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2014 IEEE MTT-S International Microwave Symposium (IMS2014)最新文献

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A SiGe ku-band frequency doubler with 50% bandwidth and high harmonic suppression 具有50%带宽和高谐波抑制的SiGe ku波段倍频器
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848283
N. Mazor, O. Katz, B. Sheinman, R. Carmon, R. Ben-Yishay, Run Levinger, D. Elad
{"title":"A SiGe ku-band frequency doubler with 50% bandwidth and high harmonic suppression","authors":"N. Mazor, O. Katz, B. Sheinman, R. Carmon, R. Ben-Yishay, Run Levinger, D. Elad","doi":"10.1109/MWSYM.2014.6848283","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848283","url":null,"abstract":"A compact ×2 frequency multiplier covering all ku band is implemented in IBM 0.13μm SiGe technology. The transformer coupled circuit uses a common base configuration working in B- class mode and utilizes transmission lines properties to achieve harmonic suppression. The doubler covers a 3dB frequency range between 12.2 GHz to 20.4 GHz with a saturated output power above 9 dBm. The fundamental frequency is suppressed by over 27 dBc and the 4th harmonic is suppressed by more than 25 dBc across frequency band. The core design occupies only 550 μm × 620 μm and consumes 37 mW from a 2.7 V supply.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132491946","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: 8
A 190-GHz amplifier with gain-boosting technique in 65-nm CMOS 采用增益增强技术的65纳米CMOS 190 ghz放大器
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848290
Di-Sheng Siao, Jui-Chih Kao, Yuan-Hung Hsiao, Yao-Wen Hsu, Yu-Ming Teng, G. Huang, Kun-You Lin, Huei Wang
{"title":"A 190-GHz amplifier with gain-boosting technique in 65-nm CMOS","authors":"Di-Sheng Siao, Jui-Chih Kao, Yuan-Hung Hsiao, Yao-Wen Hsu, Yu-Ming Teng, G. Huang, Kun-You Lin, Huei Wang","doi":"10.1109/MWSYM.2014.6848290","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848290","url":null,"abstract":"This paper demonstrates a 190-GHz, 3 stages CMOS amplifier based on cascode topology using 65-nm standard RF CMOS 1P9M technology. To design a high gain amplifier at G-band using CMOS process, the gain-boosting technique is adopted to enhance the maximum stable gain (MSG) performance in this work. Based on the experimental results, the peak gain is 16.3 dB at 190 GHz, with 3-dB bandwidth from 188 to 192 GHz, and the core area of chip size is 0.29 mm2.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132519999","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: 10
A scalable compact small-signal mHEMT model accounting for distributed effects in sub-millimeter wave and terahertz applications 考虑亚毫米波和太赫兹应用中分布效应的可扩展紧凑小信号mHEMT模型
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848318
M. Ohlrogge, M. Seelmann-Eggebert, A. Leuther, H. Massler, A. Tessmann, R. Weber, D. Schwantuschke, M. Schlechtweg, O. Ambacher
{"title":"A scalable compact small-signal mHEMT model accounting for distributed effects in sub-millimeter wave and terahertz applications","authors":"M. Ohlrogge, M. Seelmann-Eggebert, A. Leuther, H. Massler, A. Tessmann, R. Weber, D. Schwantuschke, M. Schlechtweg, O. Ambacher","doi":"10.1109/MWSYM.2014.6848318","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848318","url":null,"abstract":"In this paper we utilize a new approach for a small signal model which is scalable from very small to rather large transistors in a wide frequency range from 50 MHz up to 500 GHz. We show that with increasing frequency and decreasing transistor size we need to take into account termination effects at the open ends of the transistor electrodes. This new approach is based on a decomposition of the transistor into multiport sections. These sections are simulated individually by an electromagnetic field solver and then parameterized by compact networks. The model is verified by S-parameter measurements up to 450 GHz.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130802519","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
Active integrated probes for tumor detection and ablation 用于肿瘤检测和消融的主动集成探针
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848647
Y. Kwon, Kihyun Kim, Sung-Hyun Hwang, Taeyoon Seo, Yong-Kweon Kim
