How would you measure that kind of return loss accurately?
Peter
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On 8/4/2019 9:50 PM, Dr. David Kirkby from Kirkby Microwave Ltd wrote:
On Mon, 5 Aug 2019 at 00:32, tuckvk3cca <tuckvk3cca@...> wrote:
That 1.005 swr is up at the 5GHz end I presume. At 500MHz you can get
70dB. I have seen some people complain that some such loads have a bump
at 1GHz, origin unknown.Sent from my Samsung Galaxy smartphone.
Why do you assume that you can get 70 dB at 500 MHz? I think you can be
pretty sure if Keysight believed they could get a 70 dB return loss up to
500 MHz, it would be in the data sheet.
I very much doubt NPL, NIST, METAS or any other national standards
laboratory could measure 70 dB return loss.
Dave.
