Pub Date : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848350
M. Raveendra, Saam Prasanth Dheeraj Pedapalli, Venkatesh Choppa, Umar Farooq Syed, Palivela Venkata Naga Ravi Teja, V. Rao
This paper is associated with the substrate integrated waveguide (siw) antenna with two different types of vias such as copper and ceramic material. The dielectric constant of the ceramic vias is 20.9. This paper's main aim is to improve the bandwidth of the antenna using ceramic vias compared to copper vias. Hence the performance parameters of the antenna have been analyzed with copper and ceramic vias in terms of the amount of power lunching into the antenna and bandwidth of the operating frequency at L, S, and G band applications. When the copper vias have used, there are only two resonating bands. but when the ceramic vias have used there are three resonating bands were analyzed. The maximum bandwidth of ceramic vias is about 1170 MHz at the G band when the copper vias are used on the same configuration of the antenna the maximum obtained bandwidth is about 708.60 MHz. More details regarding bandwidth at each band have been analyzed.
{"title":"Design and analysis of a substrate Integrated Waveguide Antenna Using Ceramic Vias for Bandwidth Improvement","authors":"M. Raveendra, Saam Prasanth Dheeraj Pedapalli, Venkatesh Choppa, Umar Farooq Syed, Palivela Venkata Naga Ravi Teja, V. Rao","doi":"10.1109/WAMS54719.2022.9848350","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848350","url":null,"abstract":"This paper is associated with the substrate integrated waveguide (siw) antenna with two different types of vias such as copper and ceramic material. The dielectric constant of the ceramic vias is 20.9. This paper's main aim is to improve the bandwidth of the antenna using ceramic vias compared to copper vias. Hence the performance parameters of the antenna have been analyzed with copper and ceramic vias in terms of the amount of power lunching into the antenna and bandwidth of the operating frequency at L, S, and G band applications. When the copper vias have used, there are only two resonating bands. but when the ceramic vias have used there are three resonating bands were analyzed. The maximum bandwidth of ceramic vias is about 1170 MHz at the G band when the copper vias are used on the same configuration of the antenna the maximum obtained bandwidth is about 708.60 MHz. More details regarding bandwidth at each band have been analyzed.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132233300","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847789
M. Sreenivasulu, E. Kumari, R. R. Reddy, S. Abhyuday
To cater demand of multiband operating applications a low-profile microstrip antenna comprising Minkowski fractal architecture and defective ground structures (DGS) is proposed. The self-similar minkowski fractal developed in 4 iteration levels is presented. Circular defects are etched in ground plane of the proposed iteration 4 antenna to enhance performance of antenna and to obtain multiband operation. Results observed for basic iterations and iteration 4 for both with and without DGS configurations is presented. With 3 mm circular defect in ground plane the iteration 4 antenna operates over various frequencies within range 5.38 GHz – 20.73 GHz. In terms of gain the 7.9 dBi gain offered by the iteration 4 with 6 mm circular DGS is higher than 7.5 dBi gain offered by iteration 4 with 3 mm DGS.
{"title":"Minkowski Fractal Antenna with Circular DGS for Multiband Applications","authors":"M. Sreenivasulu, E. Kumari, R. R. Reddy, S. Abhyuday","doi":"10.1109/WAMS54719.2022.9847789","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847789","url":null,"abstract":"To cater demand of multiband operating applications a low-profile microstrip antenna comprising Minkowski fractal architecture and defective ground structures (DGS) is proposed. The self-similar minkowski fractal developed in 4 iteration levels is presented. Circular defects are etched in ground plane of the proposed iteration 4 antenna to enhance performance of antenna and to obtain multiband operation. Results observed for basic iterations and iteration 4 for both with and without DGS configurations is presented. With 3 mm circular defect in ground plane the iteration 4 antenna operates over various frequencies within range 5.38 GHz – 20.73 GHz. In terms of gain the 7.9 dBi gain offered by the iteration 4 with 6 mm circular DGS is higher than 7.5 dBi gain offered by iteration 4 with 3 mm DGS.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132534719","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848304
Ritam Gupta, S. Christopher, R. D. Koilpillai
In this paper, a miniaturised wide-band circular slot cut patch antenna with broad beam width is proposed that can be used for X band applications i.e., radar, satellite and wireless computer networks. In this proposed antenna design, initially a circular patch is taken and then 2 circular slots are removed from the patch to get wide band and broad beam-width providing 1.67 GHz (17%) of bandwidth, beam-width (HPBW) 100° in E-plane (i.e., $phi=0^{o}$) and 96° in H-plane (i.e., $phi=90^{o}$) and more than 100° beam-width for higher frequency within the operating bandwidth. The proposed design provides 5.5 dBi–4.43 dBi of gain over the band. For miniaturising and furthermore improvement of bandwidth and beam-width capacitive via fence is introduced around the patch antenna providing 2.03 GHz (22%) of bandwidth and more than 125° of beam-width. Ansys HFSS is used for antenna simulation and a prototype has been fabricated.
