Material-loaded high q-factor slot resonator and measurement of relative permittivity

A. Abdel-Rahman, M. S. Kheir, A. K. Verma, A. Omar

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We introduce a new slot resonator in the ground plane of a microstrip that is loaded with a parallel plate capacitor. The loaded slot has a 73% reduced length. Its unloaded Q-factor is 98 which is 91% higher than that of an ordinary slot. It is suitable to reject the narrow band unwanted signal. The proposed high Q-factor compact slot resonator also suppresses the undesired spurious high frequency response of the unloaded slot resonator. The structure is further used to determine the unknown dielectric constant of a sheet material with 0.04 variation in εr.

Original languageEnglish
Pages (from-to)67-76
Number of pages10
JournalProgress In Electromagnetics Research C
Publication statusPublished - 2010
Externally publishedYes


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