Title :
An X-Band Transmitter For Small Satellites
Author :
Xianfeng, Liang ; Hao, Geng ; Jiang Yaxiang ; Chunjian, Xie ; Xiaomin, Chen ; Huixian, Sun
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
An X-band QPSK transmitter designed for data rates up to 150 Mbps for small satellites with power, mass and size constraints is described in this paper. A direct modulation method where the baseband data directly modulate the X-band carrier is applied to the development of the X-band transmitter. This method can reduce the complexity and size of the hardware. 14 W (41.5 dBm) RF output power of the X-band transmitter at 8.2 GHz center frequency is obtained by a solid state power amplifier (SSPA).
Keywords :
modulation; power amplifiers; radio transmitters; satellite communication; X-band transmitter; bit rate 150 bit/s; direct modulation method; frequency 8.2 GHz; power 14 W; small satellites; solid state power amplifier; Baseband; Hardware; Power amplifiers; Power generation; Quadrature phase shift keying; Radio frequency; Radiofrequency amplifiers; Satellites; Solid state circuits; Transmitters;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381506
