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2018 22nd International Microwave and Radar Conference (MIKON)最新文献

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Highly efficient harmonic-tuned GaN HEMT power amplifier for a 2.45 GHz ISM band 用于2.45 GHz ISM频段的高效谐波调谐GaN HEMT功率放大器
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8404994
Marcin Góralczyk
{"title":"Highly efficient harmonic-tuned GaN HEMT power amplifier for a 2.45 GHz ISM band","authors":"Marcin Góralczyk","doi":"10.23919/MIKON.2018.8404994","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8404994","url":null,"abstract":"This paper presents a design of highly efficient high power amplifier with CGH40010 transistor. The amplifier provides more than 15W of output power and 61% PAE over a 2.4 GHz to 2.5 GHz frequency range. A method of harmonic tuning is applied in the design. By the use of this method it was possible to achieve even 30% more power than the transistor is specified to deliver, while maintaining high gain and efficiency.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131699631","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
A new memory based ordered statistic-CFAR processing for coherent detection 一种新的基于内存的相干检测有序统计- cfar处理方法
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405157
Vincent Corretja, S. Kemkemian, J. Petitjean
{"title":"A new memory based ordered statistic-CFAR processing for coherent detection","authors":"Vincent Corretja, S. Kemkemian, J. Petitjean","doi":"10.23919/MIKON.2018.8405157","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405157","url":null,"abstract":"Adaptive radar detection in clutter and noise environment is a key issue for maritime coherent detection. This paper proposes a new version of the so-called ordered statistic constant false alarm rate technique which exploits past and current information of the environment to optimize the detection processing. The effectiveness of the memory-based detection concept is proved on synthetic and real data recorded by an X-band experimental radar using high range and Doppler resolutions waveform at low grazing angle. Furthermore, a comparative study on coherent detection is performed between classical detectors and the proposed approach in terms of probability of false alarm and detection.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115997463","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
Investigation of electrical properties of fully wearable antenna for ISM applications 应用于ISM的全可穿戴天线的电性能研究
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405163
M. Ahmed, M. F. Ahmed, A. A. Shaalan
{"title":"Investigation of electrical properties of fully wearable antenna for ISM applications","authors":"M. Ahmed, M. F. Ahmed, A. A. Shaalan","doi":"10.23919/MIKON.2018.8405163","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405163","url":null,"abstract":"This paper aimed to take closer steps towards real wearability by investigating the possibilities of designing and fabricating highly efficient and fully flexible wearable microstrip patch antenna for operating frequency of 5.8 GHz as a center frequency ISM (Industrial, Scientific, and Medical) band. Two types of conducting materials have been used for conducting parts: conventional metal plane and woven electro-textile material, while a non-conducting jeans fabric has been used as antenna substrate material. The dielectric constant εr = 1.78, and loss tangent tanδ = 0.085 of the jeans substrate measured by using two different methods. Also, the electromagnetic properties of the electro-textile are studied in details. A set of comparative results of the proposed design are presented and discussed. Finally, the proposed design is simulated by CST simulator version 2016, fabricated using folded copper and measured by Agilent 8719ES VNA The measured results agree well with the simulated results.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114939282","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
Classification of ground moving radar targets using convolutional neural network 基于卷积神经网络的地面运动雷达目标分类
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405154
Esra Al Hadhrami, Maha Al Mufti, Bilal Taha, N. Werghi
{"title":"Classification of ground moving radar targets using convolutional neural network","authors":"Esra Al Hadhrami, Maha Al Mufti, Bilal Taha, N. Werghi","doi":"10.23919/MIKON.2018.8405154","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405154","url":null,"abstract":"In this paper, we propose a new approach for Pulsed Doppler Radar Automatic Target Recognition (ATR). Target classification depends highly on the quality of the training database, the extracted features and the classification algorithm. Radar echo signals captured by the Radar show the Doppler effect produced by moving targets. Those echo signals can be processed in different domains to attain distinctive characteristics of targets that can be used for target classification. The proposed approach is based on utilizing a pre-trained Convolutional Neural Network (CNN) as a feature extractor whereas the output features are used to train a multiclass Support Vector Machine (SVM) classifier. Our approach was tested on RadEch database of 8 ground moving targets classes. Our approach outperformed the state-of-the-art methods, using the same database, and reached an accuracy of 99%.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123566982","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
Dual band GNSS antenna for missile applications 用于导弹的双频GNSS天线
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405160
Olcay Yigit, Y. Aşçı, K. Yeğin
{"title":"Dual band GNSS antenna for missile applications","authors":"Olcay Yigit, Y. Aşçı, K. Yeğin","doi":"10.23919/MIKON.2018.8405160","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405160","url":null,"abstract":"Antennas for Global Navigation Satellite Systems are critical for sounding rockets and missiles. Due to limited space available within the structure, microstrip antennas offer several benefits in providing an inexpensive method for telemetry and satellite positioning systems. Most of the wraparound microstrip antennas are linearly polarized due to rotation of the structure. However, advanced receivers can resolve missile rotation if the antenna supports circular polarization of GNSS. In this study, we propose a dual band antenna for this purpose.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134293099","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
Design of immittance inverters and phase inverters with non-foster elements 带非培育元件的阻抗逆变器和相位逆变器的设计
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405203
Bair Buyantuev, D. Kholodnyak
