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2018 IEEE Conference on Antenna Measurements & Applications (CAMA)最新文献

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Experimental Comparison of Wideband and Narrowband Plasma-based Microstrip Power Limiters 宽带和窄带等离子体微带功率限制器的实验比较
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530493
A. Simon, R. Pascaud, T. Callegari, L. Liard, O. Pascal
{"title":"Experimental Comparison of Wideband and Narrowband Plasma-based Microstrip Power Limiters","authors":"A. Simon, R. Pascaud, T. Callegari, L. Liard, O. Pascal","doi":"10.1109/CAMA.2018.8530493","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530493","url":null,"abstract":"This article presents the experimental work performed as part of the use of the non linear plasma-wave interactions in planar circuits to design microwave power limiters. A first non-resonant plasma-based microwave power limiter composed of a pre-ionized plasma discharge integrated into $Omega$ microstrip line has been experimentally characterized with steady-state and transient measurements. These results have been then confronted at each step to a resonant one using the same plasma discharge. This study highlights the effect of the resonance on the non linear plasma-wave interactions and its consequences on the behaviour and the performances of a plasma-based microwave power limiter.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121919521","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}
引用次数: 2
A PSE-Coated Interdigital Resonator Gas Sensor for Agricultural Applications 一种用于农业应用的pse涂层数字间谐振腔气体传感器
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530556
Warunee Krudpun, N. Chudpooti, Nattapong Duangrit, P. Lorwongtragool, S. Seewattanapon, P. Akkaraekthalin
{"title":"A PSE-Coated Interdigital Resonator Gas Sensor for Agricultural Applications","authors":"Warunee Krudpun, N. Chudpooti, Nattapong Duangrit, P. Lorwongtragool, S. Seewattanapon, P. Akkaraekthalin","doi":"10.1109/CAMA.2018.8530556","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530556","url":null,"abstract":"This paper presents a microwave gas sensor based on interdigital resonator structure coating with gas sensing material of poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester (PSE). This sensor was designed on the center of coplanar waveguide (CPW) to operate at 4 GHz with rejection characteristic. The measured results for five samples of ammonia hydroxide concentration (50, 200, 500, 1000, and 2000 ppm) under a static system in the closed chamber at room temperature were obtained. The levels of gas concentration can be impressively detected by measuring the transmission coefficient changes. The proposed sensor can be employed for several applications such as sensing the gas generating from agricultural products.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"68 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120875261","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}
引用次数: 3
One-Antenna Gain Measurement in a Probe Station 探测站单天线增益测量
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530553
J. Ala-Laurinaho, Jianfang Zheng, A. Räisänen
{"title":"One-Antenna Gain Measurement in a Probe Station","authors":"J. Ala-Laurinaho, Jianfang Zheng, A. Räisänen","doi":"10.1109/CAMA.2018.8530553","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530553","url":null,"abstract":"This paper presents gain measurement results of a printed patch antenna in a probe station environment at millimeter wavelengths. The one-antenna gain measurement method relying on the use of a reflective plate and measurement of the reflection coefficient is applied. The accuracy of the measurement is improved by moving the reflective plate and thus changing its distance from the antenna. In addition, the time-gating is used in order to avoid the effect of the multiple reflections and other stray signals from near-by reflecting objects. The size requirement for the reflective plate is experimentally studied by using three different plate sizes. Also, different reflective plate distance ranges for the gain retrieval are investigated. The obtained results suggest that the distance range of 20–30 mm and reflective plate width of 30 mm are sufficient to provide accurate gain results for a patch antenna at W-band.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121363499","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}
引用次数: 2
Frequency Domain Modeling of a Dipole Antenna Buried in Lossy Half-Space Pocklington equation versus Hallén equation revisited: 80th Anniversary of the Hallén Integral Equation 偶极子天线在有损半空间Pocklington方程与hallsamn方程中的频域建模:hallsamn积分方程80周年纪念
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530570
D. Poljak, Milica Ranèiæ
{"title":"Frequency Domain Modeling of a Dipole Antenna Buried in Lossy Half-Space Pocklington equation versus Hallén equation revisited: 80th Anniversary of the Hallén Integral Equation","authors":"D. Poljak, Milica Ranèiæ","doi":"10.1109/CAMA.2018.8530570","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530570","url":null,"abstract":"The paper reviews the frequency domain modeling of buried dipole antenna using both the Pocklington integro-differential equation and Hallén integral equation formulation. The details pertaining to the numerical solution procedures are outlined as, well. Some strengths and weaknesses of both approaches are presented. A typical computational example for the current distribution induced along the dipole embedded in a lossy ground illustrating both methods is given, as well.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123808540","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}
引用次数: 1
Characteristics of Helmet Antennas at VHF Band VHF频段头盔天线特性研究
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530564
H. Morishita, N. Michishita
{"title":"Characteristics of Helmet Antennas at VHF Band","authors":"H. Morishita, N. Michishita","doi":"10.1109/CAMA.2018.8530564","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530564","url":null,"abstract":"In the disaster radio systems of Japan at 150 MHz, it is desirable that the transceiver is combined with the helmet for rescue operation. Helmet antennas are suitable for this purpose. The high-frequency antennas can be implemented easily on the helmet. However, it is difficult that the helmet antennas at low frequency of 150 MHz are operated in proximity to the human head. This paper presents fundamental characteristics of the helmet antenna composed of the folded dipole antenna at 150 MHz. The relative bandwidth of 2.66%, gain of - 4.63 dBi, and the 10 g average local SAR of 0.35 W/kg are obtained when the copper ring is installed inside the helmet.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126745401","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}
