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PCB Material List

Rogers third generation hydrocarbon resin ceramic pcb material kappa 438

PCB Material List

Rogers third generation hydrocarbon resin ceramic pcb material kappa 438

Rogers third generation hydrocarbon resin ceramic pcb material kappa 438

The dielectric constant stability, loss factor and thickness consistency of Rogers kappa 438 are better than those of the conventional FR-4 PCB, so it is suitable for applications with high requirements for loss and stability.


Rogers kappa438 keeps the low loss characteristic of Rogers. This is an important item in RF design. The DK value of Rogers kappa 438 is 4.38, close to FR-4, while the loss factor is only 0.005 at 10 GHz. It is the ideal choice for high-end FR-4 upgrade.

Rogers kappa 438 PCB material

Rogers kappa 438 PCB material

Rogers kappa 438 PCB material is a thermosetting laminate of hydrocarbon resin ceramics, designed for wireless design engineers looking for better performance and higher reliability of FR-4 alternative materials.

As we all know, the exponential growth of wireless data demand brings higher level of mobile network capacity and performance requirements. FR-4 has always been the first choice for many RF applications with low performance requirements. However, with the change of wireless transmission infrastructure, the performance requirements are also increasing, especially in the small base station and carrier level Wi Fi / license assisted access (LAA) applications, the RF performance and consistency of traditional FR-4 have been difficult to meet the design requirements.


Wireless circuit design engineers can get a real breakthrough through Rogers, because they break the performance limit of traditional FR-4. They are intermediate circuit materials with high cost performance and stability. Rogers kappa 438 PCB material has low loss, excellent dielectric constant (DK) tolerance control and strict thickness control, which can provide excellent and stable wireless performance for circuits

Rogers kappa 438 PCB material has low z-axis CTE and high Tg characteristics, which can improve design flexibility, PTH reliability and automatic assembly compatibility, and can be processed with standard epoxy / glass (FR-4) process. The laminate is compatible with conventional adhesive sheets, can use lead-free soldering process, and has UL94 V-0 flame retardant grade. In addition, a design DK of 4.38 makes it easy to replace existing FR-4 based designs in designs that require better electrical performance.


Advantages of Rogers kappa 438 PCB Material:

High dielectric constant (4.38 DK @ 2.5 GHz) reduces circuit size

Lower conductor loss and improved heat treatment capability

Similar to FR-4, it is easy to process and assemble

A design DK of 4.38 makes it easy to replace existing FR-4 based designs in designs that require better electrical performance.

Consistent circuit performance

Optimized design flexibility, PTH reliability and auto assembly compatibility

UL 94 V-0 compliant


Application of Rogers kappa 438 PCB Material:

Base station antenna, carrier grade Wi Fi / license assisted access (LAA), small base station and distributed antenna system, Internet of vehicles: vehicle to vehicle / vehicle and infrastructure, Internet of things: smart home and wireless measurement, RFID, ground radar, Beidou system, car antenna, indoor ceiling antenna