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2013 IEEE MTT-S International Microwave Symposium Digest (MTT)最新文献

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Miniaturized quasi-asymmetric forward-wave coupled-line coupler with arbitrary coupling level 任意耦合电平的小型化准非对称前向波耦合线耦合器
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697546
Jungje Ha, Yongshik Lee
{"title":"Miniaturized quasi-asymmetric forward-wave coupled-line coupler with arbitrary coupling level","authors":"Jungje Ha, Yongshik Lee","doi":"10.1109/MWSYM.2013.6697546","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697546","url":null,"abstract":"A design method is demonstrated for quasi-asymmetric forward-wave coupled-line couplers. By loading a symmetric coupled line asymmetrically with shunt capacitors, a miniaturized forward-wave coupler is constructed with an arbitrary maximum coupling level. Most importantly, elimination of lengthy impedance transformers makes the method the most effective miniaturization method. Experimental results are provided for a 3-dB coupler with a miniaturization rate of 92.9% at 5 GHz.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129329205","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
Circuit stability theory for non-Foster circuits 非福斯特电路的电路稳定性理论
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697633
S. D. Stearns
{"title":"Circuit stability theory for non-Foster circuits","authors":"S. D. Stearns","doi":"10.1109/MWSYM.2013.6697633","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697633","url":null,"abstract":"The successful design of non-Foster circuits requires tests for stability that are accurate and reliable. It is widely known by designers of amplifiers and active circuits that popular tests for the stability of 2-port and n-port circuits can give incorrect results. Despite periodic debate over the past 50 years, the validity of Rollett's K-factor test has never been proved mathematically; it was argued only on physical grounds. We present linear non-Foster circuits that serve as explicit counterexamples to Rollett's test. One counterexample circuit is given that is unconditionally stable according to the full statement of Rollett's test including Rollett's proviso. Yet the circuit is provably unstable with simple resistive termination, in direct contradiction of Rollett. A second counterexample circuit is shown that gives the stronger result that Rollett's test cannot be repaired, and indeed many other stability tests are defective too. Armed with these results, a different approach to the design of stable circuits is discussed that has enabled us to build stable non-Foster antenna impedance matching circuits. An example of a stable non-Foster broadband impedance matching circuit for a small loop antenna is given. The design of the circuit was made possible by using a new capability available in certain circuit EDA CAD tools.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127174602","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: 32
Fish-bone resonator with new coupling structure and its applications to wideband bandpass filters 新型耦合结构鱼骨谐振器及其在宽带带通滤波器中的应用
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697520
Q. Chu, He Zhu, X. Tian, Xiao Hu Wu
{"title":"Fish-bone resonator with new coupling structure and its applications to wideband bandpass filters","authors":"Q. Chu, He Zhu, X. Tian, Xiao Hu Wu","doi":"10.1109/MWSYM.2013.6697520","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697520","url":null,"abstract":"In this paper, a novel fish-bone resonator is presented by cascading multiple cross-shaped resonators. Characterized by transmission line model analysis, it is found that the resonances of the proposed fish-bone resonator can be conveniently controlled, which results in a compact size. On the other hand, in order to constructed wideband bandpass filter, a novel coupling structure is studied in connection with the special configuration of the fish-bone resonator. Besides, transmission zeros are generated by the proposed fish-bone resonator, thus an ultra-wide stopband is achieved. To illustrate the concept, a wideband bandpass filter with high performance is constructed and measured by two-stage fish-bone resonators. The measured results are in good agreement with the full-wave simulation results. Both simulated and measured results are in good agreement to verify the predicted results.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130593247","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
Design considerations for stacked Class-E-like mmWave high-speed power DACs in CMOS CMOS中堆叠类毫米波高速功率dac的设计考虑
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697742
A. Chakrabarti, H. Krishnaswamy
{"title":"Design considerations for stacked Class-E-like mmWave high-speed power DACs in CMOS","authors":"A. Chakrabarti, H. Krishnaswamy","doi":"10.1109/MWSYM.2013.6697742","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697742","url":null,"abstract":"This work describes design considerations for realizing high power mmWave DACs with high efficiency under modulation based on switching-PA DAC cells. A stacked Class-E-like SOI CMOS power amplifier is turned ON/OFF by means of digital circuitry to sustain high-speed 1-bit ASK (OOK) modulation, while high average efficiency is achieved by means of supply-switching. Factors affecting modulation speed, dynamic power dissipation, impact of digital path delays and supply/ground bounce are discussed and design guidelines are provided. A fully-integrated 47GHz prototype has been fabricated in IBM's 45nm SOI CMOS technology. Measurement results yield a saturated output power of 18.2 dBm with a peak PAE of 15.3% under static (continuous-wave) operation, and high-speed OOK modulation (upto 1Gbps and beyond) is demonstrated with high average efficiency.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132483139","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
Tunable integrated output impedance transformer on a power amplifier for 4G applications 用于4G应用的功率放大器上的可调集成输出阻抗变压器
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697421
Y. Jato, A. Herrera, G. De Astis, F. Huin
{"title":"Tunable integrated output impedance transformer on a power amplifier for 4G applications","authors":"Y. Jato, A. Herrera, G. De Astis, F. Huin","doi":"10.1109/MWSYM.2013.6697421","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697421","url":null,"abstract":"This paper presents the design of a modified Ruthroff-type transmission line transformer with tuning capability. The variation of a capacitor included in the structure allows the output impedance of a power amplifier to be changed in order to prevent degradation of the efficiency due to changes in the needs of the amplifier load produced by variations in the fabrication process. The impedance transformer integrated with a WCDMA power amplifier implemented in CMOS technology has been measured obtaining high efficiency, with values of 44.7 % and 43.3 % despite the load variation and an output power of 28.9 dBm and 28.7 dBm for two different chips.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131962002","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
