Brief Introduction
Just as its name implies, high frequency is that the frequency is relatively high, generally refers
to the frequency of >=300 MHz (i.e. Wave length <=1m), that is, the usual radio frequency
Band. the electromagnetic wave of frequency >=1GHz is named microwave.
Typical frequencies for wireless applications:
* Current: 0.9GHz - 2GHz
* 3G systems: 2.5GHz
* Bluetooth: 2.5GHz
* GPS: 12.6GHz
* LMDS: 24GHz and 40GHz
* Automotive: 77GHz
Market: RFID, Wireless communications, base station and antenna, amplifier, military products,
Consumer electronics.  
High frequency printed circuit board or microwave PCB refers to the printed circuit board made
on the high frequency (microwave) substrate copper clad plate. the common types are: Double
-sided board, multilayer board and mixed structure.
Mixed structure includes high performance special substrate, PP sheet + ordinary performance
Board and PP sheet mixed pressing board; high frequency substrate + ordinary FR4 substrate;
High frequency substrate + metal base etc.

PCB Case: High Frequency PCB RO4350B 20 mil 2
Layer with Immersion Gold
(PCB's 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 for the application of RF module.
It's a 2 layer RF PCB board at 0.6 mm thick. It's immersion gold finish with solder mask
and silkscreen from Taiyo. It's fabricated per IPC 6012 Class 2 using supplied Gerber
Data. Each 10 boards are packed for shipment. 


Features and benefits
Low water absorbability influences dielectric constant and dielectric loss less at damp.
Heat resistance, chemical resistance, impact strength and peeling strength are good.
the temperature coefficient of dielectric constant is among the lowest of any circuit
Board material, making it ideal for temperature sensitive applications.
ENIG has good oxidation resistance and good heat dissipation.
DDU Door to door shipment with competitive shipping cost,
Engineering design prevents problems from occurring in pre-production. 
on-time service
More than 15 years' experience
High technology


Application
Antenna, Multicoupler combiner, Indoor wall hanging antenna, Duplexer

Parameter and data sheet