引用次数: 1
Elliptically Polarized Compact Cylinder-Spiral Antenna 椭圆极化紧凑圆柱-螺旋天线
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530491
Keisuke Fujita
{"title":"Elliptically Polarized Compact Cylinder-Spiral Antenna","authors":"Keisuke Fujita","doi":"10.1109/CAMA.2018.8530491","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530491","url":null,"abstract":"In this article, compact cylinder-spiral antennas were designed and analyzed. Numerical analysis has been done on NEC2 engine. The proposed antenna radiates the elliptically polarized field and achieves the high radiation efficiency similar to that of the spherical helix antenna.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126407194","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}
引用次数: 0
Effect of Shoot Scattering on a Grape-Yield Radar 射散对葡萄产量雷达的影响
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530583
I. Platt, K. Eccleston, A. Tan, I. Woodhead
{"title":"Effect of Shoot Scattering on a Grape-Yield Radar","authors":"I. Platt, K. Eccleston, A. Tan, I. Woodhead","doi":"10.1109/CAMA.2018.8530583","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530583","url":null,"abstract":"Detection of grape bunches on a grape vine requires understanding of the radar scattering environment. Early work has shown scattering from leaves is minimal at Sband (2 – 4 GHz). On the other hand, theoretical, simulated and experimental data show that the reflection from shoots is significantly higher than that from grape bunches. A method to discriminate between shoots and grape bunches is proposed.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131884471","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}
引用次数: 2
A New Compact Wide-Band Antenna Design for Satellite Communications with Dual Band-Notches for WiMAX and WLAN Using Particle Swarm Optimization 基于粒子群优化的WiMAX和WLAN双陷波卫星通信小型宽带天线设计
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530634
A. Eltrass, Nahla El-borae, H. Elkamchouchi
{"title":"A New Compact Wide-Band Antenna Design for Satellite Communications with Dual Band-Notches for WiMAX and WLAN Using Particle Swarm Optimization","authors":"A. Eltrass, Nahla El-borae, H. Elkamchouchi","doi":"10.1109/CAMA.2018.8530634","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530634","url":null,"abstract":"In this work, a new design of compact wide-band antenna with dual notch-band characteristics is proposed using Particle Swarm Optimization (PSO). The proposed antenna design is compact in size (32 mm x 38 mm x 1 mm) with a beveled ground plane for wide-band performance. In order to prevent interference problems from nearby communication systems like WiMAX (3.3-3.8 GHz) and WLAN (5.1-5.8 GHz) technologies, an open C-shaped stub is embedded in the radiating patch and a pair of U-shaped parasitic strips is inserted beside the feed line. Simulation results show that the proposed antenna design has a very wide bandwidth covering the entire UWB, X-band, and Ku band frequency range (3 to 20 GHz), along with notch-bands in the WiMAX (3.3–3.8 GHz) and (5.1–5.8 GHz) frequencies. Also, the results show good gain flatness, good impedance matching, and omnidirectional radiation patterns at almost all frequency bands of operation (3 to 20 GHz). This reveals the effectiveness of the proposed antenna design in the applications of wide-band communication systems such as satellite communications.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"328 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134324386","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}
引用次数: 2
Evaluating the Electromagnetic Pollution in the 700-1000MHz Frequency Range in Urban Areas 城市700-1000MHz频段电磁污染评价
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530655
A. Pastrav, P. Dolea, E. Puschita, Cristian Codau, T. Palade
{"title":"Evaluating the Electromagnetic Pollution in the 700-1000MHz Frequency Range in Urban Areas","authors":"A. Pastrav, P. Dolea, E. Puschita, Cristian Codau, T. Palade","doi":"10.1109/CAMA.2018.8530655","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530655","url":null,"abstract":"As cities grow and expand, more technologies are being employed to improve the quality of life, increasing altogether the electromagnetic pollution. Therefore, it is essential that telecommunications operators comply with existing regulations and be aware of the existing EM background when deploying new sites. The scope of this paper is to present some aspects to be considered in the evaluation of the electromagnetic pollution in the 700MHz-1000MHz frequency range while performing a measurement campaign in the central area of Cluj-Napoca using the Rohde & Schwarz FSH Handheld Spectrum Analyzer.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131763488","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}
引用次数: 1
On Selecting the Most Suitable Range for Antenna Measurements in the VHF-UHF Range 在VHF-UHF范围内选择最合适的天线测量范围
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/cama.2018.8530667
V. Rodriguez
{"title":"On Selecting the Most Suitable Range for Antenna Measurements in the VHF-UHF Range","authors":"V. Rodriguez","doi":"10.1109/cama.2018.8530667","DOIUrl":"https://doi.org/10.1109/cama.2018.8530667","url":null,"abstract":"It is desirable to have a single facility to serve all the antenna measurement needs of an organization of company. However, there is not a one-size-fits-all antenna measurement facility to meet all antennas and frequency ranges. Trying to design and operate a Jack-of-all-trades facility is unrealistic. Such facilities may be ideal for testing part of the frequency range and types of antennas but may not be the ideal solution for certain applications. In this papers suggestions and recommendations are given for specific types of antennas mainly operating in the 30 to 3000 MHz range.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"112 3‐4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113972622","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}
引用次数: 1
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