TY - JOUR
T1 - A 3-D isotropic left-handed metamaterial based on the rotated transmission-line matrix (TLM) scheme
AU - Zedler, Michael
AU - Caloz, Christophe
AU - Russer, Peter
PY - 2007/12
Y1 - 2007/12
N2 - A 3-D isotropic left-handed metamaterial based on the rotated transmission-line matrix (TLM) scheme is presented in this contribution. First, the discrete electrodynamics theory of the rotated TLM scheme is briefly revisited. The corresponding 3-D metamaterial is analyzed in terms of its dispersion relation, Bloch impedance, principal axes propagation, differential/common mode excitation, and composite right/left-handed response. A practical realization of this 3-D metamaterial, based on metalinsulatormetal capacitors and thin wires, is proposed and experimentally demonstrated. A simplified planarized implementation, preserving the same network topology, is then proposed with two alternative configurations. Parasitic effects resulting from planarization are analyzed and design guidelines are given to mitigate them. Finally, this structure is demonstrated by a full-wave simulation to exhibit the expected 3-D-isotropic left-handed behavior.
AB - A 3-D isotropic left-handed metamaterial based on the rotated transmission-line matrix (TLM) scheme is presented in this contribution. First, the discrete electrodynamics theory of the rotated TLM scheme is briefly revisited. The corresponding 3-D metamaterial is analyzed in terms of its dispersion relation, Bloch impedance, principal axes propagation, differential/common mode excitation, and composite right/left-handed response. A practical realization of this 3-D metamaterial, based on metalinsulatormetal capacitors and thin wires, is proposed and experimentally demonstrated. A simplified planarized implementation, preserving the same network topology, is then proposed with two alternative configurations. Parasitic effects resulting from planarization are analyzed and design guidelines are given to mitigate them. Finally, this structure is demonstrated by a full-wave simulation to exhibit the expected 3-D-isotropic left-handed behavior.
KW - 3-D
KW - Composite right-left-handed (CRLH)
KW - Isotropic
KW - Left-handed
KW - Metamaterial
KW - Negative refractive index (NRI)
KW - Transmission-line matrix (TLM)
UR - http://www.scopus.com/inward/record.url?scp=36949019954&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2007.909608
DO - 10.1109/TMTT.2007.909608
M3 - Article
AN - SCOPUS:36949019954
SN - 0018-9480
VL - 55
SP - 2930
EP - 2941
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 12
ER -