We tested the hypothesis that single nucleotide polymorphisms (SNPs) within genes of the NF-κB pathway are associated with altered clinical outcome of septic shock patients. We genotyped 59 SNPs in the NF-κB pathway in a discovery cohort of septic…
Papers in Antennas and Propagation
Antennas and Propagation papers in Electrical and Electronic Engineering, A
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We propose an all-digital UWB transmitter architecture that exploits the low duty cycle of impulse-radio UWB to achieve ultra-low power consumption. The design supports the IEEE 802.15.4a standard and is demonstrated for its mandatory mode. A…
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This paper presents a novel phased-array antenna system with multifrequency, full-duplex operation, and wide-beam scanning. The system consists of a wideband power divider, a low-loss and low-cost multiline phase shifter controlled by dual…
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This paper describes a voltage regulator system for ultra-low-power RFID tags (also called passive tags) in a 0.15 mum analog CMOS technology. These tags derive their power supply from the incoming RF energy through rectification instead of from a…
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In this paper the analysis, design and characterization of a 15 GHz power distributed amplifier for ultra-wideband radar and sensing applications are presented. The amplifier is fabricated in a low-cost 0.25 mum SiGe BiCMOS technology with a transit…
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A 1.5-GHz low noise amplifier (LNA), intended for use in a global positioning system (GPS) receiver, has been implemented in a standard 0.6-μm CMOS process. The amplifier provides a forward gain (S21) of 22 dB with a noise figure of only 3.5 dB…
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This paper describes the circuit design and measurement results of a new CMOS frequency doubler proposed for 5-GHz-band wireless applications. The doubler, which can operate at 1.8 V, was fabricated in a standard 0.18-μm bulk CMOS technology which…
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An integrated low-noise amplifier and downconversion mixer operating at 1 GHz has been fabricated for the first time in 1 μm CMOS. The overall conversion gain is almost 20 dB, the double-sideband noise figure is 3.2 dB, the IIP3 is +8 dBm, and the…
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A three-stage 21-26-GHz medium-power amplifier fabricated in fT=120 GHz 0.2 mu;m SiGe HBT technology has 19 dB small-signal gain and 15 dB gain at maximum output power. It delivers 23 dBm, 19.75% PAE at 22 GHz, and 21 dBm, 13% PAE at 24 GHz. The…
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This paper reports a novel rectifying antenna (rectenna) based on modified bridge rectifier with four Schottky diodes. The 2.45-GHz microwave rectifier has been developed and optimized using a global simulation technique which associates…
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A 24 GHz, +18.0 dBm fully-integrated power amplifier (PA) with 50 Omega input and output matching is designed in 0.13 mum SiGe BiCMOS process. The power amplifier features a peak power gain of 7.8 dB with 15.89 dBm output power at 1 dB compression…
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A compact 24-GHz Yagi-Uda antenna has been developed using standard design tables and simple scaling to take into account the added capacitance due to the supporting dielectric substrate. The antenna results in a directivity of 9.3 dB, a…
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This paper presents a plug-and-play module for wireless electroencephalogram (EEG) applications. The wireless module is composed by an electrode, processing electronics, a radio-frequency (RF) transceiver, and an associated antenna. The RF…
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Two- and three- stage high voltage/high power (HiVP) amplifiers have been designed, implemented, and measured using a 0.12 ??m SiGe HBT process. The HiVP is a circuit configuration that allows for very large output voltage swings, leading to high…
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A local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming…
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The design, manufacture and characterization of a sub-harmonic mixer operating in the millimeter wavelength range is described. The mixer combines for the first time electromagnetic band gap (EBG) technology (which improves the radiation features of…
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This paper reports on the analysis, design and characterization of a 30 GHz lumped broadband driving amplifier for ultra-wideband localization and sensor systems. The circuit integrates a cascode differential stage, which is fed by two cascaded…
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We have developed a SiGe HBT low-noise amplifier (LNA) for ultra-wideband (UWB) systems. We reduced the noise figure (NF) over the frequency range from 3.1 to 10.6 GHz (the FCC-specified UWB range) by using a novel LNA structure with an…
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Papers in associated sub-disciplines
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