Rogers RO4350B RF Microwave Circuit Boards

With the increasing number of built-in functions in wireless systems, the demand for small size, low-cost printed circuit antennas is increasing, such as a mobile phone that must support Bluetooth, cellular operation, global positioning system (GPS) and other functions. Several different types of antennas are available for multiple cellular communication bands contained in a device. Due to the high permittivity of ceramic substrate material, the antenna is usually fabricated on ceramic substrate material to reduce the space occupied by antenna. Low cost antenna on ro4350b, a typical laminate from Rogers. For the RF and digital electronic parts of the portable field strength meter under development, the size and space occupied by the antenna made on ro4350b material are the same as those on the ceramic substrate.

Rogers ro4350b PCB material is a reinforced glass hydrocarbon / ceramic material that can be processed in the same way as low-cost printed circuits are made on FR-4 substrate materials. It has a dielectric constant of 3.48 at 10 GHz, which makes it commonly used in high frequency power amplifier design. The ro4350b laminate has a low coefficient of thermal expansion (CTE) along the z-axis, which ensures high stability of multilayer circuits interconnected by metallized via (PTH).

Real Project display:

Rogers RO4350B is a hydrocarbon/ceramic laminates with a dielectric constant of 3.48.

Advantages:

1. Low DK fluctuates with temperature
2. Low Z axis thermal expansion coefficient
3. Low internal expansion coefficient
4. Low DK tolerance
5. Stable electrical characteristics at different frequencies
6. Easy for mass production and multi-layer mixing of FR4, high cost performance.

RF/Microwave PCB application

PCB printed circuit boards with radio frequency(RF PCBs) are an increasingly used technique within the PCB industry.

RF PCB with a high frequency with works above 100 MHz.

Microwave PCB with works above 2 GHz radio frequency.

RF-pcb’s are used in different applications such as remote controls(wireless controls)security,smartphones,sensors etc.

New technologies make more and more use of these RF applications.

This asks for a manufacturing according to high quality standards and choosing the right RF materials depending on the application.

It is important that one knows the properties of the various materials.Choosing the right material is perhaps the most critical decision in the production process of the RF PCB.