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Article: Researchers from Southeast University report details of new studies and findings in the area of microwaves, antennas and propagation.
- Article from:
- Electronics Newsweekly
- Article date:
- November 11, 2009
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"An open resonator system is designed and constructed for the accurate measurement of complex permittivity at Ka band. It is solved successfully for the first time in how to achieve the consistency of cavity lengths corresponding to different resonant frequencies over a broad band and how to determine the proper permittivity from multiple transcendental equation roots of one sample," scientists in Nanjing, People's Republic of China report.
"Many kinds of samples such as fused quartz, Teflon, quartz ceramic, MgF2 and MgAl2O4 are measured and the results are in good agreement with published data. The systematic error analysis shows that the relative standard ...