Figure 6 shows the D-CRLH TL topology of the series-shunt type.
According to the same design process in the CRLH TL topology, the component values of the D-CRLH TL can be obtained as
[22.] Caloz, C., "Dual composite right/left-handed (D-CRLH) transmission line metamaterial," IEEE Microwave and Wireless Components Letters, Vol.
Both structures have D-CRLH as shown in the dispersion relation depicted in Figs.
This proposed modeling approach paves the way to new compact-sized ring-shaped D-CRLH unit cells, e.g., the crescent-shaped D-CRLH unit cell shown in Fig.
The four cells have been implemented in five-unit D-CRLH TLs.