Bandpass Filters - J and K inverters

[elektr0]

Hi guys,

bandpass filters consist of alternating series and parallel resonators.
To avoid one type of resonator in microwave realization of bandpass filters, J and K inverters are used instead.

In this sence:
K inverters replace parallel resonators and are used with series res.
J inverters replace series resonators and are used with parallel res.


What about a side coupled microstrip bandpass filter:

e.g. **broken link removed**

Is it halfwave SERIES or PARALLEL resonators with each quarterwave coupled line section as K-INV. or J-INV. ???

Thank you very much for your help.

-e

 

[elektr0]

Although it looks different, it seems: filters like

**broken link removed**

consist of halfwave parallel resonators with J inverters.

Comments are still helpful...