Pub Date : 2017-06-04DOI: 10.1109/MWSYM.2017.8058703
D. Henry, J. Hester, H. Aubert, P. Pons, M. Tentzeris
This paper reports for the first time a long-range interrogation (> 50 meters) of wireless and batteryless humidity sensors combining a Van-Atta retrodirective array and a 3D beam scanning using a 24GHz Frequency-Modulated Continuous-Wave radar. Van-Atta cross-polarization properties, as well as the use of dedicated statistical estimators and Synthetic Aperture Radar technique allow the long-range measurement of the relative humidity at a distance of 58 meters. A measurement sensitivity of 0.2dB to 0.4dB per %RH was measured as a linear variation of the proposed estimator with a standard error of ±0.005dB.
{"title":"Long range wireless interrogation of passive humidity sensors using Van-Atta cross-polarization effect and 3D beam scanning analysis","authors":"D. Henry, J. Hester, H. Aubert, P. Pons, M. Tentzeris","doi":"10.1109/MWSYM.2017.8058703","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058703","url":null,"abstract":"This paper reports for the first time a long-range interrogation (> 50 meters) of wireless and batteryless humidity sensors combining a Van-Atta retrodirective array and a 3D beam scanning using a 24GHz Frequency-Modulated Continuous-Wave radar. Van-Atta cross-polarization properties, as well as the use of dedicated statistical estimators and Synthetic Aperture Radar technique allow the long-range measurement of the relative humidity at a distance of 58 meters. A measurement sensitivity of 0.2dB to 0.4dB per %RH was measured as a linear variation of the proposed estimator with a standard error of ±0.005dB.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"45 1","pages":"816-819"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76010381","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058574
Ahmed Kord, D. Sounas, A. Alú
In this paper, we present a differential magnetless circulator by combining two angular-momentum-biased single-ended circulators, each of which consists of three first-order bandstop LC filters connected in a delta topology and modulated in time with a phase difference of 120 deg between each other. Compared to a single-ended architecture, the differential one drastically reduces even-order intermodulation products, improves insertion loss, extends the bandwidth, and significantly decreases the required modulation frequency. We present the theory of such a circulator and validate it with simulated and measured results.
{"title":"Differential magnetless circulator using modulated bandstop filters","authors":"Ahmed Kord, D. Sounas, A. Alú","doi":"10.1109/MWSYM.2017.8058574","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058574","url":null,"abstract":"In this paper, we present a differential magnetless circulator by combining two angular-momentum-biased single-ended circulators, each of which consists of three first-order bandstop LC filters connected in a delta topology and modulated in time with a phase difference of 120 deg between each other. Compared to a single-ended architecture, the differential one drastically reduces even-order intermodulation products, improves insertion loss, extends the bandwidth, and significantly decreases the required modulation frequency. We present the theory of such a circulator and validate it with simulated and measured results.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"134 1","pages":"384-387"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77502462","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8059075
Chien-Chang Huang, Wei-Che Lin
This paper presents a radio transceiver architecture in mobile devices for coexistence of 4G-LTE and 5G systems, with fewer extra components and easier circuit implementations. The radio front-end is divided into two parts depending on the frequency bands, below 6 GHz or higher than 10 GHz even to millimeter-waves. Direct IQ modulation/demodulation blocks, baseband analog circuitries and frequency synthesizer are commonly used parts for both of low/high frequency operations where one-stage frequency up/down conversions are exploited for high frequency bands. Transmit/receive performance tests of a prototype using commercial-off-the-shelf components are demonstrated to validate the proposed radio transceiver design.
