Pub Date : 2007-06-09DOI: 10.1109/APS.2007.4396587
D. Lin, I. Tang, Ming-zhang Hong, Hsin-Piao Lin
The development of compact antennas plays an important role in rapidly growing mobile communication market. This paper presents a novel design technique of the quad-band small internal antenna which covers GSM-900/DCS-1800/PCS-1900/IMT-2000 bands. The handset antenna is developed within the limits of a 44times25times4 mm3 volume. This proposed antenna describes a new idea of increasing operational bandwidth for the compact planar inverted F antenna (PIFA). The proposed idea introduces the open-end slots in the ground plane almost all under the radiating patch. The size reduction method is attractive from the point of view of practical antenna implementation.
{"title":"A compact quad-band PIFA by using defected ground structure","authors":"D. Lin, I. Tang, Ming-zhang Hong, Hsin-Piao Lin","doi":"10.1109/APS.2007.4396587","DOIUrl":"https://doi.org/10.1109/APS.2007.4396587","url":null,"abstract":"The development of compact antennas plays an important role in rapidly growing mobile communication market. This paper presents a novel design technique of the quad-band small internal antenna which covers GSM-900/DCS-1800/PCS-1900/IMT-2000 bands. The handset antenna is developed within the limits of a 44times25times4 mm3 volume. This proposed antenna describes a new idea of increasing operational bandwidth for the compact planar inverted F antenna (PIFA). The proposed idea introduces the open-end slots in the ground plane almost all under the radiating patch. The size reduction method is attractive from the point of view of practical antenna implementation.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126943079","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 : 2007-06-09DOI: 10.1109/APS.2007.4395549
S. Fernández, R. Santamaria, M. Añón
The purpose of this paper is to detail the high power antennas developed in the EMC Area at INTA according to the test facility capabilities, in order to accomplish the new RF test levels.
{"title":"High power antenna specifically designed for reverberation chambers use","authors":"S. Fernández, R. Santamaria, M. Añón","doi":"10.1109/APS.2007.4395549","DOIUrl":"https://doi.org/10.1109/APS.2007.4395549","url":null,"abstract":"The purpose of this paper is to detail the high power antennas developed in the EMC Area at INTA according to the test facility capabilities, in order to accomplish the new RF test levels.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114937755","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 : 2007-06-09DOI: 10.1109/APS.2007.4396600
R.L. Li, B. Pan, J. Papapolymerou, J. Laskar, M. Tentzeris
A new type of low-profile broadband planar antenna is developed for DVB-H, DCS-1800, and IMT-2000 handsets. The planar antenna for UHF-band DVB-H terminals has a height of 8 mm while the antenna height for DCS-1800 and IMT-2000 applications is only 4.8 mm which is much lower than previously published antenna configurations. The broadband planar antennas consist of an S-strip and a folded T-strip which are separately printed on the two sides of a thin planar substrate. The bandwidth enhancement is realized by the mutual coupling between the S-strip and the T-strip. It has been demonstrated that the antenna for DVB-H terminals can achieve a gain of -2 to -4 dBi (3-7 dB higher than the standard specification) over the DVB-H band (470-702 MHz) while the antenna for the DCS-1800 and IMT-2000 handsets can achieve a bandwidth of-30% for return loss <-10 dB.
{"title":"Low-profile broadband planar antennas for DVB-H, DCS-1800, and IMT-2000 applications","authors":"R.L. Li, B. Pan, J. Papapolymerou, J. Laskar, M. Tentzeris","doi":"10.1109/APS.2007.4396600","DOIUrl":"https://doi.org/10.1109/APS.2007.4396600","url":null,"abstract":"A new type of low-profile broadband planar antenna is developed for DVB-H, DCS-1800, and IMT-2000 handsets. The planar antenna for UHF-band DVB-H terminals has a height of 8 mm while the antenna height for DCS-1800 and IMT-2000 applications is only 4.8 mm which is much lower than previously published antenna configurations. The broadband planar antennas consist of an S-strip and a folded T-strip which are separately printed on the two sides of a thin planar substrate. The bandwidth enhancement is realized by the mutual coupling between the S-strip and the T-strip. It has been demonstrated that the antenna for DVB-H terminals can achieve a gain of -2 to -4 dBi (3-7 dB higher than the standard specification) over the DVB-H band (470-702 MHz) while the antenna for the DCS-1800 and IMT-2000 handsets can achieve a bandwidth of-30% for return loss <-10 dB.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115355488","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 : 2007-06-09DOI: 10.1109/APS.2007.4396547
K. L. Ford, B. Chambers
It was recently discovered in the works of Chambers and Ford (2006) that the inclusion of frequency selective surfaces (FSS) within the back section of the absorber can significantly improve the low frequency performance without significant increases in weight or cost. The aim of this paper is to use a simple transmission-line model of the impedance-loaded absorber structure to reveal what properties the FSS should have for optimal absorber performance.
