Microwave and RF PCB Built on Rogers 20mil 30mil 60mil AD250C
Antenna Material With Dielectric Constant (DK) of 2.50
(Printed Circuit Boards are custom-made products, the picture and
parameters shown are just for reference)
General Description
Rogers AD250C antenna PCBs are PTFE based with woven fiberglass and
micro-dispersed ceramic filled composites that provide controlled
dielectric constant (2.50 +/-0.04), low loss (0.0014 loss tangent
at 10GHz) and low passive intermodulation (PIM) performance which
is good for antenna applications. Among Rogers antenna grade
materials, they are a type of cost-effective high frequency PCB for
today's telecommunication infrastructure, combining chemistry
composites and design of build-up structure. AD250C PCB uses low
profile copper (reverse treated ED copper foil), this helps
reducing both conductive losses and antenna PIM.
Typical Properties
| Electrical Properties | AD250C | Units | Test Conditions | Test Method |
| PIM (30mil/60mil) | -159/-163 | dBc | Reflected 43 dBm swept tones at 1900 MHz, S1/S1 | Rogers Internal 50 ohm |
| Dielectric Constant (process) | 2.52 | - | 23°C @ 50% RH | 10 GHz | IPC TM-650 2.5.5.5
(IPC TM-650 2.5.5.3) |
| Dielectric Constant (design) | 2.50 | - | C-24/23/50 | 10 GHz | Microstrip Differential Phase Length |
| Dissipation Factor (process) | 0.0013 | - | 23°C @ 50% RH | 10 GHz | IPC TM-650 2.5.5.5 |
| Thermal Coefficient of Dielectric Constant | -117 | ppm/ºC | 0°C to 100°C | 10 GHz | IPC TM-650 2.5.5.5 |
| Volume Resistivity | 4.8 x 10^8 | Mohm-cm | C-96/35/90 | - | IPC TM-650 2.5.17.1 |
| Surface Resistivity | 4.1 x 10^7 | Mohm | C-96/35/90 | - | IPC TM-650 2.5.17.1 |
| Electrical Strength (dielectric strength) | 979 | V/mil | - | - | IPC TM-650 2.5.6.2 |
| Dielectric Breakdown | >40 | kV | D-48/50 | X/Y direction | IPC TM-650 2.5.6 |
| Thermal Properties |
| Decomposition Temperature (Td) | >500 | ˚C | 2hrs @ 105˚C | 5% Weight Loss | IPC TM-650 2.3.40 |
| Coefficient of Thermal Expansion - x | 47 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Coefficient of Thermal Expansion - y | 29 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Coefficient of Thermal Expansion - z | 196 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Thermal Conductivity | 0.33 | W/mK | - | z direction | ASTM D5470 |
| Time to Delamination | >60 | minutes | as-received | 288˚C | IPC TM-650 2.4.24.1 |
| Mechanical Properties |
| Copper Peel Strength after Thermal Stress | 2.6
(14.8) | N/mm (lbs/in) | 10s @288˚C | 35 μm foil | IPC TM-650 2.4.8 |
| Flexural Strength (MD/CMD) | 8.8/6.4 (60.7/44.1) | MPa (ksi ) | 25°C ± 3°C | - | ASTM D790 |
| Tensile Strength (MD/CMD) | 6.0/5.6 (41.4/38.6) | MPa (ksi ) | 23°C/50% RH | - | ASTM D3039/D3039-14 |
| Flex Modulus (MD/CMD) | 885/778 (6,102/5,364) | MPa (ksi ) | 25°C ± 3°C | - | IPC-TM-650 Test Method 2.4.4 |
| Dimensional Stability (MD/CMD) | 0.02/0.06 | mils/inch | after etch + bake | - | IPC-TM-650 2.4.39a |
| Physical Properties |
| Flammability | V-0 | - | - | - | UL-94 |
| Moisture Absorption | 0.04 | % | E1/105 +D48/50 | - | IPC TM-650 2.6.2.1 |
| Density | 2.28 | g/cm3 | C-24/23/50 | - | ASTM D792 |
| Specific Heat Capacity | 0.813 | J/g°K | 2 hours at 105°C | - | ASTM E2716 |
Typical Applications
1.Automotive Telematics Antenna Systems
2.Base Station Antenna Applications
3.Cellular Infrastructure Base Station Antenna
4.Commercial Satellite Radio Antenna
5.Digital Audio Broadcasting (DAB) Antennas
6.Radar Manifolds and Feed Networks
Our PCB Capability (AD250C)
| PCB Material: | PTFE based Woven Fiberglass/Ceramic Filled Composites |
| Designation: | AD250C |
| Dielectric constant: | 2.50 (10 GHz) |
| Dissipation factor | 0.0013 (10 GHz) |
| Layer count: | Double Sided PCB, Multilayer PCB, Hybrid PCB |
| Copper weight: | 1oz (35µm), 2oz (70µm) |
| Dielectric thickness | 20mil (0.508mm), 30mil (0.762mm), 60mil (1.524mm) |
| PCB size: | ≤400mm X 500mm |
| Solder mask: | Green, Black, Blue, Yellow, Red etc. |
| Surface finish: | Bare copper, HASL, ENIG, Immersion silver, Immersion tin, OSP, Pure
gold plated etc.. |
Our Advantages
Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd
is an established high frequency PCB supplier and exporter in
Shenzhen China, severing cellular base station antenna, satellite,
high frequency passive components, microstrip line and band line
circuit, millimeter wave equipment, radar systems, digital radio
frequency antenna and other fields worldwide for 19 years. Our high
frequency PCBs are mainly built on 3 high frequency material
brands: Rogers Corporation, Taconic and Wangling. Dielectric
constant ranges from 2.2 to 10.2 etc.
It includes following materials, but not limited to.
RO4350B, RO4003C, RO4730G3, RO4360G2, RO4533, RO4534, RO4535,
RO4835, RO3003, RO3006, RO3010, RO3035, RO3203, RO3210;
RT/Duriod 5880; RT/Duriod 5870, RT/Duriod 6002, RT/Duroid 6010,
RT/duroid 6035HTC; RT/duroid 5880LZ;
TMM3, TMM4, TMM6, TMM10, TMM10i, TMM13i, Kappa 438;
TLF-35; RF-35TC, RF-60A, RF-60TC, RF-35A2, RF-45, RF-10, TRF-45;
TLX-0, TLX-6, TLX-7, TLX-8; TLX-9, TLY-3, TLY-5, TLY-5Z;
F4B (DK2.2 DK2.65 DK2.85 DK2.94, DK3.0, DK3.2, DK3.38, DK3.5,
DK4.0, DK4.4, DK6.15, DK10.2);
AD250C, AD255C, AD300D, AD350A, AD450, AD600, AD1000, TC350; TC600;
DiClad 880, DiClad 870, DiClad 527, IsoClad 917
Nelco N4000, N9350, N9240;
