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2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)最新文献

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RFID tags with double rectangular spiral antennas, system stability optimization under delayed electromagnetic interference and parasitic effects 双矩形螺旋天线RFID标签延迟电磁干扰和寄生效应下系统稳定性优化
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360367
O. Aluf
{"title":"RFID tags with double rectangular spiral antennas, system stability optimization under delayed electromagnetic interference and parasitic effects","authors":"O. Aluf","doi":"10.1109/COMCAS.2015.7360367","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360367","url":null,"abstract":"In this article, we discuss the crucial subject of RFID tags with double rectangular spiral antennas, system stability optimization under delayed electromagnetic interference and parasitic effects. Two antennas are connected in series by microstrip line with parasitic effects. We define V<sub>1</sub>(t) as the voltage on the first antenna inductance and V<sub>2</sub>(t) as the voltage on the second antenna inductance. Due to electromagnetic interference there are differences in time delays, with respect to the first and second rectangular spiral antennas voltages and voltage derivatives. The delayed voltages are V<sub>1</sub>(t - τ<sub>1</sub>) and V<sub>2</sub>(t - τ<sub>2</sub>) respectively (τ<sub>1</sub> ≠ τ<sub>2</sub>) and the delayed voltage derivatives are dV<sub>1</sub>(t - Δ<sub>1</sub>)/dt, dV<sub>2</sub>(t - Δ<sub>2</sub>)/dt respectively Δ<sub>μ</sub>. Additionally, there is a delay in time for the microstrip parasitic effects Δ<sub>μ</sub>. The double rectangular spiral antenna system equivalent circuit can be described in terms of delayed differential equations, depending on variable parameters and delays. The stability of a given steady state is determined by the graphs of some function of τ<sub>1</sub>, τ<sub>2</sub>, Δ<sub>1</sub>, Δ<sub>2</sub> and Δ<sub>μ</sub>.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132113626","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}
引用次数: 1
A 16-nm FinFET 16-GHz differential LC-VCO 16纳米FinFET 16 ghz差分LC-VCO
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360451
Ioannis Zographopoulos, F. Plessas, Emmanouil A. Antonopoulos, F. Foukalas
{"title":"A 16-nm FinFET 16-GHz differential LC-VCO","authors":"Ioannis Zographopoulos, F. Plessas, Emmanouil A. Antonopoulos, F. Foukalas","doi":"10.1109/COMCAS.2015.7360451","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360451","url":null,"abstract":"In this paper, a 16-GHz FinFET differential Voltage-Controlled Oscillator (VCO) is presented. Filtering is used at the common source node of the cross-coupled transistors as well as other techniques to effectively lower phase noise. The oscillator is designed using 16nm FinFET Predictive Technology Models (PTMs) [1], achieves -106.553dBc/Hz at 1MHz offset, and dissipates 1.071mA from a 0.85V supply.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134142411","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}
引用次数: 1
Study of a thin applicator for Microwave Ablation of liver malignant tumor 肝恶性肿瘤微波消融薄敷器的研究
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360381
N. Tal, Dor Oz, Y. Leviatan
{"title":"Study of a thin applicator for Microwave Ablation of liver malignant tumor","authors":"N. Tal, Dor Oz, Y. Leviatan","doi":"10.1109/COMCAS.2015.7360381","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360381","url":null,"abstract":"Microwave Ablation (MWA) is a minimally invasive method for treatment of malignant tumors. This paper studies a thin interstitial applicator that produces a nearly spherical ablation zone in malignant liver tumor and investigates how the frequency of operation can affect the quality of MWA procedure. The paper then proposes a similar thin applicator but much shorter for MWA.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123754508","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}
引用次数: 2
Multi-level 20 Gbit/s PSSS transmission using a linearity-limited 240 GHz wireless frontend 采用线性受限240 GHz无线前端的20 Gbit/s多电平PSSS传输
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360436
T. Messinger, K. KrishneGowda, F. Boes, D. Meier, A. Wolf, A. Tessmann, R. Kraemer, I. Kallfass