{"title":"Optimum performance of pyramidal absorbers using impedance loading layers","authors":"K. L. Ford, B. Chambers","doi":"10.1109/APS.2007.4396547","DOIUrl":"https://doi.org/10.1109/APS.2007.4396547","url":null,"abstract":"It was recently discovered in the works of Chambers and Ford (2006) that the inclusion of frequency selective surfaces (FSS) within the back section of the absorber can significantly improve the low frequency performance without significant increases in weight or cost. The aim of this paper is to use a simple transmission-line model of the impedance-loaded absorber structure to reveal what properties the FSS should have for optimal absorber performance.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115548563","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 : 2007-06-09DOI: 10.1109/APS.2007.4395813
D. Kwon, Zikri Bayraktar, D. Werner, U. Chettiar, A. Kildishev, V. Shalaev
This paper applies two nature-based optimization techniques - the genetic algorithm (GA) in the work of Haupt and Haupt (2004) and particle swarm optimization (PSO) in the work of Kennedy and Eberhart (2001) - to the design of a two-dimensional IR-visible metamaterial using realistic bulk silver parameters by maximizing a properly-defined figure of merit.
{"title":"Nature-based optimization of 2d negative-index metamaterials","authors":"D. Kwon, Zikri Bayraktar, D. Werner, U. Chettiar, A. Kildishev, V. Shalaev","doi":"10.1109/APS.2007.4395813","DOIUrl":"https://doi.org/10.1109/APS.2007.4395813","url":null,"abstract":"This paper applies two nature-based optimization techniques - the genetic algorithm (GA) in the work of Haupt and Haupt (2004) and particle swarm optimization (PSO) in the work of Kennedy and Eberhart (2001) - to the design of a two-dimensional IR-visible metamaterial using realistic bulk silver parameters by maximizing a properly-defined figure of merit.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115560743","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 : 2007-06-09DOI: 10.1109/APS.2007.4396774
F. Bichelot, R. Loison, L. Le Coq
In this paper we present a new antenna design combining electromagnetic bandgap (EBG) antenna with a frequency selective surface (FSS) structure. A dual layer rectangular dipole array is used as a FSS structure in order to enhance the directivity bandwidth. The antenna has been realised and the measurements confirm the directivity bandwidth enhancement.
{"title":"FSS-EBG antenna with improved directivity bandwidth : theory, design and measurements","authors":"F. Bichelot, R. Loison, L. Le Coq","doi":"10.1109/APS.2007.4396774","DOIUrl":"https://doi.org/10.1109/APS.2007.4396774","url":null,"abstract":"In this paper we present a new antenna design combining electromagnetic bandgap (EBG) antenna with a frequency selective surface (FSS) structure. A dual layer rectangular dipole array is used as a FSS structure in order to enhance the directivity bandwidth. The antenna has been realised and the measurements confirm the directivity bandwidth enhancement.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115580553","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 : 2007-06-09DOI: 10.1109/APS.2007.4396364
T. Q. Ho, L. Hunt, C. A. Hewett, M. Kragalott, D. Zolnick, T.G. Ready, R. Mittra, Wenhua Yu
Shipboard line of sight (LOS) communication systems commonly rely on monopole and dipole antennas. When constructed out of segmented wires, the free space performance for these antenna types are well understood. This paper presents the results from a numerical study of deck proximity and mounting effects on the performance of a complex ultra high frequency (UHF) LOS antenna based on the multifunction electromagnetic radiating system (MERS) concept.
{"title":"Impact of mounting on UHF LOS antenna system","authors":"T. Q. Ho, L. Hunt, C. A. Hewett, M. Kragalott, D. Zolnick, T.G. Ready, R. Mittra, Wenhua Yu","doi":"10.1109/APS.2007.4396364","DOIUrl":"https://doi.org/10.1109/APS.2007.4396364","url":null,"abstract":"Shipboard line of sight (LOS) communication systems commonly rely on monopole and dipole antennas. When constructed out of segmented wires, the free space performance for these antenna types are well understood. This paper presents the results from a numerical study of deck proximity and mounting effects on the performance of a complex ultra high frequency (UHF) LOS antenna based on the multifunction electromagnetic radiating system (MERS) concept.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116442835","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 : 2007-06-09DOI: 10.1109/APS.2007.4396606
D. Lin, I. Tang, Yuqing Wei, Hsin-Piao Lin
In this paper, a wideband slot antenna with coplanar waveguide (CPW) fed for IEEE Std 802.16-2004 applications is presented. By introducing the sunk ground plane, the narrow feeding-line, and the beveled inner-conductor, the required impedance bandwidth is achieved over the frequency range from 2.15 to 5.83 GHz (S11 < -10 dB). This proposed antenna with broadband bandwidth and small size can be suitable for communication products of wireless local area network (WLAN) or WiMax applications.