{"title":"Active integrated probes for tumor detection and ablation","authors":"Y. Kwon, Kihyun Kim, Sung-Hyun Hwang, Taeyoon Seo, Yong-Kweon Kim","doi":"10.1109/MWSYM.2014.6848647","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848647","url":null,"abstract":"This paper presents micromachined planar coaxial probes integrated with the active circuits for tumor detection and low-power cancer ablation. A multi-state reflectometer (MSR) consisting of a dual-band PLL, an impedance tuner, two power detectors, and a directional coupler is employed to extract broadband dielectric parameters of the tumor cells. The active circuits are integrated on the micromachined silicon planar probe with an open-ended coaxial aperture. A similar active probe is also demonstrated for cancer ablation, where a voltage controlled oscillator, power amplifiers are integrated on a micromachined silicon probe together with power detectors and a directional coupler. To further enhance the contrast and sensitivity, magnetic nanoparticle (MNP)-assisted hyperthermia has been demonstrated using microwave integrated heat applicator for the first time.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"22 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130862353","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: 4
VSWR-protected 90 W L-band AlGaN/GaN power amplifier vswr保护的90w l波段AlGaN/GaN功率放大器
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848302
M. van Heijningen, G. van der Bent, E. van der Houwen, A. Chowdhary, F. V. van Vliet
{"title":"VSWR-protected 90 W L-band AlGaN/GaN power amplifier","authors":"M. van Heijningen, G. van der Bent, E. van der Houwen, A. Chowdhary, F. V. van Vliet","doi":"10.1109/MWSYM.2014.6848302","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848302","url":null,"abstract":"Solid-state power amplifiers need protection against reflected power at the output caused by load mismatch. The standard method for protection is to include a ferrite-based isolator at the output. The isolator will redirect all reflected power to a dissipating load resistor and will ensure that the output of the amplifier always sees a 50 Ω load. Disadvantage of such isolator is the large size, weight and limited possibility for integration and miniaturization. In this work a protection circuit is presented that can replace the isolator and still offer full protection against any power reflection at the output of the amplifier. This protection circuit is based on measurement of the reflected power and a feedback loop to adjust the gain of a driver-stage, also known as fold-back protection. The driver-stage and output stage are implemented in AlGaN/GaN MMIC and power-bar technology. This protection circuit has been demonstrated on a 2-stage, 90 W L-band power amplifier, intended to be used in satellite payloads for various space applications.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130249283","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: 4
Time-domain envelope measurements and simulations of pulse-to-pulse stability in microwave power amplifiers 微波功率放大器脉冲间稳定性的时域包络测量与仿真
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848335
J. Delprato, D. Barataud, M. Campovecchio, G. Neveux, C. Tolant, P. Eudeline
{"title":"Time-domain envelope measurements and simulations of pulse-to-pulse stability in microwave power amplifiers","authors":"J. Delprato, D. Barataud, M. Campovecchio, G. Neveux, C. Tolant, P. Eudeline","doi":"10.1109/MWSYM.2014.6848335","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848335","url":null,"abstract":"This paper presents a new measurement system based on heterodyne receiver to characterize the impact of irregular pulsed signals on the pulse-to-pulse (P2P) stability of microwave power amplifiers. The aim of this work is to provide a way of identifying the key design parameters and specifications of power amplifiers, such as thermal management, which have a critical impact on P2P stability. This paper is focused on the impact of thermal effects by applying a worst-case radar waveform that integrates a long silence (i.e. off-time) between each sequence of periodic bursts of pulses. Time-domain envelope measurements and simulations of P2P stability are compared for a 10W S-band GaN HEMT amplifier, with particular regard to thermal time constants of the nonlinear electro-thermal model.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127958868","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: 11
Joint dual-band crest factor reduction and digital predistortion of power amplifiers driven by inter-band carrier aggregated signals 带间载波聚合信号驱动功率放大器双频峰因数联合降低与数字预失真
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848542
Bilel Fehri, S. Boumaiza
