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2015 IEEE MTT-S International Microwave Symposium最新文献

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A post-fabrication tuning method for a varactor-tuned microstrip filter using the implicit space mapping technique 一种利用隐式空间映射技术的变容调谐微带滤波器制作后调谐方法
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167087
Song Li, P. Laforge
{"title":"A post-fabrication tuning method for a varactor-tuned microstrip filter using the implicit space mapping technique","authors":"Song Li, P. Laforge","doi":"10.1109/MWSYM.2015.7167087","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167087","url":null,"abstract":"A post-fabrication tuning method that uses the space mapping techniques to directly determine the tuning voltages of a fabricated varactor-tuned microstrip combline filter is presented. The fabricated filter and its measured results replace the simulation based fine model traditionally used in the space mapping technique. Implicit space mapping is implemented to map the circuit based coarse model and the capacitance values of the varactor diodes of the fabricated filter. The proposed design procedure is presented and it is applied to tune a fabricated 4-pole varactor diode tuned microstrip filter with a center frequency of 1 GHz and an absolute bandwidth of 200 MHz.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"28 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89586291","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
Hybrid structure-based broadband field-rotation balun for millimeter-wave applications 基于混合结构的毫米波宽带场旋转平衡器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167048
J. Moghaddasi, K. Wu
{"title":"Hybrid structure-based broadband field-rotation balun for millimeter-wave applications","authors":"J. Moghaddasi, K. Wu","doi":"10.1109/MWSYM.2015.7167048","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167048","url":null,"abstract":"A broadband balun structure is developed through a hybrid combination of substrate integrated waveguide (SIW) and antipodal fin-line topologies. The signal at the balanced port is divided between two unbalanced ports using a broadband SIW power divider which is capable of an equal power division with low phase and amplitude imbalance over a wide bandwidth. The 180° phase difference is made by the rotation of E-field polarization through the antipodal fin-line sections in two unbalanced branches. Due to the independency of this phase shifting with respect to propagation constant and wavelength, a constant 180° phase difference is achieved in a wide range of frequency. Using a printed circuit board (PCB) process, the proposed balun is prototyped and demonstrated for operation at millimeter-wave frequencies from 70 GHz to 90 GHz. The measurement results show an excellent performance with very low insertion loss of less than 1 dB and 180° phase difference between the unbalanced ports in a broad band of frequency.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"81 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83947775","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 single-element CMOS-based electronic de-embedding technique with TRL level of accuracy 基于单元件cmos的电子脱嵌技术，精度达到TRL级
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7166871
Jun-Chau Chien, A. Niknejad
{"title":"A single-element CMOS-based electronic de-embedding technique with TRL level of accuracy","authors":"Jun-Chau Chien, A. Niknejad","doi":"10.1109/MWSYM.2015.7166871","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166871","url":null,"abstract":"A single-element de-embedding algorithm with accuracy comparable to TRL is proposed. By performing impedance modulation using CMOS transistors, reflection measurements with ideal shorts are generated from the measured two-port S-parameters. Such measurements with known termination are further utilized for finding the solutions to the test fixtures. As a single structure is sufficient for the extraction of the device S-parameter, saving not only the silicon area but also improving the accuracy due to reduced number of probing. Experimental results up to 65 GHz have validated the proposed single-element approach.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86685710","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
350mW G-band medium power amplifier fabricated through a new method of 3D-copper additive manufacturing 采用3d -铜增材制造新方法制备350mW g波段中功率放大器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167037
H. Kazemi, D. Miller, A. Mohan, Z. Griffith, Y. Jin, J. Kwiatkowski, L. Tran, M. Crawford
