Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259519
M. Andersson, O. Habibpour, J. Vukusic, J. Stake
We report on the first room temperature noise figure measurement of a graphene FET subharmonic resistive mixer in the interval fRF = 2-5 GHz. Due to an 8 nm thin Al2O3 gate dielectric it can operate with a conversion loss in the range 20–22 dB at only 0 dBm of local oscillator power. The measurement yields a noise figure close to the conversion loss, thus determining the noise to be thermal in origin, which is promising for cryogenic applications. The general route to lower noise figure is an improvement of the conversion loss.
{"title":"Noise figure characterization of a subharmonic graphene FET mixer","authors":"M. Andersson, O. Habibpour, J. Vukusic, J. Stake","doi":"10.1109/MWSYM.2012.6259519","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259519","url":null,"abstract":"We report on the first room temperature noise figure measurement of a graphene FET subharmonic resistive mixer in the interval fRF = 2-5 GHz. Due to an 8 nm thin Al2O3 gate dielectric it can operate with a conversion loss in the range 20–22 dB at only 0 dBm of local oscillator power. The measurement yields a noise figure close to the conversion loss, thus determining the noise to be thermal in origin, which is promising for cryogenic applications. The general route to lower noise figure is an improvement of the conversion loss.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"117 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82570942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259758
Debin Hou, W. Hong, W. Goh, A. Arasu, Y. Xiong, Chang Liu, M. Madihian
This paper describes a D-band on-chip rat-race coupler using a novel phase inverter and developed in a standard CMOS process. The simple structural phase inverter which is based on the characteristic impedance and phase difference analysis has demonstrated its potential for wideband and compact millimeter-wave frequency range applications. The developed rat-race coupler using the proposed phase inverter, features a 40% size reduction and over 60% bandwidth improvement compared to conventional structures. In the complete D-band range, measured amplitude and phase imbalances for the coupler are within 0.5 dB and 15°, respectively. The port-to-port isolation is better than 25 dB in the D-band range with the highest value of 41 dB at 118 GHz. The insertion loss achieves 1.2 ± 0.3 dB and the coral size of the coupler is only 290 × 162 µm2. The proposed coupler has a huge potential for integration in single-chip systems over 100 GHz.
{"title":"A D-band compact rat-race coupler using novel phase inverter in standard CMOS process","authors":"Debin Hou, W. Hong, W. Goh, A. Arasu, Y. Xiong, Chang Liu, M. Madihian","doi":"10.1109/MWSYM.2012.6259758","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259758","url":null,"abstract":"This paper describes a D-band on-chip rat-race coupler using a novel phase inverter and developed in a standard CMOS process. The simple structural phase inverter which is based on the characteristic impedance and phase difference analysis has demonstrated its potential for wideband and compact millimeter-wave frequency range applications. The developed rat-race coupler using the proposed phase inverter, features a 40% size reduction and over 60% bandwidth improvement compared to conventional structures. In the complete D-band range, measured amplitude and phase imbalances for the coupler are within 0.5 dB and 15°, respectively. The port-to-port isolation is better than 25 dB in the D-band range with the highest value of 41 dB at 118 GHz. The insertion loss achieves 1.2 ± 0.3 dB and the coral size of the coupler is only 290 × 162 µm2. The proposed coupler has a huge potential for integration in single-chip systems over 100 GHz.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"64 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78669199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259710
Abul Hasan, M. Helaoui, F. Ghannouchi
In this paper we show that the characteristics of diode based peak power detectors are dependent on the type of input excitation signal. Linearization of peak power detectors using continuous wave (CW) characterized data results in inaccurate linearized peak powers when compared with peak power data obtained from actual measurements. By comparing the diode power detector behavior under different types of excitations, it is proved that CW characterized data can't be used to linearize peak power detectors when excited with real (modulated) signals having high peak-to-average-power (PAPR) value. For accurate linearization, two new approaches have been proposed; one using calibration factor and another using dynamic calibration. The proposed approaches improved the accuracy of the diode peak power detector used for measurement validation.
