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Triple-Barrier Resonant-Tunnelling Diode THz Detectors with on-chip antenna 片上天线三势垒共振隧穿二极管太赫兹探测器
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698124
K. Arzi, S. Clochiatti, S. Suzuki, A. Rennings, D. Erni, N. Weimann, M. Asada, W. Prost
{"title":"Triple-Barrier Resonant-Tunnelling Diode THz Detectors with on-chip antenna","authors":"K. Arzi, S. Clochiatti, S. Suzuki, A. Rennings, D. Erni, N. Weimann, M. Asada, W. Prost","doi":"10.23919/GEMIC.2019.8698124","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698124","url":null,"abstract":"Signal detection at (sub-)mm-wave frequencies via a single chip size component is discussed. The monolithic integration consists of high current density InP-based Triple Barrier Resonant Tunneling Diode into an on-chip antenna. The asymmetrical current voltage characteristic of the Triple Barrier Resonant Tunneling Diode enables signal detection at zero bias. A very high responsivity above 250 GHz is experimentally demonstrated. Low temperature DC rectification factor of the diode is investigated and a thermionic current contribution over the temperature is presented.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129945762","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: 6
Comparison of Hybrid Beamforming Systems Using Phase Shifters and Switches 采用移相器和开关的混合波束形成系统的比较
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698137
Joerg Eisenbeis, Yueheng Li, Pablo Ramos López, Jan Fischer, T. Zwick
{"title":"Comparison of Hybrid Beamforming Systems Using Phase Shifters and Switches","authors":"Joerg Eisenbeis, Yueheng Li, Pablo Ramos López, Jan Fischer, T. Zwick","doi":"10.23919/GEMIC.2019.8698137","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698137","url":null,"abstract":"Hybrid beamforming systems represent a promising architectural approach for massive multiple-input multiple-output (MIMO) systems operating at millimetre wave frequency. The hybrid beamforming approach splits the beamforming process into an analogue beamforming network and a digital beamforming of reduced size. Recent research reveals the benefit of using a combination of phase shifters and switches to further increase energy efficiency. A switch-off functionality of an arbitrary number of antenna chains is moreover interesting in times of low mobile communication cell utilisation. Within this work, we compare different hybrid beamforming architectures using phase shifters and switches. To enable a fair comparison between the different architectures RF losses within the analogue beamforming network are taken into account.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128645464","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
Fully Dielectric Rod Antenna Arrays with High Permittivity Materials 采用高介电常数材料的全介电杆天线阵列
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698141
R. Reese, H. Tesmer, E. Polat, M. Jost, M. Nickel, R. Jakoby, H. Maune
{"title":"Fully Dielectric Rod Antenna Arrays with High Permittivity Materials","authors":"R. Reese, H. Tesmer, E. Polat, M. Jost, M. Nickel, R. Jakoby, H. Maune","doi":"10.23919/GEMIC.2019.8698141","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698141","url":null,"abstract":"In this work, we investigate the effect of high permittivity materials for a fully dielectric 1 × 4 antenna array based on a multimode interference power divider. Designed at W-band, from 95 to 105 GHz, two plastic/ceramic composites L300 and L440 from Premix are used with εr = 3 and εr = 4.4, respectively. The results are compared to our published design made out of Rexolite with εr = 2.53. Compared to Rexolite, the antenna array can be already scaled down to 52% of the sectional area using L440. The input reflection is below −15 dB over the whole frequency range for both arrays. Measurement and simulation of the antenna patterns are in good agreement, with measured antenna gains between 14 to 16 dBi.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130337023","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: 5
Investigation on Optical Methods for Multi Scale Electromagnetic Simulations 多尺度电磁模拟的光学方法研究
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698120
Steffen Vogt, Jochen Jebramcik, Orell Garten, J. Barowski, I. Rolfes
{"title":"Investigation on Optical Methods for Multi Scale Electromagnetic Simulations","authors":"Steffen Vogt, Jochen Jebramcik, Orell Garten, J. Barowski, I. Rolfes","doi":"10.23919/GEMIC.2019.8698120","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698120","url":null,"abstract":"In this paper a ray tracer based on a shooting and bouncing ray (SBR) technique is presented using an optimization algorithm for precise phase calculation of the channel impulse response, which is mandatory for multi scale simulations. The radiation pattern of the antenna is computed by a full wave simulation in order to calculate the propagating wavefront. The complex open circuit voltage of the antenna is used for modelling the channel impulse response to get the accurate interference phenomena of the received waves. The algorithm is verified by comparison with a commercial full wave simulator. It is also shown that the optimization approach does not only offer high precision, but also enables fast ray tracing, which allows accurate and fast multi scale electromagnetic simulations.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130836926","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
