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: Double Sided High Frequency PCB Made on
30 mil RO4350B with HASL Lead Free
(Printed circuit boards are custom-made products, the picture and parameters shown are
Just for reference)

General description
this is a type of double sided PCB built on high frequency material with Tg 280C for the
Application of WiFi System. It's 0.80 mm thick, white silkscreen over green solder mask on
Top layer. No solder mask on bottom layer and HASL covering entire bottom side. the base
Material is used from RogersCorp, 30mil (0.762mm) RO4350B, entire board supplying single
up. They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 25 boards are
Packed for shipment. 

Features and benefits
Exhibits a stable dielectric constant over a broad frequency range;
An ideal substrate for broadband applications;
Excellent high frequency performance due to low dielectric tolerance and loss;
Meeting your PCB needs from prototype to mass production;
Make delivery on time. Higher than 98% on-time-delivery rate;
16000 square meter workshop;
Hassle-free, one-to-one after-sales service;


Application
Satellite antenna,VHF radio,Optoelectronic Transmitters,Duplexer


Parameter and data sheet