{"title":"Dynamic linearization of diodes for high speed and peak power detection applications","authors":"Abul Hasan, M. Helaoui, F. Ghannouchi","doi":"10.1109/MWSYM.2012.6259710","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259710","url":null,"abstract":"In this paper we show that the characteristics of diode based peak power detectors are dependent on the type of input excitation signal. Linearization of peak power detectors using continuous wave (CW) characterized data results in inaccurate linearized peak powers when compared with peak power data obtained from actual measurements. By comparing the diode power detector behavior under different types of excitations, it is proved that CW characterized data can't be used to linearize peak power detectors when excited with real (modulated) signals having high peak-to-average-power (PAPR) value. For accurate linearization, two new approaches have been proposed; one using calibration factor and another using dynamic calibration. The proposed approaches improved the accuracy of the diode peak power detector used for measurement validation.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"37 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87670932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259488
Hao Jiang, S. Zhou, Di Lan, Junmin Zhang, H. Shahnasser, K. Goldman, S. Roy
High-Q inductive coils are essential components in biomedical implants for efficient wireless charging and effective wireless sensing. The planar spiral coil (PSC) that can be easily optimized and reliably fabricated by lithographic tools is a preferred candidate. To support the inductive coupling at MHz range, the size of PSCs used in implants is much larger than those used in wireless communication circuits. Therefore, to achieve high Q, it is imperative to reduce the metal trace's unit-length-resistance. In this paper, multiple parallel-connected metal traces, instead of a conventional single trace, have been employed to reduce the unit-length-resistance by mitigating the skin effect. Although the approach was used to make stranded wires for mega-watts transmission systems, it has been used to design PSCs for the first time. The parallel-trace PSC exhibits 38%~53% improvements in Q when it resonates with a capacitor at ~10 MHz. Measurement results also indicate that there is ~10% inductance reduction in the parallel-trace PSC compared to the single-trace PSC of the same design. Measurement results also indicate that, in a parallel-trace PSC, the length difference between the parallel-connected, side-by-side traces when they are winded into a coil, and the dielectric environment difference when they are placed in different layers, can be neglected when the operating frequency is less than the PSCs self-resonating frequency. Utilizing widely-available planar fabrication technologies, the parallel-trace PSC can be widely adopted in biomedical implants.
{"title":"A parallel-trace high-Q planar spiral coil for biomedical implants","authors":"Hao Jiang, S. Zhou, Di Lan, Junmin Zhang, H. Shahnasser, K. Goldman, S. Roy","doi":"10.1109/MWSYM.2012.6259488","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259488","url":null,"abstract":"High-Q inductive coils are essential components in biomedical implants for efficient wireless charging and effective wireless sensing. The planar spiral coil (PSC) that can be easily optimized and reliably fabricated by lithographic tools is a preferred candidate. To support the inductive coupling at MHz range, the size of PSCs used in implants is much larger than those used in wireless communication circuits. Therefore, to achieve high Q, it is imperative to reduce the metal trace's unit-length-resistance. In this paper, multiple parallel-connected metal traces, instead of a conventional single trace, have been employed to reduce the unit-length-resistance by mitigating the skin effect. Although the approach was used to make stranded wires for mega-watts transmission systems, it has been used to design PSCs for the first time. The parallel-trace PSC exhibits 38%~53% improvements in Q when it resonates with a capacitor at ~10 MHz. Measurement results also indicate that there is ~10% inductance reduction in the parallel-trace PSC compared to the single-trace PSC of the same design. Measurement results also indicate that, in a parallel-trace PSC, the length difference between the parallel-connected, side-by-side traces when they are winded into a coil, and the dielectric environment difference when they are placed in different layers, can be neglected when the operating frequency is less than the PSCs self-resonating frequency. Utilizing widely-available planar fabrication technologies, the parallel-trace PSC can be widely adopted in biomedical implants.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"106 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87818494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259627
C. Goldsmith, J.C.M. Hwang, C. Gudeman, O. Auciello, J. Ebel, H. Newman
RF MEMS switches have evolved significantly since the early days of testing unpackaged devices in an uncontrolled environment with failure modes that could only be guessed at. Today, MEMS switch technology has effective, RF-friendly wafer-level packaging, demonstrated temperature robustness, and failure modes that can be characterized and modeled from accelerated testing. This presentation overviews the advances in packaging, reliability, and environmental robustness for RF MEMS switches made on DARPA's HERMIT program. It also includes more recent developments in novel nanostructured switch dielectrics, CMOS co-integration, intelligent CMOS control, and operation of RF MEMS in adverse thermal and radiation environments.