Crosstalk Effects of Differential Thin-Film Microstrip Lines in Multilayer Motherboards 多层主板中差分薄膜微带线的串扰效应
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698163
G. N. Phung, F. Schmückle, R. Doerner, T. Fritzsch, S. Schulz, W. Heinrich
{"title":"Crosstalk Effects of Differential Thin-Film Microstrip Lines in Multilayer Motherboards","authors":"G. N. Phung, F. Schmückle, R. Doerner, T. Fritzsch, S. Schulz, W. Heinrich","doi":"10.23919/GEMIC.2019.8698163","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698163","url":null,"abstract":"With increasing demand for miniaturization the requirements for packaging and system integration are more challenging especially when more and more components are to be integrated into a compact module. In such a situation, crosstalk effects and signal degradation due to dense layouts may become critical. The focus of this paper is on the influence of neighboring elements, discontinuities and ground layer modifications in coupled thin-film microstrip lines in differential operation. Moreover, design guidelines how to mitigate these effects are provided.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114590383","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
Parametric Study of Time-Reversal Imaging for the Detection of Tumors in MRI-derived Breast Phantoms 时间反转成像在mri源性乳腺幻影中检测肿瘤的参数研究
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698133
Elham Norouzzadeh, S. Chamaani, J. Moll
{"title":"Parametric Study of Time-Reversal Imaging for the Detection of Tumors in MRI-derived Breast Phantoms","authors":"Elham Norouzzadeh, S. Chamaani, J. Moll","doi":"10.23919/GEMIC.2019.8698133","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698133","url":null,"abstract":"In this paper, the performances of two time-reversal (TR) based algorithms namely time-reversal multiple signal classification (TR-MUSIC) and decomposition of time reversal operator (DORT under its French acronym) for detecting breast cancer through UWB microwave imaging, are assessed. These assessments are carried out by changing the location of a hypothetical spherical tumor in an MRI-based numerical breast phantom through simulations in CST microwave studio environment. The recorded data is processed by the two TR-based procedures which result in the final images of cancerous breast tissues. In all cases, data acquisition has been conducted in 2 steps with and without a tumor inside the breast. During each step, UWB pulses within the wideband frequency range of 2-5 GHz are transmitted by 16-element antenna array which also receives backscattered signals from the breast tissue. In this work, we show that the implemented method can locate tumors with high precision, whether the tumor is located in the middle of the breast phantom, near to the skin or even close to the muscle wall which possesses a high reflectivity.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125746284","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
A Feed-Forward Control Based Method to Reduce the Settling Time of Phase-Locked Loops for Frequency Ramp Synthesis 一种减少频率斜坡合成锁相环稳定时间的前馈控制方法
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698159
L. Polzin, M. van Delden, T. Musch
{"title":"A Feed-Forward Control Based Method to Reduce the Settling Time of Phase-Locked Loops for Frequency Ramp Synthesis","authors":"L. Polzin, M. van Delden, T. Musch","doi":"10.23919/GEMIC.2019.8698159","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698159","url":null,"abstract":"Phase-locked loops (PPLs) are used as ultra-wideband and precise frequency synthesizers for frequency modulated continuous wave signals. Within the settling time the output frequency is not the desired multiple of the input frequency. In case of frequency ramps, the settling time reduces the usable bandwidth of the system or the maximal possible measuring rate. To reduce the settling time we present a feed-forward control (FFC) based method, which adapts the modulation of either the reference frequency or the division ratio of the frequency divider. Two noise-optimized microwave PLLs are optimized using the FFC based method. Simulation and measurement results are compared with each other and demonstrate the performance of the method. For an X-band PLL, the settling time is reduced by a factor of 15.44 to 306 ns, and for a V-band PLL by a factor of 2.3 to 228 ns.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"246 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120900185","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
