Design of ZigBee Transmitters Using Modulated Frequency Synthesizer
碩士 === 國立高雄第一科技大學 === 電腦與通訊工程所 === 98 === This thesis proposes a design of ZigBee transmitters using modulated frequency synthesizer for 2.45GHz . By using the fractional-N frequency synthesizer with the delta-sigma modulator (DSM) which could conquer the relevant limitations of the integral-N frequ...
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ndltd-TW-098NKIT56500522016-04-20T04:17:31Z http://ndltd.ncl.edu.tw/handle/68799907861498421968 Design of ZigBee Transmitters Using Modulated Frequency Synthesizer 運用調制式頻率合成器之ZigBee發射機設計 Yung-Chin Yang 楊永欽 碩士 國立高雄第一科技大學 電腦與通訊工程所 98 This thesis proposes a design of ZigBee transmitters using modulated frequency synthesizer for 2.45GHz . By using the fractional-N frequency synthesizer with the delta-sigma modulator (DSM) which could conquer the relevant limitations of the integral-N frequency synthesizer such as the frequency resolution , loop bandwidth and locked time . Furthermore , by using the higher order’s delta-sigma modulator to suppress the growth of fractional spurs effectively . In the physical circuit , the basic phase-locked loop consist of phase frequency detector (PFD) , voltage-controlled oscillator (VCO) , divider and loop filter (LF) . Integrating with the digital-analog converter and Xilinx Vertex-4 ML401 FPGA module by Verilog code programming to implement a modulated frequency synthesizer which with a frequency resolution of 305Hz , loop bandwidth of 200kHz and the locked time is around 13us while 87MHz step change . Besides , the measured phase noises are as good as -71dBc/Hz@100kHz and -103dBc/Hz@1MHz . The quality of modulated signals can reach a transmission rate of 2.5Mbps and the error vector magnitude (EVM) is less than 12% . Kang-Chun Peng 彭康峻 2010 學位論文 ; thesis 75 zh-TW |
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碩士 === 國立高雄第一科技大學 === 電腦與通訊工程所 === 98 === This thesis proposes a design of ZigBee transmitters using modulated frequency synthesizer for 2.45GHz . By using the fractional-N frequency synthesizer with the delta-sigma modulator (DSM) which could conquer the relevant limitations of the integral-N frequency synthesizer such as the frequency resolution , loop bandwidth and locked time . Furthermore , by using the higher order’s delta-sigma modulator to suppress the growth of fractional spurs effectively . In the physical circuit , the basic phase-locked loop consist of phase frequency detector (PFD) , voltage-controlled oscillator (VCO) , divider and loop filter (LF) . Integrating with the digital-analog converter and Xilinx Vertex-4 ML401 FPGA module by Verilog code programming to implement a modulated frequency synthesizer which with a frequency resolution of 305Hz , loop bandwidth of 200kHz and the locked time is around 13us while 87MHz step change . Besides , the measured phase noises are as good as -71dBc/Hz@100kHz and -103dBc/Hz@1MHz . The quality of modulated signals can reach a transmission rate of 2.5Mbps and the error vector magnitude (EVM) is less than 12% .
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author2 |
Kang-Chun Peng |
author_facet |
Kang-Chun Peng Yung-Chin Yang 楊永欽 |
author |
Yung-Chin Yang 楊永欽 |
spellingShingle |
Yung-Chin Yang 楊永欽 Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
author_sort |
Yung-Chin Yang |
title |
Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
title_short |
Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
title_full |
Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
title_fullStr |
Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
title_full_unstemmed |
Design of ZigBee Transmitters Using Modulated Frequency Synthesizer |
title_sort |
design of zigbee transmitters using modulated frequency synthesizer |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/68799907861498421968 |
work_keys_str_mv |
AT yungchinyang designofzigbeetransmittersusingmodulatedfrequencysynthesizer AT yángyǒngqīn designofzigbeetransmittersusingmodulatedfrequencysynthesizer AT yungchinyang yùnyòngdiàozhìshìpínlǜhéchéngqìzhīzigbeefāshèjīshèjì AT yángyǒngqīn yùnyòngdiàozhìshìpínlǜhéchéngqìzhīzigbeefāshèjīshèjì |
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