10GHz dual-conversion low-IF downconverter with microwave and analogue quadrature generators

J. S. Syu; Chin-Chun Meng; Y. H. Teng

doi:10.1049/el.2009.0360

10GHz dual-conversion low-IF downconverter with microwave and analogue quadrature generators

J. S. Syu^*, Chin-Chun Meng, Y. H. Teng

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A 10GHz dual-conversion low-IF downconverter using 0.18-m CMOS technology is demonstrated. The high-frequency quadrature RF and LO₁ signals are generated by broadside-coupled quadrature couplers while a two-section polyphase filter is utilised for the low-frequency LO₂ quadrature signal generation. As a result, the demonstrated downconverter achieves a conversion gain of 7dB, IP_1dB of -16dBm, IIP₃ of -5dBm and noise figure of 26dB at a 1.8V supply. The image-rejection ratio of the first/second image signal is 33/42dB for IF frequency ranging from 10 to 60MHz, respectively.

Original language	English
Pages (from-to)	685-686
Number of pages	2
Journal	Electronics Letters
Volume	45
Issue number	13
DOIs	https://doi.org/10.1049/el.2009.0360
State	Published - 14 Jul 2009

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title = "10GHz dual-conversion low-IF downconverter with microwave and analogue quadrature generators",

abstract = "A 10GHz dual-conversion low-IF downconverter using 0.18-m CMOS technology is demonstrated. The high-frequency quadrature RF and LO1 signals are generated by broadside-coupled quadrature couplers while a two-section polyphase filter is utilised for the low-frequency LO2 quadrature signal generation. As a result, the demonstrated downconverter achieves a conversion gain of 7dB, IP1dB of -16dBm, IIP3 of -5dBm and noise figure of 26dB at a 1.8V supply. The image-rejection ratio of the first/second image signal is 33/42dB for IF frequency ranging from 10 to 60MHz, respectively.",

author = "Syu, {J. S.} and Chin-Chun Meng and Teng, {Y. H.}",

year = "2009",

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doi = "10.1049/el.2009.0360",

language = "English",

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journal = "Electronics Letters",

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AU - Syu, J. S.

AU - Meng, Chin-Chun

AU - Teng, Y. H.

PY - 2009/7/14

Y1 - 2009/7/14

N2 - A 10GHz dual-conversion low-IF downconverter using 0.18-m CMOS technology is demonstrated. The high-frequency quadrature RF and LO1 signals are generated by broadside-coupled quadrature couplers while a two-section polyphase filter is utilised for the low-frequency LO2 quadrature signal generation. As a result, the demonstrated downconverter achieves a conversion gain of 7dB, IP1dB of -16dBm, IIP3 of -5dBm and noise figure of 26dB at a 1.8V supply. The image-rejection ratio of the first/second image signal is 33/42dB for IF frequency ranging from 10 to 60MHz, respectively.

AB - A 10GHz dual-conversion low-IF downconverter using 0.18-m CMOS technology is demonstrated. The high-frequency quadrature RF and LO1 signals are generated by broadside-coupled quadrature couplers while a two-section polyphase filter is utilised for the low-frequency LO2 quadrature signal generation. As a result, the demonstrated downconverter achieves a conversion gain of 7dB, IP1dB of -16dBm, IIP3 of -5dBm and noise figure of 26dB at a 1.8V supply. The image-rejection ratio of the first/second image signal is 33/42dB for IF frequency ranging from 10 to 60MHz, respectively.

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JO - Electronics Letters

JF - Electronics Letters

SN - 0013-5194

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ER -

10GHz dual-conversion low-IF downconverter with microwave and analogue quadrature generators

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