Bandwidth Reconfigurable Metamaterial Arrays

Figure 20

MTM array bandwidth reconfiguration by varying the loads at the termination of the open stub. For the VSWR response to the left stub it is simply left open, implying SW1 is open and 𝐶₂/𝐿₂ are off (unconfigured case). The other parameters: 𝑍_Feed=100Ω, 𝑍₀=𝑍_Sub=𝑍_Sup=188.5Ω, 𝐿_dipole=2.2nH, 𝐶_coupling=2.3pF, ℎ_sup=60^∘,ℎ_sub=90^∘, characteristic impedance of 𝑍_OC=11Ω, 𝑙_oc=87^∘, characteristic impedance of 𝑍_SC=312Ω, 𝑙_SC=58^∘ with all electrical lengths given at 2.5 GHz.

(a)

(b)