A method of designing a band-pass filter (300, 400, 600), characterized in comprising the following steps: establishing a baseline filter design meeting first design criteria, the baseline filter design including a plurality of series surface acoustic wave resonators (X1, X3, X5, X6, X8, and X10) and a plurality of shunt surface acoustic wave resonators (X2, X4, X7, and X9), each surface acoustic wave resonator having a respective resonant frequency; calculating a performance metric related to an input impedance of the baseline filter design over a pass band, wherein the performance metric is either a) a diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on a complex impedance plane, or b) a distance between input impedances at the edges of the pass band plotted on a complex impedance plane; establishing one or more alternate filter designs, each of the one or more alternative filter designs derived from the baseline filter design by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators (X1, X3, X5, X6, X8, and X10) and/or two or more of the plurality of shunt surface acoustic wave resonators (X2, X4, X7, and X9); calculating a respective performance metric related to an input impedance of each of the one or more alternative filter design over the pass band; and selecting from the baseline filter design and the one or more alternate filter designs a) a final filter design with the smallest diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on the complex impedance plane, or b) a final filter design with the smallest distance between input impedance at the edges of the pass band plotted on the complex impedance plane. establishing a baseline filter design meeting first design criteria, the baseline filter design including a plurality of series surface acoustic wave resonators (X1, X3, X5, X6, X8, and X10) and a plurality of shunt surface acoustic wave resonators (X2, X4, X7, and X9), each surface acoustic wave resonator having a respective resonant frequency; calculating a performance metric related to an input impedance of the baseline filter design over a pass band, wherein the performance metric is either a) a diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on a complex impedance plane, or b) a distance between input impedances at the edges of the pass band plotted on a complex impedance plane; a) a diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on a complex impedance plane, or b) a distance between input impedances at the edges of the pass band plotted on a complex impedance plane; establishing one or more alternate filter designs, each of the one or more alternative filter designs derived from the baseline filter design by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators (X1, X3, X5, X6, X8, and X10) and/or two or more of the plurality of shunt surface acoustic wave resonators (X2, X4, X7, and X9); calculating a respective performance metric related to an input impedance of each of the one or more alternative filter design over the pass band; and selecting from the baseline filter design and the one or more alternate filter designs a) a final filter design with the smallest diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on the complex impedance plane, or b) a final filter design with the smallest distance between input impedance at the edges of the pass band plotted on the complex impedance plane. a) a final filter design with the smallest diameter of a minimum-size circle circumscribing the input impedance over the pass band plotted on the complex impedance plane, or b) a final filter design with the smallest distance between input impedance at the edges of the pass band plotted on the complex impedance plane.