Low noise amplifier design for hidden wireless lan applications using band pass filter with geometric mean prototype element values

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dc.authorscopusid57204711269en_US
dc.contributor.authorDuman, M.
dc.date.accessioned2024-08-23T16:07:31Z
dc.date.available2024-08-23T16:07:31Z
dc.date.issued2024en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractDetection and perception problems may occur when the amplitude level of some signals that need to be received and detected is weak. Information that is requested to be kept confidential or not shared with other units is always available in the environment as wireless electromagnetic (EM) waves. Detection can only be made with the appropriate method. Thermal radiation emitted by objects that are intended to be hidden under clothing can also be given as an example. The signal level of these EM waves is very low. In this case, low noise amplifier (LNA) circuits are used to increase such values to a measurable level by network analyzer. In this study, a design with 17.19 dB gain for WLAN applications is made using BL011 LNA chip gathered from BeRex company with a 3rd order band pass filter (BPF) at 2.4 GHz center frequency, it has 200 MHz band width (BW) and 50 ohm characteristic impedance. An innovation has been introduced to design BPF as using the geometric mean prototype element values (PEV) by the help of geometric mean of 4 known techniques: Butterworth, Chebyshev (0.5 dB ripple), Bessel and Gauss (to 12 dB) normalized table values. According to the researches, the BPF circuit created by the geometric averaging method with the BL011 LNA chip has never been used to detect hidden EM signals in the WLAN band. Finally, the proposed BPF circuit is 2 in total, one at the input and one at the output; LNA circuit designed by using BL011 module and impedance matching circuit, a total of 3 consecutively connected and combined systems are formed. The proposed full system has the merits of compactness, good input reflection coefficient and good S21, gain characteristic. © 2024 Yildiz Technical University. All rights reserved.en_US
dc.identifier.doi10.14744/sigma.2022.00081
dc.identifier.endpage389en_US
dc.identifier.issn1304-7191
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85192299122en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage383en_US
dc.identifier.urihttps://doi.org/10.14744/sigma.2022.00081
dc.identifier.urihttps://hdl.handle.net/20.500.12684/14709
dc.identifier.volume42en_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorDuman, M.en_US
dc.language.isoenen_US
dc.publisherYildiz Technical Universityen_US
dc.relation.ispartofSigma Journal of Engineering and Natural Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject2.4 GHz WLAN Applicationsen_US
dc.subjectBL011 LNAen_US
dc.subjectBPFen_US
dc.subjectGeometric Mean Prototype Element Valuesen_US
dc.subjectHidden Signalsen_US
dc.titleLow noise amplifier design for hidden wireless lan applications using band pass filter with geometric mean prototype element valuesen_US
dc.typeArticleen_US

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