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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
Temperature dependent characteristics of intrinsically switchable ferroelectric composite FBARs 固有可切换铁电复合fbar的温度依赖特性
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-07-27 DOI: 10.1109/MWSYM.2015.7167036
Seungku Lee, Milad Zolfagharloo Koohi, S. A. Sis, V. Lee, A. Mortazawi
{"title":"Temperature dependent characteristics of intrinsically switchable ferroelectric composite FBARs","authors":"Seungku Lee, Milad Zolfagharloo Koohi, S. A. Sis, V. Lee, A. Mortazawi","doi":"10.1109/MWSYM.2015.7167036","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167036","url":null,"abstract":"This paper presents temperature dependent characteristics of intrinsically switchable ferroelectric composite FBARs. Ba0.5Sr0.5TiO3 and Si are used to form a composite FBAR. Measurement results show that both series and parallel resonance frequencies decrease with the temperature. The temperature coefficient of frequency is approximately -35 ppm/°C. The variation of quality factor and electromechanical coupling coefficient is less than 6.5% and 6.2% above 20 V bias.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"58 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":"91312963","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
Low-loss compact ku-band waveguide low-pass filter 低损耗紧凑型ku波段波导低通滤波器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7166773
F. Teberio, I. Arregui, A. Gomez-Torrent, E. Menargues, I. Arnedo, M. Chudzik, M. Zedler, F.-J. Gortz, R. Jost, T. Lopetegi, M. Laso
{"title":"Low-loss compact ku-band waveguide low-pass filter","authors":"F. Teberio, I. Arregui, A. Gomez-Torrent, E. Menargues, I. Arnedo, M. Chudzik, M. Zedler, F.-J. Gortz, R. Jost, T. Lopetegi, M. Laso","doi":"10.1109/MWSYM.2015.7166773","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166773","url":null,"abstract":"A lower-loss, more compact alternative to the classical E-plane corrugated waveguide low-pass filter is proposed in this paper. The novel design is capable of achieving very steep slopes in the fundamental TE10-mode frequency response along with a drastic reduction in terms of insertion loss and size. The design method is based on step-shaped bandstop elements separated by very short waveguide sections. Moreover, the matching of the novel filter is achieved by very short input/output networks based on stubs of optimized heights. A simple method is proposed allowing the designer to obtain a compact low-pass filter fulfilling stringent specifications.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"39 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73558456","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
A 64 GHz 5 mW low phase noise Gm-boosted colpitts CMOS VCO with self-switched biasing technique 采用自开关偏置技术的64 GHz 5 mW低相位噪声gm增强colpitts CMOS压控振荡器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7167025
T. N. Nguyen, P. Pande, D. Heo
{"title":"A 64 GHz 5 mW low phase noise Gm-boosted colpitts CMOS VCO with self-switched biasing technique","authors":"T. N. Nguyen, P. Pande, D. Heo","doi":"10.1109/MWSYM.2015.7167025","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167025","url":null,"abstract":"A gm-boosted Colpitts voltage-controlled oscillator (VCO) for millimeter wave application is presented in this paper. By employing a new self-switched biasing technique, the flicker noise corner of the circuit is reduced, leading to improved phase noise performance. Furthermore, trans-conductance is boosted by using a modified cross-coupled pair with parallel capacitance networks. The novel VCO is demonstrated in 65nm CMOS with 7% frequency tuning range from 62-66.5 GHz. With 1 V supply and 5 mA current, phase noise of -113.7 dBc/Hz at 10 MHz offset is measured.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"27 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75625177","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 2.5 Vppd broadband 32 GHz BiCMOS linear driver with tunable delay line for InP segmented Mach-Zehnder modulators 用于InP分段Mach-Zehnder调制器的带可调延迟线的2.5 Vppd宽带32 GHz BiCMOS线性驱动器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7166791
I. Lopez, P. Rito, D. Micusík, J. Borngraber, L. Zimmermann, A. Ulusoy, D. Kissinger
