Pub Date : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8073200
K. Wei, Jian-ying Li, R. Xu, Guangwei Yang
This paper presents s new circularly polarized (CP) omnidirectional microstrip antenna array. The designed antenna array has back-to-back structure, four series-fed patch antenna elements on each side. The resonant bandwidth of this array is about 7.4% with center frequency 17.5 GHz. The antenna array has CP gain variation in the main lobe plane is around ±2.5 dBic, axial ratio (AR) in the main lobe plane is less than 3 dB, peak CP gain is 9.36 dBic and half-power beam-width is only 15 deg.
{"title":"Circularly polarized omnidirectional microstrip antenna array","authors":"K. Wei, Jian-ying Li, R. Xu, Guangwei Yang","doi":"10.1109/APUSNCURSINRSM.2017.8073200","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073200","url":null,"abstract":"This paper presents s new circularly polarized (CP) omnidirectional microstrip antenna array. The designed antenna array has back-to-back structure, four series-fed patch antenna elements on each side. The resonant bandwidth of this array is about 7.4% with center frequency 17.5 GHz. The antenna array has CP gain variation in the main lobe plane is around ±2.5 dBic, axial ratio (AR) in the main lobe plane is less than 3 dB, peak CP gain is 9.36 dBic and half-power beam-width is only 15 deg.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125525842","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072149
R. Vilkhu, B. DeLong, A. Kiourti, Piya Das Ghatak, Shomita S Mathew-Steiner, C. Sen
We present a new method of power harvesting for wearable electronics that is based on epidermal electrochemical dressings dampened by a bodily exudate (sweat, wound exudate, etc.). Generation of DC power is achieved via an electrochemical process that enables transfer of electrons from silver-to zinc-printed dots using the bodily exudate as an electrolyte. Contrary to existing power harvesting methods (e.g., RF or solar), the proposed method is fully-flexible and does not require bulky circuits or any sort of rigid components. Proof-of-concept results are presented, demonstrating: a) unobtrusive DC power generation in the μW range, and b) a batteryless epidermal sensor that identifies open wounds underneath its surface. Overall, this technology is expected to be of utmost significance for powering wearable electronics in military, healthcare, sports, and emergency applications, among others.
{"title":"Power harvesting for wearable electronics using fabric electrochemistry","authors":"R. Vilkhu, B. DeLong, A. Kiourti, Piya Das Ghatak, Shomita S Mathew-Steiner, C. Sen","doi":"10.1109/APUSNCURSINRSM.2017.8072149","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072149","url":null,"abstract":"We present a new method of power harvesting for wearable electronics that is based on epidermal electrochemical dressings dampened by a bodily exudate (sweat, wound exudate, etc.). Generation of DC power is achieved via an electrochemical process that enables transfer of electrons from silver-to zinc-printed dots using the bodily exudate as an electrolyte. Contrary to existing power harvesting methods (e.g., RF or solar), the proposed method is fully-flexible and does not require bulky circuits or any sort of rigid components. Proof-of-concept results are presented, demonstrating: a) unobtrusive DC power generation in the μW range, and b) a batteryless epidermal sensor that identifies open wounds underneath its surface. Overall, this technology is expected to be of utmost significance for powering wearable electronics in military, healthcare, sports, and emergency applications, among others.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"34 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124977452","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072943
G. Oliveri, P. Rocca, L. Poli, G. Gottardi, N. Anselmi, M. Salucci, R. Lombardi, M. Chuan, M. Mattivi, P. Vinetti, F. Morgia, A. Massa
An innovative iterative scheme which combines parametric optimization techniques and convex programming strategies is proposed as a design tool to assess feasibility and limitations of next generation phased array architectures for 5G backhauling applications. The proposed design technique is aimed at (i) identifying the lattice geometry and minimum array aperture (complying with bandwidth, directivity, and steering range requirements) and (ii) computing the optimal excitation coefficients (to satisfy sidelobe constraints) for a 5G backhauling scenario. Preliminary numerical examples are shown to validate the proposed methodological approach and architectures in 5G backhauling scenarios and to deduce relevant applicative guidelines.
