Pub Date : 2016-12-01DOI: 10.1109/IMARC.2016.7939634
A. Ansari, M. Akhtar
The electromagnetic and microwave absorption properties of 15 wt% cobalt/polystyrene (Co/PS) nanocomposite in the X-band of microwave frequency are studied for seeking its usage as light weight and wideband microwave absorber. The melt blending and automated injection molding methods are employed to prepare the cobalt/polystyrene nanocomposite sheet successfully. The reflection and transmission coefficients of the prepared sample are measured using the vector network analyzer (VNA) in the X-band. The complex permittivity (εr) and complex permeability (μr) of the prepared Co/PS nanocomposite are extracted from the measured reflection and transmission coefficients. The maximum reflection loss (absorption) of 18.17 dB (98.48%) at 12.40 GHz with 1 GHz bandwidth is obtained for 5 mm thick sample comprising of 15 wt% Co/PS nanocomposite.
{"title":"Design of light weight wideband microwave absorber using ferromagnetic cobalt nanoparticles dispersed in polystyrene matrix for X-band applications","authors":"A. Ansari, M. Akhtar","doi":"10.1109/IMARC.2016.7939634","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939634","url":null,"abstract":"The electromagnetic and microwave absorption properties of 15 wt% cobalt/polystyrene (Co/PS) nanocomposite in the X-band of microwave frequency are studied for seeking its usage as light weight and wideband microwave absorber. The melt blending and automated injection molding methods are employed to prepare the cobalt/polystyrene nanocomposite sheet successfully. The reflection and transmission coefficients of the prepared sample are measured using the vector network analyzer (VNA) in the X-band. The complex permittivity (εr) and complex permeability (μr) of the prepared Co/PS nanocomposite are extracted from the measured reflection and transmission coefficients. The maximum reflection loss (absorption) of 18.17 dB (98.48%) at 12.40 GHz with 1 GHz bandwidth is obtained for 5 mm thick sample comprising of 15 wt% Co/PS nanocomposite.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125446904","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939616
Manish Mendhe, Y. Hemalatha, N. Ramesh, Srihari Merugu
This paper describes the detailed design steps of wideband contiguous Diplexer using Suspended Strip line Substrate (SSS) covering the frequency range of 18–40 GHz. Good input match, low insertion loss, smooth & narrow overlap region with good selectivity and performance repeatability are major requirement for achieving high performance wide-open millimeter Wave (mmW) multiplexers. However the above requirements are difficult to achieve simultaneously especially in the mmW region where perfect input match is a primary concern over a wideband region. The design, analysis and optimization using existing Microwave simulation software's with unavailability of accurate linear schematic models and Electro-Magnetic (EM) based models with limited or no optimization feature tightened the challenge further. The step by step discontinuity modeling and optimization approach has been described to obtain the accurate and fast simulation results. The approach has been described and verified practically to achieve cross over loss of less than 4 dB and input output matching with return loss of better than 10 dB in the entire band of 18–40 GHz.
{"title":"Discontinuity modeling and stepped optimization technique based design of wideband contiguous millimeter-Wave Diplexer for EW application","authors":"Manish Mendhe, Y. Hemalatha, N. Ramesh, Srihari Merugu","doi":"10.1109/IMARC.2016.7939616","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939616","url":null,"abstract":"This paper describes the detailed design steps of wideband contiguous Diplexer using Suspended Strip line Substrate (SSS) covering the frequency range of 18–40 GHz. Good input match, low insertion loss, smooth & narrow overlap region with good selectivity and performance repeatability are major requirement for achieving high performance wide-open millimeter Wave (mmW) multiplexers. However the above requirements are difficult to achieve simultaneously especially in the mmW region where perfect input match is a primary concern over a wideband region. The design, analysis and optimization using existing Microwave simulation software's with unavailability of accurate linear schematic models and Electro-Magnetic (EM) based models with limited or no optimization feature tightened the challenge further. The step by step discontinuity modeling and optimization approach has been described to obtain the accurate and fast simulation results. The approach has been described and verified practically to achieve cross over loss of less than 4 dB and input output matching with return loss of better than 10 dB in the entire band of 18–40 GHz.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134226211","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939619
D. Kant, L. Joshi, V. Janyani
A five beam klystron operating in L band with 2 kW (CW) output power is being designed at CSIR-CEERI for its intended applications in communication. The present paper discusses the design of RF cavity for the klystron. The dimensional parameters of the five beam RF cavity have been calculated initially through standard analytic formulas and then optimized through simulations in CST Microwave studio and MAGIC −3d codes. The cavity has been fabricated and characterized, the measured results are in agreement with the simulation.
