Pub Date : 2016-03-01DOI: 10.1109/IEEE-IWS.2016.7585438
Wen-Ao Li, Zhihong Tu, Q. Chu
A differentially-fed dipole antenna with common-mode suppression and sharp-selectivity notched band for UWB application is proposed in this paper. The proposed antenna consists of a pair of differential ports, a printed dipole, and a stepped slot embedded in the ground which acts as a wideband bandpass filter and transmits the differential signals from the differential ports to the dipole antenna. Under the differential-mode operation, the stepped slot can be effectively excited by the feeding microstrip and differential signals can be transmitted to the dipole. However, under common-mode operation, the stepped slot would not be excited so that the common-mode suppression can be achieved. In order to achieve sharp-selectivity notch-band characteristic, quarter-wavelength slits are etched on the ground and half-wavelength stub is introduced beside the microstrip, respectively. As a result, a second-order notched band with sharp selectivity is obtained. The simulated results show that the proposed antenna obtains good common-mode suppression characteristic and a sharp-selectivity notched band from 5.1 to 6.0 GHz.
{"title":"Differential UWB-dipole antenna with common-mode suppression and sharp-selectivity notched band","authors":"Wen-Ao Li, Zhihong Tu, Q. Chu","doi":"10.1109/IEEE-IWS.2016.7585438","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2016.7585438","url":null,"abstract":"A differentially-fed dipole antenna with common-mode suppression and sharp-selectivity notched band for UWB application is proposed in this paper. The proposed antenna consists of a pair of differential ports, a printed dipole, and a stepped slot embedded in the ground which acts as a wideband bandpass filter and transmits the differential signals from the differential ports to the dipole antenna. Under the differential-mode operation, the stepped slot can be effectively excited by the feeding microstrip and differential signals can be transmitted to the dipole. However, under common-mode operation, the stepped slot would not be excited so that the common-mode suppression can be achieved. In order to achieve sharp-selectivity notch-band characteristic, quarter-wavelength slits are etched on the ground and half-wavelength stub is introduced beside the microstrip, respectively. As a result, a second-order notched band with sharp selectivity is obtained. The simulated results show that the proposed antenna obtains good common-mode suppression characteristic and a sharp-selectivity notched band from 5.1 to 6.0 GHz.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114935485","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 : 2016-03-01DOI: 10.1109/IEEE-IWS.2016.7585467
F. Rautschke, D. Maassen, Orkun Konc, G. Boeck
This paper deals with the design and comparison between 5th order waveguide (WG) and substrate integrated waveguide (SIW) filters for satcom applications, e.g. very small aperture terminals (VSAT). The filters are designed for the passband from 13.75 GHz to 14.5 GHz and realized using non-symmetrical inductive irises. Rogers RO4003c substrate was used for the SIW structure. An insertion loss (IL) of less than 0.8 dB within the desired bandwidth is achieved for the WG filter and 3.3 dB in case of the SIW filter.
{"title":"Comparison of conventional and substrate integrated waveguide filters for satellite communication","authors":"F. Rautschke, D. Maassen, Orkun Konc, G. Boeck","doi":"10.1109/IEEE-IWS.2016.7585467","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2016.7585467","url":null,"abstract":"This paper deals with the design and comparison between 5th order waveguide (WG) and substrate integrated waveguide (SIW) filters for satcom applications, e.g. very small aperture terminals (VSAT). The filters are designed for the passband from 13.75 GHz to 14.5 GHz and realized using non-symmetrical inductive irises. Rogers RO4003c substrate was used for the SIW structure. An insertion loss (IL) of less than 0.8 dB within the desired bandwidth is achieved for the WG filter and 3.3 dB in case of the SIW filter.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115551497","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 : 2016-03-01DOI: 10.1109/IEEE-IWS.2016.7912155
Zhihong Lin, Feng Ye, W. Qin, Xiaofei Cao, Yanchao Wang, Rongtao Hu, R. Yan, Yajie Qin, Ting Yi, Zhiliang Hong
A low-power, wireless, real-time, wearable healthcare system for monitoring bio-potential signals including ECG, EEG and EMG signal is proposed. The system consists of Analog Front End (AFE), Incremental EδADC and Short Range Device (SRD) Transceiver. All the ICs are implemented in 0.35μm CMOS technology and integrated on the printed circuit board (PCB). The AFE and the Incremental E/δADC consume less than 100μW and can be configured to various gains, bandwidths and sampling rates for best energy efficiency when capturing different ExG signals. Lithium-battery provides power for the system. Integrating with Huahong MCU, the system is capable of restoring the ExG signals at real time on TFTLCD after wireless communication, storing the ExG information in SD card, and transferring the ExG data to PC for analyzing it in MATLAB.
