<p>A band balanced filter is disclosed. The band balanced filter includes an input port through which an unbalanced signal is input, a band pass filter (BPF) passing a signal at a certain band, a Balun converting the unbalanced signal into a balanced signal, and a first output port and a second output port outputting the balanced signal. The BPF and the Balun have structures in which a plurality of layers are laminated. Circuits are laminated so that a small sized band balanced filter can be designed. Since a fundamental resonant frequency and a first harmonic frequency of a resonator is very large, a band balanced filter of a wide pass band having a wide upper stopband property can be manufactured.</p>