{"title":"Multi-level 20 Gbit/s PSSS transmission using a linearity-limited 240 GHz wireless frontend","authors":"T. Messinger, K. KrishneGowda, F. Boes, D. Meier, A. Wolf, A. Tessmann, R. Kraemer, I. Kallfass","doi":"10.1109/COMCAS.2015.7360436","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360436","url":null,"abstract":"In this paper, we investigate the applicability of parallel sequence spread spectrum (PSSS) modulation in high bandwidth millimeter wave communication systems using a 240GHz monolithic microwave integrated circuit (MMIC) based radio frequency (RF) frontend. The transmitter (Tx) and receiver (Rx) are connected directly via an attenuator in an incoherent back-to-back setup using two independent local oscillator (LO) sources. Although the system was restricted to phase modulated signals due to limited linearity when using conventional modulated signals, a transmission using a multivalent PSSS sequence with a spectral efficiency of 1 bit/s/Hz succeeded thanks to the introduced coding gain. The recovered data is evaluated in terms of eye opening and bit error rate (BER). At a gross data rate of 20 Gbit/s, an eye opening of 40% and a BER of 5.4 × 10-5 were observed.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126639930","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}
引用次数: 9
A novel concept for RF-system-in-package high volume production measurements 射频封装系统大批量生产测量的新概念
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360361
A. Rosenberg, N. Buadana, Amir Lin, Roni Livney
{"title":"A novel concept for RF-system-in-package high volume production measurements","authors":"A. Rosenberg, N. Buadana, Amir Lin, Roni Livney","doi":"10.1109/COMCAS.2015.7360361","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360361","url":null,"abstract":"Today more and more multifunction RF-SIP (System-In-Package) modules, in SMD (Surface-Mount-Technology) package style, come into high volume production phase. There are many challenges in automatic RF measurements of RF-SIP-SMD devices. Each different SIP must have dedicated load-board that contains multiple RF connectors as well as a rigorous RF considerations and design. Furthermore, RF test equipment with complicated calibration of high frequency transmission path is needed. The module described in this paper is a multifunction Doppler detector based of silicon chip packaged in standard QFN molding process. It contains internal VCO, down-converter, active IF-filter and active IF amplifier. This work presents the development and application for testing a high volume production, using a novel load-board that makes RF test equipment and RF calibrations unnecessary. All measurable parameters are translated to analog DC voltages in a smart and pre-calibrated way. This makes the RF-SIP-SMD measurements easier and one can set voltage limits, low and high, by a simple digital voltmeter connected directly to a computer. Limits can be changed easily according to desired SIP performance, in purpose to decide if the measured device is “PASS” or “FAIL”.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123442297","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}
引用次数: 0
A 300 GHz multi-stage balanced variable gain amplifier with Tandem-X couplers 采用串联- x耦合器的300 GHz多级平衡变增益放大器
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360382
I. Dan, D. Meier, S. Wagner, A. Leuther, A. Tessmann, H. Massler, I. Kallfass
{"title":"A 300 GHz multi-stage balanced variable gain amplifier with Tandem-X couplers","authors":"I. Dan, D. Meier, S. Wagner, A. Leuther, A. Tessmann, H. Massler, I. Kallfass","doi":"10.1109/COMCAS.2015.7360382","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360382","url":null,"abstract":"This paper presents the design and measured performance of an H-Band (220-325 GHz) submilimeter-wave monolithic integrated circuit (S-MMIC) implementing a balanced variable-gain low-noise amplifier (VGA) based on Tandem-X couplers for use in next generation communication systems. This amplifier will be used as first stage in an integrated wideband receiver for 300 GHz wireless communication for indoor environments. It provides low-noise pre-amplification as well as gain control in front of a quadrature down-conversion mixer.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114600495","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}
引用次数: 0
RF-DAC challenges for mm-Wave transmitter in CMOS process 毫米波发射机在CMOS工艺中的RF-DAC挑战
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360484
Tomer Ben-Oz, E. Cohen, E. Socher
