The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The importance of taking into account thermal electrons when designing the beam optics of a TWT is shown on the example of Ku-Band space TWT with a high beam efficiency.
The paper shows a new generation very high power conduction cooled S-band TWT feasible for 500W continuous RF output power. This TWT, named TL 2500, was designed for geostationary payloads with an overall output power of several kW. The RF output of the TWT is done with a WR340 ¼ height waveguide interface which will be used already on these payloads for the high power network up to the antenna. The...
The paper presents the capability of THALES Traveling Wave Tubes (TWT) for broadband satellite applications in the Ku- and the Ka-band. In the last years on the communication market a significant increase of data transfer has been recognized. Based on this continuing trend the satellite infrastructure has to provide a flexible and broadband solution for the communication equipment. The RF amplifier...
Broadcasting radio programs from satellites to mobile users has been operating for many years in the United States, Canada and South Korea. The service, generally called Satellite Radio, is provided at S-band radio frequencies. Satellite Radio users require near perfect service availability. Since most users are mobile (automobiles and handheld reception), the antennas of their receivers have little...
Thales extends its offer of high power TWT's for satellite uplink applications with the TH4092, a 500 W peak / 350 W CW TWT in the 27.5-30 & 30-31 GHz frequency ranges. The last phase of the development program was successfully completed. The prototype results show high efficiency and good linearity performances. Margin and qualification tests are nearly finished and the industrial means are in...
The paper will show the actual performance of a Thales waveguide output solution for today high power S-Band TWTs. The WR340 ¼ height waveguide output has no more any dielectric inside the interface. It is a common output solution for all S-Band high power RC and CC TWTs and is also usable for future TWT developments with higher output power. Furthermore the paper shows the data of an improved RC...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.