{"title":"A 2.5 Vppd broadband 32 GHz BiCMOS linear driver with tunable delay line for InP segmented Mach-Zehnder modulators","authors":"I. Lopez, P. Rito, D. Micusík, J. Borngraber, L. Zimmermann, A. Ulusoy, D. Kissinger","doi":"10.1109/MWSYM.2015.7166791","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166791","url":null,"abstract":"In this paper a linear optical modulator driver fabricated in a 0.13 μm BiCMOS SiGe:C technology is presented. The prototype is to be used in hybrid configuration with an InP segmented Mach-Zehnder modulator (SE-MZM), forming a transmitter sub-system with direct interface to the digital to analog converter (DAC), which is suitable for high order modulation formats. A tunable broadband delay line that provides for better optical and electrical delay synchronization was also implemented. The driver, designed for a 16-segments modulator, features 8 dB of gain, 32 GHz of 3-dB bandwidth and delivers a differential output swing of 2.5 Vpp, dissipating 1.65 W of DC power. The measured total harmonic distortion (THD) at 1 GHz is lower than 3.7%. The delay line allows for a ±15% of delay tuning from the nominal value of 3.68 ps per segment. To the best knowledge of the authors, this is the first time a linear driver for a SE-MZM is presented.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"30 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74880926","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
Compact tunable bandstop filter with wideband balun using IPD technology for frequency agile applications 紧凑型可调谐带阻滤波器与宽带平衡使用IPD技术的频率敏捷应用
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7167034
Ka Wai Wong, R. Mansour, G. Weale
{"title":"Compact tunable bandstop filter with wideband balun using IPD technology for frequency agile applications","authors":"Ka Wai Wong, R. Mansour, G. Weale","doi":"10.1109/MWSYM.2015.7167034","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167034","url":null,"abstract":"A multi-chip module tunable bandstop filter with wideband balun using integrated passive device (IPD) technology is proposed. By integrating barium strontium titanate (BST) based varactors with the bandstop filter, a widely continuous tuning range of 20-dB rejection from 1.3 - 2.3 GHz is achieved. A measured insertion loss of less than 1-dB is maintained up to 5 GHz. Furthermore, a novel compact wideband balun is presented. It is built by combining distributed elements with lumped elements in the IPD platform. The measured results of the balun demonstrates an operating range of 0.5 - 2.5 GHz with ±1 dB amplitude imbalance and 180 ± 20° phase imbalance in a footprint of 1.9 × 2 mm2.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"32 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74840300","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
Overview of the Delay Doppler Mapping Instrument (DDMI) for the cyclone global navigation satellite systems mission (CYGNSS) 用于气旋全球导航卫星系统任务(CYGNSS)的延迟多普勒测绘仪(DDMI)概述
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7166775
S. Gleason, C. Ruf
{"title":"Overview of the Delay Doppler Mapping Instrument (DDMI) for the cyclone global navigation satellite systems mission (CYGNSS)","authors":"S. Gleason, C. Ruf","doi":"10.1109/MWSYM.2015.7166775","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166775","url":null,"abstract":"The CYGNSS satellite constellation consists of eight satellites equipped with GNSS bi-static radar receivers which map the ocean surface scattered signal power in the vicinity of the specular reflection point using time domain and Doppler frequency filters. The satellites orbit in the same plane at an altitude of 500 km and at a orbit inclination of 35 degrees. CYGNSS will act as a GNSS bi-static scatterometer capable of sensing sea level winds in tropical cyclones, including in high precipitation conditions. An overview of the GNSS remote sensing concept is included in this paper. Subsequently, an overview of the Delay Doppler Mapping Instrument (DDMI) carried by all of the CYGNSS observatories will be presented. The DDMI uses GPS forward scattered signals of opportunity to produce delay Doppler maps (DDMs) of the scattered signal delay and frequency spreading over the surface. This paper will conclude with results from preliminary laboratory testing of the CYGNSS instrument engineering models.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"11 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75897934","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
The Doherty power amplifier 多尔蒂功率放大器
