Pub Date : 2013-12-01DOI: 10.1109/AEMC.2013.7045106
S. Maity
Theoretical analysis for fundamental mode of isosceles 45°-45°-90° triangular microstrip antenna is given. Trilinear transformation is modified to find an approximate solution. Eigenfunction, eigenvalue are given here. Input impedance, radiation patterns are also calculated and verified with 3D simulated dada.
{"title":"Approximate solution for fundamental mode of 45°–45°–90° triangular microstrip antenna","authors":"S. Maity","doi":"10.1109/AEMC.2013.7045106","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045106","url":null,"abstract":"Theoretical analysis for fundamental mode of isosceles 45°-45°-90° triangular microstrip antenna is given. Trilinear transformation is modified to find an approximate solution. Eigenfunction, eigenvalue are given here. Input impedance, radiation patterns are also calculated and verified with 3D simulated dada.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121053441","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045089
S. Mukherjee, Mousumi Sarkar, S. Bhanja, Arijit Majumder
Reduced-height rectangular crossed waveguide cross-slot directional coupler has been designed at W band (75GHz-110GHz) with computer aided design approach and experimentally verified. The coupler has been simulated and optimized with 3D full wave electromagnetic field simulator HFSS. Coupling of 10.5 dB is achieved with good directivity within a bandwidth of more than 10%. The experimental result closely matches with the simulation.
{"title":"Computer aided design of broad-band rectangular waveguide directional coupler at W band","authors":"S. Mukherjee, Mousumi Sarkar, S. Bhanja, Arijit Majumder","doi":"10.1109/AEMC.2013.7045089","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045089","url":null,"abstract":"Reduced-height rectangular crossed waveguide cross-slot directional coupler has been designed at W band (75GHz-110GHz) with computer aided design approach and experimentally verified. The coupler has been simulated and optimized with 3D full wave electromagnetic field simulator HFSS. Coupling of 10.5 dB is achieved with good directivity within a bandwidth of more than 10%. The experimental result closely matches with the simulation.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121288840","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045037
H. Tripathi, K. R. Jha
In this manuscript, a small reduced ground plane printed antenna to be used in WLAN/WiMax is analyzed. The reduced ground plane antenna is designed on the FR-4 substrate whose length width and thickness are 30 mm, 15 mm and 0.8 mm, respectively. The length and width of the antenna are 10 mm and 15 mm respectively. The compact antenna offers a wide bandwidth and may be used in WiMAX and WLAN Dongle applications.
{"title":"Design of compact printed antenna for 5.2/5.8 GHz WLAN and 3.5/5.5 GHz WiMAX wireless USB Dongle application","authors":"H. Tripathi, K. R. Jha","doi":"10.1109/AEMC.2013.7045037","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045037","url":null,"abstract":"In this manuscript, a small reduced ground plane printed antenna to be used in WLAN/WiMax is analyzed. The reduced ground plane antenna is designed on the FR-4 substrate whose length width and thickness are 30 mm, 15 mm and 0.8 mm, respectively. The length and width of the antenna are 10 mm and 15 mm respectively. The compact antenna offers a wide bandwidth and may be used in WiMAX and WLAN Dongle applications.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128717668","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045029
S. Mukherjee, A. Biswas, K. V. Srivastava
In this paper, a novel technique to enhance the bandwidth of substrate integrated waveguide cavity backed slot antenna is demonstrated. The feeding technique to the cavity backed antenna has been modified by introducing offset feeding of microstrip line along with microstrip to grounded coplanar waveguide transition which helps to excite TE120 mode in the cavity and also to get improvement in impedance matching to the slot antenna simultaneously. The proposed antenna is designed to resonate in X band (8-12 GHz) and shows a resonance at 10.2 GHz with a bandwidth of 4.2% and a gain of 5.6 dBi, 15.6 dB front to back ratio and -30 dB maximum cross polarization level.
{"title":"Bandwidth enhancement of substrate integrated waveguide cavity backed slot antenna by offset feeding technique","authors":"S. Mukherjee, A. Biswas, K. V. Srivastava","doi":"10.1109/AEMC.2013.7045029","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045029","url":null,"abstract":"In this paper, a novel technique to enhance the bandwidth of substrate integrated waveguide cavity backed slot antenna is demonstrated. The feeding technique to the cavity backed antenna has been modified by introducing offset feeding of microstrip line along with microstrip to grounded coplanar waveguide transition which helps to excite TE120 mode in the cavity and also to get improvement in impedance matching to the slot antenna simultaneously. The proposed antenna is designed to resonate in X band (8-12 GHz) and shows a resonance at 10.2 GHz with a bandwidth of 4.2% and a gain of 5.6 dBi, 15.6 dB front to back ratio and -30 dB maximum cross polarization level.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"46 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116393291","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045024
Nayan Kumar Gunele, S. Bhongade, D. V. Ghodke, R. M. Vadjikar, V. Senecha, S. Joshi
The modeling and simulation of external antenna is important for the study of RF driven hydrogen plasma sources. The external antenna will be externally wrapped around plasma chamber. RF pulsed power feeding at 2 MHz frequency to antenna for plasma generation (ionisation) and heat up through inductive coupling. This antenna has been modeled and simulated with Opera-3D simulation platform using TOSCA module. This simulation will help to study the magnetic field behaviour and determination of electrical parameters of antenna. The analysis has been carried out by considering current of 400 Amp in antenna, the results are reported in the paper.
