Pub Date : 2006-10-01DOI: 10.1109/ISAPE.2006.353451
Xingcheng Li, Yongshun Zhang, Lili Zhu
In this paper, the adaptive side-lobe canceller (ASLC) under saturated attack will be analyzed; especially the ASLC based on the phased array is concerned. The mathematic model of weights equation and cancellation ratio (CR) under saturated attacks is presented. Finally the simulation results are presented.
{"title":"ASLC Based on Phased Array under Saturated Attack","authors":"Xingcheng Li, Yongshun Zhang, Lili Zhu","doi":"10.1109/ISAPE.2006.353451","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353451","url":null,"abstract":"In this paper, the adaptive side-lobe canceller (ASLC) under saturated attack will be analyzed; especially the ASLC based on the phased array is concerned. The mathematic model of weights equation and cancellation ratio (CR) under saturated attacks is presented. Finally the simulation results are presented.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122133491","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353593
J. Shuyuan, Su Donglin, Dai Fei, Wang Yu
Through analyzing the definition, development process, forecast indicators and the forecast methods between system reliability and electromagnetic compatibility of system, this paper point that it can be consulted between electromagnetic compatibility of system forecast and system reliability. This paper put forward electromagnetic compatibility of system forecast method based on system reliability theory.
{"title":"System Electromagnetic Compatibility Forecast Methods Based on Reliability theory","authors":"J. Shuyuan, Su Donglin, Dai Fei, Wang Yu","doi":"10.1109/ISAPE.2006.353593","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353593","url":null,"abstract":"Through analyzing the definition, development process, forecast indicators and the forecast methods between system reliability and electromagnetic compatibility of system, this paper point that it can be consulted between electromagnetic compatibility of system forecast and system reliability. This paper put forward electromagnetic compatibility of system forecast method based on system reliability theory.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117333916","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353565
Z. Weng, Nai‐biao Wang, Y. Jiao, Rong-Guo
A high gain omnidirectional monopole antenna with a metamaterial cover is proposed in this paper. We show that under proper condition the energy radiated by a source embedded in a cylinder of metamaterial will be concentrated in a narrow cone in the horizontal plane and maintain its omni-directivity in the vertical plane. The ideas developed here are applied in the microwave domain to realize a high gain omnidirectional monopole antenna using conformal metamaterial which is composed of metallic cylinder array. The measured results show that the gain of the monopole is increased from 5.0 dB to 7.3 dB and maintains its omni-directivity. Our designs are helpful in the application of metamaterial in omnidirectional communication antenna.
{"title":"The Design of High Gain Omni Directional Monopole Based on Conformal Metamaterial Cover","authors":"Z. Weng, Nai‐biao Wang, Y. Jiao, Rong-Guo","doi":"10.1109/ISAPE.2006.353565","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353565","url":null,"abstract":"A high gain omnidirectional monopole antenna with a metamaterial cover is proposed in this paper. We show that under proper condition the energy radiated by a source embedded in a cylinder of metamaterial will be concentrated in a narrow cone in the horizontal plane and maintain its omni-directivity in the vertical plane. The ideas developed here are applied in the microwave domain to realize a high gain omnidirectional monopole antenna using conformal metamaterial which is composed of metallic cylinder array. The measured results show that the gain of the monopole is increased from 5.0 dB to 7.3 dB and maintains its omni-directivity. Our designs are helpful in the application of metamaterial in omnidirectional communication antenna.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129693400","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353532
Zhuanhong Jia, FaLiang Ao, Qinglin Zhu
In this paper, we derived BER performance for hybrid FSO/RF systems operating over atmospheric attenuation channels. Simulation results are demonstrated to confirm the analytical results. From the results, we conclude that BER is decreasing as the adverse weather and further distance. If the FSO system is used, fog hampers communication, on the contrary, RF systems are immune to fog. Rain is just contrary. Therefore, we should take advantage of the hybrid system to conquer the disadvantages of one of them operating only, enhance the availability of the system.
