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The Signal and Noise Analysis of Direct Conversion EHM Transceivers
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نویسنده
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Shayegh Farnaz ,Mohammadi Abbas ,Abdipour Abdolali ,Sedghi Vafa ,Mirzavand Rashid
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منبع
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iranian journal of electrical and electronic engineering - 2006 - دوره : 2 - شماره : 1 - صفحه:16 -24
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چکیده
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A direct conversion modulator-demodulator with even harmonic mixers with emphasis on noise analysis is presented. the circuits consist of even harmonic mixers (ehms) realized with antiparallel diode pairs (apdps). we evaluate the different levels of i/q imbalances and dc offsets and use signal space concepts to analyze the bit error rate (ber) of the proposed transceiver using m-ary qam schemes. moreover, the simultaneous analysis of the signal and noise has been presented.
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کلیدواژه
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Even Harmonic Mixer (EHM) ,Direct Conversion Circuitry ,Antiparallel Diode Pair (APDP) ,QAM Modulation ,Signal and Noise.
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آدرس
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amirkabir university of technology, ایران, amirkabir university of technology, ایران, amirkabir university of technology, ایران, amirkabir university of technology, ایران, amirkabir university of technology, ایران
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پست الکترونیکی
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abdipour@ aut.ac.ir
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Authors
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