High Frequency
PCB Manufacturing
Kejie PCB is a high frequency PCB manufacturer specialising in Rogers and TMM series laminates for RF, microwave and millimetre-wave applications. From 5G infrastructure and automotive radar to satellite systems and antenna arrays, our engineering team works directly with your design files to ensure material selection, stack-up and controlled impedance requirements are met before production starts.
Materials We Work With
We source and manufacture with the following Rogers and TMM series laminates on a per-project basis, ensuring the correct material is matched to your frequency range, loss requirements and application:
| Material | Series | Dk | Df | Frequency Range | Typical Applications |
|---|---|---|---|---|---|
| RO4003C | RO4000 | 3.38 | 0.0027 | Up to 40 GHz | WiFi, GPS, Cellular, Antenna |
| RO4350B | RO4000 | 3.48 | 0.0037 | Up to 40 GHz | WiFi, Automotive, LNA |
| RO3006 | RO3000 | 6.15 | 0.0020 | Up to 40 GHz | Patch Antennas, GPS, RFID |
| RO3010 | RO3000 | 10.20 | 0.0022 | Up to 30 GHz | Compact Antennas, GPS, GNSS |
| RO4360G2 | RO4000 | 6.15 | 0.0038 | Up to 20 GHz | Compact Antennas, Filters |
| TMM 3 | TMM | 3.27 | 0.0020 | Up to 40 GHz | Filters, Couplers, Antennas |
| TMM 4 | TMM | 4.50 | 0.0020 | Up to 30 GHz | Power Amplifiers, Filters |
| TMM 10 | TMM | 9.20 | 0.0022 | Up to 20 GHz | Dielectric Resonators, Filters |
| TMM 10i | TMM | 9.80 | 0.0020 | Up to 20 GHz | Multilayer, Embedded Passives |
Not sure which material fits your application? As a high frequency PCB manufacturer, you can share your design requirements and our engineers will advise.
Applications We Support
Our high frequency PCB capability covers a broad range of RF and microwave applications:
- 5G / mmWave โ 24โ77 GHz boards for 5G infrastructure, base stations and mmWave communication systems
- Automotive Radar โ 24/77 GHz ADAS and radar sensor boards using low-loss laminates with tight Dk tolerance
- Satellite / Space โ 1โ40 GHz boards for satellite communications, GPS receivers and space-grade RF assemblies
- WiFi 6E / WiFi 7 โ 2.4โ7 GHz designs for next-generation wireless access points and client devices
- General RF โ 0.5โ6 GHz boards for general RF applications including filters, couplers and amplifiers
- RF Power Amplifiers โ High power RF boards requiring thermal management and controlled impedance
- Antenna & Phased Arrays โ Patch antennas, array feeds and beamforming boards across multiple frequency bands
- Prototype / Low Cost RF โ Budget-conscious RF prototypes for early-stage design validation
Our satellite and space-grade RF boards are manufactured to handle the demanding thermal and signal integrity requirements of low-earth orbit and geostationary applications. We work closely with engineers specifying boards for GPS receivers, satellite communication systems and phased array radar to ensure material selection and stack-up are validated before production begins.”
Why Engineers Choose Kejie for High Frequency PCB
- Engineer-reviewed files โ every Gerber file is manually reviewed by our CAM engineers before production, catching stack-up errors and impedance mismatches before they reach the floor
- Free DFM Review โ we review your design for manufacturability at no extra cost, including material compatibility and controlled impedance verification
- Material sourced per project โ Rogers and TMM laminates are sourced specifically for each order, ensuring fresh, certified material with full traceability
- Direct engineer access โ speak directly with our engineering team throughout your project, from material selection to final inspection
- Design Confidentiality โ your Gerber files remain private and are permanently deleted after two years of inactivity
High Frequency PCB Capabilities
| Parameter | Capability |
|---|---|
| Materials | Rogers RO3000, RO4000 series; TMM series |
| Frequency Range | Up to 40 GHz |
| Board Thickness | 0.254mm โ 3.2mm |
| Copper Weight | 0.5 oz โ 2 oz |
| Controlled Impedance | ยฑ5% tolerance |
| Surface Finish | ENIG, Immersion Silver, OSP |
| Layer Count | 2โ20 layers |
| Min Trace/Space | 0.1mm / 0.1mm |