{"title":"RF-DAC challenges for mm-Wave transmitter in CMOS process","authors":"Tomer Ben-Oz, E. Cohen, E. Socher","doi":"10.1109/COMCAS.2015.7360484","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360484","url":null,"abstract":"This paper presents a part of the digital concept in the form of a mm-Wave Digital to Analog Radio Frequency Converter design. The mm-Wave transmitter is I/Q Cartesian RFDAC based on all-digital modulator concepts and challenges in the 28 nm CMOS process. Results and ideas presented are based on simulations and design requirements. The RFDAC implementation is a direct Base Band to RF conversion which offers a competitive solution to the classical RF transmitter chain. Final design is a class B current steering RFDAC for improved efficiency. In addition, the linearity vs. efficiency tradeoffs of the IQ Cartesian combining is discussed, assuming the simplified model of IQ interactions presented as well as considerations for beamforming architecture. Expected ENOB limitation before calibration would be of 7 bits reaching an EVM of 30dB.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115248778","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}
引用次数: 0
Josephson generation is good for pixel in the array of passive imaging system 约瑟夫森生成有利于被动成像系统阵列像素的生成
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360354
J. Qiu, Shengchang Lan, Alexander Denisov, F. Soldovieri, M. He
{"title":"Josephson generation is good for pixel in the array of passive imaging system","authors":"J. Qiu, Shengchang Lan, Alexander Denisov, F. Soldovieri, M. He","doi":"10.1109/COMCAS.2015.7360354","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360354","url":null,"abstract":"One of the critical technologies is combining both of superconductive and semiconductor technologies on a single substrate, including creating Josephson junction (JJ) near the gate of a semiconductor transistor. The use of JJ in self-pumping mode regime as one of the heterodyne detection methods can provide a new trend for designing modern passive terahertz imaging system. Further development will allow to realize multi-spectrum systems with electronically tunable band. This paper discussed the theoretical analysis on the noise characteristics of the JJ as the pixels in the array of passive imaging system. The analytical result shows that JJ is a possible solution to improve the sensitivity of modern multi-spectrum passive imaging systems.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121630377","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}
引用次数: 0
Noise characteristic analysis of multi-port network in active electrically scanned array radar 有源电扫描阵列雷达多端口网络噪声特性分析
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360369
Yu Hongbiao
{"title":"Noise characteristic analysis of multi-port network in active electrically scanned array radar","authors":"Yu Hongbiao","doi":"10.1109/COMCAS.2015.7360369","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360369","url":null,"abstract":"Noise power and noise figure are detailedly analysed and deduced in theory for mult-port network in active electrically scanned array(AESA) radar, especially in AESA radar. Mathematical expressions of output noise power and total noise figure of network are given out under various conditions. Accordingly, this provides a basis of theories for multi-port network and radar receiver system design, the test method of array noise figure. Finally two application examples are gived to verify accuracy of the formula.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127932720","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}
引用次数: 0
Simulation of lossy multiconductor transmission lines and application of an algorithm to reduce crosstalk 损耗多导体传输线的仿真及一种减少串扰算法的应用
2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) Pub Date : 2015-12-21 DOI: 10.1109/COMCAS.2015.7360362
R. Ianconescu, V. Vulfin
{"title":"Simulation of lossy multiconductor transmission lines and application of an algorithm to reduce crosstalk","authors":"R. Ianconescu, V. Vulfin","doi":"10.1109/COMCAS.2015.7360362","DOIUrl":"https://doi.org/10.1109/COMCAS.2015.7360362","url":null,"abstract":"In a multiconductor transmission lines (MTL) of N+1 conductors it is possible to transmit N independent signals and the reason most applications use less signals is the huge crosstalk and return loss that arises when transmitting so many signals. In a previous work we developed an algorithm for transmitting the maximum number of possible signals without crosstalk or return loss, for lossless lines. The current work simulates and analyzes lossy MTL and tests the above algorithm on lossy lines.","PeriodicalId":431569,"journal":{"name":"2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128060068","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}
引用次数: 1
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