KU-band SiGe HBT I/Q subharmonic mixer with reactive quadrature generators

Sheng Che Tseng; Jin Siang Syu; Jen Yi Su; Hung Ju Wei; Chin-Chun Meng; Guo Wei Huang

doi:10.1002/mop.25281

KU-band SiGe HBT I/Q subharmonic mixer with reactive quadrature generators

Sheng Che Tseng, Jin Siang Syu, Jen Yi Su, Hung Ju Wei, Chin-Chun Meng^*, Guo Wei Huang

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Article

1 Scopus citations

Abstract

This article demonstrates a high-frequency 0.35-μm SiGe HBT subharmonic downconverter with reactive in-phase and quadrature-phase (I/Q) generators. Two reactive I/Q generators are integrated in our work to provide differential quadrature RF and LO signal. The I/Q subharmonic downconverter with single-ended LO, RF, and IF (I/Q) ports has a conversion gain of 1 dB, IP_1dB of -10 dBm, IIP₃ of 0 dBm, and IIP₂ of 21 dBm at 16.4 GHz. The magnitude and phase errors between the I and Q channels are 1.34% and 0.6°, respectively. The dc power consumption of this I/Q mixer without output buffers is approximately 5 mW.

Original language	English
Pages (from-to)	1516-1520
Number of pages	5
Journal	Microwave and Optical Technology Letters
Volume	52
Issue number	7
DOIs	https://doi.org/10.1002/mop.25281
State	Published - 1 Jul 2010

Keywords

Direct conversion
I/Q
SiGe HBT
Subharmonic
Transformer

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10.1002/mop.25281

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title = "KU-band SiGe HBT I/Q subharmonic mixer with reactive quadrature generators",

abstract = "This article demonstrates a high-frequency 0.35-μm SiGe HBT subharmonic downconverter with reactive in-phase and quadrature-phase (I/Q) generators. Two reactive I/Q generators are integrated in our work to provide differential quadrature RF and LO signal. The I/Q subharmonic downconverter with single-ended LO, RF, and IF (I/Q) ports has a conversion gain of 1 dB, IP1dB of -10 dBm, IIP3 of 0 dBm, and IIP2 of 21 dBm at 16.4 GHz. The magnitude and phase errors between the I and Q channels are 1.34% and 0.6°, respectively. The dc power consumption of this I/Q mixer without output buffers is approximately 5 mW.",

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AU - Meng, Chin-Chun

AU - Huang, Guo Wei

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