{"title":"350mW G-band medium power amplifier fabricated through a new method of 3D-copper additive manufacturing","authors":"H. Kazemi, D. Miller, A. Mohan, Z. Griffith, Y. Jin, J. Kwiatkowski, L. Tran, M. Crawford","doi":"10.1109/MWSYM.2015.7167037","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167037","url":null,"abstract":"A new design methodology and 3D additive fabrication process is used to demonstrate a 16-Way medium power amplifier (MPA) at G-band frequency range. Advanced high bandwidth, high gain and power InP DHBT three stage MMIC is used for the MPA integration, capable of 50mW output power and >20 dB small signal gain. Novel micro-machined WR4 to CPW transitions are used to accommodate the MMICs and connect to the 16way splitter-combiner network. These transitions use wire-bonds demonstrating the capability at sub-mmw frequency range. The broadband transitions showcase <;0.5 dB insertion loss and exhibit high tolerance and repeatability due to their batch additive manufacturing. The MPA was assembled using 16 mounted MMICs in transitions and demonstrated >10 dB small signal gain from 200-240 GHz. Large signal characterization showcased high saturated output power of 450mW at 205 GHz, 400 mW at 215 GHz, 350mW at 225 GHz and 283 mW at 233 GHz in an ultra-compact volume of 3.6 cm3 representing a functional power density of >7.7 mW/cm3.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"16 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84403651","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: 18
A planar 75% efficient GaN 1.2-GHz DC-DC converter with self-synchronous rectifier 带自同步整流器的平面75%效率GaN 1.2 ghz DC-DC变换器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7166833
I. Ramos, M. Ruiz, J. A. García, D. Maksimović, Z. Popovic
{"title":"A planar 75% efficient GaN 1.2-GHz DC-DC converter with self-synchronous rectifier","authors":"I. Ramos, M. Ruiz, J. A. García, D. Maksimović, Z. Popovic","doi":"10.1109/MWSYM.2015.7166833","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166833","url":null,"abstract":"This paper presents the design and characterization of a DC-DC converter operating at 1.2GHz with a maximum efficiency of 75% at 4.6W output power, and with a maximum output power of 13W at 58% efficiency. The microwave converter consists of a GaN class-E power amplifier coupled to a GaN class-E rectifier. The circuit is planar and exhibits a power density of approximately 0.65W/cm3 at the 75% efficiency point. The rectifier can be operated with input gate drive or selfsynchronously with a single RF input.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"76 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80184419","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: 7
25.3 GHz, 4.1 mW VCO with 34.8% tuning range using a switched substrate-shield inductor 25.3 GHz, 4.1 mW VCO，使用开关基板屏蔽电感器，调谐范围34.8%
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7166890
Pawan Agarwal, P. Pande, D. Heo
{"title":"25.3 GHz, 4.1 mW VCO with 34.8% tuning range using a switched substrate-shield inductor","authors":"Pawan Agarwal, P. Pande, D. Heo","doi":"10.1109/MWSYM.2015.7166890","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166890","url":null,"abstract":"A wide tuning range CMOS VCO based on a switched substrate-shield inductor is presented. The proposed VCO uses a high quality factor, switchable inductor with smaller parasitics for frequency tuning range extension. Inductance is switched by controlling the eddy currents in a modified, floating substrate-shield. Using the proposed design, a 29 % inductance switching is achieved while maintaining a high quality factor of > 15.5. The prototype VCO shows an excellent frequency tuning range of 34.8 % and a phase noise of -120.1 dBc/Hz at 10 MHz offset for 25.3 GHz carrier frequency. This VCO has a FOMT of 192.1±2.5 dBc/Hz across the tuning range with only 4.1 mW power consumption.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"18 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81638413","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: 13
Digital predistorter characterization using extended orthogonal Chebyshev polynomials 利用扩展正交切比雪夫多项式表征数字预失真器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167046
Lei Ding, Fernando A. Mujica, Zigang Yang
{"title":"Digital predistorter characterization using extended orthogonal Chebyshev polynomials","authors":"Lei Ding, Fernando A. Mujica, Zigang Yang","doi":"10.1109/MWSYM.2015.7167046","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167046","url":null,"abstract":"As communication signals become more dynamic and have wider bandwidth, it is desirable to have a tool that helps to understand digital predistortion (DPD) solution space for a given power amplifier (PA). Two-tone measurements have been used extensively for PA characterization. However, direct application of two-tone measurements to DPD characterization is difficult because of the correlation in conventional polynomial basis functions. In this paper, we establish a technique for characterizing the DPD solution space using 2-carrier narrowband signals by adopting the memory polynomial model and extending the orthogonal Chebyshev polynomials. This approach allows a direct view of different intermodulation products in the DPD solutions for various 2-carrier signals. We performed characterization on a Class AB PA and found interesting characteristics of the solution space. Based on the findings, we propose a new DPD adaptation scheme for frequency hopped 2-carrier GSM signals. The proposed scheme achieves excellent linearization performance for the frequency-hopped GSM signals.