National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Broadband antennas for EMC measurement
Červenka, Dušan ; Svačina, Jiří (referee) ; Vídenka, Rostislav (advisor)
The bachelor’s thesis deals with the wideband EMC antenna problem at bandwidth 30 - 2000MHz. There is outlined different solution and basic antennas modifications. Resulting antenna is logarithmic-periodic antenna. Bend was used on most of segments for reducing proportion.
RF Unit for Portable Monitoring Station
Rokos, Lukáš ; Urbanec, Tomáš (referee) ; Záplata, Filip (advisor)
The thesis describes methods for spectrum monitoring, which are used by the Czech telecommunication office. The thesis describes a design of an RF unit for a portable monitoring station and its potential use. The RF unit consists of several devices, which are connected. Devices like an antenna, a rotator, a rotator control unit, coaxial switches, an amplifier and attenuator were chosen as commercially available devices. It is also described, why were these devices chosen. Other devices such as filters, a control unit for the RF unit and a power supply were designed. The RF unit is controlled by a computer. A software for spectrum monitoring contains a graphical user interface for the RF unit control.
RF Unit for Portable Monitoring Station
Rokos, Lukáš ; Urbanec, Tomáš (referee) ; Záplata, Filip (advisor)
The thesis describes methods for spectrum monitoring, which are used by the Czech telecommunication office. The thesis describes a design of an RF unit for a portable monitoring station and its potential use. The RF unit consists of several devices, which are connected. Devices like an antenna, a rotator, a rotator control unit, coaxial switches, an amplifier and attenuator were chosen as commercially available devices. It is also described, why were these devices chosen. Other devices such as filters, a control unit for the RF unit and a power supply were designed. The RF unit is controlled by a computer. A software for spectrum monitoring contains a graphical user interface for the RF unit control.
Broadband antennas for EMC measurement
Červenka, Dušan ; Svačina, Jiří (referee) ; Vídenka, Rostislav (advisor)
The bachelor’s thesis deals with the wideband EMC antenna problem at bandwidth 30 - 2000MHz. There is outlined different solution and basic antennas modifications. Resulting antenna is logarithmic-periodic antenna. Bend was used on most of segments for reducing proportion.

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