{"title":"Joint dual-band crest factor reduction and digital predistortion of power amplifiers driven by inter-band carrier aggregated signals","authors":"Bilel Fehri, S. Boumaiza","doi":"10.1109/MWSYM.2014.6848542","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848542","url":null,"abstract":"In this paper, a signal amplitude estimator for inter-band carrier aggregated signals is proposed to assist with the effective application of dual-band crest factor reduction (CFR) and digital predistortion (DPD) for enhanced dual-band power amplifier (PA) performance. As proof of concept validation, the dual-band CFR was applied to reduce the peak to average power ratio of a carrier aggregated signal formed by a 10 MHz LTE signal, centered at 750 MHz, and a 15 MHz LTE signal, centered at 900 MHz, by 2.5 dB while maintaining an error vector magnitude of better than 4%. The resultant signal was then pre-processed by a dual-band Volterra DPD and used to linearize a 20 W broadband Doherty PA. The joint application of dual-band CFR and DPD succeeded in enhancing the performance of the PA by allowing a linear average output power of about 4 W, and drain efficiency of about 48%, with an adjacent channel leakage ratio of about -50 dBc.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123259876","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: 8
A converged Rx SAW duplexer module with embedded substrate for multi-band RF front-end 一种用于多波段射频前端的嵌入式基板融合Rx SAW双工模块
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848617
M. Iwaki, J. Tsutsumi, Tabito Tanaka, M. Ueda, Y. Satoh
{"title":"A converged Rx SAW duplexer module with embedded substrate for multi-band RF front-end","authors":"M. Iwaki, J. Tsutsumi, Tabito Tanaka, M. Ueda, Y. Satoh","doi":"10.1109/MWSYM.2014.6848617","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848617","url":null,"abstract":"A novel surface acoustic wave (SAW) duplexer module called a converged Rx duplexer module is proposed. The Rx ports of two duplexers for different frequency bands are combined using passive matching components in the module, which reduces the number of Rx pins by half. A feasibility study including the issue of isolation between the bands is discussed and a prototype composed of four duplexers (two converged-Rx ports) is fabricated using the stacked-duplexer layout. The fabricated module features reduced Rx Pins, an area reduced by about 40%, and a sufficient isolation of 55 dB between the converged frequency bands.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126580460","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: 4
High-resolution transmission-type (TT) dispersive delay structure (DDS) based on reflection-type (RT) elements 基于反射型(RT)元件的高分辨率传输型(TT)色散延迟结构(DDS)
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848627
Lianfeng Zou, C. Caloz
{"title":"High-resolution transmission-type (TT) dispersive delay structure (DDS) based on reflection-type (RT) elements","authors":"Lianfeng Zou, C. Caloz","doi":"10.1109/MWSYM.2014.6848627","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848627","url":null,"abstract":"It is shown that reflection-type (RT) dispersive delay structure (DDS) units are inherently superior to transmission-type (TT) DDS units in terms of analog signal processing resolution, since they provide a higher group delay swing. However, RT-DDS units suffer from the drawback of requiring a circulator to separate the input and output signals. In order to solve this issue, the paper presents a TT-DDS unit formed by combining two identical RT-DDS units through a hybrid coupler. The proposed TT-DDS unit is experimentally demonstrated in a two-unit DDS to provide a resolution enhancement of more than one order of magnitude compared to its purely TT-DDS counterpart.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125733968","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
Coherent frequency-domain microwave-induced thermoacoustic imaging 相干频域微波热声成像
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848489
Hao Nan, A. Arbabian
{"title":"Coherent frequency-domain microwave-induced thermoacoustic imaging","authors":"Hao Nan, A. Arbabian","doi":"10.1109/MWSYM.2014.6848489","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848489","url":null,"abstract":"Microwave-induced thermoacoustic (TA) imaging combines the soft-tissue contrast of microwave signals with the resolution of ultrasound (US) imaging without posing any ionizing radiation. Prior work uses short but powerful pulses from a large vacuum source to excite tissue and requires an output power in excess of several kW to achieve sufficient SNR. This poses safety concerns as well as to render the imager large and bulky. In this paper, we propose and demonstrate stepped-frequency continuous-wave (SFCW) and frequency-modulated continuous-wave (FMCW) approaches for microwave-induced thermoacoustic imaging at 2GHz. In the experiment, the FMCW approach achieves a 26dB SNR improvement compared to pulse approach with the same peak output power, averaging window, and receiver gain. To the best of our knowledge this is the first demonstration of full coherency across microwave and acoustic domains with the thermo-elastic response and successful demonstration of frequency-domain microwave TA imaging.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126818139","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
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