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2022/12/10
5G Solutions | Low PIM Connectors: 7/16, N-Type

Essential Requirement for 5G Development: Low PIM

5G is currently most popular word in the wireless infrastructure. 5G features high speeds, low latency and reliability that can be transformed to enable the transportation infrastructure, automation across urban and other industries.

 

In the meantime, due to the new frequency use for the modern base stations, the use of more sensitive receivers and higher transmitter power levels, PIM issues start to be a potential problem for cellular network services. 

 

Chin Nan provides low PIM RF connectors, including N-type, TNC, SMA, MCX, SMP, SMPM and 7/16 connector series, as well as cable assemblies and adapters. Here we are going to introduce our low PIM products lines: 7/16 and N-type, which are the two most common interfaces used in low PIM application.  

 

Table Of Content

Why do I need low PIM connectors?

How to reduce PIM

Low PIM connectors

7/16 DIN

Low PIM N-Type

Summary

 
 

Why Do I Need Low PIM Connectors?

PIM is a significant issue for cellular network operators, such as 4G and 5G LTE, they would like to maximize their networks' reliability, data transmission rate, capacity and revenue of investment.
 
It is important to have deep understanding of the issue and stick to the complete low PIM solutions. Let’s take low PIM antennas for example. Low PIM RF splitters and relevant cables, connectors and other passive component help you avoid costly requirements of upgrading relevant components and ensure the PIM won't interrupt the signal transmit.
 

 

How To Reduce PIM

In general sense, nonlinear mixing causes the generation of PIM, such as connectors, cables and antenna in the passive device.
 
The more nonlinearity exists, the more severe effects cause PIM. Chin Nan designs and improves the connectors through lowering and eliminating the cause of PIM as follows.
 

1. Poor contact junction

Lack of techniques, manufacturing defects resulting in loosely done connectors, and cold solder joint create PIM.

 
With the experienced design and development ability, Chin Nan has a strict manufacturing process to control the tolerances when machining and utilize the inspection tools to measure the dimensions from the machining to shipment to decrease the possibility of damaged connectors, cold solder or cracked solder joint.
 
Our design and products are made compliant to international standard interface. We also provide our employees proper training and establish complete assembly process. These allow Chin Nan to reduce defective in production.
 

2. Ferromagnetic materials

The use of ferromagnetic materials, such as nickel or steel, generates PIM resulting from the nonlinear voltage to the current, especially at the high power level.
 
Therefore, Chin Nan uses brass and copper alloys, which is regarded as linear materials, to make low PIM connectors.
 
For plating, we apply non-magnetic plating like sliver or white bronze specifically to reduce contact junction resistance. The point is to have proper thickness of plating for the smooth current travel by reducing the effects from the surface depth at the same time.
 

3. Contamination

The problems of age, oxidation, corrosion, dirt and rust among others, and any kind of interruption on the passive devices are other major factors of PIM. Chin Nan applies the complete process including careful cleaning, proper assembly, good environmental protection and proper connector torque to minimize PIM.
 

 

Low PIM Connectors

Low PIM_716 DIN

7/16 DIN

7/16 connectors are high performance, robust and stable connectors. They are designed for minimize PIM specifically.
 
7/16 features high frequency, low-intermodulation and low return loss, high power handing. 7/16 is designed with waterproof and anti-vibration specifications, so it is able to reduce signal interference from PIM and suitable for outdoor applications, especially for base stations, antenna and wireless communication systems.
 

 

Low PIM_N-Type

Low PIM N-Type

Low PIM N-type series feature low VSWR, low insertion loss, high power handling, rugged construction and the familiar interface. They provide ideal low PIM performance.
 
Low PIM N-type connectors are designed with low-loss construction and waterproof protection. They are designed to adapt to applications that require weather resistance and high data transfer rates, such as Wireless/ Wi-Fi/ GSM base stations.
 

 

Summary

Chin Nan's low PIM connectors provide reliable PIM performance of less -160 dB. We have the capability to slove your PIM issues and develop a strict manufacturing process to control the machining dimensions and tolerance.
 
Chin Nan not only follows the international standard interface, we also manufacture with well-monitored production, quality maintenance, protection and suggested torque value to reach the best performance.
 
Chin Nan will be your best design partner for developing your 5G device, especially under the fundamental frequency requirements for the modern base stations, sensitive receivers and higher transmission power levels for 5G system.
 
If you need more detailed information such as 3D model and test reports, please visit this page on our website — Low PIM connectors.

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