A Compact High-Pass Filter Using Hybrid Microstrip/Nonuniform CPW with Dual-Mode Resonant Response

Figure 2

Dual-mode resonant frequency ratio of nonuniform CPW within the high-pass range for different parameters and dimensions (unit: mm). (a) varies against variable , (b) varies against variable , (c) varies against variable , and (d) varies against variable .

(a)

(b)

(c)

(d)