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7166705
R. Pengelly
{"title":"The Doherty power amplifier","authors":"R. Pengelly","doi":"10.1109/MWSYM.2015.7166705","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166705","url":null,"abstract":"The Doherty power amplifier (DPA) architecture, in various formats using different technologies, has been a very popular means of providing high conversion efficiencies from raw electrical power to sophisticated modulated RF and microwave signals ever since the requirements for very high power amplitude modulated (AM) radio transmitters in the mid-1930's. This paper covers not only the “original stories” of high power tube-based Doherty power amplifiers for those early AM transmitters, but also provides many examples of implementations employing a range of modern semiconductor transistor and circuit technologies covering a wide range of power levels, modulation schemes and carrier frequencies.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"75 5 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72661051","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: 110
Non-contact measurement of permittivity and thickness using planar resonators 利用平面谐振器进行介电常数和厚度的非接触测量
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7166936
Chin-Lung Yang
{"title":"Non-contact measurement of permittivity and thickness using planar resonators","authors":"Chin-Lung Yang","doi":"10.1109/MWSYM.2015.7166936","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7166936","url":null,"abstract":"This paper presents a single compound complementary split-ring resonator (SC-CSRR) to induce three resonance frequencies for non-contact measurement of the permittivity and thickness of a material. By using the proposed method, the derived relationship function of the resonance frequencies can be used to determine the thickness and the permittivity of the material under test (MUT) with various air gaps existing between the sensor ground plane and MUT. A simple and low-cost SC-CSRR measurement method for assessing the thickness and the permittivity of materials in a non-contact method was numerically analyzed and experimentally verified. At the air gap of 0.2mm, the experiments yielded average measurement errors of 4.32 % and 5.05 % for the thickness and permittivity, respectively.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"51 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76507162","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
Overview of Temporal Experiment for Storms and Tropical Systems (TEMPEST) CubeSat constellation mission 风暴和热带系统(TEMPEST)立方体卫星星座任务时间实验综述
2015 IEEE MTT-S International Microwave Symposium Pub Date : 2015-05-17 DOI: 10.1109/MWSYM.2015.7167136
S. Reising, T. Gaier, C. Kummerow, V. Chandrasekar, Shannon T. Brown, S. Padmanabhan, B. Lim, S. C. van den Heever, T. L’Ecuyer, C. Ruf, Z. Haddad, Z. Luo, S. Munchak, G. Berg, T. Koch, S. Boukabara
{"title":"Overview of Temporal Experiment for Storms and Tropical Systems (TEMPEST) CubeSat constellation mission","authors":"S. Reising, T. Gaier, C. Kummerow, V. Chandrasekar, Shannon T. Brown, S. Padmanabhan, B. Lim, S. C. van den Heever, T. L’Ecuyer, C. Ruf, Z. Haddad, Z. Luo, S. Munchak, G. Berg, T. Koch, S. Boukabara","doi":"10.1109/MWSYM.2015.7167136","DOIUrl":"https://doi.org/10.1109/MWSYM.2015.7167136","url":null,"abstract":"The proposed Temporal Experiment for Storms and Tropical Systems (TEMPEST) satellite mission addresses key science needs related to cloud and precipitation processes using a constellation of five CubeSats with identical five-frequency millimeter-wave radiometers spaced 5-10 minutes apart in orbit. This CubeSat constellation will directly observe the time evolution of clouds to study the conditions that control the transition of clouds to precipitation. The TEMPEST millimeter-wave radiometers will penetrate into the cloud to directly observe changes as the cloud begins to precipitate or ice accumulates inside the storm. TEMPEST provides observations at five millimeter-wave frequencies from 90 to 183 GHz using a single compact instrument that is well suited for a 6U CubeSat architecture and fits well within the NASA CubeSat Launch Initiative capabilities.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"48 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80386241","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: 33
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