I need more information of interdigital and combline filter.
Can anyone update next papers?
R. J. Wenzel, “Synthesis of Combline and Capacitively Loaded
Interdigital Bandpass Filters ofArbitary Bandwidth”,
IEEE Trans. MTT, vol. MTT-19,no. 8, pp. 678-686, Aug.1971.
Itzhak Shapir, Victor A. Sharir, Daniel G. Swanson,
"TEM Modeling of Parasitic Bandwidth Expansion in Combline Filters",
IEEE Trans. on MTT, Vol 47, No. 9. Sep.1999.