Coplanar Stripline Single Pole Single Throw Switch

Holda, Madeline; Ponchak, George E.; Tentzeris, E.M.

doi:10.1109/lmwt.2023.3240658

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…Three balanced microstrip-to-CPS transformations with excellent pure CM suppression and wideband DM filtering capabilities are presented in 13,14,15 and a miniaturized type of planar plasmonic waveguides with ultra-wideband filtering performance has been reported in 16 . The PIN diode modeling for re-configurable filters 17,18 and antenna 19,20 are integrated to form a multi-band operating filter. A compact single/multi-band coupled-multiline filtering unit has been proposed to design RF filtering devices 21 .…”

Section: Introductionmentioning

confidence: 99%

Design of Coplanar Stripline Bandpass Filter with Re-configurable Filter Switch

Basu,

Kho,

Nandi

2024

Preprint

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This paper has designed a bandpass filter using a coplanar stripline stub (CPS) resonator consisting of open and short-ended strip lines connected to the PIN Diode switches. The use of spurline stub resonators inside CPS results in bandpass and bandstop filters, depending on the PIN diode switch configurations. The work presents a novel circuit architecture aimed at reducing parasitic resonance of the spurline resonators and acquire the necessary series stub characteristics. The proposed filter resonates at 6.9-9 GHz and 1.7-4.7 GHz, and 8.4 GHz when the PIN diodes are forward and reverse-biased, respectively. It also resonates at 1-2.1 GHz, 4.8-5.3 GHz, and 6.9-9 GHz when one diode is reverse-biased, and the other is connected in forward bias. An insertion loss below -0.55 dB and a return loss less than 10dB have been obtained during simulation and measurement. The designed filter can find different applications for the 1.8 GHz GSM band, 2.4/5.8GHz (WLAN), 3.6 GHz (WiMAX), Long Term Evolution (LTE), and WIFI. The filter can be used in various multi-frequency systems owing to its compact size. The measured and simulated findings of the proposed CPS spurline stub resonator wideband bandpass filters are substantially consistent.

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