sandeepsreeman
Member level 1
![Member level 1](/styles/images/ranks/dlevel1.gif)
when we design a bandpass filter either interdigital or combline or hairpin using tapped line feed input...since the tapped feed is 50 ohm and resonator impedance is greater than 50 ohm so there is a mismatch in impedance .....whether we can make the resonator impedance also equal to 50 ohm or not????? i refered to text book of lancaster and hong and i have the examples also why always the resonator impedance is greater than 50 ohm??????