{"title":"Robustness of RF MEMS capacitive switches in Harsh Environments","authors":"C. Goldsmith, J.C.M. Hwang, C. Gudeman, O. Auciello, J. Ebel, H. Newman","doi":"10.1109/MWSYM.2012.6259627","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259627","url":null,"abstract":"RF MEMS switches have evolved significantly since the early days of testing unpackaged devices in an uncontrolled environment with failure modes that could only be guessed at. Today, MEMS switch technology has effective, RF-friendly wafer-level packaging, demonstrated temperature robustness, and failure modes that can be characterized and modeled from accelerated testing. This presentation overviews the advances in packaging, reliability, and environmental robustness for RF MEMS switches made on DARPA's HERMIT program. It also includes more recent developments in novel nanostructured switch dielectrics, CMOS co-integration, intelligent CMOS control, and operation of RF MEMS in adverse thermal and radiation environments.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"8 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87851899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259659
T. Reed, M. Rodwell, Z. Griffith, P. Rowell, M. Field, M. Urteaga
A 220 GHz solid state power amplifier MMIC is presented demonstrating 58.4 mW of output power with 5.4dB compressed gain. The 8-cell amplifier has a small signal gain of 8.9 dB at 220 GHz, and 3-dB bandwidth from 206 to 242GHz. Amplifier cells are formed using a 250nm InP HBT technology and a 5um BCB thin-film, non-inverted microstrip wiring environment. Power division and combining of the eight amplifier cells is done by a 2-1 quarter wave combiner series connected to a 4-1 Dolph-Chebyshev combiner. More than 50mW of output power was observed from 215 to 225GHz.
{"title":"A 58.4mW solid-state power amplifier at 220 GHz using InP HBTs","authors":"T. Reed, M. Rodwell, Z. Griffith, P. Rowell, M. Field, M. Urteaga","doi":"10.1109/MWSYM.2012.6259659","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259659","url":null,"abstract":"A 220 GHz solid state power amplifier MMIC is presented demonstrating 58.4 mW of output power with 5.4dB compressed gain. The 8-cell amplifier has a small signal gain of 8.9 dB at 220 GHz, and 3-dB bandwidth from 206 to 242GHz. Amplifier cells are formed using a 250nm InP HBT technology and a 5um BCB thin-film, non-inverted microstrip wiring environment. Power division and combining of the eight amplifier cells is done by a 2-1 quarter wave combiner series connected to a 4-1 Dolph-Chebyshev combiner. More than 50mW of output power was observed from 215 to 225GHz.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"31 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86839792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6258333
M. Bocquet, C. Loyez, M. Fryziel, N. Rolland
This paper presents the performance of a millimeter wave (MMW) positioning system operating in indoor environment and using broadband impulse signals. The main original contribution is an approach based on a focusing technique to minimize the performance degradations due to the multipath propagation. Experimental results validate the ability of the topology to perform multi-laterations based on a specific cooperation between sensors. The used focusing technique is detailed and its impact on the positioning accuracy is validated by numerous measurements.
{"title":"Millimeter-wave broadband positioning system for indoor applications","authors":"M. Bocquet, C. Loyez, M. Fryziel, N. Rolland","doi":"10.1109/MWSYM.2012.6258333","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6258333","url":null,"abstract":"This paper presents the performance of a millimeter wave (MMW) positioning system operating in indoor environment and using broadband impulse signals. The main original contribution is an approach based on a focusing technique to minimize the performance degradations due to the multipath propagation. Experimental results validate the ability of the topology to perform multi-laterations based on a specific cooperation between sensors. The used focusing technique is detailed and its impact on the positioning accuracy is validated by numerous measurements.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"15 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86946042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259615
B. Will, I. Rolfes
The application of free space measurements depends on the practicability of the respective calibration procedure. Due to necessary changes of the distance between used antennas or a precise positioning of calibration standards, the suitability of free space setups is limited. This contribution deals with a calibration technique for free space applications, which uses the change of the electrical length by means of small frequency variations. Thus, this technique enables free space calibrations without the necessity of antenna displacements. Furthermore, the bandwidth of this procedure is not limited due to ambiguities of mechanical displacements during the calibration procedure. Additionally, the presented calibration technique is based on the Thru-Line-Network (TLN) method. Hence, symmetrical and reciprocal measurement objects can be characterized within the calibration procedure.