{"title":"Design and characterization of RF cavity for a L-band multi beam klystron","authors":"D. Kant, L. Joshi, V. Janyani","doi":"10.1109/IMARC.2016.7939619","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939619","url":null,"abstract":"A five beam klystron operating in L band with 2 kW (CW) output power is being designed at CSIR-CEERI for its intended applications in communication. The present paper discusses the design of RF cavity for the klystron. The dimensional parameters of the five beam RF cavity have been calculated initially through standard analytic formulas and then optimized through simulations in CST Microwave studio and MAGIC −3d codes. The cavity has been fabricated and characterized, the measured results are in agreement with the simulation.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007805","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939628
Ayushi Barthwal, K. Rawat, S. Koul
This paper presents the analysis and design of wideband tri-stage Doherty Power Amplifier (DPA). The DPA is implemented using three 10-W packaged GaN-HEMT devices from CREE. The measured drain efficiency is more than 50% and 45% over the frequency range of 700MHz to 1000MHz at 6dB and 9.54dB output power back off (OPBO) respectively. The peak drain efficiency is better than 60% over this 300 MHz band. Measurements with 10MHz LTE signal with PAPR of 11.89dB shows the average drain efficiency of 45.7% at average power of 32.04 dBm at 850MHz. The corresponding adjacent channel power ratio is better than −46.27dBc after using digital predistortion algorithm.
{"title":"Wideband tri-stage Doherty Power Amplifier with asymmetric current ratios","authors":"Ayushi Barthwal, K. Rawat, S. Koul","doi":"10.1109/IMARC.2016.7939628","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939628","url":null,"abstract":"This paper presents the analysis and design of wideband tri-stage Doherty Power Amplifier (DPA). The DPA is implemented using three 10-W packaged GaN-HEMT devices from CREE. The measured drain efficiency is more than 50% and 45% over the frequency range of 700MHz to 1000MHz at 6dB and 9.54dB output power back off (OPBO) respectively. The peak drain efficiency is better than 60% over this 300 MHz band. Measurements with 10MHz LTE signal with PAPR of 11.89dB shows the average drain efficiency of 45.7% at average power of 32.04 dBm at 850MHz. The corresponding adjacent channel power ratio is better than −46.27dBc after using digital predistortion algorithm.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127662200","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939624
P. Porwal, Syed Azeemuddin, P. Bhimalapuram, T. Sau
In this paper, biotin streptavidin interaction has been sensed at microwave frequencies with the help of designed sensor. It takes advantage of two pole filter topology where interdigitated capacitor (IDC) is used as a coupling zone between resonators for higher sensitivity. Due to permittivity change of biotin streptavidin combination, shift in resonant frequency arise whereas due to conductivity, magnitude of reflection coefficient changes. The frequency range of 10 GHz − 25 GHz (γ- dispersion region) is used as it is effective for label free analysis of biotin streptavidin. Due to homogeneous E-field between the fingers of IDC, placement position of biotin-streptavidin will not affect the sensitivity. Significant frequency shifts as high as 19 MHz, 45 MHz and 70 MHz are observed for concentrations as low as 10 ng/ml, 20 ng/ml and 30 ng/ml of biotin-streptavidin respectively. Simulation results suggest that proposed biosensor is sensitive even for concentration of 5 ng/ml of sample.
