless communication and RF functions. These boards enable Bluetooth, Wi-Fi, and GPS functionalities, providing seamless connectivity and signal strength in compact, miniaturized designs.
High-frequency PCBs are an indispensable part of modern electronics, especially in RF communications, automotive radar, aerospace systems, and 5G applications. With advanced materials like Rogers RO4350B and precision manufacturing processes, we deliver reliable, high-performance PCBs tailored to your application needs. Whether for microwave, automotive, or aerospace technologies, our high-frequency PCBs are designed to meet the highest standards of performance and durability.
Contact us today for custom high-frequency PCB solutions that meet your exact specifications and requirements!