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Title:Izvedba frekvenčnega modulatorja v pasu VHF : diplomsko delo
Authors:ID Jančič, Anže (Author)
ID Donaj, Gregor (Mentor) More about this mentor... New window
Files:.pdf VS_Jancic_Anze_2023.pdf (2,84 MB)
MD5: 607FBA8789B8DF2B4A92A12F154C25A0
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V diplomski nalogi smo predelali teoretično osnovo brezžičnih komunikacij ter različnih vrst modulacij. Načrtali, izdelali ter izmerili smo frekvenčni modulator z uporabo osnovnih gradnikov. Vezje deluje po principu frekvenčne pretvorbe navzgor z uporabo vmesne frekvence. Uporabili smo napetostno krmiljen oscilator, lokalni oscilator, diodni obročni mešalnik ter ojačevalnik RF. Delovanje vezja smo preverili z različnimi oblikami ter frekvencami vhodnega signala. Meritve izhodnega signala smo izvedli z osciloskopom ter spektralnim analizatorjem ter jih vrednotili in primerjali s pričakovanimi.
Keywords:frekvenčna, modulacija, VHF, VCO
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[A. Jančič]
Year of publishing:2023
Number of pages:1 spletni vir (1 datoteka PDF (X, 50 f.))
PID:20.500.12556/DKUM-84891 New window
UDC:621.376.3(043.2) (043.2)
COBISS.SI-ID:176394499 New window
Publication date in DKUM:18.08.2023
Views:820
Downloads:147
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-SA 4.0, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-nc-sa/4.0/
Description:A Creative Commons license that bans commercial use and requires the user to release any modified works under this license.
Licensing start date:06.08.2023

Secondary language

Language:English
Title:Implementation of a Frequency Modulator in the VHF Band
Abstract:In this thesis, we covered the theoretical background of wireless communications and various types of modulations. We designed, constructed, and measured a frequency modulator using basic components. The circuit operates on the principle of up conversion using an intermediate frequency. We utilized a voltage-controlled oscillator, a local oscillator, a diode ring mixer, and an RF amplifier. The circuit was verified using different waveforms and input signal frequencies. We conducted measurements of the output signal using an oscilloscope and a spectrum analyzer, evaluated them, and compared them with the expected results.
Keywords:frequency, modulation, VHF, VCO


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