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In this letter a concept of a simple dual-band (DB) composite right/left-handed (CRLH) metamaterial is presented and discussed. This DB-CRLH concept is based on the combination of a conventional CRLH unit-cell with two conventional right-handed transmission-line sections. The equations required for analysis of such structure is derived and presented. The effect of the equivalent circuit model parameters on the dispersion diagram of the DB-CRLH unit-cell is investigated.
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Hashemi et al. (2012) studied this question.
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