In this paper, we present a feasibility study of a small-sized film bulk acoustic wave resonator (FBAR) bandpass filter (BPF) that covers the digital dividend band (698-862 MHz) for Long Term Evolution (LTE) services. The FBAR-based bandpass filter of 590×340 m2 is much smaller than the conventional filters of cavity, interdigital or discrete component configurations. This feasibility study will be very useful for realizing even more advanced LTE BPFs for wideband communications applications below 1 GHz.