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Four important network parameters of network transformers

Views : 99
Author : CETUS INTL
Update time : 2023-09-12 13:47:08
Sometimes we not only understand the inductance, withstand voltage, resistance, capacitance, and other parameters of basic network transformer products. Its network parameters are also very important parameters for measuring network transformer products.

network transformers

The first one: Return loss of network transformer
What is the return loss of a network transformer? Signal transmitted from port A to port B. After receiving the signal at port B. 
The attenuation produced when returning to port A through port B.
Generally speaking, the return loss of a 100M network transformer should be less than -16dB. To ensure its good performance in high-speed network transmission. If the return loss is too high. 
This will lead to problems such as signal attenuation, increased bit error rate, and shortened transmission distance. This in turn affects the stability and reliability of the network.
In the design and selection process of network transformers. Return loss is a very important performance indicator. Generally speaking, we can understand the return loss and other performance parameters of the network transformer through the device's data sheet.
Or conduct practical tests to understand the return loss and other performance parameters of network transformers. To select the most suitable network transformer to achieve high-speed data transmission.

Second: Insertion loss of network transformer
What is the insertion loss of a network transformer? 
When the signal passes through the network transformer. The signal power lost as a percentage of the transmitted power. It is an important indicator that can measure network capabilities. Usually measured in decibels (dB).
Factors such as capacitance, inductance, and mutual resistance will affect the insertion loss of the network transformer. Its value usually depends on factors such as the structure, material and process of the transformer. Generally speaking, the smaller the insertion loss, the stronger the transmission capability of the network transformer. The signal penetration capability is also better.
Measure or calculate insertion loss through experimental testing or simulation. In the design and selection process of network transformers. Insertion loss is a very important performance indicator.
Insertion loss requires a comprehensive consideration of various factors. Such as compatibility, technical standards, transmission distance, transmission rate, etc. Choose a network transformer with suitable insertion loss. To ensure good transmission performance.

Third: CTK of network transformer
CTK of network transformer refers to AC magnetic reactive coupling. It is an important indicator in network transformers. CTK describes the signal coupling effect of the transformer. It is an important reference index to measure the transmission performance of transformer. 
Generally speaking, higher CTK indicators represent better signal coupling effects. Can support longer transmission distance and higher transmission rate.

Fourth, network transformer CMRR common mode rejection ratio
CMRR refers to common mode rejection ratio. Common-mode rejection ratio is an indicator used to evaluate the network transformer's ability to suppress common-mode signals. That is, in the two devices connected by the network transformer. 
The ratio between the electromagnetic noise produced by the common-mode part of a signal (the same signal) and the differential-mode part (the different signal). 
A higher CMRR index represents better common-mode noise suppression capabilities, which can improve the reliability of network operation while ensuring transmission quality.

To sum up, the IR insertion loss, RL return loss, CTK and CMRR of network transformers are all very important performance indicators of network transformers. Can help evaluate the signal transmission loss of network transformers. 
Signal coupling effect and anti-interference ability. During the design and selection process. These factors need to be comprehensively considered based on actual needs and application scenarios. Choose the most suitable network transformer to achieve high-speed and stable data transmission.