{"title":"Innovative array architectures for 5G communications","authors":"G. Oliveri, P. Rocca, L. Poli, G. Gottardi, N. Anselmi, M. Salucci, R. Lombardi, M. Chuan, M. Mattivi, P. Vinetti, F. Morgia, A. Massa","doi":"10.1109/APUSNCURSINRSM.2017.8072943","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072943","url":null,"abstract":"An innovative iterative scheme which combines parametric optimization techniques and convex programming strategies is proposed as a design tool to assess feasibility and limitations of next generation phased array architectures for 5G backhauling applications. The proposed design technique is aimed at (i) identifying the lattice geometry and minimum array aperture (complying with bandwidth, directivity, and steering range requirements) and (ii) computing the optimal excitation coefficients (to satisfy sidelobe constraints) for a 5G backhauling scenario. Preliminary numerical examples are shown to validate the proposed methodological approach and architectures in 5G backhauling scenarios and to deduce relevant applicative guidelines.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126263507","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072129
R. Xu, Jianying Li, Guangwei Yang
A new method to achieve dual-band dual-sense circularly polarized (CP) antenna is studied in this paper. This antenna is evolved from a simple linear polarized bow-tie dipole antenna, and the dual-band dual-sense CP waves are generated by rotational symmetry geometry. The measured impedance bandwidth (IBW) for S11>−10 dB is 97.4% (1.96∼5.68 GHz). The measured 3-dB axial ratio bandwidths (ARBWs) are 9.2% (2.29∼2.51 GHz) with right-hand circular polarization (RHCP) and 12.3% (4.96∼5.61 GHz) with left-hand circular polarization (LHCP). Furthermore, the radiation patterns perform very well, and the antenna peak gain within the lower and upper ARBWs are 2.0 and 4.6 dBic, respectively.
{"title":"A novel dual-band dual-sense circulalry polarized antenna based on simple printed dipole structure","authors":"R. Xu, Jianying Li, Guangwei Yang","doi":"10.1109/APUSNCURSINRSM.2017.8072129","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072129","url":null,"abstract":"A new method to achieve dual-band dual-sense circularly polarized (CP) antenna is studied in this paper. This antenna is evolved from a simple linear polarized bow-tie dipole antenna, and the dual-band dual-sense CP waves are generated by rotational symmetry geometry. The measured impedance bandwidth (IBW) for S11>−10 dB is 97.4% (1.96∼5.68 GHz). The measured 3-dB axial ratio bandwidths (ARBWs) are 9.2% (2.29∼2.51 GHz) with right-hand circular polarization (RHCP) and 12.3% (4.96∼5.61 GHz) with left-hand circular polarization (LHCP). Furthermore, the radiation patterns perform very well, and the antenna peak gain within the lower and upper ARBWs are 2.0 and 4.6 dBic, respectively.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684244","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072643
A. Narbudowicz, M. Ammann, D. Heberling
An electrically small pattern reconfigurable antenna is proposed. It allows adjustment of the radiation pattern by applying a phase shift between its two ports. The structure is a cylinder with λ/5 diameter. Simulated results show good operation at 2.44 GHz and three different radiation patterns are demonstrated by applying three different phase shifts. The antenna's principles of operation and limitations are explained based on the theory of spherical modes.
{"title":"Electrically small antenna with switchless pattern reconfiguration","authors":"A. Narbudowicz, M. Ammann, D. Heberling","doi":"10.1109/APUSNCURSINRSM.2017.8072643","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072643","url":null,"abstract":"An electrically small pattern reconfigurable antenna is proposed. It allows adjustment of the radiation pattern by applying a phase shift between its two ports. The structure is a cylinder with λ/5 diameter. Simulated results show good operation at 2.44 GHz and three different radiation patterns are demonstrated by applying three different phase shifts. The antenna's principles of operation and limitations are explained based on the theory of spherical modes.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"116 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121263212","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8073161
T. Mitha, M. Pour
The effects of varying the size of the ground plane of a rectangular microstrip antenna, which can excite TE modes, are investigated in this paper. The magnetic conducting patch and ground planes replace the electric conducting patch and ground plane. The antenna is designed following the conventional design steps by applying duality theorem to it in order to excite the TE modes. An L-probe feed excites the patch antenna. Antenna characteristics such as impedance bandwidth and radiation beamwidths are investigated by varying the ground plane size.
{"title":"Effect of ground plane size on a rectangular microstrip patch antenna based on te modes supported by perfect magnetic conducting surface","authors":"T. Mitha, M. Pour","doi":"10.1109/APUSNCURSINRSM.2017.8073161","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073161","url":null,"abstract":"The effects of varying the size of the ground plane of a rectangular microstrip antenna, which can excite TE modes, are investigated in this paper. The magnetic conducting patch and ground planes replace the electric conducting patch and ground plane. The antenna is designed following the conventional design steps by applying duality theorem to it in order to excite the TE modes. An L-probe feed excites the patch antenna. Antenna characteristics such as impedance bandwidth and radiation beamwidths are investigated by varying the ground plane size.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129115720","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8073366
Jin Li, Cheng Guo, Jun Xu, Lijian Mao
This paper presents a lightweight Ka-band slotted rectangular waveguide bandpass filter that is fabricated using a fast and low-cost stereolithography-based 3-D printing technique. The filter is printed with a low-density ceramic-filled resin that features a much higher mechanical strength and a much better thermal handling capability than these properties of ordinary resin-based 3-D printing materials. The ceramic-resin-based filter exhibits a measured insertion loss of 0.23–0.5 dB in its passband 30.1–33.7 GHz, and a weight around 39% smaller than that of the filter with the same geometry but made from aluminum.
