Search Results - "Hong, Yunseog"
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A Proximity Coupling RF Sensor for Wrist Pulse Detection Based on Injection-Locked PLL
Published in IEEE transactions on microwave theory and techniques (01-05-2016)“…In this paper, a proximity coupling RF sensor based on injection-locked phase-locked loop (PLL) for wrist pulse detection is proposed. The sensor is composed…”
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Journal Article -
2
Noncontact Proximity Vital Sign Sensor Based on PLL for Sensitivity Enhancement
Published in IEEE transactions on biomedical circuits and systems (01-08-2014)“…In this paper, a noncontact proximity vital sign sensor, using a phase locked loop (PLL) incorporated with voltage controlled oscillator (VCO) built-in planar…”
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3
A Label-Free Biosensing Platform Using a PLL Circuit and Biotin-Streptavidin Binding System
Published in IEEE transactions on biomedical circuits and systems (01-06-2015)“…This paper proposes a novel RF biosensor that utilizes a frequency synthesizer associated with a microstrip open-loop resonator for label-free biomolecular…”
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4
A gas sensor using double split-ring resonator coated with conducting polymer at microwave frequncies
Published in IEEE SENSORS 2014 Proceedings (01-11-2014)“…In this research, a gas sensor using double split-ring resonator (DSRR) incorporated with conducting polymer (CP) is proposed at microwave frequencies (K u…”
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Conference Proceeding -
5
A reflection type gas sensor using conducting polymer as a variable impedance at microwave frquencies
Published in IEEE SENSORS 2014 Proceedings (01-11-2014)“…In this paper, a gas sensor using a reflection type variable attenuator structure with conducting polymer (CP) is represented. A common gas sensing mechanism…”
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Conference Proceeding -
6
Simple Strategies to Build Random Compressive Sensing Matrices in Step-Frequency Radars
Published in IEEE geoscience and remote sensing letters (01-09-2018)“…By applying compressive sensing, we can obtain radar range profile using only part of the frequency bins in step-frequency radars. While the probability of…”
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Journal Article -
7
Noncontact RF Vital Sign Sensor for Continuous Monitoring of Driver Status
Published in IEEE transactions on biomedical circuits and systems (01-06-2019)“…In this paper, a radio frequency vital sign sensor based on double voltage-controlled oscillators (VCOs) combined with a switchable phase-locked loop (PLL) is…”
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8
Proximity coupled vital sign sensor based on phase locked loop under injection
Published in 2013 Asia-Pacific Microwave Conference Proceedings (APMC) (01-11-2013)“…In this paper, a phase locked oscillator under injection is designed with proximity coupled vital sign sensor at 2.4 GHz. The proposed system is composed of a…”
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Conference Proceeding -
9
Advanced non-contact near-field proximity vital sign sensor using phase locked loop
Published in 2013 European Microwave Conference (01-10-2013)“…A non-contact near-field vital sensor based on phase locked loop (PLL) circuit is proposed for vital signal detection, such as heartbeat and respiration. The…”
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Conference Proceeding -
10
Switchable power combining circuit for improved graceful-degradation performance
Published in Microwave and optical technology letters (01-05-2015)“…ABSTRACT A four‐way switchable power combiner/divider is proposed in this letter. The structure is based on a substrate integrated circular cavity, and control…”
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11
High-frequency characteristics of conducting polymer for gas-sensor
Published in IEEE SENSORS 2014 Proceedings (01-11-2014)“…In this paper, we report the intrinsic characteristics of conducting polymer for gas-sensor at high frequency region, i.e., 500 MHz to 10 GHz. To investigate…”
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Conference Proceeding