Loss in %Reflection Coefficient VSWR Reduction using a matched attenuator (assuming a perfect 1:1 Attenuator) Attenuator (dB)Improved VSWR Definitions: VSWR (Voltage Standing Wave Ratio)is the measure of how efficiently RF power is transmitted and is expressed as a ratio of the maximum to minimum...
Definitions: VSWR (Voltage Standing Wave Ratio)is the measure of how efficiently RF power is transmitted and is expressed as a ratio of the maximum to minimum amplitude (or the voltage or current) of the corresponding field components appearing on a line that feeds an antenna. Return Lossis a...
Before I get into more on VSWR and specifically explaining return loss, I want to spend a moment explaining why poor VSWR and therefore poor return loss values matter. As an example, in one test with LoRaWAN connectivity, an antenna with poor VSWR ratings could not even connect to the LoRa...