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The relentless push towards higher frequencies think 5G/6G, automotive radar, and advanced satellite communications demands PCB materials engineered specifically to perform at mmWave bands. Shengyi’s mmWave77 laminate series steps into this critical role, offering a compelling blend of high-frequency electrical properties, reliability, and manufacturability.
In this article, we’ll discuss what really characterizes the Shengyi mmWave77 laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the High frequency circuit boards, so please feel free to contact us.

What is the high frequency mm Wave77 pcb material?
Shengyi mmWave77 laminate maintains exceptional dielectric stability over high frequency and temperature, with a low Dk of 3.07 at 10GHz, and the material has a very low dissipation factor (typically 0.0008 @ 10 GHz), minimizing signal loss and ensuring efficient transmission of high-frequency signals. which is critical for maintaining impedance control and signal integrity in high-speed and high-frequency circuits.
Shengyi mmWave77 laminate stands as a testament to the advancement in high-frequency PCB materials. It delivers the essential combination of ultra-low loss (low Df), stable and tightly controlled dielectric properties (Dk ±0.04), thermal robustness (high Tg), and reliability (low moisture absorption, strong peel strength) demanded by cutting-edge mmWave applications, particularly the booming automotive radar market.
Shengyi mmWave77 laminates are specifically engineered for these high-frequency applications. Designed to meet the stringent requirements of millimeter wave technologies, mmWave77 offers exceptional dielectric properties, low signal loss, and superior mechanical reliability, making it a preferred choice for designers working at frequencies up to and beyond 77 GHz. From automotive radar systems to 5G infrastructure, GPS antennas, and satellite communication modules, mmWave77 delivers the dielectric stability, low signal loss, and mechanical strength needed to ensure optimal system performance.
The high frequency mmWave77 PCB material data sheet

The features of the high frequency mmWave77 PCB material
Stable Dk/Df over Frequency and Temperature
Maintains reliable electrical performance across a broad spectrum of frequencies and thermal conditions, crucial for mmWave and 5G systems. Exceptional stability across a broad frequency range (up to 77GHz) and over temperature variations ensures consistent circuit performance without unexpected shifts.
Dielectric Constant (Dk)
With a low Dk of 3.07 at 10GHz, mmWave77 maintains exceptional dielectric stability over frequency and temperature, which is critical for maintaining impedance control and signal integrity in high speed and high frequency circuits.
Dissipation Factor (Df)
Exhibits exceptionally low Df (typically 0.0008 @ 10 GHz), minimizing signal loss (insertion loss) at high frequencies – paramount for mmWave signal integrity and range. The material has a very low dissipation factor, minimizing signal loss and ensuring efficient transmission of high-frequency signals.
Tight Dielectric Tolerance (±0.04)
This extremely low tolerance allows for more precise impedance control during design and manufacturing, reducing yield loss and the need for design guard bands, especially critical for complex antenna arrays and feed networks.
Low Moisture Absorption
Shengyi mmWave77 laminate features a low absorption rate of 0.01%. Moisture ingress can significantly alter Dk/Df and degrade performance. mmWave77’s inherently low moisture absorption ensures stable electrical properties and reliability even in humid conditions.
Excellent Copper Peel Strength
Provides strong adhesion between the copper foil and dielectric substrate, essential for the mechanical robustness of fine-line circuits and plated structures, preventing delamination during fabrication, assembly, and use.
UL 94V-0 Flame Rating
Shengyi mmWave77 laminate meets the UL 94V-0 flammability standard, providing enhanced safety and compliance for use in commercial and industrial electronics. Meets the stringent UL 94V-0 flammability standard, a critical safety requirement for many electronic applications, particularly automotive.
What are the applications of the high frequency mmWave77 PCB material?
Shengyi mmWave77 laminate is purpose-built for applications operating in the challenging high-frequency and mmWave spectrum:
Automotive Radar Applications
The primary target. Ideal for Advanced Driver Assistance Systems (ADAS) and autonomous vehicle radar modules (Long-Range Radar – LRR, Short-Range Radar – SRR) requiring ultra-low loss, stable Dk, and tight impedance control for accurate object detection.
Cellular Telecommunications Systems
Enables high-performance components for 5G/6G infrastructure, including mmWave base station antennas, beamforming networks, and backhaul equipment demanding low loss and stable phase response.
Global Positioning Satellite (GPS) Antennas
Supports high-precision GPS/GNSS antennas requiring stable performance across environmental conditions. And supports precise location tracking through high-performance RF circuitry.
Patch Antennas for Wireless Communications
mmWave77 is widely used in patch antennas for Wi-Fi 6E, 60 GHz communication links, and other millimeter-wave systems, offering superior radiation efficiency and pattern consistency. Excellent substrate for designing efficient, low-loss patch antennas used in various high frequency wireless links and IoT devices.
Remote Meter Readers
The material supports RFID-based meter reading systems, where reliable long-range communication and signal integrity are necessary for accurate data transmission. Suitable for smart metering solutions requiring long-range and low-power wireless connectivity.
Direct Broadcast Satellites
mmWave77 enables high-performance satellite dish antennas and downlink modules, where low-loss and stable dielectric properties are crucial for signal clarity and reception quality. Supports components in satellite communication ground terminals and receivers operating at Ku-band (12-18 GHz) and Ka-band (26-40 GHz), where low loss and stability are key.
Shengyi mmWave77 laminates represent a powerful combination of electrical performance, thermal resilience, and manufacturing flexibility, tailored for the most demanding millimeter wave and high frequency applications. By choosing mmWave 77 laminate, manufacturers can achieve superior performance, enhanced safety, and extended product lifetimes.
If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).











