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A novel metamaterial-based spiral transmission line structure is presents and demonstrated as a single-layer single-patch microstrip patch antenna excited by microstrip line feed with broadband up to 8% and weak direction. This structure is in essence a spiral composite right/left hand (CRLH) transmission line (TL) incorporating circle microstrip patch for the multi-staggered resonance frequencies of patch antenna controlled operation, by which the broadband of the microstrip patch antenna is achieved.
Metamaterials, 2008 International Workshop on
Date of Conference: 9-12 Nov. 2008