Jeong, Hee-Young ; Park, Sang-Keun ; Ryu, Nam-Sik ; Jeong, Yong-Chae ; Yom, In-Bok ; Kim, Young (2005) A design of K-band predistortion linearizer using reflective schottky diode for satellite TWTAs. In: Gallium Arsenide applications symposium. GAAS 2005, 3-7 ottobre 2005, Parigi.
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Abstract
In this paper, a new predistortion method to reduce nonlinearity of a traveling wave tube amplifiers (TWTAs) is proposed. Nonlinear transfer characteristics of TWTA are analyzed using a Carrier Complex Power Series (CCPS). An inverse complex power series of a predistortion linearizer to linearize TWTA are also proposed. The inverse nonlinear distortion characteristics of predistorter can be realized with reflective structure that is composed of schottky diode and resistor-terminated transmission line. The AM-to-AM and the AM-to-PM characteristics of TWTA on K-band were improved from -5.8dB and -37.3° to 0.8dB and 6.7° by proposed predistortion linearizer, respectively.
| Document type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Area 09 - Ingegneria industriale e dell'informazione > ING-INF/01 Elettronica |
| Depositato da: | CIB Staff |
| Depositato il: | 15 Feb 2006 |
| Last modified: | 16 May 2011 13:45 |
Solo per lo Staff dell Archivio: Gestione del documento
