Why Use Rogers printed circuit boards?

High frequency PCBs and RF PCBs often need high performance with low signal losses, low electrical noise, or highboard temperatures. To meet these requirements, Rogers Corporation PCB materials are ofen used as they are costeffective versus many of the alternatives that are available.

Typical Applications:

• Microwave equipment of all kinds.

• Cellular Base Station Antennas and Power Amplifiers

• Microwave point to point (P2P) links

• Automotive Radar and Sensors

• RF ldentification (RFlD) Tags

• LNB's for Direct Broadcast Satellites

Rogers series is often used in RF PCBs with frequencies 6+ GHz and in high heat applications that need ceramiclaminates and low signal losses. it may also be used to minimize electrical noise to meet stringent performancerequirements.

What are Rogers RO4000 PCB Materials?

RO4000 Series materials are high frequency circuit boards with glass reinforced hydrocarbon and ceramic laminatesRogers PCBs may consist of both cores and prepreg materials but more often than not, it is a core that carries the top 'layers of copper with the rest being standard FR4 to reduce cost unless there is an overall very high temperaturerequirement. Standard FR4 boards have a Tg of 135C to 180C while Rogers 4350B and 4003c has a Tg >= 280C.

Shown above, the Rogers materials have much less signal loss due to the PCB materials absorbing the signal vs. FR4This is also called PCB material loss. At about 6 to 7 GHz the signal loss is typically about 0.5 dB more in FR4 but this is design and signal length dependentRogers RO4003C vs. RO4350B? The main diference is the 4350 has a flammability rating. Electrical Properties aresimilar as seen below.