Pub Date : 2022-09-05DOI: 10.1109/APWC49427.2022.9900025
T. Fujimoto, Masaki Sugimoto, Chai-Eu Guan
In this paper, the reduction of the size of antipodal Vivaldi antenna and the improvement of the gain are discussed. First, the miniaturization of antipodal Vivaldi antenna is achieved by increasing the size of the ground plane and designing the two radiation elements asymmetrically. Next, in order to improve the gain, the small rectangular elements are installed in front of the antenna. Moreover, to achieve the uniform gain level, one rectangular element and one L-shaped element are installed at the area between the small rectangular elements. The impedance bandwidth of the antenna designed by simulation is 95.1%. The minimum and maximum absolute gains are 2.0dBi and 4.7dBi. The width of the antenna is 0.44 λL (λL. is a wavelength at the lowest frequency). The proposed antenna is suitable to element of Array antenna.
{"title":"Improvement of gain in compact antipodal Vivaldi antenna","authors":"T. Fujimoto, Masaki Sugimoto, Chai-Eu Guan","doi":"10.1109/APWC49427.2022.9900025","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9900025","url":null,"abstract":"In this paper, the reduction of the size of antipodal Vivaldi antenna and the improvement of the gain are discussed. First, the miniaturization of antipodal Vivaldi antenna is achieved by increasing the size of the ground plane and designing the two radiation elements asymmetrically. Next, in order to improve the gain, the small rectangular elements are installed in front of the antenna. Moreover, to achieve the uniform gain level, one rectangular element and one L-shaped element are installed at the area between the small rectangular elements. The impedance bandwidth of the antenna designed by simulation is 95.1%. The minimum and maximum absolute gains are 2.0dBi and 4.7dBi. The width of the antenna is 0.44 λL (λL. is a wavelength at the lowest frequency). The proposed antenna is suitable to element of Array antenna.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115421636","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 : 2022-09-05DOI: 10.1109/apwc49427.2022.9899949
Qingli Lin, M. Tang, R. Ziolkowski
A compact, wideband, circularly polarized (CP) dipole antenna is presented. The antenna consists of a directly driven, crossed Egyptian axe dipole (EAD) antenna stacked seamlessly in parallel with an inductive parasitic grid array metasurface within a circular package. The grid array structure is introduced to collaborate with the EAD antenna in producing overlapping resonances to achieve wideband CP radiation. The simulated impedance bandwidth, where |S11|< –10 dB, is from 1.58 to 2.06 GHz (26.3%). The 3-dB AR bandwidth is from 1.67 to 2.08 GHz (21.8%). The consequent overlapping bandwidth is from 1.67 to 2.06 GHz (20.9%). The total dimensions of this very compact, low profile antenna are $pi {} times {}{left({0.19{{{lambda }}_0}}right)^2} times {}0.0014{{{lambda }}_0} = {}1.59{} times {}{10^{ - 4}}{{{lambda }}_0}^3$, where λ0 is the wavelength of the lower bound frequency, 1.67 GHz. Moreover, the antenna radiates bidirectional electromagnetic fields with high radiation efficiency across the entire overlapping bandwidth.
提出了一种紧凑的宽带圆极化偶极子天线。该天线由直接驱动的交叉埃及斧偶极子(EAD)天线与圆形封装内的感应寄生网格阵列超表面无缝并联堆叠而成。引入网格阵列结构与EAD天线协同产生重叠共振，实现宽带CP辐射。模拟阻抗带宽为1.58 ～ 2.06 GHz (26.3 GHz)，其中|S11|< -10 dB%). The 3-dB AR bandwidth is from 1.67 to 2.08 GHz (21.8%). The consequent overlapping bandwidth is from 1.67 to 2.06 GHz (20.9%). The total dimensions of this very compact, low profile antenna are $pi {} times {}{left({0.19{{{lambda }}_0}}right)^2} times {}0.0014{{{lambda }}_0} = {}1.59{} times {}{10^{ - 4}}{{{lambda }}_0}^3$, where λ0 is the wavelength of the lower bound frequency, 1.67 GHz. Moreover, the antenna radiates bidirectional electromagnetic fields with high radiation efficiency across the entire overlapping bandwidth.