{"title":"A compact slot antenna with CPW-fed for IEEE 802.16-2004 applications","authors":"D. Lin, I. Tang, Yuqing Wei, Hsin-Piao Lin","doi":"10.1109/APS.2007.4396606","DOIUrl":"https://doi.org/10.1109/APS.2007.4396606","url":null,"abstract":"In this paper, a wideband slot antenna with coplanar waveguide (CPW) fed for IEEE Std 802.16-2004 applications is presented. By introducing the sunk ground plane, the narrow feeding-line, and the beveled inner-conductor, the required impedance bandwidth is achieved over the frequency range from 2.15 to 5.83 GHz (S11 < -10 dB). This proposed antenna with broadband bandwidth and small size can be suitable for communication products of wireless local area network (WLAN) or WiMax applications.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122291737","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 : 2007-06-09DOI: 10.1109/APS.2007.4396883
C. Jung, Yong Jin Kim, Ilkyu Kim, Young Eil Kim
In this paper, two representing diodes, the PIN diode and the varactor, are used for the Macro-micro frequency tuning. The PIN diode in the antenna is used for switching wireless service bands (Macro-tuning). As well as the varactor in the antenna is used for tuning frequency band to obtain the constant antenna gain (micro-tuning). The proposed antenna newly realizes desirable broad and fine frequency tuning at the same time for the reconfigurable wireless communication system.
{"title":"Macro-micro frequency reconfigurable antenna","authors":"C. Jung, Yong Jin Kim, Ilkyu Kim, Young Eil Kim","doi":"10.1109/APS.2007.4396883","DOIUrl":"https://doi.org/10.1109/APS.2007.4396883","url":null,"abstract":"In this paper, two representing diodes, the PIN diode and the varactor, are used for the Macro-micro frequency tuning. The PIN diode in the antenna is used for switching wireless service bands (Macro-tuning). As well as the varactor in the antenna is used for tuning frequency band to obtain the constant antenna gain (micro-tuning). The proposed antenna newly realizes desirable broad and fine frequency tuning at the same time for the reconfigurable wireless communication system.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122369283","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 : 2007-06-09DOI: 10.1109/APS.2007.4396854
H. Nakano, S. Hattori, K. Morishita, M. Baiju, J. Yamauchi
A fan-shaped antenna has been proposed for UWB communications systems [T. Kondo et al., 2004][H. Nakano et al., 2006]. The fan-shaped antenna is a card-type antenna, where the radiation element and the ground plate lie in the same plane. The card-type structure facilitates the use of the fan-shaped antenna in PC card devices for personal computers or inside mobile phone handsets. Subsequently, an elliptical antenna, where the fan-shaped element in [T. Kondo et al., 2004][H. Nakano et al., 2006] is replaced with an elliptically shaped conducting ring, has been investigated and its radiation characteristics have been compared to those of the fan-shaped antenna [S. Hattori et al., 2005] [H. Nakano et al., 2005]. It is found that the elliptical and fan-shaped antennas have similar antenna characteristics.
提出了一种用于超宽带通信系统的扇形天线[j]。近藤等，2004 [H]。Nakano等人，2006]。扇形天线为卡式天线，其辐射元件与接地板在同一平面上。该卡式结构便于在个人计算机或移动电话手持设备内部的PC卡设备中使用扇形天线。随后，采用椭圆天线，其中[T]中的扇形单元。近藤等，2004 [H]。Nakano et al.， 2006]被椭圆形导电环取代，并与扇形天线的辐射特性进行了比较。[j]。Nakano等人，2005]。发现椭圆型和扇形天线具有相似的天线特性。
{"title":"A folded elliptical antenna with a stop band characteristic","authors":"H. Nakano, S. Hattori, K. Morishita, M. Baiju, J. Yamauchi","doi":"10.1109/APS.2007.4396854","DOIUrl":"https://doi.org/10.1109/APS.2007.4396854","url":null,"abstract":"A fan-shaped antenna has been proposed for UWB communications systems [T. Kondo et al., 2004][H. Nakano et al., 2006]. The fan-shaped antenna is a card-type antenna, where the radiation element and the ground plate lie in the same plane. The card-type structure facilitates the use of the fan-shaped antenna in PC card devices for personal computers or inside mobile phone handsets. Subsequently, an elliptical antenna, where the fan-shaped element in [T. Kondo et al., 2004][H. Nakano et al., 2006] is replaced with an elliptically shaped conducting ring, has been investigated and its radiation characteristics have been compared to those of the fan-shaped antenna [S. Hattori et al., 2005] [H. Nakano et al., 2005]. It is found that the elliptical and fan-shaped antennas have similar antenna characteristics.","PeriodicalId":117975,"journal":{"name":"2007 IEEE Antennas and Propagation Society International Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122392310","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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