“…Furthermore, adopting the high-order modes of the SSPP unit cell is another effective method for achieving bandpass response [21,22]. In recent years, the balanced BPFs show advantage of intrinsic common mode (CM) noise rejection capability [23,24,25]. Hence, a few balanced BPFs implemented by the SSPP structure are reported to broaden its application in balanced components design [26,27,28,29,30,31].…”