S. J. Shanoor, Shubhankar Mishra, Ankit Kumar, P. Rajeswari, D. Meena
{"title":"High Frequency RF Signal Filtering Using Photonic Technology for Radar Applications","authors":"S. J. Shanoor, Shubhankar Mishra, Ankit Kumar, P. Rajeswari, D. Meena","doi":"10.1109/IMARC.2017.8449692","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449692","url":null,"abstract":"Most of the present communication applications have switched onto the photonic filtering as it gives numerous advances over its counterparts. Reconfigurable filter design is gaining popularity for applications having complex hardware circuitry. The paper discusses about a reconfigurable optical filter by Wavelength Selective Switching using Liquid Crystal on Silicon technology for filtering of Radio and Microwave frequency signals. The main aim of the work is to explore the feasibility of usage of photonic filters along with fiber links in radar signal distribution networks.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"87 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125111217","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}
Prolay Verma, Puja Srivastava, D. Singh, A. Bhattacharya
{"title":"Low Error Ku-Band 5-Bit Digital Attenuator MMIC","authors":"Prolay Verma, Puja Srivastava, D. Singh, A. Bhattacharya","doi":"10.1109/IMARC.2017.8449724","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449724","url":null,"abstract":"A 5-bit digital attenuator MMIC covering 11-13.5GHz Ku-band frequencies have been designed, fabricated and tested. Double recess 0.25 m GaAs/InGaAs/AIGaAs pHEMT process is used for realizing this low phase error (> 1.6 deg RMS) attenuator. It is highly accurate and shows exceptional high yield of performance. The measured dynamic range is 15.5 dB with input and output return loss of 18dB. The measured compression point at 12.5GHz is +17dBm. The chip measures 9 mm2.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122679135","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}
{"title":"Gold coated cobalt nanoparticles as SAR controlling agent for hyperthermia applications","authors":"B. V. Naik, S. Dubey","doi":"10.1109/IMARC.2017.8611243","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8611243","url":null,"abstract":"In the present paper, we make an attempt to understand the effect of magnetic nanoparticle in the presence of low power RF exposure for hyperthermia application. In light of that, we have considered cobalt nanoparticle (CoNP), and gold coated cobalt nanoparticles (AuCoNP) dispersed in two different media ethanol and water to study RF exposure. Measurement in two different dispersive medium for nano particles is carried out only to understand the actual effect of CoNP and AuCoNP. The proposed measurements being carried out on CoNP and AuCoNP dispersed in tissue equivalent liquid prepared as per IEEE-1528, 2013. Both nanoparticles are used as a controlling agent for Electric (E)- field distribution and E-field intensity hence they can also be used as Specific absorption rate (SAR) controlling agents. The study used a reliable and standardized microwave field exposure system to achieve better temperature control using low-level exposure power (at high frequency, i.e., 2.45GHz). The minimum requirements of in vitro studies have been proposed, analyzed and designed. The developed exposure setup uses a Gigahertz Transverse Electromagnetic (GTEM) cell resonant at 2.45GHz. The tissue equivalent liquids with 5nm sized CoNP and AuCoNP nanoparticles are exposed in 50mm glass beakers. The E- field distribution is calculated at varied microwave power for both particles.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127537483","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}
P. Jain, A. Thourwal, S. Bansal, N. Gupta, S. Kumar, Ashutosh Kumar Singh, S. Samanta, N. Sardana
{"title":"T-Shaped Resonator for X-Band Applications","authors":"P. Jain, A. Thourwal, S. Bansal, N. Gupta, S. Kumar, Ashutosh Kumar Singh, S. Samanta, N. Sardana","doi":"10.1109/IMARC.2017.8449678","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449678","url":null,"abstract":"This article presents theoretically and experimentally the T-shaped resonator with negative index for microwave X-band frequencies (8–12 GHz). The T-shaped resonator is designed on the substrate FR-4 to operate over multiple bands from 8.45-8.68 GHz, 9.47-9.68 GHz and 11.32-11.44 GHz theoretically and 8.46-8.66 GHz, 9.33-9.60 GHz and 11.43-11.60 GHz experimentally. The negative permittivity, permeability and refractive index of the structure have been verified using transmission-reflection (TR) technique using S parameters. The proposed structure resonates for X Band applications such as radar and short wave communication.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121616826","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}
{"title":"Compact Dual Band Varactor-Tunable Unequal-Length Branch-Line Hybrid","authors":"Amarjit Kumar, N. Pathak","doi":"10.1109/IMARC.2017.8449682","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449682","url":null,"abstract":"We report a concurrent dual-band varactor-tuned branch-line coupler (BLC). It is based on an unequal-length dual-band BLC. A total of two varactors with single dc control voltage are used for tuning the dual-frequency-band. Meandering of both varactor-connected transmission lines pointing inward to the center of hybrid makes our coupler very compact in size. It has an overall dimension of 0.4 g x 0.22 g, where g is the guided wavelength corresponding to the lower band center frequency. Simulation and measurement results along with fabricated prototype of our proposed device are provided. Lower and upper frequency band tunable-bandwidth is 193- and 160- MHz, respectively.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130341058","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}
