Optimisation of Hakki-Coleman dielectric resonators for precise microwave characterisation of low loss low permittivity dielectrics
Mazierska, Janina, McGrath, Jonathon, and Jacob, Mohan V. (2003) Optimisation of Hakki-Coleman dielectric resonators for precise microwave characterisation of low loss low permittivity dielectrics. In: Proceedings of APMC 2003, pp. 925-928. From: APMC 2003 Asia-Pacific Microwave Conference, 4-7 November 2003, Seoul, Korea.
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In several microwave applications, dielectric materials with small complex permittivity are needed and with precisely known values of εr, and tanδ. In this paper general uncertainty analyses of εr and tanδ measurements carried out using a Hakki-Coleman dielectric resonator are presented for varying parameters of tested dielectrics and uncertainties in the Qo-factor, geometrical factors and losses of the cavity. On the basis of performed analyses conclusions are drawn in respect to optimised construction of a Hakki-Coleman test fixture for accurate microwave characterisation of low loss and low permittivity rod shaped dielectric materials.
|Item Type:||Conference Item (Refereed Research Paper - E1)|
|Date Deposited:||24 Jun 2009 01:58|
|FoR Codes:||09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 100%|
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