By Xiaopeng Li
This can be the 1st booklet near to multi-standard instant receivers. It covers either the research and layout facets of CMOS radio receivers, with basic specialise in receivers for cellular terminals. the topic of multi-standard facts converter layout for base stations is additionally lined.
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Additional info for Multi-Standard CMOS Wireless Receivers: Analysis and Design (The Springer International Series in Engineering and Computer Science)
This will be discussed in the following sections. 6. According to the definition of intermodulation test in DCS 1800, the receiver must maintain 9dB C/I at the output of the receiver with the adjacent channel power of -49dBm. The maximum receiver input referred noise floor is at 109dBm and the desired signal is at -97dBm. The IM3 component must be: Therefore, the input referred IP3 is, Which gives us a -19dBm input referred IP3 or better required of the receiver to be compliant with the DCS1800 standard.
4GHz except HIPERLAN Type 1, for which we need a separate LNA and a multi-band LO in the RF part while the baseband is still the same. 4. 4GHz short-range wireless local area network (WLAN) standards can be classfied by two types. 0. From the discussions in previous sections,one may realize that a multistandard receiver architecture can be developed by a reconfigurable zero-IF/lowIF multi-standard architecture . 7, can be reconfigured from the digital baseband and optimized to be suitable for both types of WLAN standards.
This time because of the rather low IF frequency image rejection is difficult to implement. Image rejection mixer techniques are required instead of an image rejection filter, which is almost impossible to implement either on-chip or off-chip in this situation. In practical image rejection mixers, the amplitude and phase mismatches between I and Q channels are the ultimate limitation of the image rejection ratio. These mismatches come from the two-phase LO signals, I and Q mixers and the addition function.
Multi-Standard CMOS Wireless Receivers: Analysis and Design (The Springer International Series in Engineering and Computer Science) by Xiaopeng Li