传感技术学报Issue(8)：1168-1172,5.DOI:10.3969/j.issn.1004-1699.2013.08.025
适用于微小卫星的低功耗S波段发射机设计与实现
Design and Implementation of a Low-Power S-Band Transmitter For Micro-Satellites
李建宇 1张朝杰 1金小军 1娄延年1
作者信息
- 1. 浙江大学微小卫星研究中心,杭州,310027
- 折叠
摘要
Abstract
A new S-band transmitter structure with small volume and low-power consumption is presented for LEO micro-satellite applications. Due to the use of the image frequency of the DAC,the IF signal of higher frequency is generated with a relatively low processing rate. In this way, the downlink signal is moved to the transmitting frequency with one mixing stage, thus effectively reducing the transmitter's volume and power consumption. The transmitter was implemented on a printed circuit board,and the test results showed that a transmit power of 26 dBm and a power consumption of only 2. 2 W are achieved. The transmitter can be used in micro-satellites in orbits lower than 1 000 km.关键词
测控应答机/直接上变频/镜像频率/发射机Key words
transponder/direct-up conversion/image frequency/transmitter分类
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李建宇,张朝杰,金小军,娄延年..适用于微小卫星的低功耗S波段发射机设计与实现[J].传感技术学报,2013,(8):1168-1172,5.
