rfmeasurement:ringresonatormethod
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rfmeasurement:ringresonatormethod [2021/10/20 23:40] – [Measurement] neilhao | rfmeasurement:ringresonatormethod [2023/02/11 17:30] (current) – external edit 127.0.0.1 | ||
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When Er = 1, the resonate frequency points can be calculated by following equation: | When Er = 1, the resonate frequency points can be calculated by following equation: | ||
- | {{ : | + | {{: |
Thus, | Thus, | ||
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|n=6 |Fo(6)=14.32129576 GHz| | |n=6 |Fo(6)=14.32129576 GHz| | ||
+ | When Er = 9.8, the simulated resonate frequency points: | ||
+ | {{ : | ||
===== Measurement ===== | ===== Measurement ===== | ||
{{ : | {{ : | ||
- | Six peaks of S21 were measured within the frequency from 0Hz to 6GHz: | + | Six peaks of S21 were measured within the frequency from 300KHz |
{{ : | {{ : | ||
Thus for Fn with n=1…6, | Thus for Fn with n=1…6, | ||
Line 61: | Line 62: | ||
Finally, the effective dielectric constant and dielectric constant can be calculated by using above two equations: | Finally, the effective dielectric constant and dielectric constant can be calculated by using above two equations: | ||
{{ : | {{ : | ||
- | The average dielectric constant within the frequency from 1GHz to 6GHz is 9.42. | + | We could conclude that this substrate has stable dielectric constant (Er) over wide frequency range. |
===== Reference ===== | ===== Reference ===== | ||
+ | [1] Neil Hao. The Considerations of Antenna Design for IOT and Wearable Devices. Retrieved Oct 21, 2021, from https:// | ||
+ | |||
+ | [2] Measuring the dielectric constant 𝜺𝒓 of Teflon, Polyester, FR4, G10, or FR4 with an RF generator and a good bolometer. Retrieved Oct 21, 2021, from https:// | ||
rfmeasurement/ringresonatormethod.1634773209.txt.gz · Last modified: 2023/02/11 17:30 (external edit)