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 called microwave.
Typical frequencies for wireless applications:
* Current mobile: 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: RF PCB Board Built On RO4350B 20 mil 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 double sided high frequency PCB built on RO4350B 20 mil substrate for
the application of antenna. It's a 2 layer RF PCB board at 0.6 mm thick. It's immersion gold
finish without solder mask. It's fabricated per IPC 6012 Class 2 using supplied Gerber data.
Each 20 boards are packed for shipment.
Features and benefits
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.
Stable electrical coefficient of dielectric constant.
Heat resistance, chemical resistance, impact strength and peeling strength are good.
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.
Whole fabrication processes are totally controlled.
thermal stress test, reliability test, insulation resistance test and ionic contamination test,
1-10 pieces are offered.
Reduce manufacturing cost from advanced equipment import, worker training and technology
improvement and management.
UL conformed
Application
Balanced mixer, Multicoupler combiner, Tower-mounted booster, Power amplifier
Parameter and data sheet
| PCB SIZE |
67 x 17 mm =1up |
| BOARD TYPE |
Double sided PCB |
| Number of Layers |
2 layers |
| Surface Mount Components |
YES |
| Through Hole Components |
NO |
| LAYER STACKUP |
copper ------- 35um(1 oz)+plate TOP layer |
| RO4350B 0.508mm |
| copper ------- 35um(1oz) + plate BOT Layer |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
7.9 mil / 5.9 mil |
| Minimum / Maximum Holes: |
0.4 mm / 0.4 mm |
| Number of Different Holes: |
1 |
| Number of Drill Holes: |
1 |
| Number of Milled Slots: |
0 |
| Number of Internal Cutouts: |
0 |
| Impedance Control: |
no |
| Number of Gold finger: |
0 |
| BOARD MATERIAL |
|
| Glass Epoxy: |
RO4350B Tg280ºC, er<3.48, Rogers Corp. |
| Final foil external: |
1.5 oz |
| Final foil internal: |
N/A |
| Final height of PCB: |
0.6 mm ±0.1 |
| PLATING AND COATING |
|
| Surface Finish |
Immersion gold, 87% |
| Solder Mask Apply To: |
N/A |
| Solder Mask Color: |
N/A |
| Solder Mask Type: |
N/A |
| CONTOUR/CUTTING |
Routing |
| MARKING |
|
| Side of Component Legend |
N/A |
| Colour of Component Legend |
N/A |
| Manufacturer Name or Logo: |
N/A |
| VIA |
Plated through hole(PTH), minimum size 0.4mm. |
| 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. |
Why choose us?
1) Focus on your core competencies: We've deeply known it is full of fierce competition for
our customers in the market. You can focus on such important competencies as research
and development, sales and marketing based on our professional performance and skilled
services that exceeding your expectation.
2) Cutting-edge technology: it is rational for a small and medium-sized customer to hanker
after the latest equipment and manufacturing expertise for its PCBs. By the partnerships
with Bicheng PCB, you gain access to reach your expectation with our 3 factory bases with
over 26,000 square meters.
4) Save the cost of production: Production cost is one of the key points of our customers'
product competitiveness. Bicheng PCB have been striving to reduce its manufacturing
cost from equipment introduce, worker training and technology improvement to increase
their profitability. Customers are satisfied with our cost savings but without quality loss.
5) Avoid hassle: It's an upset matter when quality problem hassling you. Bicheng engineering
design prevents problem from occurring in pre-production. You will not get headache with
Bicheng prototypes, small orders and volume production. Our rate of customer complaint
is less than 1% and will be solved satisfactory.
6) Save time: Market requires the products updating quickly. Bicheng PCB always works
fast and flexible to save the time of production from prototype to standard production, quick
turn-around or scheduled deliveries.
7) An excellent team: Bicheng is trustworthy partner with passion, discipline, responsibility
and honesty. We have a team of experienced sales persons and skilled customer services.
Do not change your supplier. If change is must, Bicheng is the right one for you.
Variety of PCBs
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