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Progress In Electromagnetics Research Letters
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A PLANAR D-CRLH AND ITS APPLICATION TO BANDSTOP FILTER AND LEAKY-WAVE ANTENNA

By C.-Y. Liu, Q.-X. Chu, and J.-Q. Huang

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Abstract:
A planar dual-composite right/left-handed (D-CRLH) transmission line (TL) structure is proposed. The characteristics such as dispersion relation and frequency response of this D-CRLH TL are analyzed by equivalent circuit analysis, Bloch-Floquet theory, full wave simulation and experiment. To demonstrate applications of the proposed structure, both bandstop filter and leaky-wave antenna are designed and implemented by the conventional print circuit board technology. The fabricated filter has a broad application because of its planar structure, small size and tunable stopband. The measured results also suggest that the leaky-wave antenna based on the D-CRLH concept can offer a scanning angle covering almost backfire-to-endfire directions.

Citation:
C.-Y. Liu, Q.-X. Chu, and J.-Q. Huang, "A Planar D-CRLH and its Application to Bandstop Filter and Leaky-Wave Antenna," Progress In Electromagnetics Research Letters, Vol. 19, 93-102, 2010.
doi:10.2528/PIERL10101701

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