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| Date | 2026-02-24 13:59 -0500 |
|---|---|
| Subject | Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application |
| Newsgroups | sci.electronics.design |
| References | <n05sp5Fkj9bU4@mid.individual.net> <9sjrpkhhiq3k4rnatoddi9s4fgq4bgu4eu@4ax.com> |
| From | bitrex <user@example.net> |
| Message-ID | <699df504$0$23$882e4bbb@reader.netnews.com> (permalink) |
On 2/24/2026 11:23 AM, john larkin wrote: > On Tue, 24 Feb 2026 16:00:53 +0100, "pez.-" <pez.usenet@gmail.com> > wrote: > >> "A Conceptual Model for the Reflection Measurements of a Vector Network >> Analyzer System and its Practical Application" - Abstract - "We present >> the gradual building of our conceptual model for the reflection >> measurements of a VNA Vector Network Analyzer System. In this way, we >> reveal the fundamental idea behind this kind of measurements and prepare >> the studier for a deeper comprehension of this subject. Moreover, since >> this abstract model is exclusively based on technical specifications >> supplied by the manufacturers of system components, it is directly >> applicable in practice. To demonstrate this fact, we use a specific VNA >> System to compute and draw both the frequency dependent systematic error >> parameters of it and of the reflection coefficient and input impedance >> of a particular antenna we constructed and measured by using it." - >> Nikolitsa I. Yannopoulou and Petros E. Zimourtopoulos, Antennas Research >> Group, Austria, EU, www.op4.eu - FunkTechnikPlus # Journal, No 39, >> Saturday 31 January 2026, Year 13, pp 11-45 >> >> DOWNLOAD PAPER PDF: >> https://www.ftpj.otoiser.org/papers/392AConceptualModelForTheReflectionMeasurementsOfAVectorNetworkAnalyzerSystemAndItsPracticalApplication.pdf >> DOWNLOAD ISSUE PDF: >> https://www.ftpj.otoiser.org/issues/html/ftpjissue39lo7532exportia1.htm >> ALL ISSUES: >> https://www.ftpj.otoiser.org/issues/index.htm >> FUNKTECHNIKPLUS # JOURNAL: >> https://www.ftpj.otoiser.org/ > > We got a 6 GHz nanoVNA from Amazon recently. $300. > > It seemed to be pretty simple. > > > > John Larkin > Highland Tech Glen Canyon Design Center > Lunatic Fringe Electronics I have the 1.5 GHz SEESI nanoVNA clone which seems OK for crude log mag measurements up to its claimed bandwidth but the phase response sucks much above 1 GHz: <https://imgur.com/a/zNY4V2q> This the unwrapped phase of S21 with about 500p of port extension, and a 100mm length of microstrip on FR4 as the DUT.
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A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application "pez.-" <pez.usenet@gmail.com> - 2026-02-24 16:00 +0100
Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application Jan Panteltje <alien@comet.invalid> - 2026-02-24 15:59 +0000
Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application john larkin <jl@glen--canyon.com> - 2026-02-24 08:23 -0800
Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application bitrex <user@example.net> - 2026-02-24 13:15 -0500
Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application john larkin <jl@glen--canyon.com> - 2026-02-24 19:48 -0800
Re: A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application bitrex <user@example.net> - 2026-02-24 13:59 -0500
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