{"title":"Detection of biotin-streptavidin interaction using RF interdigitated capacitive cavity","authors":"P. Porwal, Syed Azeemuddin, P. Bhimalapuram, T. Sau","doi":"10.1109/IMARC.2016.7939624","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939624","url":null,"abstract":"In this paper, biotin streptavidin interaction has been sensed at microwave frequencies with the help of designed sensor. It takes advantage of two pole filter topology where interdigitated capacitor (IDC) is used as a coupling zone between resonators for higher sensitivity. Due to permittivity change of biotin streptavidin combination, shift in resonant frequency arise whereas due to conductivity, magnitude of reflection coefficient changes. The frequency range of 10 GHz − 25 GHz (γ- dispersion region) is used as it is effective for label free analysis of biotin streptavidin. Due to homogeneous E-field between the fingers of IDC, placement position of biotin-streptavidin will not affect the sensitivity. Significant frequency shifts as high as 19 MHz, 45 MHz and 70 MHz are observed for concentrations as low as 10 ng/ml, 20 ng/ml and 30 ng/ml of biotin-streptavidin respectively. Simulation results suggest that proposed biosensor is sensitive even for concentration of 5 ng/ml of sample.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125719528","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939632
S. Singh, Abhishek Kumar Jha, M. Akhtar
Recent advancement in bioengineering and terahertz (THz) technology has stimulated interest in studying the interaction between THz radiation and biological agents, molecules and tissues. The THz imaging and testing system in clinical settings usually needs a samples holder to hold the freshly excised ex-vivo maligned specimen for diagnosis purposes. The conventional specimen holder being used in clinical trials has inherited material losses that eventually deteriorate the transmission of THz signal through the sample under test. In this article, a nearly perfect transparent superstrate frequency selective surface (FSS) operating at THz frequency is proposed for the improved THz imaging and testing applications. The designed superstrate FSS structure shows a typical attenuation of less than 1 dB for the frequency range 300−760 GHz. This superstrate FSS structure is numerically tested with the computational electromagnetic solver, the CST STUDIO SUITE, based on finite integration technique (FIT) and later the obtained results are verified using another solver, the Ansoft HFSS, based on the finite element method (FEM). The out of band rejection for the proposed design is found to be better than −25 dB for normal illumination. It is found that the designed superstrate FSS is polarization insensitive and works as a perfect transparent window for oblique incidence over a limited bandwidth. The detailed study of the proposed superstrate FSS structure demonstrates that the proposed structure is a viable choice and may replace the conventional sample holders for better transmission of THz waves through the test medium.
生物工程和太赫兹(THz)技术的最新进展激发了研究太赫兹辐射与生物制剂、分子和组织之间相互作用的兴趣。临床环境中的太赫兹成像和测试系统通常需要一个样品支架来容纳新切除的离体恶性标本以进行诊断。在临床试验中使用的传统标本架继承了材料损耗，最终使太赫兹信号通过被测样品的传输恶化。本文提出了一种工作在太赫兹频率下的近乎完美透明的超层频率选择表面(FSS)，用于改进太赫兹成像和测试应用。在300 ~ 760 GHz的频率范围内，所设计的上盖FSS结构的典型衰减小于1 dB。采用基于有限积分技术(FIT)的CST STUDIO SUITE计算电磁求解器对该结构进行了数值测试，然后使用基于有限元法(FEM)的Ansoft HFSS求解器对所得结果进行了验证。在正常照明下，所提出设计的带外抑制优于- 25 dB。结果表明，所设计的叠层FSS对偏振不敏感，并能在有限带宽内作为斜入射的完美透明窗口。对所提出的上层FSS结构的详细研究表明，所提出的结构是一种可行的选择，可以取代传统的样品夹，以更好地通过测试介质传输太赫兹波。
{"title":"Design of broadband superstrate FSS for terahertz imaging and testing applications","authors":"S. Singh, Abhishek Kumar Jha, M. Akhtar","doi":"10.1109/IMARC.2016.7939632","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939632","url":null,"abstract":"Recent advancement in bioengineering and terahertz (THz) technology has stimulated interest in studying the interaction between THz radiation and biological agents, molecules and tissues. The THz imaging and testing system in clinical settings usually needs a samples holder to hold the freshly excised ex-vivo maligned specimen for diagnosis purposes. The conventional specimen holder being used in clinical trials has inherited material losses that eventually deteriorate the transmission of THz