{"title":"Compact, Wideband, Circularly Polarized, Inductive Grid-Array Metasurface Antenna","authors":"Qingli Lin, M. Tang, R. Ziolkowski","doi":"10.1109/apwc49427.2022.9899949","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9899949","url":null,"abstract":"A compact, wideband, circularly polarized (CP) dipole antenna is presented. The antenna consists of a directly driven, crossed Egyptian axe dipole (EAD) antenna stacked seamlessly in parallel with an inductive parasitic grid array metasurface within a circular package. The grid array structure is introduced to collaborate with the EAD antenna in producing overlapping resonances to achieve wideband CP radiation. The simulated impedance bandwidth, where |S11|< –10 dB, is from 1.58 to 2.06 GHz (26.3%). The 3-dB AR bandwidth is from 1.67 to 2.08 GHz (21.8%). The consequent overlapping bandwidth is from 1.67 to 2.06 GHz (20.9%). The total dimensions of this very compact, low profile antenna are $pi {} times {}{left({0.19{{{lambda }}_0}}right)^2} times {}0.0014{{{lambda }}_0} = {}1.59{} times {}{10^{ - 4}}{{{lambda }}_0}^3$, where λ0 is the wavelength of the lower bound frequency, 1.67 GHz. Moreover, the antenna radiates bidirectional electromagnetic fields with high radiation efficiency across the entire overlapping bandwidth.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131415230","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9899974
Yuanjun Shen, K. Tong, Kai‐Kit Wong
In this paper, an antenna design that combines surface wave and fluidic reconflgurable techniques was presented. The antenna operates in a wide frequency range from 23 to 38 GHz, which covers the Very High 5G Frequency band in the US, Europe, China, Japan, and Korea. In this design, only one RF input port is needed to achieve diversity when compared with the conventional multiple RF input ports approaches. From the simulation results, the proposed antenna design could change its radiation pattern based on the position of the fluid radiator. Such radiation pattern diversity feature can deal with channel interference issues.
{"title":"Radiation Pattern Diversified Single-Fluid-Channel Surface-Wave Antenna for Mobile Communications","authors":"Yuanjun Shen, K. Tong, Kai‐Kit Wong","doi":"10.1109/APWC49427.2022.9899974","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899974","url":null,"abstract":"In this paper, an antenna design that combines surface wave and fluidic reconflgurable techniques was presented. The antenna operates in a wide frequency range from 23 to 38 GHz, which covers the Very High 5G Frequency band in the US, Europe, China, Japan, and Korea. In this design, only one RF input port is needed to achieve diversity when compared with the conventional multiple RF input ports approaches. From the simulation results, the proposed antenna design could change its radiation pattern based on the position of the fluid radiator. Such radiation pattern diversity feature can deal with channel interference issues.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134001940","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 : 2022-09-05DOI: 10.1109/apwc49427.2022.9900057
S. Makino, Keito Yokoe, Michinori Yoneda
The Meta-surface inspired Antenna Chip developed by KIT EOE Laboratory (MACKEY) [1] is an antenna designed using the AMC technology. It is an electrically small antenna that is sufficiently robust to metal objects.
{"title":"Feasibility study of circularly polarized MACKEY","authors":"S. Makino, Keito Yokoe, Michinori Yoneda","doi":"10.1109/apwc49427.2022.9900057","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9900057","url":null,"abstract":"The Meta-surface inspired Antenna Chip developed by KIT EOE Laboratory (MACKEY) [1] is an antenna designed using the AMC technology. It is an electrically small antenna that is sufficiently robust to metal objects.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"25 11-12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127182110","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9899896
V. Rampa, S. Savazzi, M. d'Amico
Device-Free Localization (DFL) techniques are able to detect and localize people that do not need to wear any electronic devices. DFL systems, based on Radio Frequency (RF) nodes, employ a network of radio devices, typically equipped with a single antenna, that measure the attenuation introduced by the bodies located inside the monitored area to estimate their positions. To this aim, several physical, statistical and electromagnetic (EM) models have been introduced in the literature to relate the body positions to the RF signals received by the nodes. This paper develops an EM body model suitable for application to DFL systems relying on devices equipped with multiple antennas. In particular, the proposed EM body model describes the multi-link geometry found in array processing scenarios. The array-based body model, based on the scalar diffraction theory, is compared against the results obtained using an EM simulator to validate its prediction capabilities. The proposed model paves the way for a wider use of multi-antenna systems and novel beamforming algorithms for DFL array-based applications.