{"title":"Modeling and simulation of 2 MHz external antenna for RF driven H− ion source","authors":"Nayan Kumar Gunele, S. Bhongade, D. V. Ghodke, R. M. Vadjikar, V. Senecha, S. Joshi","doi":"10.1109/AEMC.2013.7045024","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045024","url":null,"abstract":"The modeling and simulation of external antenna is important for the study of RF driven hydrogen plasma sources. The external antenna will be externally wrapped around plasma chamber. RF pulsed power feeding at 2 MHz frequency to antenna for plasma generation (ionisation) and heat up through inductive coupling. This antenna has been modeled and simulated with Opera-3D simulation platform using TOSCA module. This simulation will help to study the magnetic field behaviour and determination of electrical parameters of antenna. The analysis has been carried out by considering current of 400 Amp in antenna, the results are reported in the paper.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268736","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045080
Anuraag Misra, V. Pandit
Microwave ion source producing multi milliamperes of proton beam is currently operational at Variable Energy Cyclotron Centre. The main aim of this development is to understand and establish the key issues in high current beam generation, transport and its characterization for matching to a compact cyclotron. This ion source is excited through a 2.45 GHz magnetron. Its delivery system consists of a dual directional coupler, four stub auto tuner and a double ridged waveguide impedance transformer for efficient coupling of microwave power to the plasma. This paper describes the operating experience of different high power microwave components installed in the microwave feeding system of the ion source together with the simulation and experimental results of double ridged waveguide coupler for the ion source.
{"title":"Development of microwave feeding system for high current ion source","authors":"Anuraag Misra, V. Pandit","doi":"10.1109/AEMC.2013.7045080","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045080","url":null,"abstract":"Microwave ion source producing multi milliamperes of proton beam is currently operational at Variable Energy Cyclotron Centre. The main aim of this development is to understand and establish the key issues in high current beam generation, transport and its characterization for matching to a compact cyclotron. This ion source is excited through a 2.45 GHz magnetron. Its delivery system consists of a dual directional coupler, four stub auto tuner and a double ridged waveguide impedance transformer for efficient coupling of microwave power to the plasma. This paper describes the operating experience of different high power microwave components installed in the microwave feeding system of the ion source together with the simulation and experimental results of double ridged waveguide coupler for the ion source.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127353557","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045098
T. Divakar, D. C. Panda
This paper describes the circular microstrip antenna with an air gap between two substrates and ground plane using the cavity model theory. The gain and bandwidth improvement is achieved using an air dielectric between two substrates. The microstrip patch antenna was fed by line with an air dielectric between two substrates. The gain of this antenna was 2.39 dB greater and bandwidth was 1.35% greater than that of a conventional circular patch antenna. The method of computation uses MOM and this is enabled by FEKO software.
{"title":"Gain and bandwidth enhancement of a circular microstrip patch antenna with an air dielectric between two substrates","authors":"T. Divakar, D. C. Panda","doi":"10.1109/AEMC.2013.7045098","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045098","url":null,"abstract":"This paper describes the circular microstrip antenna with an air gap between two substrates and ground plane using the cavity model theory. The gain and bandwidth improvement is achieved using an air dielectric between two substrates. The microstrip patch antenna was fed by line with an air dielectric between two substrates. The gain of this antenna was 2.39 dB greater and bandwidth was 1.35% greater than that of a conventional circular patch antenna. The method of computation uses MOM and this is enabled by FEKO software.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122200716","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045112
Raj Kumar, R. R. Krishna, Nagendra Kushwaha
A printed monopole antenna for UWB applications is presented in this paper. The monopole has a circular sector shape and is excited using a CPW feed. Quasi fractal elements in the form of triangular slots of varying dimensions are incorporated in the circular secto disc for obtaining the UWB behavior. The measured impedance bandwidth is from 4 GHz and extends well beyond 12 GHz. The measured radiation patterns of the antenna are nearly omni directional in the H-plane and dumb bell shape in the E-plane.
