Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer
This research involves design and simulation of GaussianFSK transmitter in UHF band using direct modulation of ΣΔ fractional-N synthesizer with the following specifications: <br />Frequency range (869.9 900.4) MHz, data rate 150kbps, channel spacing (500 kHz), Switching time...
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Al-Khwarizmi College of Engineering – University of Baghdad
2008
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oai:doaj.org-article:165e0bf88bab4f5891ad7012c033b92c2021-12-02T04:14:49ZDesign and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer1818-1171https://doaj.org/article/165e0bf88bab4f5891ad7012c033b92c2008-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2388https://doaj.org/toc/1818-1171This research involves design and simulation of GaussianFSK transmitter in UHF band using direct modulation of ΣΔ fractional-N synthesizer with the following specifications: <br />Frequency range (869.9 900.4) MHz, data rate 150kbps, channel spacing (500 kHz), Switching time 1 µs, & phase noise @10 kHz = -85dBc.<br />New circuit techniques have been sought to allow increased integration of radio transmitters and receivers, along with new radio architectures that take advantage of such techniques. Characteristics such as low power operation, small size, and low cost have become the dominant design criteria by which these systems are judged.<br />A direct modulation by ΣΔ fractional-N synthesizer is proposed in this research, because this approach provides the required characteristics such as low power. The Σ∆ modulator placed on digital phase-locked loop to control the fractional value of the frequency division ratio thereby eliminating spurious and allowing good phase noise performance. The modulation type of Gaussian FSK is used to obtain high spectral efficiency of modulated waveform.<br />The applications of this transmitter in low cost wireless data transfer, security systems, RF remote controls and wireless metering.<br />Ali Mohammed Noori HasanAl-Khwarizmi College of Engineering – University of BaghdadarticleMash modulatorGaussianfractionalsigma deta and FSK.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 4, Iss 3, Pp 1-7 (2008) |
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DOAJ |
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DOAJ |
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EN |
| topic |
Mash modulator Gaussian fractional sigma deta and FSK. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 |
| spellingShingle |
Mash modulator Gaussian fractional sigma deta and FSK. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Ali Mohammed Noori Hasan Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| description |
This research involves design and simulation of GaussianFSK transmitter in UHF band using direct modulation of ΣΔ fractional-N synthesizer with the following specifications: <br />Frequency range (869.9 900.4) MHz, data rate 150kbps, channel spacing (500 kHz), Switching time 1 µs, & phase noise @10 kHz = -85dBc.<br />New circuit techniques have been sought to allow increased integration of radio transmitters and receivers, along with new radio architectures that take advantage of such techniques. Characteristics such as low power operation, small size, and low cost have become the dominant design criteria by which these systems are judged.<br />A direct modulation by ΣΔ fractional-N synthesizer is proposed in this research, because this approach provides the required characteristics such as low power. The Σ∆ modulator placed on digital phase-locked loop to control the fractional value of the frequency division ratio thereby eliminating spurious and allowing good phase noise performance. The modulation type of Gaussian FSK is used to obtain high spectral efficiency of modulated waveform.<br />The applications of this transmitter in low cost wireless data transfer, security systems, RF remote controls and wireless metering.<br /> |
| format |
article |
| author |
Ali Mohammed Noori Hasan |
| author_facet |
Ali Mohammed Noori Hasan |
| author_sort |
Ali Mohammed Noori Hasan |
| title |
Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| title_short |
Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| title_full |
Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| title_fullStr |
Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| title_full_unstemmed |
Design and Simulation of GaussianFSK Transmitter in UHF Band Using Direct Modulation of ΣΔ Modulator Fractional-N Synthesizer |
| title_sort |
design and simulation of gaussianfsk transmitter in uhf band using direct modulation of ΣΔ modulator fractional-n synthesizer |
| publisher |
Al-Khwarizmi College of Engineering – University of Baghdad |
| publishDate |
2008 |
| url |
https://doaj.org/article/165e0bf88bab4f5891ad7012c033b92c |
| work_keys_str_mv |
AT alimohammednoorihasan designandsimulationofgaussianfsktransmitterinuhfbandusingdirectmodulationof931916modulatorfractionalnsynthesizer |
| _version_ |
1718401351007862784 |