{"title":"Electromagnetic Models for Device-Free Radio Localization with Antenna Arrays","authors":"V. Rampa, S. Savazzi, M. d'Amico","doi":"10.1109/APWC49427.2022.9899896","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899896","url":null,"abstract":"Device-Free Localization (DFL) techniques are able to detect and localize people that do not need to wear any electronic devices. DFL systems, based on Radio Frequency (RF) nodes, employ a network of radio devices, typically equipped with a single antenna, that measure the attenuation introduced by the bodies located inside the monitored area to estimate their positions. To this aim, several physical, statistical and electromagnetic (EM) models have been introduced in the literature to relate the body positions to the RF signals received by the nodes. This paper develops an EM body model suitable for application to DFL systems relying on devices equipped with multiple antennas. In particular, the proposed EM body model describes the multi-link geometry found in array processing scenarios. The array-based body model, based on the scalar diffraction theory, is compared against the results obtained using an EM simulator to validate its prediction capabilities. The proposed model paves the way for a wider use of multi-antenna systems and novel beamforming algorithms for DFL array-based applications.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129578241","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9899947
Hao Qin, Xingqi Zhang
Radio wave propagation modeling in tunnels plays an important role in the deployment of modern train communication systems. The parabolic equation method has proven to be a powerful numerical technique for propagation modeling in long guiding structures. However, its computational efficiency is significantly compromised at millimeter-wave frequencies. This paper presents a split-step Fourier transform based parabolic equation model, which can achieve superior performance at the millimeter-wave bands. Numerical results are validated against analytical solutions in a waveguide example, as well as experimental measurements in an actual tunnel.
{"title":"Modeling of Millimeter-Wave Propagation in Tunnels with Split-Step Parabolic Equation Method","authors":"Hao Qin, Xingqi Zhang","doi":"10.1109/APWC49427.2022.9899947","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899947","url":null,"abstract":"Radio wave propagation modeling in tunnels plays an important role in the deployment of modern train communication systems. The parabolic equation method has proven to be a powerful numerical technique for propagation modeling in long guiding structures. However, its computational efficiency is significantly compromised at millimeter-wave frequencies. This paper presents a split-step Fourier transform based parabolic equation model, which can achieve superior performance at the millimeter-wave bands. Numerical results are validated against analytical solutions in a waveguide example, as well as experimental measurements in an actual tunnel.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133211889","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 : 2022-09-05DOI: 10.1109/apwc49427.2022.9900006
T. Fukusako, U. Purevdorj, R. Kuse
This talk presents bandwidth enhancement technique of axial ratio (AR) in 1 -point-fed circularly polarized (CP) microstrip antennas using metasurface (MS). In these structures, MSs consisting of a rectangular unit cell have been used for widening the impedance bandwidth in addition to the AR bandwidth. The author called this structure artificial ground structure (AGS) for the dual purpose. The AGS has been installed underneath the patch antenna with two truncated corners, and the substrates have a relative permittivity of εr = 2.2 and loss tangent of tan δ = 0.001 (ROGERS RT/Duroid 5880). The AGS has the function of an AMC for expanding the -10-dB S11 bandwidth. Also, the AGS can convert the incident wave of linear polarization (LP) or elliptical polarization (EP) to CP reflected wave. This mechanism can extend the AR bandwidth. However, this expansion is sometimes limited by resonances in related to the outer circumference of the MS structure. If the circumference is rectangular, that is the dimension along x is different from that along y, an extra difference of phase causes in x- and y- components of the radiated field resulting in deteriorated AR.
{"title":"Axial Ratio Extension of Circularly Polarized Patch Antennas using Diamond-shaped Metasurface","authors":"T. Fukusako, U. Purevdorj, R. Kuse","doi":"10.1109/apwc49427.2022.9900006","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9900006","url":null,"abstract":"This talk presents bandwidth enhancement technique of axial ratio (AR) in 1 -point-fed circularly polarized (CP) microstrip antennas using metasurface (MS). In these structures, MSs consisting of a rectangular unit cell have been used for widening the impedance bandwidth in addition to the AR bandwidth. The author called this structure artificial ground structure (AGS) for the dual purpose. The AGS has been installed underneath the patch antenna with two truncated corners, and the substrates have a relative permittivity of εr = 2.2 and loss tangent of tan δ = 0.001 (ROGERS RT/Duroid 5880). The AGS has the function of an AMC for expanding the -10-dB S11 bandwidth. Also, the AGS can convert the incident wave of linear polarization (LP) or elliptical polarization (EP) to CP reflected wave. This mechanism can extend the AR bandwidth. However, this expansion is sometimes limited by resonances in related to the outer circumference of the MS structure. If the circumference is rectangular, that is the dimension along x is different from that along y, an extra difference of phase causes in x- and y- components of the radiated field resulting in deteriorated AR.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127693979","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9899874