{"title":"Wide-band Circular Slot Cut Patch Antenna with Broad Beam-width for X band applications","authors":"Ritam Gupta, S. Christopher, R. D. Koilpillai","doi":"10.1109/WAMS54719.2022.9848304","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848304","url":null,"abstract":"In this paper, a miniaturised wide-band circular slot cut patch antenna with broad beam width is proposed that can be used for X band applications i.e., radar, satellite and wireless computer networks. In this proposed antenna design, initially a circular patch is taken and then 2 circular slots are removed from the patch to get wide band and broad beam-width providing 1.67 GHz (17%) of bandwidth, beam-width (HPBW) 100° in E-plane (i.e., $phi=0^{o}$) and 96° in H-plane (i.e., $phi=90^{o}$) and more than 100° beam-width for higher frequency within the operating bandwidth. The proposed design provides 5.5 dBi–4.43 dBi of gain over the band. For miniaturising and furthermore improvement of bandwidth and beam-width capacitive via fence is introduced around the patch antenna providing 2.03 GHz (22%) of bandwidth and more than 125° of beam-width. Ansys HFSS is used for antenna simulation and a prototype has been fabricated.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"292 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132170959","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847941
Gaurangi Gupta, P. Estabrook, P. Focardi, E. Decrossas, N. Chahat
An all metal patch dual frequency dual circularly polarized X-band antenna is under development at NASA's Jet Propulsion Laboratory for a potential Europa Lander. The antenna is proposed to be used as a secondary telecommunication antenna for Direct-to-Earth (DTE) link without relying on an Orbiter. An antenna array with fan-beam radiation has been designed which can result in a wide beam circular polarization for longer coverage while surviving the harsh environmental conditions at Europa, including, cryogenic temperature, high radiation and electrostatic discharge (ESD) levels.
{"title":"All-Metal Patch Dual-Frequency Dual-Circular Polarized Fan-Beam Antenna","authors":"Gaurangi Gupta, P. Estabrook, P. Focardi, E. Decrossas, N. Chahat","doi":"10.1109/WAMS54719.2022.9847941","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847941","url":null,"abstract":"An all metal patch dual frequency dual circularly polarized X-band antenna is under development at NASA's Jet Propulsion Laboratory for a potential Europa Lander. The antenna is proposed to be used as a secondary telecommunication antenna for Direct-to-Earth (DTE) link without relying on an Orbiter. An antenna array with fan-beam radiation has been designed which can result in a wide beam circular polarization for longer coverage while surviving the harsh environmental conditions at Europa, including, cryogenic temperature, high radiation and electrostatic discharge (ESD) levels.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128520941","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847867
Priyanka Choudhary, Deepika Sipal, S. Baudha
In this paper, an offset-fed penta-band monopole antenna is presented on a $19.18times 22.64times 1.6text{mm}^{3}$ FR-4 epoxy substrate having a dielectric constant ($varepsilon_{mathrm{r}}$) of 4.4. This operates on five resonating frequency bands with good impedance bandwidth. The proposed antenna consists of a radiating element with inverted U-shaped slot and inverted U-shaped partial ground attached with hairline L-shaped slot for generating multiband characteristics. The circuit design equations are used to analyze the inverted U-shaped slot for lower and higher order resonance frequencies. The addition of U-shaped structure with L-shaped slot embedded in partial ground plane provided the mid resonant frequencies with effective gain and improved bandwidth. The proposed antenna is designed for Universal Mobile Telecommunication System (UMTS)/GSM(1.91GHz) and Wireless LAN/Mobile satellite services (MSS)(4.31GHz, 5.61GHz, 6.61GHz and 8.31GHz) applications. The proposed antenna has various advantages like simple and compact design, effective gain and multiband operation.
