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 30 mil Double
Sided 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 30 mil substrate for the application
of LNB. It's a 2 layer RF PCB board at 0.8 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.
Reducing signal loss in high frequency application meets the development needs of
Communication technology.
Excellent high frequency performance due to low dielectric tolerance and loss.
Immersion gold has excellent surface planarity, particularly helpful for PCBs with BGA
Packages or even CSP mounted components to reduce failure rate during assembly
and soldering.
DDU Door to door shipment with competitive shipping cost,
PCB manufacturing is strictly as per required specifications. 
1-10 pieces are offered.
Eligible products rate of first production: >95%  
RoHS materials


Application
LNA, Radar sensors, Radio frequency, Attenuator


Parameter and data sheet

PCB SIZE	62 x 57mm=1PCS
BOARD TYPE	Microwave PCB
Number of Layers	Double sided PCB
Surface Mount Components	YES
through Hole Components	YES
LAYER STACKUP	Copper ------- 17um(0.5oz)+plate TOP layer
	RO4350B 30mil (0.762mm)
	Copper ------- 17um(0.5oz)+plate BOT Layer
TECHNOLOGY
Minimum Trace and Space:	10mil/10mil
Minimum / Maximum Holes:	0.3/3.5mm
Number of Different Holes:	6
Number of Drill Holes:	73
Number of Milled Slots:	1
Number of Internal Cutouts:	1
Impedance Control	no
BOARD MATERIAL
Glass Epoxy:	RO4350B 30mil (0.762mm), Tg 288
Final foil external:	1oz
Final foil internal:	0oz
Final height of PCB:	0.8mm 0.1
PLATING and COATING
Surface Finish	Immersion gold 0.025m over 3m Nickel
Solder Mask Apply to:	TOP and Bottom, 12micron Minimum
Solder Mask Color:	Gloss Green, Taiyo PSR-2000GT600D
Solder Mas Type:	LPSM
CONTOUR/CUTTING	Routing
MARKING
Side of Component Legend	TOP
Colour of Component Legend	White
Manufacturer Name or Logo:	Marked on the board in a conductor and leged FREE AREA
VIA	Plated through hole(PTH), via tented.
FLAMIBILITY RATING	UL 94-V0 Approval MIN.
DIMENSION TOLERANCE
Outline dimension:	0.0059"
Board plating:	0.0029"
Drill tolerance:	0.002"
TEST	100% Electrical Test prior shipment
TYPE of ARTWORK to BE SUPPLIED	Email file, Gerber RS-274-X, PCBDOC etc
SERVICE AREA	Worldwide, Globally.

Variety of PCBs


Legend inkjet printer