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 Built on 30mil
RO4350B 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 2-layer PCB built on 30mil RO4350B substrate with Tg 280C for the
Application of Splitter HDMI. It's 0.8 mm thick with white silkscreen (Taiyo) on green
Solder mask (Taiyo) and immersion gold on pads. the base material is from Rogers
Supplying single up PCB. They're fabricated per IPC 6012 Class 2 using supplied Gerber
Data. Each 50 boards are packed for shipment. 

Features and benefits
Excellent high frequency performance due to low dielectric tolerance and loss.
Delamination of copper foil will not be caused by the change of cold and heat due
to the consistency with the thermal expansion coefficient of copper foil. 
the characteristic of low dielectric loss makes the signal loss at a lower level, which
Makes the signal transmission of the whole equipment excellent.
ENIG has good oxidation resistance and good heat dissipation.
DDU Door to door shipment with competitive shipping cost,
Whole fabrication processes are totally controlled. 
Fast and flexible to save the time of production from prototype to standard production
Small quantity order is accepted
UL recognized and RoHS Directive-compliant


Application
Mixer,Radar sensors,RF Switches,Automatic gate induction, Antenna combiner, Transmitter
Combiner 

Parameter and data sheet