{"title":"A radio transceiver architecture for coexistence of 4G-LTE and 5G systems used in mobile devices","authors":"Chien-Chang Huang, Wei-Che Lin","doi":"10.1109/MWSYM.2017.8059075","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8059075","url":null,"abstract":"This paper presents a radio transceiver architecture in mobile devices for coexistence of 4G-LTE and 5G systems, with fewer extra components and easier circuit implementations. The radio front-end is divided into two parts depending on the frequency bands, below 6 GHz or higher than 10 GHz even to millimeter-waves. Direct IQ modulation/demodulation blocks, baseband analog circuitries and frequency synthesizer are commonly used parts for both of low/high frequency operations where one-stage frequency up/down conversions are exploited for high frequency bands. Transmit/receive performance tests of a prototype using commercial-off-the-shelf components are demonstrated to validate the proposed radio transceiver design.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"30 1","pages":"2056-2058"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79159329","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058831
Yuxiang Sun, B. Greet, D. Burkland, M. John, M. Razavi, A. Babakhani
We present a battery-less mm-sized wirelessly powered pacemaker microchip with on-chip antenna in 180nm CMOS process. The microchip harvests RF radiation from an external source in the X-band frequency, with the size of 4mm by 1mm. The in-vivo experiment is demonstrated successfully on a live pig heart. The pacemaker can be wirelessly powered with a distance of 2cm. It generates a stimulation pulse signal with a voltage magnitude of 1.3V. The wireless pacing testing was successfully demonstrated by changing the heart rhythm frequency from 1.67Hz to 2.87Hz.
{"title":"Wirelessly powered implantable pacemaker with on-chip antenna","authors":"Yuxiang Sun, B. Greet, D. Burkland, M. John, M. Razavi, A. Babakhani","doi":"10.1109/MWSYM.2017.8058831","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058831","url":null,"abstract":"We present a battery-less mm-sized wirelessly powered pacemaker microchip with on-chip antenna in 180nm CMOS process. The microchip harvests RF radiation from an external source in the X-band frequency, with the size of 4mm by 1mm. The in-vivo experiment is demonstrated successfully on a live pig heart. The pacemaker can be wirelessly powered with a distance of 2cm. It generates a stimulation pulse signal with a voltage magnitude of 1.3V. The wireless pacing testing was successfully demonstrated by changing the heart rhythm frequency from 1.67Hz to 2.87Hz.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"36 1","pages":"1242-1244"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75181167","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058594
Spencer B. Erekson, W. J. D. Johnson, D. Peroulis
An X-band radial power combiner based on an airline coax with 0.15 dB measured insertion loss, 8 dB minimum port-to-port isolation, 33% bandwidth, and the ability to handle kilowatt power levels is presented in this work. The design can readily be scaled to arbitrary frequencies or any number of ports. The methods used to select the parameters and optimize the design are presented. The models are validated by a 9-port X-band proof-of-concept combiner.
{"title":"Design of an airline coax radial power combiner with enhanced isolation","authors":"Spencer B. Erekson, W. J. D. Johnson, D. Peroulis","doi":"10.1109/MWSYM.2017.8058594","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058594","url":null,"abstract":"An X-band radial power combiner based on an airline coax with 0.15 dB measured insertion loss, 8 dB minimum port-to-port isolation, 33% bandwidth, and the ability to handle kilowatt power levels is presented in this work. The design can readily be scaled to arbitrary frequencies or any number of ports. The methods used to select the parameters and optimize the design are presented. The models are validated by a 9-port X-band proof-of-concept combiner.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"74 1","pages":"455-458"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79950145","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058684
G. Macchiarella, S. Tamiazzo, V. Verri
This paper presents a detailed approach to the design and dimensioning of coaxial filters with fully canonic elliptic response. In order get a compact configuration the extracted-pole in-line configuration with non-resonating nodes (NRN) is adopted. First the synthesis of a low-pass prototype is carried out and the generalized coupling coefficients together with the resonant frequencies are computed as outlined in the literature. A suitable de-normalized equivalent circuit is then derived with reference to the specific filter configuration here considered. Finally, the dimensioning of the structure is carried out suitably exploiting full wave simulations for imposing the parameters of the equivalent circuit obtained from the synthesis to the physical structure. The proposed methodology has been validated by the design and fabrication of two high selectivity filters to connect in cascade for realizing a band pass filter easily tunable both in center frequency and bandwidth.
