Active Member
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[China]
Address: 6-11C Shidai Jingyuan Fuyong Town, Baoan District, Shenzhen City, Guangdong Province, China
Contact name:Sally Mao
Shenzhen Bicheng Electronics Technology Co., Ltd |
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PTFE High Frequency PCB Built On 3.0mm F4B RF PCB Board for Patch Antenna
(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 3.0mm PTFE substrate for the application of Patch Antenna.
Basic specifications
Base material: F4B 3.0mm thick
Dielectric constant: 2.55+/-0.02
Layer count: 2 layers
Type: Through holes
Format: 110mm x 65mm = 1 type = 1 piece
Surface finish: OSP
Copper weight: Outer layer 35 μm
Solder mask | Legend: Green | No
Final PCB height: 3.0 mm
Standard: IPC 6012 Class 2
Packing: 20 pieces are packed for shipment.
Lead time: 7 working days
Shelf life: 6 months
Applications
Multiplexer, Acoustic Detection Sensors, Radio Frequency, RF Transceiver
Our PCB Capability
| PCB Material: | Fibre glass coated PTFE |
| Code: | F4BM-1/2 (family series) |
| Dielectric constant: | 2.2, 2.55, 2.65, 3.0 and 3.5 |
| Layer count: | 1 Layer, 2 Layers and multi-layer |
| Copper weight: | 0.5oz (17 µm), 1oz (35µm), 2oz (70µm), 3oz (105µm) |
| PCB thickness: | 0.25mm, 0.5mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm, 12.0mm |
| PCB size: | ≤400mm X 500mm |
| Solder mask: | Green, Black, Blue, Yellow, Red etc. |
| Surface finish: | Bare copper, HASL, ENIG, Silver, OSP,etc. |
Polytetrafluoroethylene (Short for PTFE), commonly known as "plastic king ", is a polymer compound made of tetrafluoroethylene by polymerization. It has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-viscosity, electrical insulation and good aging resistance. Used as engineering plastic, it can be made into PTFE tube, rod, belt, plate, film and so on. Generally it’s used in high performance requirements of corrosion-resistant pipes, containers, pumps, valves as well as radar, high-frequency communication equipment, radio equipment.
Polytetrafluoroethylene (F4,PTFE) has a series of excellent performance:
1.high temperature resistance: long-term use temperature 200~260 degrees Celsius.
2.low temperature resistance: still soft at -100 degrees Celsius;
3.corrosion resistance: resistant aqua regia and all organic solvents;
4.climate resistance: best aging life in plastics;
5.high lubrication: with the smallest friction coefficient in plastics (0.04);
6.Non-viscous: with minimal surface tension in solid materials without adhering to any substance;
7.non-toxic: with physiological inertness;
8.excellent electrical properties, ideal for C class of insulating materials, a thick layer of stack of newspaper can block 1500 V of high voltage;
9.smoother than ice.
F4BM-1/2 is laminated by laying up of varnished glass cloth with Teflon resin, according to the scientific formulation and strict technology process. This product takes some advantages over F4B series in the electrical performance(wider range of dielectric constant,lower dielectric loss angle tangent,increased resistance,and more stability of performance)
At RF and Microwave frequencies, the dielectric constant of PTFE materials is as low as 3.5 or below, which keeps strong signal during transmission across PCB, making them ideal for overcoming the high speed limitation of FR-4.
Electrical properties of F4B PTFE
| Name | Test condition | Unit | Value | |||
| Density | Normal state | g/ cm3 | 2.1～2.35 | |||
| Moisture Absorption | Dip in the distilled water of 20±2℃ for 24 hours | % | ≤0.02 | |||
| Operating Temperature | High-low temperature chamber | ℃ | -50℃～+260℃ | |||
| Thermal Conductivity | W/m/k | 0.8 | ||||
| CTE (typical) | 0～100℃ (εr :2.1~2.3) | ppm/℃ | 25(x) | |||
| 34(y) | ||||||
| 252(z) | ||||||
| CTE (typical) | 0～100℃ (εr :2.3~2.9) | ppm/℃ | 14(x) | |||
| 21(y) | ||||||
| 173(z) | ||||||
| CTE (typical) | 0～100℃ (εr :2.9~3.5) | ppm/℃ | 12(x) | |||
| 15(y) | ||||||
| 95(z) | ||||||
| Shrinkage Factor | 2 hours in boiling water | % | 0.0002 | |||
| Surface Resistivity | 500V DC | Normal state | M·Ω | ≥1×104 | ||
| Constant humidity and temperature | ≥1×103 | |||||
| Volume Resistivity | Normal state | MΩ.cm | ≥1×106 | |||
| Constant humidity and temperature | ≥1×105 | |||||
| Pin Resistance | 500V DC | Normal state | MΩ | ≥1×105 | ||
| Constant humidity and temperature | ≥1×103 | |||||
| Surface dielectric strength | Normal state | d=1mm(Kv/mm) | ≥1.2 | |||
| Constant humidity and temperature | ≥1.1 | |||||
| Dielectric Constant | 10GHZ | εr | 2.20,2.55,2.65,3.0,3.5 | |||
| (±2%) | ||||||
| Dissipation Factor | 10GHZ | tgδ | 2.2 | ≤7×10-4 | ||
| 2.55~2.65 | ≤1×10-3 | |||||
| 3.0~3.5 | ≤1.5×10-3 | |||||