{"title":"BER Performance of the Hybrid FSO/RF Attenuation System","authors":"Zhuanhong Jia, FaLiang Ao, Qinglin Zhu","doi":"10.1109/ISAPE.2006.353532","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353532","url":null,"abstract":"In this paper, we derived BER performance for hybrid FSO/RF systems operating over atmospheric attenuation channels. Simulation results are demonstrated to confirm the analytical results. From the results, we conclude that BER is decreasing as the adverse weather and further distance. If the FSO system is used, fog hampers communication, on the contrary, RF systems are immune to fog. Rain is just contrary. Therefore, we should take advantage of the hybrid system to conquer the disadvantages of one of them operating only, enhance the availability of the system.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128417160","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353349
Zhong Li, Guangming Wang, Yi Cao
In this paper, we adopt a novel electromagnetic band-gap (EBG) ground plane to reduce the profile of planar equiangular spiral antenna. The novel EBG structure is notched on every unit cell to form a square loop, combining the virtue of mushroom-like structure and tunable structure, which is not found in the correlative literatures. The lower resonant frequency means reducing the size of EBG cell in the same band-gap frequency. The novel EBG structure can emulate well a perfect magnetic conductor (PMC). The combination of EBG and equiangular spiral antenna produces a low-profile, high gain and wide-band antenna.
{"title":"A Low-Profile Equiangular Spiral Antenna Using a Novel EBG Ground Plane","authors":"Zhong Li, Guangming Wang, Yi Cao","doi":"10.1109/ISAPE.2006.353349","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353349","url":null,"abstract":"In this paper, we adopt a novel electromagnetic band-gap (EBG) ground plane to reduce the profile of planar equiangular spiral antenna. The novel EBG structure is notched on every unit cell to form a square loop, combining the virtue of mushroom-like structure and tunable structure, which is not found in the correlative literatures. The lower resonant frequency means reducing the size of EBG cell in the same band-gap frequency. The novel EBG structure can emulate well a perfect magnetic conductor (PMC). The combination of EBG and equiangular spiral antenna produces a low-profile, high gain and wide-band antenna.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805146","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353470
Zhang Qian-yue, Wang Guang-ming, Xia Dong-yu
A novel bidirectional microstrip antenna fed by coplanar waveguide (CPW) is proposed to obtain circular polarization (CP) radiation. Two radiating patches, located on the front and back sides of the CPW respectively, are fed by coupling through the CPW open stub. Same rotation CP radiations in two opposite directions are achieved by adding perturbation segments at different sides of the square patches. The symmetrical characteristics of the antenna suppress the even mode in the CPW line. Measured results show that the proposed antenna can have an input impedance bandwidth of 11.6% and CP bandwidth of 1.86%. Left-hand circular polarization (LHCP) is found on both sides of the antenna. This bidirectional CP antenna is suited to be a reader antenna for the radio frequency identification (RFID) system.
{"title":"Bidirectional Circularly Polarized Microstrip Antenna Fed by Coplanar Waveguide","authors":"Zhang Qian-yue, Wang Guang-ming, Xia Dong-yu","doi":"10.1109/ISAPE.2006.353470","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353470","url":null,"abstract":"A novel bidirectional microstrip antenna fed by coplanar waveguide (CPW) is proposed to obtain circular polarization (CP) radiation. Two radiating patches, located on the front and back sides of the CPW respectively, are fed by coupling through the CPW open stub. Same rotation CP radiations in two opposite directions are achieved by adding perturbation segments at different sides of the square patches. The symmetrical characteristics of the antenna suppress the even mode in the CPW line. Measured results show that the proposed antenna can have an input impedance bandwidth of 11.6% and CP bandwidth of 1.86%. Left-hand circular polarization (LHCP) is found on both sides of the antenna. This bidirectional CP antenna is suited to be a reader antenna for the radio frequency identification (RFID) system.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128286255","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353238
Ming Huang, Jingjing Yang, Jinhui Peng, Jiaqiang Wang, Jun Sun
The paper presents dielectric relaxation processes of materials that is a key physical phenomenon in the fields of microwave chemistry, microwave detection and microwave processing of materials. Using the new equation for the description of dielectric losses under microwave irradiation, which was developed by authors, absorption properties of rubber compounds was simulated. It was found that the simulating results based on this new equation are in good agreement with the Volge-Fulcher law. It shows that the new equation has potential application in the study of microwave interaction with materials.