{"title":"Design of immittance inverters and phase inverters with non-foster elements","authors":"Bair Buyantuev, D. Kholodnyak","doi":"10.23919/MIKON.2018.8405203","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405203","url":null,"abstract":"Non-Foster negative capacitances and inductances are attractive elements that allow designing broadband microwave devices and providing extra design flexibility due to their specific frequency dependence of reactance. Since this frequency dependence cannot be obtained from passive circuits according to Foster's theorem, the active circuits known as negative impedance converters (NICs) are used to realize non-Foster elements. Characteristics of NIC circuits depend strongly on parameters of active components used. We investigated how characteristics of a NIC to realize a negative capacitance for the GHz frequency range depend on the transistor critical frequency. It is demonstrated in the paper that a proper selection of transistors makes it possible to realize negative capacitances with a low variation over a wide frequency band. Possibilities of using the realized negative capacitance to design reactance networks of immittance inverters and broadband phase inverters were then investigated. The im-mittance inverters with non-Foster elements can be employed for filter design with an advantage of no need for subtraction of negative capacitances. The broadband phase inverter which is a cascade of two identical immittance inverters can be used to design a broadband 180° switchable-channel phase shifter with a low phase shift error.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133247708","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 of effects of grooves on antenna performance for Ku band antenna Ku波段天线沟槽对天线性能影响的研究
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405241
Y. Aşçı, M. Pehlivan, Olcay Yigit, K. Yeğin
{"title":"Investigation of effects of grooves on antenna performance for Ku band antenna","authors":"Y. Aşçı, M. Pehlivan, Olcay Yigit, K. Yeğin","doi":"10.23919/MIKON.2018.8405241","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405241","url":null,"abstract":"Effects of grooves on antenna performance parameters such as gain, VSWR, HPBW and SLL are investigated for aperture type Ku band antenna. The antenna has dual cavity step transition from WR75 waveguide with two grooves on the aperture plane. Simulations shows that groove shape plays an important role in antenna performance. With careful design of the grooves, performance of a single antenna matches to that of an two-element array antenna.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123175755","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
A hybrid two stage 20-W GaN HEMT Ku-band power amplifier for very small aperture terminals 用于非常小孔径终端的混合式两级20 w GaN HEMT ku波段功率放大器
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8404993
F. Rautschke, D. Maassen, S. Vehring, G. Boeck
{"title":"A hybrid two stage 20-W GaN HEMT Ku-band power amplifier for very small aperture terminals","authors":"F. Rautschke, D. Maassen, S. Vehring, G. Boeck","doi":"10.23919/MIKON.2018.8404993","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8404993","url":null,"abstract":"This contribution is about a two stage power amplifier (PA) in hybrid microwave integrated circuit (MIC) technology covering the extended Ku-band uplink (13.75–14.5 GHz) for satellite communication. A high relative permittivity alumina substrate and a 250 nm GaN bare-die technology have been chosen to realize the matching circuits of the amplifier. A systematic design approach using simulation-based multi-frequency source- and load-pull analyses in order to find optimum load and source impedances for maximum output power was applied for the proposed PA. The measured output power is about 14 W for a continuous wave (CW) signal with a PAE of more than 22% in the frequency range of interest. Additionally, modulated measurements including a modern pre-distortion technique state an average output power of 12 W and a peak power of about 22 W achieving a PAE of 20% using a 8PSK signal.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114150152","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 compact ultra-wideband mmWave radar sensor at 80 GHz based on a SiGe transceiver chip (Focused session on highly-integrated millimeter-wave radar sensors in SiGe BiCMOS technologies) 基于SiGe收发芯片的80ghz紧凑型超宽带毫米波雷达传感器(重点讨论SiGe BiCMOS技术中高度集成的毫米波雷达传感器)
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405221
N. Pohl, T. Jaeschke, Simon Küppers, C. Bredendiek, D. Nüßler
{"title":"A compact ultra-wideband mmWave radar sensor at 80 GHz based on a SiGe transceiver chip (Focused session on highly-integrated millimeter-wave radar sensors in SiGe BiCMOS technologies)","authors":"N. Pohl, T. Jaeschke, Simon Küppers, C. Bredendiek, D. Nüßler","doi":"10.23919/MIKON.2018.8405221","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405221","url":null,"abstract":"This papers describes the capabilities of modern SiGe semiconductor technologies for the highly-integrated realization of Frequency-Modulated Continuous Wave (FMCW) Radar sensors. Based on an ultra-wideband oscillator, synthesizer and receiver, an ultra-wide bandwidth of 25 GHz around a center frequency of 80 GHz is demonstrated. This enables high-resolution radar measurements with a multi-target resolution of 7.1 mm and an absolute distance accuracy better than 1 μm, which enables new potentials for contact-free distance measurements even in harsh environments.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114407052","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: 19
Efficient implementation of greedy multipoint model-order reduction technique for fast wide-band frequency analysis of microwave structures 贪婪多点模型降阶技术在微波结构快速宽带频率分析中的高效实现
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405251
Damian Szypulski, Martyna Czarniewska, G. Fotyga
{"title":"Efficient implementation of greedy multipoint model-order reduction technique for fast wide-band frequency analysis of microwave structures","authors":"Damian Szypulski, Martyna Czarniewska, G. Fotyga","doi":"10.23919/MIKON.2018.8405251","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405251","url":null,"abstract":"The aim of this paper is to present the efficient implementation of the multipoint greedy model order reduction approach, which is used for fast three-dimensional frequency-domain electromagnetic analysis by means of the finite element method. The efficiency and accuracy of the proposed approach is highlighted by the numerical examples, which aim to compute the wide frequency-band scattering parameters of the two bandpass microwave filters and dielectric resonator antenna.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121906031","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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