An electric probe is used between two crossed coupled combline resonators i
n order to realize the required electric coupling for a six-pole elliptic f
unction filter This realization eliminates the need for resonators with lon
g posts, providing filter. compactness and offering a flexible and wide ran
ge of couplings. The measured frequency response of the lifter shows good a
greement with the theoretical analysis. (C) 1999 John Wiley & Sons, Inc.