Hairui Liu, C. Viegas, J. Powell, H. Sanghera, Andrew Whimster, M. Henry, B. Alderman
{"title":"High-Power Single and Power-Combined 180 GHz Schottky Frequency Doublers","authors":"Hairui Liu, C. Viegas, J. Powell, H. Sanghera, Andrew Whimster, M. Henry, B. Alderman","doi":"10.1109/IMARC.2017.8449707","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449707","url":null,"abstract":"This paper presents the results for single and power-combined 180 GHz frequency doublers. The frequency doubler comprising of a single GaAs Schottky diode circuit has a measured peak efficiency of 34% and bandwidth of 11%. At an input power of 500 mW, this single chip generates 109 mW at 180 GHz. In a power-combined configuration with two devices adding in-phase, the device demonstrates 105 mW of output power for 500 mW input and is thus capable of generating more power for higher input power.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125143688","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}
D. Garg, Vijay Kumar, M. M. Kumar, Y. Verma, S. Chaturvedi
{"title":"Low Noise Amplifier at Ka Band","authors":"D. Garg, Vijay Kumar, M. M. Kumar, Y. Verma, S. Chaturvedi","doi":"10.1109/IMARC.2017.8449723","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449723","url":null,"abstract":"This paper presents a low noise amplifier (LNA) design methodology and challenges at Ka Band using BiCMOS technology. A two stage single ended cascode narrowband LNA has been designed and fabricated using 130nm technology. A gain of 22.3dB and noise figure of 3.9dB at 35GHz with −23 dBm 1dB input compression point achieved in measurement results. The LNA consumes only 4.4mA of current from a 1.8V supply voltage and takes chip area, with a size of 1.2mm by 0.7mm including pads.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116607753","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}
{"title":"Database Technique for Tumor Detection and Dielectric Profile Estimation","authors":"Priyansha Kaurav, S. Koul, A. Basu","doi":"10.1109/IMARC.2017.8449728","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449728","url":null,"abstract":"Bio-medical imaging techniques help in detection the tumor and finding the exact location of tumor cells inside the body. But these techniques are time consuming and the setup required is bulky. They also require a prior information about dielectric properties of tissue to give accurate imaging results. Quite useful bits of information regarding tumor and dielectric profile can be extracted from simple measurement and simulation procedure. Earlier, dielectric profile of biological tissue was provided using dielectric probe and waveguide fixture techniques. These methods provided reasonable estimates, but the setup which was used is limited to small portion of tissues and were not able to accommodate body part as a whole. In this paper, a new technique is devised to analyze the dielectric profile of breast tissues with and without tumor cells using free space transmission method and database approach. The measurement setup is used to obtained the transmission parameters in free space keeping the tissue under test in between the transmitter and receiver antenna. Database of simulated transmission parameter is created keeping all sets of variations in tissue types using Debye model. The complex permittivity is then arrived at by matching the measured transmission parameter data with the database. This technique was validated using simulated realistic breast phantoms and tested with results from mouse tumor cells.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128389120","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}
{"title":"The state of the art of electronically tunable compact bandpass filters design","authors":"D. Kholodnyak","doi":"10.1109/IMARC.2017.8611007","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8611007","url":null,"abstract":"An overview of the electronically tunable RF and microwave bandpass filters using small-size resonators is presented. Design approaches, advances, trends, and challenges are discussed. A special emphasis is made on the design issues which are not always taking into account but can have a significant impact on tunable filter characteristics.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121905225","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}
{"title":"A Power Efficient Ka-Band MMIC Active Frequency Doubler with Output Amplifier","authors":"B. Biswas, G. Kumar","doi":"10.1109/IMARC.2017.8449690","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449690","url":null,"abstract":"Design and realization of a two stage, 17.5 GHz to 35.0 GHz active frequency doubler with output amplifier using two GaAs based pHEMTs has been presented in this paper in MMIC form. Fabricated MMIC chip has achieved 10 dB of conversion gain at 35 GHz for 0 to 5 dBm of input power at 17.5 GHz. Saturated output power obtained is 15 dBm. Fractional bandwidth of more than 14% has been observed for 2 dB variation in output power. Total dc power consumption of the chip is 110 mW. Fundamental and spurious rejection is in excess of 45 dBc. Phase noise degradation through the circuit is close to 6 dB, which is the minimum theoretical value. The designed power efficient frequency doubler is highly stable, and capable of producing high quality output spectrum with sufficient power.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123553038","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}