Reconfigurable Ring Filter with Controllable Frequency Response

Figure 4

Frequency responses for three different positions of transmission zeros, 𝑓_tz𝑟, and capacitor, 𝐶_𝑟, is automatically calculated using the synthesis: (a) 𝑆₁₂ and (b) 𝑆₁₁.

(a)

(b)