A Quasi-Elliptic Bandpass Filter-Integrated Single-Pole Double-Throw Switch
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AbstractThis paper proposes a quasi-elliptic bandpass filter-integrated single-pole double-throw (SPDT) switch. The series-parallel configuration of p-i-n diodes embedded into the impedance matching circuit is proposed to combine two quasi-elliptic response bandpass filters to constitute the proposed SPDT switch. To validate our design approach, a proposed quasi-elliptic bandpass filter-integrated SPDT switch is designed and fabricated with a central frequency of 1.25 GHz and a 3 dB fractional bandwidth of 16 %. Low insertion loss in the on state and good isolation in the off state are achieved. The switch size including bias circuits but excluding feeding lines is 0.447λ
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2010 ◽
Vol 4
(1)
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pp. 99
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2019 ◽
Vol 4
(7)
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pp. 28-30
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2021 ◽
Vol 36
(7)
◽
pp. 865-871
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