{"title":"A low-power, wireless, real-time, wearable healthcare system","authors":"Zhihong Lin, Feng Ye, W. Qin, Xiaofei Cao, Yanchao Wang, Rongtao Hu, R. Yan, Yajie Qin, Ting Yi, Zhiliang Hong","doi":"10.1109/IEEE-IWS.2016.7912155","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2016.7912155","url":null,"abstract":"A low-power, wireless, real-time, wearable healthcare system for monitoring bio-potential signals including ECG, EEG and EMG signal is proposed. The system consists of Analog Front End (AFE), Incremental EδADC and Short Range Device (SRD) Transceiver. All the ICs are implemented in 0.35μm CMOS technology and integrated on the printed circuit board (PCB). The AFE and the Incremental E/δADC consume less than 100μW and can be configured to various gains, bandwidths and sampling rates for best energy efficiency when capturing different ExG signals. Lithium-battery provides power for the system. Integrating with Huahong MCU, the system is capable of restoring the ExG signals at real time on TFTLCD after wireless communication, storing the ExG information in SD card, and transferring the ExG data to PC for analyzing it in MATLAB.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126091045","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 : 2016-03-01DOI: 10.1109/IEEE-IWS.2016.7585450
Chen Xu, F. Lina, Wu Xianfeng, He Chunjiu
This paper introduces a novel antipodal tapered slot antenna based on the ultra-wideband characteristics of life detection radar. The antenna adopts edge comb-structure to improve the radiation field and uses the feeding of modified micro-strip line to slot line to solve the impedance matching problem of ultra-wideband antenna. The antenna is fabricated on F4B high-frequency board with the thickness of 1.5mm, and the size of the antenna is only 150mm×135mm. The measured results show that VSWR is lower than 2 in the operation frequency band of 900MHz to 5GHz, and the antenna gain is greater than 20dBi. The measured radiation patterns on E-plane and H-plane agree well with the simulated results.
{"title":"Design of a novel ultra-wideband antenna applied for Life detecting","authors":"Chen Xu, F. Lina, Wu Xianfeng, He Chunjiu","doi":"10.1109/IEEE-IWS.2016.7585450","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2016.7585450","url":null,"abstract":"This paper introduces a novel antipodal tapered slot antenna based on the ultra-wideband characteristics of life detection radar. The antenna adopts edge comb-structure to improve the radiation field and uses the feeding of modified micro-strip line to slot line to solve the impedance matching problem of ultra-wideband antenna. The antenna is fabricated on F4B high-frequency board with the thickness of 1.5mm, and the size of the antenna is only 150mm×135mm. The measured results show that VSWR is lower than 2 in the operation frequency band of 900MHz to 5GHz, and the antenna gain is greater than 20dBi. The measured radiation patterns on E-plane and H-plane agree well with the simulated results.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115258937","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 : 1900-01-01DOI: 10.1109/ieee-iws.2016.7585402
J. Muñoz-Ferreras, Zhengyu Peng, Changzhi Li, R. Gómez‐García
Reconfigurable RF circuits are expected to become essential microwave components of next-generation wireless-communications and radar systems. In this paper, the usefulness of a tunable notch filter for interference mitigation is evaluated. In particular, the effects of an unintentional interference tone on the imaging performance of a coherent frequency-modulated-continuous-wave (FMCW) radar are assessed through simulation. The reported study serves to theoretically justify the operational benefits from the integration of reconfigurable notch filters into modern RF front-ends of coherent FMCW short-range radars. A specific experimental setup is also suggested for the practical verification of this analysis in a laboratory environment.
{"title":"Effects and mitigation of interference tones on coherent FMCW short-range radars","authors":"J. Muñoz-Ferreras, Zhengyu Peng, Changzhi Li, R. Gómez‐García","doi":"10.1109/ieee-iws.2016.7585402","DOIUrl":"https://doi.org/10.1109/ieee-iws.2016.7585402","url":null,"abstract":"Reconfigurable RF circuits are expected to become essential microwave components of next-generation wireless-communications and radar systems. In this paper, the usefulness of a tunable notch filter for interference mitigation is evaluated. In particular, the effects of an unintentional interference tone on the imaging performance of a coherent frequency-modulated-continuous-wave (FMCW) radar are assessed through simulation. The reported study serves to theoretically justify the operational benefits from the integration of reconfigurable notch filters into modern RF front-ends of coherent FMCW short-range radars. A specific experimental setup is also suggested for the practical verification of this analysis in a laboratory environment.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115436540","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 : 1900-01-01DOI: 10.1109/ieee-iws.2016.7585401
J. Muñoz-Ferreras, Zhengyu Peng, Changzhi Li, R. Gómez‐García
Reconfigurable RF circuits are expected to become essential microwave components of next-generation wireless-communications and radar systems. In this paper, the usefulness of a tunable notch filter for interference mitigation is evaluated. In particular, the effects of an unintentional interference tone on the imaging performance of a coherent frequency-modulated-continuous-wave (FMCW) radar are assessed through simulation. The reported study serves to theoretically justify the operational benefits from the integration of reconfigurable notch filters into modern RF front-ends of coherent FMCW short-range radars. A specific experimental setup is also suggested for the practical verification of this analysis in a laboratory environment.
{"title":"Effects and mitigation of interference tones on coherent FMCW short-range radars","authors":"J. Muñoz-Ferreras, Zhengyu Peng, Changzhi Li, R. Gómez‐García","doi":"10.1109/ieee-iws.2016.7585401","DOIUrl":"https://doi.org/10.1109/ieee-iws.2016.7585401","url":null,"abstract":"Reconfigurable RF circuits are expected to become essential microwave components of next-generation wireless-communications and radar systems. In this paper, the usefulness of a tunable notch filter for interference mitigation is evaluated. In particular, the effects of an unintentional interference tone on the imaging performance of a coherent frequency-modulated-continuous-wave (FMCW) radar are assessed through simulation. The reported study serves to theoretically justify the operational benefits from the integration of reconfigurable notch filters into modern RF front-ends of coherent FMCW short-range radars. A specific experimental setup is also suggested for the practical verification of this analysis in a laboratory environment.","PeriodicalId":185971,"journal":{"name":"2016 IEEE MTT-S International Wireless Symposium (IWS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556273","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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