A laminated
low pass filter including a
dielectric block having a plurality of laminated
dielectric layers, input and output electrodes and outer ground electrodes formed on outer side surfaces of the
dielectric block, so as to pass therethrough a
signal inputted to the outer input
electrode, only in a
low frequency band, and then to output the passed
signal to the outer output
electrode. The laminated
low pass filter also includes a
transmission line including a distributed constant element made of a strip line formed on a first one of the dielectric
layers, while being uniformly distributed with an
inductance and a
capacitance, the distributed constant element being connected between the input
electrode and the output electrode, and a
capacitor electrode structure having at least two
layers while being connected between the input electrode and the output electrode. The
capacitance electrode structure forms a
capacitance connected in parallel to the
transmission line. Since the laminated
low pass filter is simply implemented by use of the
transmission line and capacitors formed on the dielectric block having a multilayer structure, it can have a miniature size while exhibiting improved
insertion loss characteristics, as compared to conventional laminated low pass filters implemented by use of concentrated constant elements.