signal through the sample under test. In this article, a nearly perfect transparent superstrate frequency selective surface (FSS) operating at THz frequency is proposed for the improved THz imaging and testing applications. The designed superstrate FSS structure shows a typical attenuation of less than 1 dB for the frequency range 300−760 GHz. This superstrate FSS structure is numerically tested with the computational electromagnetic solver, the CST STUDIO SUITE, based on finite integration technique (FIT) and later the obtained results are verified using another solver, the Ansoft HFSS, based on the finite element method (FEM). The out of band rejection for the proposed design is found to be better than −25 dB for normal illumination. It is found that the designed superstrate FSS is polarization insensitive and works as a perfect transparent window for oblique incidence over a limited bandwidth. The detailed study of the proposed superstrate FSS structure demonstrates that the proposed structure is a viable choice and may replace the conventional sample holders for better transmission of THz waves through the test medium.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126120518","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939629
M. A. Bibile, N. Karmakar
In this paper, we present a new approach towards the detection of chipless RFID tags in motion. The magnitude and phase of the backscattered signal received from the chipless RFID tag in motion is detected using a horn antenna. The performance is evaluated through experiment and measured using vector network analyzer. The post processing of the measured results is performed using Matlab. An error analysis is conducted on the experimental results to study the variation of magnitude, frequency and phase due to the movement of a chipless RFID tag. The novel approach gives framework to develop detection and decoding algorithms for moving chipless RFID tag detection.
{"title":"Detection performance of a chipless RFID tag in motion","authors":"M. A. Bibile, N. Karmakar","doi":"10.1109/IMARC.2016.7939629","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939629","url":null,"abstract":"In this paper, we present a new approach towards the detection of chipless RFID tags in motion. The magnitude and phase of the backscattered signal received from the chipless RFID tag in motion is detected using a horn antenna. The performance is evaluated through experiment and measured using vector network analyzer. The post processing of the measured results is performed using Matlab. An error analysis is conducted on the experimental results to study the variation of magnitude, frequency and phase due to the movement of a chipless RFID tag. The novel approach gives framework to develop detection and decoding algorithms for moving chipless RFID tag detection.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132077103","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939633
P. Pal, S. Singh, N. Tiwari, M. Akhtar
A novel tunable band notch filter which consists of a coplanar waveguide and a corrugated metallic strip with horn shaped arms is presented for terahertz (THz) and microwave applications. The corrugated metallic strip with horn shaped arms offer more attenuation to EM wave than the corrugated metallic strip with conventional rectangular arms as the horn shape provides more area for the efficient trapping of the spoof surface plasmon polaritons (SSPPs), which results in the reduction of the overall size of the filter. The effect of the single defect and multiple defects at various locations are studied and analyzed in the THz and microwave region, using full wave numerical simulator CST. The study shows that the desired center frequency of the band stop and attenuation could be achieved by adjusting the position of the defects and their physical dimensions. The attenuation level and tuning frequency range is more for the proposed filter in comparison to the filter based on the corrugated metallic strip with conventional rectangular shaped. The experimental verification of the proposed tunable band notch filter is carried out in the microwave frequency band by fabricating the scaled up version, and measuring the transmission coefficient data using the network analyzer.