{"title":"Offset Fed Inverted U-shaped Slot Penta-Band Monopole Antenna for UMTS/GSM/WLAN Applications","authors":"Priyanka Choudhary, Deepika Sipal, S. Baudha","doi":"10.1109/WAMS54719.2022.9847867","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847867","url":null,"abstract":"In this paper, an offset-fed penta-band monopole antenna is presented on a $19.18times 22.64times 1.6text{mm}^{3}$ FR-4 epoxy substrate having a dielectric constant ($varepsilon_{mathrm{r}}$) of 4.4. This operates on five resonating frequency bands with good impedance bandwidth. The proposed antenna consists of a radiating element with inverted U-shaped slot and inverted U-shaped partial ground attached with hairline L-shaped slot for generating multiband characteristics. The circuit design equations are used to analyze the inverted U-shaped slot for lower and higher order resonance frequencies. The addition of U-shaped structure with L-shaped slot embedded in partial ground plane provided the mid resonant frequencies with effective gain and improved bandwidth. The proposed antenna is designed for Universal Mobile Telecommunication System (UMTS)/GSM(1.91GHz) and Wireless LAN/Mobile satellite services (MSS)(4.31GHz, 5.61GHz, 6.61GHz and 8.31GHz) applications. The proposed antenna has various advantages like simple and compact design, effective gain and multiband operation.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133039099","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848044
Tarush Mehta, Sukomal Dey
This work presents design of circulators using active elements like transistors. Metamaterial based structure consisting of ring resonators loaded with FET's is used to make the circulator design with nonreciprocity. The proposed work deals with two designs, the first circulator shows its operation at 6 GHz that can be used for Wi-Fi 6E communications. The second design which is an extension of the first one acts like a Tri-band circulator having resonances at 1.3 GHz, 3.2 GHz and 5.9 GHz. The circulator demonstrates simulated insertion loss of 3.8 dB, isolation of better than 10 dB and matching of > 22 dB at 5.9 GHz. The proposed circulator can be used for both Wi-Fi 6E and WiMAX applications.
{"title":"Design of Tri-band RF Circulators using Non-Magnetic Metamaterial Based Structures for Wi-Fi 6E and WiMAX Applications","authors":"Tarush Mehta, Sukomal Dey","doi":"10.1109/WAMS54719.2022.9848044","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848044","url":null,"abstract":"This work presents design of circulators using active elements like transistors. Metamaterial based structure consisting of ring resonators loaded with FET's is used to make the circulator design with nonreciprocity. The proposed work deals with two designs, the first circulator shows its operation at 6 GHz that can be used for Wi-Fi 6E communications. The second design which is an extension of the first one acts like a Tri-band circulator having resonances at 1.3 GHz, 3.2 GHz and 5.9 GHz. The circulator demonstrates simulated insertion loss of 3.8 dB, isolation of better than 10 dB and matching of > 22 dB at 5.9 GHz. The proposed circulator can be used for both Wi-Fi 6E and WiMAX applications.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123532343","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847842
B. Manichandana, R. Reddy, P. Srikanth, U. Kumari
This work presents the design of an ‘L’ shaped slot Fractal-based Rectangular Patch with Defective Ground Structure (DGS) for dual band operation, which makes it suitable for X-band (8-12 GHz) and Ku-band (12-18 GHz) applications. The four L-shaped slots are considered for each iteration and 2*2 array, with equal slot area. Four asymmetric plus slots are created on the radiating patch in the centre of the elements of the 2*2 array antenna to produce circular polarization. The incorporation of DGS resulted in increased bandwidth and dual band operation. Antenna parameters are analysed to study its performance. The proposed antenna with DGS offers dual band operation with a frequency bandwidth of 1.86 GHz (10.26 GHz – 12.13 GHz) and 2.23 GHz (16 GHz – 18.23 GHz). Peak gain obtained is 7.9 dB at 16.92 GHz with DGS. The proposed antenna exhibits circular polarisation in the frequency range of 18.11-18.37 GHz. The simulations were carried out using HFSS software.
