Switchable Broadband-to-Tunable Narrowband Magnetic Probe for Near-Field Measurements

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dc.contributor.authorAlmtrod, Abdalghfor Abdalghfar A
dc.contributor.authorKubík, Zdeněk
dc.date.accessioned2023-01-23T11:00:21Z
dc.date.available2023-01-23T11:00:21Z
dc.date.issued2022
dc.description.abstract-translatedThis paper presents a printed magnetic probe that can switch from broadband to tunable narrowband for near-field measurement. In the early design stage, we created a printed loop gap resonator as a magnetic reference sensor for the pre-compliance test in a band up to 6 GHz. Consequently, the results showed a good response in terms of the S11 and S21 parameters of the proposed probe compared with the commercial magnetic sensor XF-R 3-1. The source noise might spread among different frequency bands, making the broadband magnetic probe the closest choice for estimating the magnetic field in the near-field region. Unfortunately, broadband magnetic probes have lower sensitivity than narrowband ones. One of the solutions to get high sensitivity is to connect the LNA to the output of the passive magnetic sensor. This work proposes a novel method to solve this issue using a PIN diode to change the broadband status into a high sensitivity narrowband status and then tune this narrowband across the most critical applications such as 3.5 GHz, 3.75 GHz, 4.8 GHz, and 5.2 GHz with the help of a varactor diode. Compared to the broadband status, an improvement of more than 10 dB has been obtained across all these wireless bands. Furthermore, the proposed structure’s isolation between the electrical and magnetic fields is about 13 dB.en
dc.format19 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationALMTROD, AAA. KUBÍK, Z. Switchable Broadband-to-Tunable Narrowband Magnetic Probe for Near-Field Measurements. SENSORS, 2022, roč. 22, č. 19, s. 1-19. ISSN: 1424-8220cs
dc.identifier.document-number867283600001
dc.identifier.doi10.3390/s22197601
dc.identifier.issn1424-8220
dc.identifier.obd43937717
dc.identifier.uri2-s2.0-85139919695
dc.identifier.urihttp://hdl.handle.net/11025/51046
dc.language.isoenen
dc.project.IDEF18_069/0009855/Elektrotechnické technologie s vysokým podílem vestavěné inteligencecs
dc.project.IDSGS-2021-005/Výzkum, vývoj a implementace moderních elektronických a informačních systémůcs
dc.publisherMDPIen
dc.relation.ispartofseriesSENSORSen
dc.rights© authorsen
dc.rights.accessopenAccessen
dc.subject.translatedbroadbanden
dc.subject.translatedEMCen
dc.subject.translatedLC equivalent circuiten
dc.subject.translatedLGR magnetic probeen
dc.subject.translatednarrowbanden
dc.subject.translatedPIN diodeen
dc.subject.translatedvaractor diodeen
dc.titleSwitchable Broadband-to-Tunable Narrowband Magnetic Probe for Near-Field Measurementsen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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