Aplaner millimetre-wave dual-band bandpass filterwithmultitransmission zeros is proposed for 5Gapplication. This filter includes\ntwo dual-mode open-loop resonators. The U-shape nonresonating node is employed to generate an extra coupling path. Finally, a\ndual-band bandpass filter with five transmission zeros is obtained.The filter is fabricated and measured. Good agreement between\nsimulation and measurement is obtained.
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