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"2 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83511627","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
Reconstruction of non-simultaneous impulsive sources with superresolution in TLM by computational time reversal TLM中非同时超分辨率脉冲源的计算时间反转重建
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167031
W. Hoefer, P. So
{"title":"Reconstruction of non-simultaneous impulsive sources with superresolution in TLM by computational time reversal","authors":"W. Hoefer, P. So","doi":"10.1109/MWSYM.2015.7167031","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167031","url":null,"abstract":"In this paper, the reconstruction of non-simultaneous impulsive point sources by computational time reversal in Transmission Line Matrix (TLM) modeling is demonstrated for the first time. By extension of previous work on the reconstruction of simultaneous sources, it is shown that a computational time domain model of Maxwell's equations, such as TLM, can translate several non-simultaneous electromagnetic events in space-time into a single time sequence, and back into space-time with mesh resolution and machine accuracy. This capability of TLM to modify spatial information by processing a time signal or its spectrum, is an important further step towards a generalized procedure for synthesizing the geometry of microwave structures directly from their specifications.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"6 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84037137","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
Educating Signal Integrity engineers for challenges in high-speed electronics 培养信号完整性工程师应对高速电子领域的挑战
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167030
R. Torres‐Torres
{"title":"Educating Signal Integrity engineers for challenges in high-speed electronics","authors":"R. Torres‐Torres","doi":"10.1109/MWSYM.2015.7167030","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167030","url":null,"abstract":"The purpose of this paper is to present insight about the contents and topics to be covered in a Signal Integrity graduate-level course. Special emphasis is paid to pointing out the importance of carefully teaching the key concepts associated with transmission lines and how these concepts can be extended to more complex structures and devices for several applications. The prerequisite courses are discussed, as well as the most relevant industry-oriented topics currently in this discipline.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"15 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74769926","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
Spectrum-aware jammer suppression using evanescent-mode cavity filters 利用倏逝模腔滤波器抑制频谱感知干扰
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167021
M. Abu Khater, D. Peroulis
{"title":"Spectrum-aware jammer suppression using evanescent-mode cavity filters","authors":"M. Abu Khater, D. Peroulis","doi":"10.1109/MWSYM.2015.7167021","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167021","url":null,"abstract":"This work presents the first spectrum-aware closed-loop tunable jammer suppression system, utilizing evanescent-mode cavity filters. The presented system automatically sweeps a bandstop filter (BSF) across its tuning range and detects the location of the jammer in the spectrum by reading the output power of the filter. Once the frequency of the jammer is detected, the BSF is automatically tuned to suppress it. The system operates in real-time as it does not require a special hardware to directly sense the filter's resonators. The system is implemented and tested under different frequency conditions. The tuning range is 1.8-2.16 GHz, and it can suppress jammers 20 MHz away from the signal by 41-45 dB using a three-pole BSF. This suppression is sufficient to bring the symbol recovery rate up to at least 99.9%, from less than 17% when no jammer suppression is employed. Error vector magnitudes are also experimentally studied for the 16 QAM modulation scheme that is used in the measurements.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81460387","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
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