{"title":"A design methodology for fully canonic NRN filters in coaxial technology","authors":"G. Macchiarella, S. Tamiazzo, V. Verri","doi":"10.1109/MWSYM.2017.8058684","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058684","url":null,"abstract":"This paper presents a detailed approach to the design and dimensioning of coaxial filters with fully canonic elliptic response. In order get a compact configuration the extracted-pole in-line configuration with non-resonating nodes (NRN) is adopted. First the synthesis of a low-pass prototype is carried out and the generalized coupling coefficients together with the resonant frequencies are computed as outlined in the literature. A suitable de-normalized equivalent circuit is then derived with reference to the specific filter configuration here considered. Finally, the dimensioning of the structure is carried out suitably exploiting full wave simulations for imposing the parameters of the equivalent circuit obtained from the synthesis to the physical structure. The proposed methodology has been validated by the design and fabrication of two high selectivity filters to connect in cascade for realizing a band pass filter easily tunable both in center frequency and bandwidth.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"9 1","pages":"748-751"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84197282","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8059027
K. Kibaroglu, M. Sayginer, Gabriel M. Rebeiz
This work presents a quad-core 28–32 GHz transmit/receive phased-array integrated circuit (IC) with flipchip packaging for 5G communication links. The IC consists of 4 Tx/Rx channels each with 6-bit phase and 14 dB amplitude control. The noise figure in the RX mode is 4.6 dB, the lowest reported to date to our best knowledge, and the output power in transmit mode is 10 dBm at P1dB. The power consumption is 105 mW and 200 mW in the RX and TX modes respectively, per channel. The chip is flipped on a low cost RF board with a 2×2 antenna array for a range of system-level measurements. The array has a measured EIRP of 24.5 dBm, and is used in a 1 meter communication link achieving 64-QAM 2.4 Gbps data rate with an EVM of 2.89%.
{"title":"A quad-core 28–32 GHz transmit/receive 5G phased-array IC with flip-chip packaging in SiGe BiCMOS","authors":"K. Kibaroglu, M. Sayginer, Gabriel M. Rebeiz","doi":"10.1109/MWSYM.2017.8059027","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8059027","url":null,"abstract":"This work presents a quad-core 28–32 GHz transmit/receive phased-array integrated circuit (IC) with flipchip packaging for 5G communication links. The IC consists of 4 Tx/Rx channels each with 6-bit phase and 14 dB amplitude control. The noise figure in the RX mode is 4.6 dB, the lowest reported to date to our best knowledge, and the output power in transmit mode is 10 dBm at P1dB. The power consumption is 105 mW and 200 mW in the RX and TX modes respectively, per channel. The chip is flipped on a low cost RF board with a 2×2 antenna array for a range of system-level measurements. The array has a measured EIRP of 24.5 dBm, and is used in a 1 meter communication link achieving 64-QAM 2.4 Gbps data rate with an EVM of 2.89%.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"58 1","pages":"1892-1894"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89297859","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058591
P. Rito, I. G. Líópez, A. Awny, A. Ulusoy, D. Kissinger
In this paper, a linear driver for optical modulators in a 0.13 μm SiGe:C BiCMOS technology with fT/fmax of 300/500 GHz is presented. The driver is implemented following a distributed amplifier topology in a differential manner. In a 50-Ω environment, the circuit delivers a maximum differential output amplitude of 4 Vpp, featuring a small-signal gain of 13 dB and 3-dB bandwidth of 90 GHz. Time-domain measurements using OOK (up to 56 Gb/s) and PAM-4 (at 30Gbaud) are performed, demonstrating the maximum output swing and linearity of the driver. The output power to power dissipation ratio is 3.6%. To the best knowledge of the authors, this is the first time a linear driver for optical modulators demonstrates such bandwidth.
