Antenna measurement with spectrum analyzer

[Rimvis123]

Hello,
I have SIGLENT SVA 1075X spectrum& Vector Network analyzer and I measured some antennas. I measured SWR, Return loss and used smith chart to see impedances and with this information I wanted to tune antennas to work perfectly in 868Mhz with my board. But is SWR same as VSWR? Because I got 1.07 SWR, but when I google if its good or not internet shows me only VSWR table, so is 1.07 SWR good?

 

[FvM]

The thread title is already confusing. You talking about VNA measurements, it's irrelevant that instrument has additional SA functionality.

SWR = standing wave ratio
VSWR = voltage standing wave ratio
The terms can be used as sinonyms in the given context.

 

[G4BCH]

is 1.07 SWR good?

For an antenna, yes very good, it is almost 30dB return loss, many 50ohm terminations are not as good.

 

[Rimvis123]

So I can measure only SWR and using VSWR vs return loss table check if my antenna is good? But why then people measures VSWR using spectrum analyzer like mine with VSWR bridge, when they can straight measure SWR? I'm new with antenna measurements, so sorry for my bad questions.

 

[G4BCH]

The terms SWR & VSWR are used interchangeably.