D. Pouhè, Alexander Feldberg
This paper presents a compact four-arm spiral antenna, which may be used in direction-finding applications but also mobile communication systems. The antenna is fed sequentially at its outside-ends using a sequential phase network embedded in grounded multilayer dielectric media. Sequential rotation is applied to generate the axial mode M1 but also the conical mode M2 in the same frequency band. The antenna exhibits good radiation characteristics in the frequency band of interest
{"title":"An Outer End-Fed Compact Four-Arm Spiral Antenna","authors":"D. Pouhè, Alexander Feldberg","doi":"10.1109/APWC49427.2022.9899874","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899874","url":null,"abstract":"This paper presents a compact four-arm spiral antenna, which may be used in direction-finding applications but also mobile communication systems. The antenna is fed sequentially at its outside-ends using a sequential phase network embedded in grounded multilayer dielectric media. Sequential rotation is applied to generate the axial mode M1 but also the conical mode M2 in the same frequency band. The antenna exhibits good radiation characteristics in the frequency band of interest","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"281 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131558388","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9900052
M. U. Tahir, U. Rafique, M. M. Ahmed, Mohammad Alibakhshikenari, F. Arpanaei, B. Virdee
The design of an equilateral triangular slot-based planar rectangular antenna is presented for wideband millimeter-wave (mm-wave) applications. The front-side of the proposed antenna is composed of a rectangular patch radiator with an equilateral triangular slot fed using a 50Ω microstrip feeding line, while the bottom side of the antenna consists of a partial ground plane. To achieve maximum impedance matching in the operating bandwidth, the position of the feeding line is shifted from its normal location. The overall dimensions of the antenna are noted to be 6.5×8.5 mm2. From the simulation results, it is demonstrated that the -10 dB impedance bandwidth of the proposed antenna is 16.86 GHz, ranging from 22.28 GHz to 39.14 GHz, while at -15 dB, it is equal to 12.82 GHz in the frequency range of 24.18-37 GHz. The gain of the proposed antenna fluctuates in the range of 3.89-6.86 dBi with an antenna efficiency of >85%.
{"title":"Equilateral Triangular Slot-based Planar Rectangular Antenna for Millimeter-wave Applications","authors":"M. U. Tahir, U. Rafique, M. M. Ahmed, Mohammad Alibakhshikenari, F. Arpanaei, B. Virdee","doi":"10.1109/APWC49427.2022.9900052","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9900052","url":null,"abstract":"The design of an equilateral triangular slot-based planar rectangular antenna is presented for wideband millimeter-wave (mm-wave) applications. The front-side of the proposed antenna is composed of a rectangular patch radiator with an equilateral triangular slot fed using a 50Ω microstrip feeding line, while the bottom side of the antenna consists of a partial ground plane. To achieve maximum impedance matching in the operating bandwidth, the position of the feeding line is shifted from its normal location. The overall dimensions of the antenna are noted to be 6.5×8.5 mm2. From the simulation results, it is demonstrated that the -10 dB impedance bandwidth of the proposed antenna is 16.86 GHz, ranging from 22.28 GHz to 39.14 GHz, while at -15 dB, it is equal to 12.82 GHz in the frequency range of 24.18-37 GHz. The gain of the proposed antenna fluctuates in the range of 3.89-6.86 dBi with an antenna efficiency of >85%.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116879643","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 : 2022-09-05DOI: 10.1109/APWC49427.2022.9899900
T. Maruyama, M. Nakatsugawa, Takahiko Nakamura, Y. Tamayama, M. Omiya
A microwave snow-melting system has been studied in which snow-melting microwaves leaking from a slotted waveguide are applied to wireless power transmission to drive a minecart (snow-melting robot). In order to make effective use of the snow-melting microwaves continuously transmitted from the waveguide, this paper proposes a method to improve the characteristics by arraying the rectenna along the travel direction and combining the power obtained from each rectenna, and analyses the wireless power transmission efficiency of the arrayed rectenna. The results show that, by arraying the rectenna, multiple power can be supplied to a single power receiver and each element works effectively with respect to the antenna characteristics.
{"title":"The Rectenna Array for Minecart Fed by Leaky Wave Waveguide for Microwave Snow Melting","authors":"T. Maruyama, M. Nakatsugawa, Takahiko Nakamura, Y. Tamayama, M. Omiya","doi":"10.1109/APWC49427.2022.9899900","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899900","url":null,"abstract":"A microwave snow-melting system has been studied in which snow-melting microwaves leaking from a slotted waveguide are applied to wireless power transmission to drive a minecart (snow-melting robot). In order to make effective use of the snow-melting microwaves continuously transmitted from the waveguide, this paper proposes a method to improve the characteristics by arraying the rectenna along the travel direction and combining the power obtained from each rectenna, and analyses the wireless power transmission efficiency of the arrayed rectenna. The results show that, by arraying the rectenna, multiple power can be supplied to a single power receiver and each element works effectively with respect to the antenna characteristics.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116225720","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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