Brief Introduction
with the development of electronic communication technology, the communication frequency
Is becoming higher and higher, and the high frequency signal transmission, need to use low
Dielectric constant (Dk), low dielectric loss (Df) but expensive special materials. these materials
Have cyanate and high frequency materials such as polytetrafluoroethylene / ceramic based
Materials (PTFE/Ceramic), hydrocarbons / ceramic based materials (Hydra Carbon/Ceramic).
Usually these materials are expensive. 
Reducing the cost is an important means for customers to improve the competitiveness of
Products. Therefore, the customers adopt the laminated structure of mixed materials in the
Design of PCB structure, that is, the necessary signal layer uses high-frequency materials to
Meet the needs of signal transmission. Other line layers are made of conventional fiberglass
Epoxy FR-4, which we call a hybrid board.

Available high frequency material (Core)
RO4350BRO4003C
4mil (0.1mm)8mil (0.203mm)
6.6mil (0.168mm)12mil (0.3mm)
10mil (0.254mm)20mil (0.508mm)
13.3mil (0.338mm)32mil (0.813mm)
20mil (0.508mm)60mil (1.524mm)
30mil (0.762mm)
60mil (1.524mm)


PCB Case: Hybrid PCB 4 Layer RO435B and FR4
Combined with Immersion Gold
(Printed circuit boards are custom-made products, the picture and parameters shown are
Just for reference)

General description
this is a type of high frequency PCB built on RO4350B and FR-4 mixed for the application
of attenuator. It's a 4 layer RF PCB board at 1.6 mm thick. It's immersion gold finish with
Green solder mask and white silkscreen. It's fabricated per IPC 6012 Class 2 using supplied
Gerber data. Each 10 boards are packed for shipment. 


Features and benefits
RO4350B exhibits a stable dielectric constant over a broad frequency range. this makes
It an ideal substrate for broadband applications.
No corrosion in acids, alkali and aqua regia.
Excellent high frequency performance due to low dielectric tolerance and loss.
ENIG has good oxidation resistance and good heat dissipation.
Comprehensive equipment management and maintenance and process control, 
Engineering design prevents problems from occurring in pre-production. 
1-10 pieces are offered.
High quality helps customers win cost-saving.
UL conformed

Application
RF transmitter, Directional coupler, RF Identification, 3G antenna

Parameter and data sheet