by Angela
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If you are a newcomer in the RF industry, it must be difficult to distinguish VSWR and return loss. The following is a comparison table of VSWR and return loss.
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What is VSWR
VSWR ( (Voltage Standing Wave Ratio)is defined as the ratio of the maximum voltage to the minimum voltage in standing wave pattern along the length of a transmission line structure. It varies from 1 to (plus) infinity and is always positive. Unless you have a piece of slotted line-test equipment this is a hard definition to use, especially since the concept of voltage in a microwave structure has many interpretations.
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What is Return loss (RL)
Return loss (RL) is the ratio of the reflected power to the incident power, in decibels (dB).
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The Comparison table of VSWR and Return Loss
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With options like SMA, N-Type, and 2.92mm available, picking the right one feels complex and mistakes can be costly. SMA is common up to 18 GHz, N-Type is larger and robust for power/outdoor use up to 11-18 GHz, while 2.92mm offers precision performance up to 40 GHz and is mechanically compatible with SMA. Selecting the
Introduction to VSWR Voltage Standing Wave Ratio (VSWR) is a critical parameter in RF (Radio Frequency) systems, indicating how effectively power is transferred from a source to a load. It measures the ratio of the maximum to the minimum voltage in a standing wave formed by reflected and transmitted signals.
SMA Connectors/Adapters and cable assembly, are widely used for testing. We have the stainless steel version and the copper with gold plating version.
