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The main electric property of coaxial cable assembly-Insertion loss (attenuation)

Aug 07, 2018

The main electric property of coaxial cable assembly-Insertion loss (attenuation)


Insertion loss: This is the connector loss in the frequency range of interest. The loss is usually 0.1 and 0.3 decibels. Determining how critical a watt (or fractional watt) is in most designs, even if such a small loss must be minimized and included in the link loss budget. It is especially important for low noise front-end when signal strength and signal-to-noise ratio are low.


Operation cycles: How many connection/disconnection cycles can be sustained and still meet their specifications? This is usually in 500 or 1000 cycles. Screw connectors, the tightening torque specified by suppliers is an important factor in maintaining performance and reliability.


Power: power processing is determined by two resistance losses (heating) and insulation breakdown. Although even decades of design is mainly a preprocessing of dozens of watts, today's designers focus on low power devices such as mobile phones, micro cellular and milli cellular base stations, video interfaces, RF and gadgets. These are in the sub 1W range, so connectors can be much smaller and their rated power is smaller.