{"title":"A DC-90 GHz 4-Vpp differential linear driver in a 0.13 μm SiGe:C BiCMOS technology for optical modulators","authors":"P. Rito, I. G. Líópez, A. Awny, A. Ulusoy, D. Kissinger","doi":"10.1109/MWSYM.2017.8058591","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058591","url":null,"abstract":"In this paper, a linear driver for optical modulators in a 0.13 μm SiGe:C BiCMOS technology with fT/fmax of 300/500 GHz is presented. The driver is implemented following a distributed amplifier topology in a differential manner. In a 50-Ω environment, the circuit delivers a maximum differential output amplitude of 4 Vpp, featuring a small-signal gain of 13 dB and 3-dB bandwidth of 90 GHz. Time-domain measurements using OOK (up to 56 Gb/s) and PAM-4 (at 30Gbaud) are performed, demonstrating the maximum output swing and linearity of the driver. The output power to power dissipation ratio is 3.6%. To the best knowledge of the authors, this is the first time a linear driver for optical modulators demonstrates such bandwidth.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"6 1","pages":"439-442"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79751774","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058773
Masaya Tamura, Daigo Furusu, Ippei Takano
This paper presents a novel wireless power and information transfer (WPIT) in a closed space utilizing frequency selected surfaces (FSSs). The framework of a greenhouse or a building can be considered as the FSSs. Therefore, the frequency of the power provided to the sensors can be confined inside the frame-work and a communication frequency to the sensor can be transmitted and received from the outside. The concept using a metal mesh box with a shelf is demonstrated. First, it is confirmed that the power transfer frequency can be confined inside the box by S-parameters from port 1 to each received port and the electric field standing wave in the box. Then, it is demonstrated that the power can be transferred to the Line-Of-Sight (LOS) and Non-Line-Of-Sight (NLOS) sensors in the metal mesh box and the sensing data can be received outside the box.
{"title":"Wireless power and information transfer in closed space utilizing frequency selected surfaces","authors":"Masaya Tamura, Daigo Furusu, Ippei Takano","doi":"10.1109/MWSYM.2017.8058773","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058773","url":null,"abstract":"This paper presents a novel wireless power and information transfer (WPIT) in a closed space utilizing frequency selected surfaces (FSSs). The framework of a greenhouse or a building can be considered as the FSSs. Therefore, the frequency of the power provided to the sensors can be confined inside the frame-work and a communication frequency to the sensor can be transmitted and received from the outside. The concept using a metal mesh box with a shelf is demonstrated. First, it is confirmed that the power transfer frequency can be confined inside the box by S-parameters from port 1 to each received port and the electric field standing wave in the box. Then, it is demonstrated that the power can be transferred to the Line-Of-Sight (LOS) and Non-Line-Of-Sight (NLOS) sensors in the metal mesh box and the sensing data can be received outside the box.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"28 1","pages":"1046-1049"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87400051","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 : 2017-06-04DOI: 10.1109/MWSYM.2017.8058579
M. Maasch, B. G. P. Evaristo, Mario Mueh, C. Damm
An artificial gradient-index lens for phase correction of a horn antenna in the Ka-band is presented. By introducing a gradient of the geometric features in the single layer fishnet unit cell, a phase variation between −180 and +180 degress can be obtained. The relation between the geometric dimensions, phase- and amplitude distribution is presented. Furthermore, phase-correction and resulting improved radiation pattern is demonstrated at 27.5 GHz and evaluated by nearfield measurements making the presented single layer fishnet a good candidate for artificial lenses with low weight and low fabrication costs.
{"title":"Artificial gradient-index lens based on single unit cell layer fishnet metamaterial for phase correction of a horn antenna","authors":"M. Maasch, B. G. P. Evaristo, Mario Mueh, C. Damm","doi":"10.1109/MWSYM.2017.8058579","DOIUrl":"https://doi.org/10.1109/MWSYM.2017.8058579","url":null,"abstract":"An artificial gradient-index lens for phase correction of a horn antenna in the Ka-band is presented. By introducing a gradient of the geometric features in the single layer fishnet unit cell, a phase variation between −180 and +180 degress can be obtained. The relation between the geometric dimensions, phase- and amplitude distribution is presented. Furthermore, phase-correction and resulting improved radiation pattern is demonstrated at 27.5 GHz and evaluated by nearfield measurements making the presented single layer fishnet a good candidate for artificial lenses with low weight and low fabrication costs.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"62 1","pages":"402-404"},"PeriodicalIF":0.0,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88865658","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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