{"title":"A new approach on broadband calibration methods for free space applications","authors":"B. Will, I. Rolfes","doi":"10.1109/MWSYM.2012.6259615","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259615","url":null,"abstract":"The application of free space measurements depends on the practicability of the respective calibration procedure. Due to necessary changes of the distance between used antennas or a precise positioning of calibration standards, the suitability of free space setups is limited. This contribution deals with a calibration technique for free space applications, which uses the change of the electrical length by means of small frequency variations. Thus, this technique enables free space calibrations without the necessity of antenna displacements. Furthermore, the bandwidth of this procedure is not limited due to ambiguities of mechanical displacements during the calibration procedure. Additionally, the presented calibration technique is based on the Thru-Line-Network (TLN) method. Hence, symmetrical and reciprocal measurement objects can be characterized within the calibration procedure.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87128590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259451
Yuandan Dong, T. Itoh
A novel C-band low phase noise dual-band oscillator using a reconfigurable cavity-backed complementary split-ring resonator (CSRR) is proposed and developed based on the substrate integrated waveguide (SIW) technology. The resonator consists of a PIN diode switch and a CSRR resonator embedded in an SIW cavity. It is able to provide two different resonance frequencies by selecting different diode modes. A switchable matching stub is used for matching each of the two states. Measured results show that the proposed oscillator is able to operate at 2.675 and 3.77 GHz, respectively, with a phase noise of 105.5 and 99.6 dBc/Hz at a 100 KHz offset.
{"title":"A dual-band oscillator with reconfigurable cavity-backed complementary split-ring resonator","authors":"Yuandan Dong, T. Itoh","doi":"10.1109/MWSYM.2012.6259451","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259451","url":null,"abstract":"A novel C-band low phase noise dual-band oscillator using a reconfigurable cavity-backed complementary split-ring resonator (CSRR) is proposed and developed based on the substrate integrated waveguide (SIW) technology. The resonator consists of a PIN diode switch and a CSRR resonator embedded in an SIW cavity. It is able to provide two different resonance frequencies by selecting different diode modes. A switchable matching stub is used for matching each of the two states. Measured results show that the proposed oscillator is able to operate at 2.675 and 3.77 GHz, respectively, with a phase noise of 105.5 and 99.6 dBc/Hz at a 100 KHz offset.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86478015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-17DOI: 10.1109/MWSYM.2012.6259672
Dohyuk Ha, Tse-Yu Lin, W. D. de Vries, Byungguk Kim, A. Chlebowski, S. John, P. Irazoqui, W. Chappell
This paper shows measurement of intraocular pressure (IOP) within a mouse eye. Three main challenges faced the development of a device for the measurement: the size of the mouse eye, the depth of the anterior chamber where the device will be implanted, and the maximum allowable incision size. These factors all limit the size of the device. In addition, a novel detection scheme is required which enables detection of changes in IOP with high resolution. This paper presents the fabrication process of an ultra-small size Parylene tag in which a micro-electromechanical systems (MEMS) capacitive pressure sensor is packaged with a self-expandable Nitinol antenna and a diode. From the device implanted inside the mouse eye, a resonance frequency shift of the third-order harmonic signal was detected with a sensitivity of approximately 1.5 MHz/mmHg at an 11.5 cm distance from the sensor as the pressure inside the mouse eye changed. This work thus shows the feasibility of IOP monitoring using the third order harmonic from a device implanted inside the mouse eye.
{"title":"A compact-size packaged third-order harmonic tag for intraocular pressure (IOP) monitoring inside a mouse eye","authors":"Dohyuk Ha, Tse-Yu Lin, W. D. de Vries, Byungguk Kim, A. Chlebowski, S. John, P. Irazoqui, W. Chappell","doi":"10.1109/MWSYM.2012.6259672","DOIUrl":"https://doi.org/10.1109/MWSYM.2012.6259672","url":null,"abstract":"This paper shows measurement of intraocular pressure (IOP) within a mouse eye. Three main challenges faced the development of a device for the measurement: the size of the mouse eye, the depth of the anterior chamber where the device will be implanted, and the maximum allowable incision size. These factors all limit the size of the device. In addition, a novel detection scheme is required which enables detection of changes in IOP with high resolution. This paper presents the fabrication process of an ultra-small size Parylene tag in which a micro-electromechanical systems (MEMS) capacitive pressure sensor is packaged with a self-expandable Nitinol antenna and a diode. From the device implanted inside the mouse eye, a resonance frequency shift of the third-order harmonic signal was detected with a sensitivity of approximately 1.5 MHz/mmHg at an 11.5 cm distance from the sensor as the pressure inside the mouse eye changed. This work thus shows the feasibility of IOP monitoring using the third order harmonic from a device implanted inside the mouse eye.","PeriodicalId":6385,"journal":{"name":"2012 IEEE/MTT-S International Microwave Symposium Digest","volume":"24 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82647000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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