{"title":"Spoof surface plasmon polaritons based tunable band notch filter for terahertz and microwave","authors":"P. Pal, S. Singh, N. Tiwari, M. Akhtar","doi":"10.1109/IMARC.2016.7939633","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939633","url":null,"abstract":"A novel tunable band notch filter which consists of a coplanar waveguide and a corrugated metallic strip with horn shaped arms is presented for terahertz (THz) and microwave applications. The corrugated metallic strip with horn shaped arms offer more attenuation to EM wave than the corrugated metallic strip with conventional rectangular arms as the horn shape provides more area for the efficient trapping of the spoof surface plasmon polaritons (SSPPs), which results in the reduction of the overall size of the filter. The effect of the single defect and multiple defects at various locations are studied and analyzed in the THz and microwave region, using full wave numerical simulator CST. The study shows that the desired center frequency of the band stop and attenuation could be achieved by adjusting the position of the defects and their physical dimensions. The attenuation level and tuning frequency range is more for the proposed filter in comparison to the filter based on the corrugated metallic strip with conventional rectangular shaped. The experimental verification of the proposed tunable band notch filter is carried out in the microwave frequency band by fabricating the scaled up version, and measuring the transmission coefficient data using the network analyzer.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133280475","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939613
A. Poddar, U. Rohde, S. Koul
This paper describes the novel MMS (Möbius Metamaterial Strip) structure, for an example Möbius-Graphene topology for spintronic and Möbius-Metamaterial for VCO applications. For the validation we built 10.24 GHz MMS inspired VCO, MMS Resonator quality factor Q ≅ 25 000. The prototype unit is packaged in a ≅ 2.5in3 connectorized aluminum case1, with 600 mW DC power (5V, 120 mA), measured PN (phase noise) performance is better than −130 dBc/Hz @ 10 kHz offset from the carrier, and delivers +12 dBm at 10.24 GHz.
{"title":"Möbius-Graphene and Möbius-Metamaterial VCO","authors":"A. Poddar, U. Rohde, S. Koul","doi":"10.1109/IMARC.2016.7939613","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939613","url":null,"abstract":"This paper describes the novel MMS (Möbius Metamaterial Strip) structure, for an example Möbius-Graphene topology for spintronic and Möbius-Metamaterial for VCO applications. For the validation we built 10.24 GHz MMS inspired VCO, MMS Resonator quality factor Q ≅ 25 000. The prototype unit is packaged in a ≅ 2.5in3 connectorized aluminum case1, with 600 mW DC power (5V, 120 mA), measured PN (phase noise) performance is better than −130 dBc/Hz @ 10 kHz offset from the carrier, and delivers +12 dBm at 10.24 GHz.","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114808270","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 : 2016-12-01DOI: 10.1109/IMARC.2016.7939639
N. Narang, S. Dubey, P. S. Negi, V. N. Ojha
To study the RF absorption property of magnetic nanoparticles inside human body, an in vitro technique on tissue equivalent liquid is proposed. Magnetic nanoparticles are used to change the electrical properties of tissue equivalent liquid of 2.10GHz. Effect of short duration of low RF exposure and AC magnetic field is studied to effectively control the specific absorption rate value. Measurement results are reported for particle characterization, dielectric value, electric field strength and specific absorption rate. The studied results anticipates the effective use of magnetic particles for biomedical application, using very low RF power (15dBm) and AC magnetic field of few mT (10–30mT).
{"title":"Magnetic nanoparticle response in RF for biomedical applications","authors":"N. Narang, S. Dubey, P. S. Negi, V. N. Ojha","doi":"10.1109/IMARC.2016.7939639","DOIUrl":"https://doi.org/10.1109/IMARC.2016.7939639","url":null,"abstract":"To study the RF absorption property of magnetic nanoparticles inside human body, an in vitro technique on tissue equivalent liquid is proposed. Magnetic nanoparticles are used to change the electrical properties of tissue equivalent liquid of 2.10GHz. Effect of short duration of low RF exposure and AC magnetic field is studied to effectively control the specific absorption rate value. Measurement results are reported for particle characterization, dielectric value, electric field strength and specific absorption rate. The studied results anticipates the effective use of magnetic particles for biomedical application, using very low RF power (15dBm) and AC magnetic field of few mT (10–30mT).","PeriodicalId":341661,"journal":{"name":"2016 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122475038","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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