GaN MMIC Doherty power amplifier solutions for backhaul microwave links 用于回程微波链路的GaN MMIC Doherty功率放大器解决方案
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697577
V. Camarchia, P. Colantonio, T. Emanuelsson, G. Ghione, F. Giannini, R. Giofré, L. Piazzon, M. Pirola, R. Quaglia, T. Wegeland
{"title":"GaN MMIC Doherty power amplifier solutions for backhaul microwave links","authors":"V. Camarchia, P. Colantonio, T. Emanuelsson, G. Ghione, F. Giannini, R. Giofré, L. Piazzon, M. Pirola, R. Quaglia, T. Wegeland","doi":"10.1109/MWSYM.2013.6697577","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697577","url":null,"abstract":"In this paper, two 5W power amplifier solutions for microwave backhaul at 7GHz are presented. They are based on 0.25μm GaN on SiC MMIC technology, and rely on advanced Doherty schemes. The first solution maximizes the back-off efficiency at center frequency, reaching a value around 50% at 7dB OBO. The second MMIC is optimized for a wideband behavior, with efficiency exceeding 40% on a 15% relative bandwidth. Characterization results and system level behavior of the two proposed MMICs are compared and discussed.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128813921","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 novel miniaturized polarization orthogonalizing active retrodirective antenna array for satellite use 一种新型卫星小型化极化正交有源反向定向天线阵列
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697371
C. Wu, Jun H. Choi, S. Kawasaki, T. Itoh
{"title":"A novel miniaturized polarization orthogonalizing active retrodirective antenna array for satellite use","authors":"C. Wu, Jun H. Choi, S. Kawasaki, T. Itoh","doi":"10.1109/MWSYM.2013.6697371","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697371","url":null,"abstract":"In this work, we propose an active retrodirective antenna (RDA) array with polarization orthogonalizing features that uses only single antenna to transmit and receive in unit element. Hence this arrangement substantially reduces the size of the RDA and makes it feasible to be further implemented into a 2D array. The RDA array is able to retransmit the signal to the interrogator location with the signal that is orthogonally polarized to the interrogating signal. Furthermore, the proposed RDA is designed to be operated at 7.1GHz and 8.4GHz for the uplink and downlink of the satellite use, respectively.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125393411","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
A silicon-based, fully integrated pulse electron paramagnetic resonance system for mm-wave spectroscopy 一种基于硅的、完全集成的毫米波波谱脉冲电子顺磁共振系统
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697730
Charles Chen, P. Seifi, A. Babakhani
{"title":"A silicon-based, fully integrated pulse electron paramagnetic resonance system for mm-wave spectroscopy","authors":"Charles Chen, P. Seifi, A. Babakhani","doi":"10.1109/MWSYM.2013.6697730","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697730","url":null,"abstract":"An integrated transceiver for time-domain EPR spectroscopy is implemented using a 0.13μm SiGe BiCMOS technology. The system utilizes an on-chip resonator to study time domain relaxation behavior of paramagnetic samples, i.e. materials with unpaired electron spins. The single-chip EPR spectrometer consists of an EPR resonator, 22-26GHz tunable VCO, a programmable pulse generation block, RF buffer and power amplifier, a multi-stage LNA, and down-conversion mixer all in a 2mm2-size chip area.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126877322","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
Quantization noise cancelation scheme for digital quadrature RF pulse encoding 数字正交射频脉冲编码的量化噪声消除方案
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697367
Henri Ruotsalainen, H. Arthaber, G. Magerl
{"title":"Quantization noise cancelation scheme for digital quadrature RF pulse encoding","authors":"Henri Ruotsalainen, H. Arthaber, G. Magerl","doi":"10.1109/MWSYM.2013.6697367","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697367","url":null,"abstract":"Quadrature type pulsed radio frequency (RF) signal encoding combined with class-S switched-mode power amplification (SMPA) constitute a potential solution for high efficiency RF transmitters. However, the digital center frequency adjustment for such encoding methods is limited by quantization noise folding. In this paper, a novel quantization noise cancelation scheme is proposed that in an ideal case suppresses the folding distortion components completely. In addition, a low complexity practical solution easily embedable in an existing modulator architecture is given. According to the measurement results, up to 7 dB improvement in signal-to-noise-and-distortion ratio was achieved over a total center frequency tuning range of 160 MHz using a 20 MHz LTE signal excitation.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126360086","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
Piezoelectric reliable RF-MEMS switch with narrow contact-gap using wafer-bond packaging 采用晶圆键合封装的窄触隙可靠RF-MEMS压电开关
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697667
T. Nakatani, T. Katsuki, H. Okuda, O. Toyoda, S. Ueda, F. Nakazawa
{"title":"Piezoelectric reliable RF-MEMS switch with narrow contact-gap using wafer-bond packaging","authors":"T. Nakatani, T. Katsuki, H. Okuda, O. Toyoda, S. Ueda, F. Nakazawa","doi":"10.1109/MWSYM.2013.6697667","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697667","url":null,"abstract":"This paper presents a low-cost packaged and reliable piezoelectric-actuated RF-MEMS switch for mobile communications. We fabricated a stiff single crystal silicon (SCS) beam that has an actuator and a contact bump on an SOI wafer without backside etching. We bonded the wafer to a ceramic cap wafer, directly packaging a switch with a contact gap of 0.5-μm not using sacrificial layers. The switch operated up to 1 billion cycles keeping a low insertion loss (<;0.4 dB up to 5GHz) at 20-V driving voltage. The surface mountable SPST switch was 1.6 × 1.1 × 0.8 mm in size.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122951759","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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