NDLI: Analysis of design specification for digital polar RF transmitter at system and architectural level

Content Provider	IEEE Xplore Digital Library
Author	Junqing Guan Aref, A.F. Negra, R.
Copyright Year	2012
Description	Author affiliation: Mixed-Signal CMOS Circuits, UMIC Research Centre, RWTH Aachen University, Germany (Junqing Guan; Aref, A.F.; Negra, R.)
Abstract	The polar transmitter is an alternative RF transmitter architecture solution for highly efficient amplification of nonconstant envelope signals. This paper presents an analysis of system performance of digital polar RF transmitters. The approach is to analyse the relation between error vector magnitude (EVM) and output power spectrum density (PSD). The requirements on amplitude dynamic range, bit resolution and time delay mismatch for AM/PM paths are studied and used to specify the design of digital polar RF transmitters. All the components in the digital polar RF transmitter have been modelled both in Matlab and SystemC. The analysis and simulation can be completed within seconds. Based upon the presented analysis results, optimum design parameters for the components and system can be easily derived. With the analysed specification, the performance of the polar transmitter regarding EVM and PSD is verified at the system level as well.
Starting Page	443
Ending Page	446
File Size	499653
Page Count	4
File Format	PDF
ISBN	9781457711534
ISSN	21642974
e-ISBN	9781457711558
DOI	10.1109/RWS.2012.6175395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Radio transmitters Bandwidth Delay effects Modulation Peak to average power ratio spectrum emission mask Polar RF transmitter phase modulation PLL two-point modulation AM/PM delay time LTE EVM
Content Type	Text
Resource Type	Article

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