Coplanar Waveguide UWB Bandpass Filter Using Defected Ground Structure and Interdigital Capacitor

Verma, Pratibha; Moyra, Tamasi; Sarkar, Dwipjoy; Bhowmik, Priyansha; Sen, Sarbani; Kumar, D. Rajesh

doi:10.1007/978-981-13-0224-4_44

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…The substrate-integrated wave technique was utilized in [10] to achieve dual/triple passbands. In [11], interdigital capacitors are used to achieve the desired bandpass behavior with an extended rejection band and it is also utilized in the design of a BPF to cover the ultra-wideband (UWB) frequency range from 3.1 to 10.6 GHz [12]. Two BPFs are introduced in [13, 14] based on the open-loop resonator technique for WLAN/WiMAX applications.…”

Section: Introductionmentioning

confidence: 99%

LPF/dual-BPF/UWB-BPF reconfiguration utilizing DGS resonators and lumped capacitors

Mohamed

Ali

Ibrahim

2022

Int. J. Microw. Wireless Technol.

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In this work, three successive filter models based on defected ground structure (DGS) techniques are designed, fabricated, and tested to be utilized for different wireless applications. The filters are printed on a RO5880 substrate of an overall size of 22 × 11 × 0.8 mm3. Three DGSs are etched from the ground plane to achieve the suggested band stop features for all frequencies above 10 GHz. The first model is a low-pass filter that succeeded to pass all frequencies below 10 GHz, the second model is a bandpass filter that operated at 4.5 and 9 GHz after using a pair of interdigital capacitors, and the third model covered all ultra-wideband frequency range when a pair of lumped capacitors is utilized instead of the interdigital capacitors. Good consistency between simulated and measured outcomes is achieved for each of the three filters confirming their suitability to be embedded in small-sized wireless devices.

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