Figure 1

(a) Conventional quarter-wavelength TL, (b) the separated crosshatched TL determined by TC (lA + lC + lA = λ/4) and (c) the equivalent π-shaped resonator with open stubs.

(a) Conventional quarter-wavelength TL, (b) the separated crosshatched TL determined by TC (lA + lC + lA = λ/4) and (c) the equivalent π-shaped resonator with open stubs.