Preamble

The N connector is a common and important type of RF and microwave communications, widely used in communication equipment, test equipment and antenna systems. The design of the N connector provides stable signal transmission, low loss characteristics and high power handling in high frequency applications. Making it become a key component in military, aerospace, communications, broadcasting, etc. This article will discuss the definition, operation principle and applications of the N connector.

What is N Connector? How N Connector Works?

The N connector is a medium sized threaded RF connector first developed by Bell Laboratories in the 1940s to solve the high frequency signal loss problem at that time. The N connector is capable of supporting frequency ranges up to 11 GHz and even up to 18 GHz and provides reliable impedance matching.

Introduction of the Working Principle of N Connector

N Connector is a threaded RF coaxial connector, consisting of a body, a center pin and a coupling nut, etc. When connecting a wrench is used to tighten the connector to achieve the correct connection and signal transmission. The structural design of the N connector itself allows it to withstand higher power transmission, and maintains lower loss and reflection coefficients over a wider range of frequencies. The N connector's rugged housing and reliable threaded connections ensure long term stable use in harsh environments.

Features of Performance for N Connector are Listed Below

N Connector V.S. SMA Connector

The N connector and the SMA connector have different uses in RF applications and the following is a comparison of the main differences:
 

 

RF Adapters for N Series

To enhance device compatibility, the following are common types of N adapters:

1. N to N Adapter: Use to connecting two N interfaces, extend cables, or adapt to different port designs.
2. N to SMA Adapter: Converts N to SMA interface for precision RF equipment and test applications.
3. N to BNC Adapter: The N connector is capable for adapting BNC equipment such as test instruments and video transmission equipment.
4. N to TNC Adapter: The N connector is capable for TNC connecting systems such as military and industrial wireless equipment.

How to Install and Maintain N Connector?

Installation and Maintenance Recommendations

1. Clean the inside of the N connector with compressed air or a dry cloth to prevent dust or dirt from affecting the signal quality.
2.  Ensure the cable is oriented correctly with the N connector to avoid damaging the connector by forcing it in.
3. Tighten the N connector threads to the proper torque to avoid damage from over tightening.
4. Test the connection and check the signal transmission quality using a network analyzer.

Care and Maintenance

1. Regularly check the condition of the N connector to prevent oxidation or looseness that may cause signal degradation.
2. Use a waterproof case, especially in outdoor environments to minimize the effects of moisture and dust.
3. Avoid bending the cable too much to ensure the stability of N connector signal transmission.

Selecting the Right N Connector to Enhance Device Performance

Choosing the right N connector directly affects the signal quality and durability of your equipment. Selection recommendations are as follows.

• Selection of Frequency Range

The frequency range of the N connector is selected according to the application requirements. For instance DC-11 GHz for the standard version and up to 18 GHz for the high specification version.

• Selection of Impedance Matching

Most applications choose the 50 ohm N connector to ensure compatibility with RF equipment and to minimize signal loss. While the 75 ohm version of the N connector is suitable for some broadcast and CATV systems.

• Waterproofing and Weatherproofing Options

For outdoor applications such as base stations or antenna systems, it is recommended to choose an N connector with an IP67 waterproof rating to ensure stable operation in inclement weather. Some N connectors are specially sealed to withstand high temperature, high humidity, or corrosive environments.

• Material Selection

The center pin material is usually gold plated or silver plated to provide better electrical conductivity and oxidation resistance to extend the service life. While the housing material is recommended to be stainless steel or nickel plated brass to improve the durability and mechanical strength of the N connector.

The Advantages and Features of the N Connector Provided by Huang Liang Technologies

1. Precision Manufacturing: Low loss and high precision to ensure the best signal transmission.
2. High Environmental Resistance: IP67 waterproof and dustproof design, suitable for harsh environments.
3. Various Types: To meet different RF and equipment application requirements.
4. Customization: N connector is customized to meet customer's specific needs.

Conclusion

The N connector is used in a wide range of RF and microwave communications applications. Its low loss, high stability and durability make it ideal for use in a wide range of wireless equipment. Whether used for commercial communications, military applications, or laboratory test equipment, the N connector's superior performance ensures reliable signal transmission.

Choosing the right N connector for your requires considering the factors such as frequency range, impedance matching, power handling capability, and ensuring proper installation and maintenance to extend service life and maintain optimal performance. Especially with the development of 5G, satellite communication and high frequency radar technology, high quality connectors will be the key components of future communication equipment.

As a professional RF microwave connector manufacturer, Huang Liang Technologies provides a wide range of high quality products and technical support. If you have further requirements, please feel free to contact us for more information!