{"title":"L-Slots Fractal Antenna with DGS for Dual band Applications","authors":"B. Manichandana, R. Reddy, P. Srikanth, U. Kumari","doi":"10.1109/WAMS54719.2022.9847842","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847842","url":null,"abstract":"This work presents the design of an ‘L’ shaped slot Fractal-based Rectangular Patch with Defective Ground Structure (DGS) for dual band operation, which makes it suitable for X-band (8-12 GHz) and Ku-band (12-18 GHz) applications. The four L-shaped slots are considered for each iteration and 2*2 array, with equal slot area. Four asymmetric plus slots are created on the radiating patch in the centre of the elements of the 2*2 array antenna to produce circular polarization. The incorporation of DGS resulted in increased bandwidth and dual band operation. Antenna parameters are analysed to study its performance. The proposed antenna with DGS offers dual band operation with a frequency bandwidth of 1.86 GHz (10.26 GHz – 12.13 GHz) and 2.23 GHz (16 GHz – 18.23 GHz). Peak gain obtained is 7.9 dB at 16.92 GHz with DGS. The proposed antenna exhibits circular polarisation in the frequency range of 18.11-18.37 GHz. The simulations were carried out using HFSS software.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130338527","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847770
A. S, Anand K. R
This paper describes 5G Stand Alone (SA) Core network Solution dimensioning with compliance to 3rd Generation Partnership Program (3GPP) Standards which is a norm and requirement for Digital Private Networks (DPN) evolution across the globe in the segments of Oil and Gas, Electric Utility, Transportation, Ports, Mining etc. The 5GC aimed to be dimensioned is proposed on Service Oriented Architecture (SOA) Framework, High availability (HA) & Software Defined Networks (SDN) / Network Function Virtualization (NFV) and Multi-edge computing (MEC) attributes. 5G Core (5GC) Solution dimensioned for the DPN includes all the functional, parametric, and operational requirements. In this paper we have presented the Factors considered for Dimensioning of DPN Standalone (SA) core, Integration of 5G SA Core with the important verticals of DPN i.e., MCS (Mission Critical Services), IOT (Internet of Things) and C-V2X (Cellular Vehicle to everything), VoNR (Voice over NewRadio). Also, the paper covers the 5G Core network capacity design for an Oil & Gas(O&G) Network use case with Optimized selection of relevant VNF's. Also, the paper covers the Functional Testing, Interworking and parametric load testing aspects of the VNF's (Virtual Network Fumction) along with Interworking Functions (IWF) of the SA core network. 5G Core Network (CN) for Oil and Gas is designed and dimensioned to handle the capacities of 4k to 6k Voice & Data users and a max of 10k to 15k IoT devices which includes 100 to 500 MCS users and 500 to 1000 Connected Vehicles and other application services required for O&G networks to be supported on the core network with capabilities of corresponding VNF functions on 3GPP specified relevant Core network interfaces. 5GC Solution designed meets capacity requirements at a typical O&G network with efficient Data Centre subsystems from reputed OEM like Intel, Dell, HP, Cisco for realizing the DPN SA core solution.
