High selective SIW bandpass filter with flexible bandwidth and transmission zero for 5G application.

Govind Kumar Mishra, Hemendra Kumar Pandey, Nagendra Prasad Pathak

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In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Govind Kumar MishraElectronics and Communication Engineering Department, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.

Hemendra Kumar PandeyDepartment of Atomic Energy, Homi Bhabha National Institute, VEC Center, Kolkata, 700064, India. hkpandey@vecc.gov.in.

Nagendra Prasad PathakElectronics and Communication Engineering Department, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India. nagendra.pathak@ece.iitr.ac.in.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This paper presents a novel design of an electric coupling structure for a substrate-integrated waveguide (SIW) bandpass filter, which exhibits flexible characteristics, sharp roll-off, and high out-of-band rejection, making it suitable for 5G applications. The filter structure is designed with a rectangular slot with a metallic cylindrical via and a narrow propagating path. The proposed design creates a transmission zero (TZ) and shows flexibility in terms of TZ and bandwidth. This structure can be used for both inline and cross-line SIW topologies. Two filters are simulated and fabricated to validate the design. The first filter is designed at 27.12 GHz frequency with 4.98% fractional bandwidth (FBW) and one TZ at a higher stopband using an inline filter topology. The second filter is centered at 27.46 GHz frequency and 4.11% FBW with two TZ at both sides of the passband in crossline topology.

Indexed as

Bandpass filter (BPF)Coupling matrixElectric couplingHigher-mode filterSingle-layer filterSubstrate integrated waveguide (SIW)Transmission zero (TZ)

Identifiers

PMID41720829

DOI10.1038/s41598-025-34655-3

PMCPMC13009146

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.