2.92mm Micro-strip RF Connectors are precision end-launch (edge-mount) microwave connectors designed to transition planar microstrip transmission lines on printed circuit boards to a standard 2.92mm coaxial interface. Supporting frequencies up to 40 GHz with a characteristic impedance of 50Ω, these connectors are widely used in microwave circuits, millimeter-wave modules, RF test fixtures, communication equipment, and high-frequency PCB assemblies. Their end-launch structure enables accurate impedance transition between the PCB microstrip line and coaxial cable, helping maintain signal integrity across high-frequency systems.
The primary function of 2.92mm Micro-strip RF Connectors is to provide a low-loss interface between edge-mounted printed circuit boards and external RF measurement or transmission equipment. Precision machining, controlled dielectric geometry, and gold-plated contacts contribute to stable insertion loss, return loss, and VSWR performance. These connectors are commonly used on high-frequency substrates such as Rogers, PTFE, ceramic-filled laminates, and other microwave PCB materials where controlled impedance is required.
Yangzhou Jingcheng Electronics Co., Ltd. has focused on RF coaxial connectors, cable assemblies, and passive microwave components since 1999. Certified to ISO9001 and operating in accordance with MIL, IEC, and GB standards, the company manufactures more than 30 RF connector series with over 2,000 specifications, including precision 2.92mm connector solutions for microwave PCB applications, communication systems, aerospace electronics, automotive electronics, and RF measurement equipment.
Common Types and Features of 2.92mm Micro-strip RF Connectors
End-Launch (Edge-Mount) Connectors
The most common configuration, designed for installation on the edge of microwave PCBs. It provides a direct transition from the microstrip line to the coaxial interface while minimizing discontinuities.
Standard PCB Thickness Versions
Available for multiple PCB thicknesses, allowing designers to match connector dimensions with substrate thickness for improved impedance continuity.
Flange Mount Connectors
Flange-mounted versions provide additional mechanical stability for RF modules, microwave housings, and repeated connection applications.
Precision Test Connectors
Designed for laboratory measurements and production testing, these connectors support repeatable electrical performance and accurate microwave characterization.
Typical Applications
- Microwave and millimeter-wave PCB circuits
- RF evaluation boards and development kits
- 5G communication equipment
- Vector network analyzer test fixtures
- Radar modules and phased-array systems
- Satellite communication equipment
- Aerospace and defense electronics
- Semiconductor measurement systems
- High-frequency laboratory research
- Microwave amplifier and filter modules
Selection Guide for 2.92mm Micro-strip RF Connectors
PCB Thickness
Select a connector specifically designed for the PCB thickness to maintain proper center conductor alignment and controlled impedance at the transition point.
Substrate Material
PCB dielectric constant and substrate type influence impedance matching. Connector dimensions should correspond to the microwave substrate being used.
Operating Frequency
Confirm that the connector frequency rating satisfies the system requirements. Standard 2.92mm micro-strip connectors are commonly designed for applications up to 40 GHz.
Mechanical Installation
Consider flange style, mounting holes, connector orientation, and enclosure design to ensure secure installation and repeatable performance.
Electrical Performance
Evaluate insertion loss, return loss, VSWR, impedance consistency, and mating cycle requirements when selecting connectors for microwave circuits.
2.92mm Micro-strip RF Connectors vs Other PCB RF Connectors
| Connector Type |
Typical Frequency |
Mounting Style |
Typical Applications |
| 2.92mm Micro-strip RF Connectors |
DC–40 GHz |
End-launch (edge mount) |
Microwave PCB transitions and RF testing |
| SMA PCB Connectors |
Typically up to 18–26.5 GHz |
Edge mount / vertical |
General RF circuit boards |
| 2.4mm PCB Connectors |
DC–50 GHz |
Edge mount |
Millimeter-wave systems |
| 1.85mm PCB Connectors |
DC–67 GHz |
Edge mount |
Ultra-high-frequency microwave circuits |
| MMCX PCB Connectors |
Typically below 6 GHz |
Surface mount |
Compact wireless electronic devices |
Frequently Asked Questions
What are 2.92mm Micro-strip RF Connectors used for?
They are designed to connect microstrip transmission lines on high-frequency PCBs to standard 2.92mm coaxial interfaces for microwave signal transmission and testing.
Why is an end-launch connector used?
End-launch connectors provide a controlled impedance transition from the PCB edge to the coaxial interface, helping reduce signal reflection and insertion loss at microwave frequencies.
How do I select the correct connector for my PCB?
Selection should consider PCB thickness, substrate material, operating frequency, connector dimensions, mounting method, and electrical performance requirements.
Which PCB materials are compatible with these connectors?
They are commonly used with high-frequency PCB materials including Rogers laminates, PTFE-based substrates, ceramic-filled materials, and other controlled-impedance microwave circuit boards.
What products does Yangzhou Jingcheng Electronics Co., Ltd. manufacture?
Yangzhou Jingcheng Electronics Co., Ltd. manufactures RF coaxial connectors, microwave cable assemblies, passive RF components, adapters, and customized interconnection solutions for communications, aerospace, automotive electronics, RF testing, and industrial applications.
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