A Simple Microstrip Bandstop Filter Using Cross-Coupling Stubs

Figure 1

(a) Schematic diagram of the proposed bandstop filter. (b) Calculated frequency response of the |𝑆₂₁| with different 𝐶 and fixed 𝑍_𝑆 = 100 Ω. (c) Calculated frequency response of the |𝑆₂₁| with different 𝑍_𝑆 and fixed 𝐶 = 0.03 pF.

(a)

(b)

(c)