{"title":"Absorption Properties of Materials under Microwave Irradiation","authors":"Ming Huang, Jingjing Yang, Jinhui Peng, Jiaqiang Wang, Jun Sun","doi":"10.1109/ISAPE.2006.353238","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353238","url":null,"abstract":"The paper presents dielectric relaxation processes of materials that is a key physical phenomenon in the fields of microwave chemistry, microwave detection and microwave processing of materials. Using the new equation for the description of dielectric losses under microwave irradiation, which was developed by authors, absorption properties of rubber compounds was simulated. It was found that the simulating results based on this new equation are in good agreement with the Volge-Fulcher law. It shows that the new equation has potential application in the study of microwave interaction with materials.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"6 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128601617","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353296
M. Nosrati, Z. Atlasbaf
In this paper a novel small size dual-band rectangular ring band-pass filter is designed using new equivalent loaded coupled lines. Any line of the designed filter by CUSTODIO PELXEIRO is replaced by the new equivalent loaded coupled lines, so the size of new filter is reduced about 42% with the same frequency performance. This type of filter has some applications in GSM & DCS systems.
{"title":"A Novel Model of Small Sized Dual-Band Rectangular Ring Bandpass Filter","authors":"M. Nosrati, Z. Atlasbaf","doi":"10.1109/ISAPE.2006.353296","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353296","url":null,"abstract":"In this paper a novel small size dual-band rectangular ring band-pass filter is designed using new equivalent loaded coupled lines. Any line of the designed filter by CUSTODIO PELXEIRO is replaced by the new equivalent loaded coupled lines, so the size of new filter is reduced about 42% with the same frequency performance. This type of filter has some applications in GSM & DCS systems.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124677334","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353465
Yuliang Cong, Chunmei Cong, B. He
This paper proposes that the inter-layer separation distance (ISD) and the unit cell aligning error (UAE) are used as main variables to study the transmission performance attenuation of the double layer FSS configuration. The numerical analysis model for ISD and UAE was established and also was used to simulate the cross loop slot cell FSS transmission performance by the finite element and periodic moment method program. The double layer cross loop aperture FSS configuration designed was used as the numerical model. As a result of the numerical analysis, it is shown that both ISD and UAE produce insertion transmission loss (ITL) and insertion phase distortion (IPD) directly. Furthermore, ISD results in much loss of the amplitude of the transmitted signal for the FSS than UAE. It is significant for the designer for the multiplayer FSS to assign the fabricated error of the FSS dielectric layers. The UAE introduces the insertion phase variation badly.
{"title":"Effects of Fabricated Error on Transmission Performance of Double Screens Cross Loop Slot FSS Configuration","authors":"Yuliang Cong, Chunmei Cong, B. He","doi":"10.1109/ISAPE.2006.353465","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353465","url":null,"abstract":"This paper proposes that the inter-layer separation distance (ISD) and the unit cell aligning error (UAE) are used as main variables to study the transmission performance attenuation of the double layer FSS configuration. The numerical analysis model for ISD and UAE was established and also was used to simulate the cross loop slot cell FSS transmission performance by the finite element and periodic moment method program. The double layer cross loop aperture FSS configuration designed was used as the numerical model. As a result of the numerical analysis, it is shown that both ISD and UAE produce insertion transmission loss (ITL) and insertion phase distortion (IPD) directly. Furthermore, ISD results in much loss of the amplitude of the transmitted signal for the FSS than UAE. It is significant for the designer for the multiplayer FSS to assign the fabricated error of the FSS dielectric layers. The UAE introduces the insertion phase variation badly.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130418835","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 : 2006-10-01DOI: 10.1109/ISAPE.2006.353474
Zhou Li
Antenna, which whether transmits or receives correct signal or not is our main care and our direction, is an important part in any communication systems. Because of the characteristics of laser different from radio, the antenna system of point-to-point laser communication system must be designed strictly. In this paper, we mainly study the optical antenna in the space communication. We describe the optical antenna's structure. The performances of optical antenna are first given in this paper.
{"title":"Cassegrain antenna system based on free-space laser communication","authors":"Zhou Li","doi":"10.1109/ISAPE.2006.353474","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353474","url":null,"abstract":"Antenna, which whether transmits or receives correct signal or not is our main care and our direction, is an important part in any communication systems. Because of the characteristics of laser different from radio, the antenna system of point-to-point laser communication system must be designed strictly. In this paper, we mainly study the optical antenna in the space communication. We describe the optical antenna's structure. The performances of optical antenna are first given in this paper.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130678929","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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