Are the parameters Q0xf0, temperature coefficient of frequency and temperature coefficient of permittivity fundamental material constants?
Jacob, Mohan V. (2005) Are the parameters Q0xf0, temperature coefficient of frequency and temperature coefficient of permittivity fundamental material constants? Proceedings of IEEE TENCON Conference 2005. Tencon 2005 - 2005 IEEE Region 10 Conference , 21 - 24 November 2005, Melbourne, VIC, Australia , pp. 1-5.
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Microwave characterisation of dielectric materials is vital to implement the material in communication devices and circuits. The microwave characterisation parameters are the dielectric constant, loss tangent, Q0xf0 temperature coefficient of frequency and temperature coefficient of permittivity. From several experiments on different dielectric materials, it has been concluded that the concept of using Q0xf0 and temperature coefficient of frequency, as a material property was wrong since it is not reflecting on a material's fundamental behaviour. On the other hand, it has been interesting to note that the temperature coefficient of permittivity of a material is a constant irrespective of the measurement technique and hence it is a material parameter. The studies on temperature dependent permittivity will reveal the knack of a material to operate as a frequency stable circuit or device.
|Item Type:||Conference Item (Refereed Research Paper - E1)|
|Keywords:||dielectric characterisation; dielectric materials; dielectric properties; loss tangent; permittivity|
|FoR Codes:||09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 100%|
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 60%|
86 MANUFACTURING > 8617 Communication Equipment > 861799 Communication Equipment not elsewhere classified @ 40%
|Deposited On:||11 Jan 2010 15:51|
|Last Modified:||12 Feb 2011 03:08|
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