Effects of the combined RF impairments on the error vector magnitude according to transmitter architectures = 결합된 RF 불일치가 Transmitter의 종류에 따라 Error Vector Magnitude에 미치는 영향

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For generating quadrature signals, two signal components are needed. Radio frequency (RF) transmitters can be classified by the ways to generate quadrature signals. Therefore in-phase/quadrature I/Q, polar and out-phasing transmitter exists. In designing transmitters, error vector magnitude (EVM) is widely used as a simple indicator to estimate accuracy of signals. Transmitter mismatches and RF non-linearity of power amplifier (PA) are main factors affecting on the performance degradation. In this thesis when each transmitter sends quadrature amplitude modulation (QAM) signals and orthogonal frequency division multiplexing (OFDM) signals, the effects of the transmitter mismatches and RF non-linearity of PA on EVM are analyzed mathematically and verified by the simulation and measurements.
Advisors
Yoo, Hyung-Jounresearcher유형준
Description
한국과학기술원 : 전기및전자공학과,
Publisher
한국과학기술원
Issue Date
2013
Identifier
513372/325007  / 020113619
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 2013.2, [ vi, 52 p. ]

Keywords

Out-phasing transmtter; I/Q transmitter; EVM; Polar transmitter; RF impairments; EVM; I/Q 송신기; Out-phasing 송신기; Polar 송신기; RF 결함; 비선형성; Non-linearity

URI
http://hdl.handle.net/10203/180976
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=513372&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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