{"title":"A fractal monopole antenna for UWB applications","authors":"Raj Kumar, R. R. Krishna, Nagendra Kushwaha","doi":"10.1109/AEMC.2013.7045112","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045112","url":null,"abstract":"A printed monopole antenna for UWB applications is presented in this paper. The monopole has a circular sector shape and is excited using a CPW feed. Quasi fractal elements in the form of triangular slots of varying dimensions are incorporated in the circular secto disc for obtaining the UWB behavior. The measured impedance bandwidth is from 4 GHz and extends well beyond 12 GHz. The measured radiation patterns of the antenna are nearly omni directional in the H-plane and dumb bell shape in the E-plane.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131861171","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045022
A. Tiwari, B. Sharma, D. Bhatnagar, Vijay Sharma, K. Sharma, S. Chakrabarti
Paper reports the design and performance of a modified circular microstrip patch antenna with modified ground plane. Proposed antenna with overall dimensions 22 mm × 36 mm × 1.59 mm is simulated by applying CST Microwave Studio simulator and fed through a quarter wave line. This antenna has an impedance bandwidth of 3.00 GHz (2.40GHz - 5.40GHz) with flat gain (close to 3dBi) in the desired frequency range. The E plane radiation patterns simulated at frequency 3.5GHz are almost omni directional while H-plane patterns resembles with that of a dipole antenna. Both patterns are directed normal to patch geometry. This antenna may be proved useful in modern wireless communication systems.
本文报道了一种改进地平面的圆形微带贴片天线的设计和性能。采用CST Microwave Studio模拟器对外形尺寸为22 mm × 36 mm × 1.59 mm的天线进行了仿真，并采用四分之一波线馈电。该天线的阻抗带宽为3.00 GHz (2.40GHz - 5.40GHz)，在所需频率范围内具有平坦增益(接近3dBi)。在3.5GHz频率下模拟的E面辐射方向图几乎是全向的，而h面辐射方向图与偶极子天线的辐射方向图相似。这两种模式都指向补丁几何的法线。这种天线在现代无线通信系统中可能被证明是有用的。
{"title":"Design of compact wideband key-slotted circular microstrip patch antenna with modified ground plane","authors":"A. Tiwari, B. Sharma, D. Bhatnagar, Vijay Sharma, K. Sharma, S. Chakrabarti","doi":"10.1109/AEMC.2013.7045022","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045022","url":null,"abstract":"Paper reports the design and performance of a modified circular microstrip patch antenna with modified ground plane. Proposed antenna with overall dimensions 22 mm × 36 mm × 1.59 mm is simulated by applying CST Microwave Studio simulator and fed through a quarter wave line. This antenna has an impedance bandwidth of 3.00 GHz (2.40GHz - 5.40GHz) with flat gain (close to 3dBi) in the desired frequency range. The E plane radiation patterns simulated at frequency 3.5GHz are almost omni directional while H-plane patterns resembles with that of a dipole antenna. Both patterns are directed normal to patch geometry. This antenna may be proved useful in modern wireless communication systems.","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130495956","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 : 2013-12-01DOI: 10.1109/AEMC.2013.7045052
A. K. Jyani, S. Awasthi, A. Biswas
In this paper cylindrical Dielectric Resonator is simultaneously used as a Filter and an Antenna named as Dielectric Resonator Antenna Filter (DRAF), at X band. We can tune and design Filter part and Antenna part of DRAF almost independently, operating frequencies of antenna and filter can be made same or different. The independent control of Antenna part and Filter part in DRAF comes from the orthogonal nature of two modes TE01δ for DRF and HEM11δ for DRA of the Dielectric Resonator. Antenna part has been excited by two different feeding methods. For coaxial feed method operating frequencies are 10.86 GHz (DRF) and 8.64 GHz (DRA) and for microstrip feed method operating frequencies are 11.18 GHz (DRF) and 8.12 GHz (DRA).
{"title":"Design of Dielectric Resonator Antenna and Filter for X band application","authors":"A. K. Jyani, S. Awasthi, A. Biswas","doi":"10.1109/AEMC.2013.7045052","DOIUrl":"https://doi.org/10.1109/AEMC.2013.7045052","url":null,"abstract":"In this paper cylindrical Dielectric Resonator is simultaneously used as a Filter and an Antenna named as Dielectric Resonator Antenna Filter (DRAF), at X band. We can tune and design Filter part and Antenna part of DRAF almost independently, operating frequencies of antenna and filter can be made same or different. The independent control of Antenna part and Filter part in DRAF comes from the orthogonal nature of two modes TE01δ for DRF and HEM11δ for DRA of the Dielectric Resonator. Antenna part has been excited by two different feeding methods. For coaxial feed method operating frequencies are 10.86 GHz (DRF) and 8.64 GHz (DRA) and for microstrip feed method operating frequencies are 11.18 GHz (DRF) and 8.12 GHz (DRA).","PeriodicalId":169237,"journal":{"name":"2013 IEEE Applied Electromagnetics Conference (AEMC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130987457","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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