Low-Power Miniature $K$ -Band Sensors for Dielectric Characterization of Biomaterials

Jamal, Farabi Ibne; Guha, Saikat; Eissa, Mohamed Hussein; Borngräber, J.; Meliani, C.; Ng, Herman Jalli; Kissinger, Dietmar; Wessel, Jan

doi:10.1109/tmtt.2016.2633350

Cited by 32 publications

(9 citation statements)

References 29 publications

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“…Two DC inputs of 2.5 V are required for the system power source. On the other hand, each sensor provides two DC outputs in a range of 0–1 V for the real and imaginary parts of the measured permittivity, as shown in Figure 3 d. Further details regarding the circuit design are available in our previous work [ 30 , 31 ]. Using DC inputs and outputs, the amount of perturbation on the system was diminished and the sensor performance was significantly improved.…”

Section: Methodsmentioning

confidence: 99%

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Design and Fabrication of a BiCMOS Dielectric Sensor for Viscosity Measurements: A Possible Solution for Early Detection of COPD

et al. 2018

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The viscosity variation of sputum is a common symptom of the progression of Chronic Obstructive Pulmonary Disease (COPD). Since the hydration of the sputum defines its viscosity level, dielectric sensors could be used for the characterization of sputum samples collected from patients for early diagnosis of COPD. In this work, a CMOS-based dielectric sensor for the real-time monitoring of sputum viscosity was designed and fabricated. A proper packaging for the ESD-protection and short-circuit prevention of the sensor was developed. The performance evaluation results show that the radio frequency sensor is capable of measuring dielectric constant of biofluids with an accuracy of 4.17%. Integration of this sensor into a portable system will result in a hand-held device capable of measuring viscosity of sputum samples of COPD-patients for diagnostic purposes.

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Section: Methodsmentioning

confidence: 99%

“… ( a ) Sensor oscillator circuit [ 30 ], ( b ) second-generation chip with a quadruple-sensor configuration, ( c ) integration of the DC readout circuit and the sensor on the CMOS platform [ 31 ], ( d ) test board of the second-generation dielectric sensor with DC inputs and outputs. …”

Section: Figurementioning

confidence: 99%

Design and Fabrication of a BiCMOS Dielectric Sensor for Viscosity Measurements: A Possible Solution for Early Detection of COPD

et al. 2018

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“…Our research group has worked on CMOS capacitive sensors operating in the frequency range of 5 GHz to 30 GHz for biological purposes [ 59 , 61 , 62 , 63 , 64 , 65 , 66 , 67 ]. The sensing principle is based on the variation of capacitance embedded in a CMOS oscillator, causing a shift in the resonant frequency of the oscillator.…”

Section: Integrated Microwave Biosensormentioning

confidence: 99%

“…Another CMOS frequency shift oscillator based approach for biosensing was shown in the works of our group [ 64 , 65 , 66 ]. The sensor is a transmission line configured as an open or a shunt stub [ 29 ], and the oscillator topology is different as well, when compared to the above examples.…”

Section: Integrated Microwave Biosensormentioning

confidence: 99%

“…The transmission line can be used in several configuration (open or shunt stub) in the oscillator topology. The use of the sensor in different topologies was explored in the work [ 64 ], and an increase in the sensitivity was shown for different configurations of the sensor in the oscillator. These sensors were also explored to distinguish between two biological targets, like fat and calcium.…”

Section: Integrated Microwave Biosensormentioning

confidence: 99%

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A Review on Passive and Integrated Near-Field Microwave Biosensors

2017

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In this paper we review the advancement of passive and integrated microwave biosensors. The interaction of microwave with biological material is discussed in this paper. Passive microwave biosensors are microwave structures, which are fabricated on a substrate and are used for sensing biological materials. On the other hand, integrated biosensors are microwave structures fabricated in standard semiconductor technology platform (CMOS or BiCMOS). The CMOS or BiCMOS sensor technology offers a more compact sensing approach which has the potential in the future for point of care testing systems. Various applications of the passive and the integrated sensors have been discussed in this review paper.

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