Resonant Antenna Periodically Loaded with Series Capacitances for Enhanced Radiation Efficiency 周期性加载串联电容以提高辐射效率的谐振天线
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698181
B. Sievert, D. Erni, A. Rennings
{"title":"Resonant Antenna Periodically Loaded with Series Capacitances for Enhanced Radiation Efficiency","authors":"B. Sievert, D. Erni, A. Rennings","doi":"10.23919/GEMIC.2019.8698181","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698181","url":null,"abstract":"A periodic series-capacitance loaded patch antenna for increased radiation efficiency at 250 GHz in on-chip environment is presented. The antenna is described as a periodic high pass transmission line. An exemplary candidate with increased efficiency is compared to a conventional patch antenna for broadside radiation. An essential part of this paper is an equivalent circuit model explaining the increased efficiency as well as the decreased bandwidth of the structure. A dispersion diagram analysis is motivated for the design process as well as for physical insight.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132164817","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: 5
2D mm-Wave Beam Steering via Optical True-Time Delay and Leaky-Wave Antennas 基于光学实时延迟和漏波天线的二维毫米波波束控制
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698162
M. Steeg, P. Lu, J. Tebart, A. Stöhr
{"title":"2D mm-Wave Beam Steering via Optical True-Time Delay and Leaky-Wave Antennas","authors":"M. Steeg, P. Lu, J. Tebart, A. Stöhr","doi":"10.23919/GEMIC.2019.8698162","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698162","url":null,"abstract":"In this paper we outline a concept to provide 2-dimensional photonic-assisted beam steering at mm-wave frequencies by utilizing leaky-wave antennas and integrated optical beam forming networks. Thereby, heterodyne detection is employed to tune the RF for leaky-wave antenna (LWA) beam scanning by remotely changing the optical frequency of a tunable laser. Beam steering in the other dimension is provided via an optical true time delay (TTD) beam forming network, which is compatible to the LWA beam scanning even for multiple GHz of bandwidth. Through wavelength-division multiplexing and optical filters, multiple beams can be generated even at the same RF. To prove the concept a system based on discrete components is set up and used to demonstrate 2D beam steering of a 1 Gbit/s data signal in the 60 GHz band over 1.5 m wireless distance.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116836403","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: 3
Fully-Hermetic 71-86 GHz WR12 Coherent Photonic Mixer Providing an RF Output Power up to +15 dBm 全密封71-86 GHz WR12相干光子混频器，提供高达+15 dBm的射频输出功率
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698156
B. Khani, S. Makhlouf, J. Lackmann, A. Steffan, J. Honecker, A. Stöhr
{"title":"Fully-Hermetic 71-86 GHz WR12 Coherent Photonic Mixer Providing an RF Output Power up to +15 dBm","authors":"B. Khani, S. Makhlouf, J. Lackmann, A. Steffan, J. Honecker, A. Stöhr","doi":"10.23919/GEMIC.2019.8698156","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698156","url":null,"abstract":"Novel compact fully-hermetic E-band (71-86 GHz) coherent photonic mixer (CPX), featuring a rectangular waveguide WR12 output and providing an RF output power up to +15 dBm, is reported in this work. According to our knowledge, this is the highest reported output power level radiated directly from a photonic mixer module in the E-band frequency range. The fabricated WR12-CPX allows direct optical-to-wireless conversion of optical baseband or IF-band signals, e.g. for radio-over-fiber (RoF) fronthauling in mobile communications. The module comprises an InP-based balanced-PD (BPD) chip, a GaAs HEMT MMIC medium power amplifier, and a laminate-based grounded coplanar waveguide to rectangular waveguide (GCPW-WR12) transition. The transition couples the optically generated, e.g. via heterodyning, millimeter-wave signal from the output of the BPD chip to the WR12. It is based on a double-slot antenna structure and developed on a Rogers RT/duroid 5880 laminate with a thickness of 127 µm. The presented GCPW-WR12 transition enables the development of fully-hermetic photonic packages, which is required to improve the durability of the BPD chip. The transition design is optimized by utilizing a 3D electromagnetic simulation software for achieving a wide operational bandwidth with an average insertion loss (IL) of about 1.6 dB and a return loss (RL) higher than 15 dB in the frequency range of 71-86 GHz. Finally, the RF responsivity of the WR12-CPX module and the hermeticity of the transition are experimentally characterized.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124771139","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
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