{"title":"Lightweight low-cost Ka-band 3-D printed slotted rectangular waveguide bandpass filters","authors":"Jin Li, Cheng Guo, Jun Xu, Lijian Mao","doi":"10.1109/APUSNCURSINRSM.2017.8073366","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073366","url":null,"abstract":"This paper presents a lightweight Ka-band slotted rectangular waveguide bandpass filter that is fabricated using a fast and low-cost stereolithography-based 3-D printing technique. The filter is printed with a low-density ceramic-filled resin that features a much higher mechanical strength and a much better thermal handling capability than these properties of ordinary resin-based 3-D printing materials. The ceramic-resin-based filter exhibits a measured insertion loss of 0.23–0.5 dB in its passband 30.1–33.7 GHz, and a weight around 39% smaller than that of the filter with the same geometry but made from aluminum.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"45 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131551912","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072578
Parinaz Naseri, C. Fernandes, S. Matos, Jorge R. Costa
In this paper, we propose a dual-band linear-to-circular polarization converter element based on the antenna-filter-antenna (AFA) structure. The traits of this cell include thin three-layer structure and ability to convert a linear incident wave to two orthogonal circular polarizations at two non-adjacent frequency bands. This combination of physical and electrical specifications makes this cell a novel solution. An example of this cell suitable for satellite communication is designed to operate at 20GHz and 30GHz (satellite Ka-band) with 4% and 8% bandwidth, respectively.
{"title":"Antenna-filter-antenna-based cell for linear-to-circular polarizer transmit-array","authors":"Parinaz Naseri, C. Fernandes, S. Matos, Jorge R. Costa","doi":"10.1109/APUSNCURSINRSM.2017.8072578","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072578","url":null,"abstract":"In this paper, we propose a dual-band linear-to-circular polarization converter element based on the antenna-filter-antenna (AFA) structure. The traits of this cell include thin three-layer structure and ability to convert a linear incident wave to two orthogonal circular polarizations at two non-adjacent frequency bands. This combination of physical and electrical specifications makes this cell a novel solution. An example of this cell suitable for satellite communication is designed to operate at 20GHz and 30GHz (satellite Ka-band) with 4% and 8% bandwidth, respectively.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131048817","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072147
Mehrdad Nosrati, Negar Tavassolian
This paper presents an experimental study to evaluate the effects of antenna radiation parameters on the detection capabilities of a 2.4 GHz Doppler radar used in non-contact vibrometer systems. Four different types of patch antennas and array configurations are implemented on both the transmitter and receiver sides of the system. Extensive experiments using a linear actuator and a metal plate are performed and several interesting and nontrivial results are reported. The optimized antenna configuration is shown to result in the highest signal quality and system performance.
{"title":"Experimental study of antenna characteristic effects on doppler radar performance","authors":"Mehrdad Nosrati, Negar Tavassolian","doi":"10.1109/APUSNCURSINRSM.2017.8072147","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072147","url":null,"abstract":"This paper presents an experimental study to evaluate the effects of antenna radiation parameters on the detection capabilities of a 2.4 GHz Doppler radar used in non-contact vibrometer systems. Four different types of patch antennas and array configurations are implemented on both the transmitter and receiver sides of the system. Extensive experiments using a linear actuator and a metal plate are performed and several interesting and nontrivial results are reported. The optimized antenna configuration is shown to result in the highest signal quality and system performance.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134274673","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 : 2017-07-09DOI: 10.1109/APUSNCURSINRSM.2017.8072361
V. Franchina, A. Michel, P. Nepa, R. Parolari, I. Moro, A. P. Filisan, D. Zamberlan
A novel compact 3D antenna operating at LTE, GSM and UMTS frequency bands (790–2690 MHz) is proposed for vehicular applications. The antenna consists of a metal-sheet properly cut and shaped to fit an overall volume of 50×50×30 mm3. A Planar Inverted-F Antenna is designed to cover the lower frequency band (below 1GHz), while an integrated folded monopole adds higher frequency resonances. An elliptical-shape pin is connected to a 50Ω input port to improve impedance matching, mainly at the higher frequencies. Preliminary numerical simulations in terms of reflection coefficient and gain are here presented and discussed.
{"title":"A 3D LTE antenna for vehicular applications","authors":"V. Franchina, A. Michel, P. Nepa, R. Parolari, I. Moro, A. P. Filisan, D. Zamberlan","doi":"10.1109/APUSNCURSINRSM.2017.8072361","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072361","url":null,"abstract":"A novel compact 3D antenna operating at LTE, GSM and UMTS frequency bands (790–2690 MHz) is proposed for vehicular applications. The antenna consists of a metal-sheet properly cut and shaped to fit an overall volume of 50×50×30 mm3. A Planar Inverted-F Antenna is designed to cover the lower frequency band (below 1GHz), while an integrated folded monopole adds higher frequency resonances. An elliptical-shape pin is connected to a 50Ω input port to improve impedance matching, mainly at the higher frequencies. Preliminary numerical simulations in terms of reflection coefficient and gain are here presented and discussed.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123953642","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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