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Two shaft continuous mixer
Lukuvka, Šimon ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma project solves questions of blending processes and mixers of partikular materials. In the first and the second part is solved theoreticel analysis of blending processes. Contain of the third and the fourth part is designing and calculating of the mixer´s parameters.
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Spectrum Analyzer up to 500 MHz
Čada, David ; Vimperk), Tomáš Baráth (Rohde Schwarz (referee) ; Šebesta, Jiří (advisor)
This project deals with design and realization of the spectrum analyser using double superheterodyne topology with frequency range up to 500MHz. This work solves hardware blocks like phase lock loops, intermediate frequency filters, saw filter, crystal filter, logarithmic detector. Content of work is also design description and tuning of spectrum analyzer parts.
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UHF band front-end of quadrature receiver
Tiller, Jakub ; Špaček, Jiří (referee) ; Kasal, Miroslav (advisor)
The object of this master's thessis is study and description of RF circuits, which are used for receiveing. This work is also aimed to design this circuits and their simulation in Ansoft Designer software. Focus is placed to the standard parameters of receiving technology. The description of amplifier design is presented in this work. Parameters of this amplifier are optimalized to low noise figure. Frequency multiplier designs are included in this project.
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Retrodirective antenna array
Šindler, Pavel ; Morávek, Ondřej (referee) ; Pokorný, Michal (advisor)
In the first part of this thesis a basic theory of retrodirective antenna arrays and their particular parts – antennas and mixers is summarized. Further, there is a basic summary of possibilities for an usage of retrodirective antenna arrays for an information transmission. The second part deals with the concrete retrodirective antenna array design. The design starts with creation of an antenna array model for MATLAB software. Then a suitable structure for further design is chosen. Further, particular parts of retrodirctive antenna array – a patch antenna, a mixer, a low-pass filter, a bandstop filter, a signal combiner and a Wilkinson power divider are designed and analyzed in Ansoft Designer software. For the patch antenna analysis also CST Microwave Studio software is used. The following part deals with the realization of particular parts of the retrodirecive antenna array and its parameters measuring.
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DRM signal receiver
Mik, Šimon ; Charvát, Jiří (referee) ; Šnajdr, Václav (advisor)
The master’s thesis deals with the design of DRM (Digital Radio Mondiale) receiver. The block diagram of receiver was chosen and particular blocks were theoretically analyzed. After that followed design and production of each block. The synthesizer was programmed and the receiver properties were verified. The last part of thesis deals with real receiving of DRM broadcast.
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HF and IF circuits of shortwave radiostation
Šnajdr, Václav ; Vágner, Petr (referee) ; Lukeš, Zbyněk (advisor)
The study, description, design and implementation of selected blocks of multiband shortwave radio station are dealt with in the thesis. Focus is placed on the concept of multiband shortwave radio stations, with an emphasis on high frequency and intermediate frequency circuits. The first chapter is devoted to description of the transceiver block diagram which is designed as superheterodyne. The design of bandpass input filters, intermediate frequency crystal filters and output filters is described. Simulation results and the measured characteristics of the implemented functional blocks are presented. Furthermore, the amplifier circuits which maintain impedance matching of individual blocks are discussed. SSB signal generation in the transmitter part of radio station and final stage power amplification are depicted.
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Design of Electric Hand Mixer
Nováková, Monika ; Buganská, Tamara (referee) ; Rubínová, Dana (advisor)
This thesis deals with the design of an electric hand mixer while in the entire process is favored new perspective not only on the design of the product but also its function from the user's point of view. Its goal is to design the look of the product which will be unique and differently shaped from the products occurring these days in the market and will satisfy every technical and ergonomic requirements. It should be design of the lower price category product. This thesis, among other things, deals with the handling and storage of mixer beaters. The solution is to be an innovative way of keeping whisk together with the mixer which does not adversely affect the handling and does not increase the price.
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LPG Alternative Fuel Cars
Magdolen, Michal ; Kaplan, Zdeněk (referee) ; Ramík, Pavel (advisor)
This Bachelor's thesis contents the very last development in field of LPG alternative fuel cars. The thesis deals with constitution and characteristic properties of LPG, survey and description of various LPG components, LPG conversion, the use of a specific LPG system, according to engine technological level, ecologic aspects and LPG influence on engine components wear. The conclusion contain important knowledge and very own expirience in matter of LPG conversion and its economic features.
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Construction and realisation of SW receiver DRM
ŠMRHA, Jiří
The topic of the work is to design a DRM receiver of radio broadcasting on the principle of direct mixing in short wave frequency band (SW). The spread of frequencies issues in SW band, and the basic principles and characteristics of digital radio broadcasting on DRM platform in SW band, is described here. The work describes various functional blocks of receivers with direct mixing and concrete construction of such a receiver based on IO Philips\regm{} SA602 with evaluation of a received signal through special software called DREAM.
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