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Title: Design a tunable cavity resonator for complex permittivity measurement of low-loss material at L band
Authors: Calla, O P N
Mishra, Sanjeev Kumar
Bohra, Dinesh
Khandelwal, Nitin
Kalla, Paritosh
Sharma, Charu
Gathania, Neha
Bohra, Naveen
Shukla, Saurabh
Keywords: Cavity resonator
Complex permittivity
Dominant mode
Low-loss materials
Issue Date: Feb-2008
Publisher: CSIR
Abstract: The value of loss tangent (tanδ) of the low loss material is of the order of 10⁻⁴. There are different methods used to measure loss tangent as well as complex permittivity. Out of different methods, Cavity Resonator method is the best method for the measurement of complex permittivity of low loss materials i.e. teflon, duroid, polystyrene and stycast. In this present paper, a cylindrical cavity resonator is designed and fabricated in the frequency range 2.2-2.3 GHz and the complex permittivity of low loss material teflon using cavity resonator method has been measured.
Description: 134-138
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.46(02) [February 2008]

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