{"title":"Designing, Dimensioning and Testing SDN-NFV Private Cloud Architecture based realisation of 5GC with IIOT, MCS, CV2X & VONR Service","authors":"A. S, Anand K. R","doi":"10.1109/WAMS54719.2022.9847770","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847770","url":null,"abstract":"This paper describes 5G Stand Alone (SA) Core network Solution dimensioning with compliance to 3rd Generation Partnership Program (3GPP) Standards which is a norm and requirement for Digital Private Networks (DPN) evolution across the globe in the segments of Oil and Gas, Electric Utility, Transportation, Ports, Mining etc. The 5GC aimed to be dimensioned is proposed on Service Oriented Architecture (SOA) Framework, High availability (HA) & Software Defined Networks (SDN) / Network Function Virtualization (NFV) and Multi-edge computing (MEC) attributes. 5G Core (5GC) Solution dimensioned for the DPN includes all the functional, parametric, and operational requirements. In this paper we have presented the Factors considered for Dimensioning of DPN Standalone (SA) core, Integration of 5G SA Core with the important verticals of DPN i.e., MCS (Mission Critical Services), IOT (Internet of Things) and C-V2X (Cellular Vehicle to everything), VoNR (Voice over NewRadio). Also, the paper covers the 5G Core network capacity design for an Oil & Gas(O&G) Network use case with Optimized selection of relevant VNF's. Also, the paper covers the Functional Testing, Interworking and parametric load testing aspects of the VNF's (Virtual Network Fumction) along with Interworking Functions (IWF) of the SA core network. 5G Core Network (CN) for Oil and Gas is designed and dimensioned to handle the capacities of 4k to 6k Voice & Data users and a max of 10k to 15k IoT devices which includes 100 to 500 MCS users and 500 to 1000 Connected Vehicles and other application services required for O&G networks to be supported on the core network with capabilities of corresponding VNF functions on 3GPP specified relevant Core network interfaces. 5GC Solution designed meets capacity requirements at a typical O&G network with efficient Data Centre subsystems from reputed OEM like Intel, Dell, HP, Cisco for realizing the DPN SA core solution.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127217147","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848139
Prantik Dutta, G. Kumar, G. Ram, D. S. Varma
Non-reciprocal filters using time-varying transmission lines (TVTL) have recently gained prominence. The basis of their functionality lies in the time modulation of space-separated resonators using sinusoids having progressive phase shifts. The purpose of this paper is to mathematically simulate a bandpass filter exhibiting non-reciprocity at the center frequency deploying the concept of time-modulated transmission lines based on a published model and extend the analysis with a detailed parametric study of the competitors that delve towards the generation of non-reciprocity. The study dealt with is still obscure in the recent developments in this domain.
{"title":"Non-reciprocal Bandpass Filters: Parametric Simulation","authors":"Prantik Dutta, G. Kumar, G. Ram, D. S. Varma","doi":"10.1109/WAMS54719.2022.9848139","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848139","url":null,"abstract":"Non-reciprocal filters using time-varying transmission lines (TVTL) have recently gained prominence. The basis of their functionality lies in the time modulation of space-separated resonators using sinusoids having progressive phase shifts. The purpose of this paper is to mathematically simulate a bandpass filter exhibiting non-reciprocity at the center frequency deploying the concept of time-modulated transmission lines based on a published model and extend the analysis with a detailed parametric study of the competitors that delve towards the generation of non-reciprocity. The study dealt with is still obscure in the recent developments in this domain.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130147413","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848111
Punyatoya Routray, D. Ghosh
A quadruple, compact multi-layered metamaterial absorber operating in the frequency band of C, X, Ku is presented in this paper. The multi-layered structure is formed by integrating the nested circular rings as the top layer and combination of split ring resonators and rings as the lower layer. The absorptivity plot of individual layer as well as absorptivity plot of complete multi-layered structure, which is calculated by considering both co- and cross- polarized reflection co-efficients, are studied. The presented design resonates at four resonating frequencies of 7.68 GHz, 11.073 GHz, 11.329 GHz, 13.1 GHz with absorptivity of 98%, 95%, 91%, and 99% respectively and also provides a bandwidth of 2GHz at full width half maximum (FWHM). The absorptivity plot with respect to the variation of both phi and theta is plotted to investigate the behaviour about polarization sensitivity and oblique incidence. The surface current distributions and impedance plot have been explained for the origin of high absorption.
{"title":"Quadruple Polarization Insensitive Multilayered Metamaterial Absorber","authors":"Punyatoya Routray, D. Ghosh","doi":"10.1109/WAMS54719.2022.9848111","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848111","url":null,"abstract":"A quadruple, compact multi-layered metamaterial absorber operating in the frequency band of C, X, Ku is presented in this paper. The multi-layered structure is formed by integrating the nested circular rings as the top layer and combination of split ring resonators and rings as the lower layer. The absorptivity plot of individual layer as well as absorptivity plot of complete multi-layered structure, which is calculated by considering both co- and cross- polarized reflection co-efficients, are studied. The presented design resonates at four resonating frequencies of 7.68 GHz, 11.073 GHz, 11.329 GHz, 13.1 GHz with absorptivity of 98%, 95%, 91%, and 99% respectively and also provides a bandwidth of 2GHz at full width half maximum (FWHM). The absorptivity plot with respect to the variation of both phi and theta is plotted to investigate the behaviour about polarization sensitivity and oblique incidence. The surface current distributions and impedance plot have been explained for the origin of high absorption.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126577257","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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