一种用于MIMO信号产生的7-8 GHz Serrodyne调制器

2014 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) Pub Date : 2014-10-22 DOI:10.1109/CSICS.2014.6978531

Johan C. J. G. Withagen, A. Annema, B. Nauta, F. V. van Vliet

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引用次数: 0

摘要

一个8位360锯齿调制移相器用于对7到8 GHz之间的射频信号施加非常小的频率偏移。可获得6hz ~ 10MHz的偏移量。这种频率偏移可以用来产生正交信号，这在例如MIMO应用中是必需的。每个不需要的频率分量被抑制到-30 dBc以下。相位调制器采用250nm SiGe BICMOS技术实现。

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A 7-8 GHz Serrodyne Modulator in SiGe for MIMO Signal Generation

An 8-bit 360o sawtooth modulated phase shifter is used to apply very small frequency offsets to RF signals between 7 and 8 GHz. Offsets between 6 Hz and 10MHz can be obtained. Such frequency offsets can be used to generate orthogonal signals, which are required in e.g. MIMO applications. Each undesired frequency component is suppressed to below -30 dBc. The phase modulator is realized in a 250 nm SiGe BICMOS technology.

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2014 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)

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