Advantages Of Using The Rogers RO4835™ High-frequency Laminate

Rogers RO4835 is a type of high-frequency board that raw material is produced by Rogers company . It is different from the conventional PCB board—epoxy resin (FR4). It has no glass fiber in the middle and uses a ceramic base as the high frequency material.

Rogers has superior dielectric constant and temperature stability. Its dielectric constant thermal expansion coefficient is very consistent with copper foil, which can be used to improve the deficiencies of PTFE substrates. It is very suitable for high speed electronic design commercial microwave, and radio frequency applications. Its low water absorption is ideal for high-humidity applications, providing customer in the high frequency board industry with the highest quality materials and related resources, which fundamentally enhance product quality.

QFPCB factory specializes in providing turnkey service of customized PCB & PCBA solutions to meet the diverse needs of our clients. Our factory is committed to providing one-stop PCB & SMT assemble solutions to drive technological advancement and innovation.

QFPCB factory always stocks most the thickness and specifications of RO4835, RO4003C, RO3003C, RO4350B, RO5880, AD255 and RO4450F prepregs, which can meet your immediate response PCB needs. We have rich experience in RFID data process engineering and a complete high-frequency material processing control system to ensure product design functions. QFPCB offers the best services when it comes to the Rogers high frequency PCB Materials,so please feel free to contact us.

QFPCB factory is engaged in the PCB prototype manufacturer of Rogers high-frequency PCB boards, which can meet the various high-frequency PCB needs of customers. Currently, it can achieve 4~20 layers of ceramic pure pressure and more than 20 layers of mixed pressure.

We were contracted to assemble a PCB for use in a military communication applications and  provided Rogers 4835, Rogers 4350B, Rogers 4003C, Rogers 3003C and RT5880 material assembly services. There are no MOQ 1 panelization is ok. We will perform final testing using automated optical inspections and  x-ray inspection prior to product delivery. There will be strict impedance control following specification with a testing report.

With services (special 5G application) from consumer to military PCB industries, we continuously strive to build Rogers PCB products that exceed your expectations, develop long-term customer relationships, and become your best possible manufacturing partner.

What is the Rogers RO4835™ laminate?

RO4835™ laminate has excellent thermo-mechanical properties,and electrical characteristics that antenna designers need. The laminates have a dielectric constant (Dk) of 3.48 and a loss tangent (Df) of 0.0037 measured at 10 GHz.These values allow antenna designers to realize substantial gain values while minimizing signal loss. RO4835™laminates share similar electrical and mechanical properties with RO4350B™ laminates and are designed for high frequency performance and cost-effective circuit fabrication. It uses standard epoxy/glass (FR-4) processes and is competitively priced.

Rogers’ RO4835™ laminate, part of the RO4000® series, offers enhanced stability at high temperatures and is more resistant to oxidation than other hydrocarbon materials. Thermoset laminate materials, including FR-4, are affected by oxidation over time and temperature. This can slightly increase the dielectric constant and dissipation factor of the circuit substrate. The change rate and impact on circuit performance vary based on design and operating temperature.

6Layers 60G millimeter wave PCB Stack-Up
6 Layers 60G millimeter wave PCB Stack-Up

For frequencies above 500 MHz, RO4000 materials are ideal due to their low dielectric loss, making them suitable for RF microwave circuits and controlled impedance transmission lines. The material’s thermal coefficient of expansion (CTE) matches copper, ensuring excellent dimensional stability and reliable plated through-hole quality in mixed dielectric multi-layer boards, even under thermal shock. RO4000 laminates have a Tg of >280°C (536°F), ensuring stable expansion characteristics throughout circuit processing temperatures.

Features of Rogers RO4835™ data sheet

Key Features of Rogers RO4835™ laminate

  • High Tg ( same as RO4000® laminate – >280°C)
  • RO4835 laminate (low loss)
  • Low in-plane expansion coefficient
  • Tight dielectric constant tolerance
  • Lead-free process compatible
  • CAF resistant

Benefits of Rogers RO4835™ laminate for PCBs

RO4835™ laminates are RoHS compliant and suitable for UL 94V-0 certified applications.

RO4000 series laminates can be processed using standard FR-4 techniques without specialized via preparation. They are rigid, thermoset laminates, compatible with automated systems and scrubbing equipment for copper surface preparation.

Significantly improved oxidation resistance compared to typical thermoset microwave materials
Designed for performance sensitive, high volume applications

Low loss
• Excellent electrical performance allows application with higher operating frequencies.
• Ideal for automotive applications.

Tight dielectric constant tolerance
• Controlled impedance transmission lines

Lead-free process compatible
• No blistering or delamination Low Z-axis expansion
• Reliable plated through holes

Low in-plane expansion coefficient
• Remains stable over an entire range of circuit processing temperatures

Applications of Rogers RO4835™ laminate for PCBs

Rogers offers one of the industry’s widest selection of circuit board substrate materials to meet the needs of various applications.This laminate features excellent electrical properties, such as low dielectric loss and stable dielectric constant over a wide frequency range, making it particularly suitable for RF and microwave applications.

Automotive Radar and Sensors

Rogers RO4835™laminate is a high-frequency material specifically designed for use in automotive radar and sensor applications. This advanced laminate exhibits excellent electrical properties, including low dielectric constant and low loss tangent, which are critical for ensuring optimal signal integrity in high-frequency environments.

Point-to point Microwave

Rogers RO4835™ laminate is utilized in point-to-point microwave communication systems, where it serves as a critical component for ensuring efficient signal transmission over long distances. This high-frequency laminate is engineered to provide exceptional electrical performance, characterized by its low dielectric constant and minimal loss tangent. These properties are essential for maintaining signal integrity and minimizing attenuation during the transmission of microwave signals.

Power Amplifiers&RF Components

Rogers RO4835™ laminate is employed in the construction of power amplifiers, where it plays a vital role in enhancing performance and efficiency. This high-frequency laminate is specifically designed to meet the rigorous demands of RF (radio frequency) applications, making it an ideal choice for use in power amplifier circuits.

As advancements continue in wireless communication technologies—such as 4G/5G networks—the demand for efficient and reliable power amplifiers grows correspondingly. In this context, materials like Rogers RO4835 will remain integral to developing next-generation devices capable of meeting increasing performance requirements while ensuring longevity and reliability in diverse operating environments.

Phased – Array Radar

Rogers RO4835™ laminate is utilized in Phased-Array Radar systems due to its excellent electrical properties and thermal stability. This material features a low dielectric constant of approximately 3.48, which contributes to reduced signal loss and improved performance at microwave frequencies. Additionally, the laminate exhibits a low dissipation factor, ensuring minimal energy loss during signal transmission.

Phased-Array Radar systems benefit from the use of this laminate as it enables rapid electronic steering of beams without moving parts, resulting in faster target acquisition and tracking capabilities. The durability and reliability of Rogers RO4835™ also make it suitable for harsh environmental conditions often encountered in military operations or space exploration.

The Rogers RO4835™ material technology enable higher circuit densities, improved signal speed and integrity, and enhanced reliability in PCBs. Used by PCB manufacturers worldwide to construct high-end circuit boards for advanced electronic devices. In order to support R&D for universities  and institutions,The Rogers PCB is for sale at a competitive price, even with small quantity orders. If you need design suggestions and consultation, you are welcome to contact us.

If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).

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