Attenuation

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In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. (Wikipedia.org)






Conferences related to Attenuation

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2018 13th European Microwave Integrated Circuits Conference (EuMIC)

The EuMIC conference is jointly organized by GAAS® Association and EuMA and is the premierEuropean technical conference for RF microelectronics. Aim of the conference is to promote thediscussion of recent developments and trends, and to encourage the exchange of scientific andtechnical information covering a broad range of high-frequency related topics, from materialsand technologies to integrated circuits and applications, that will be addressed in all of theiraspects: theory, simulation, design and measurement. If you are interested in anything aboutmicrowave and RF IC's, the EuMIC conference is an exceptional venue to learn about the latestadvances in the field and meet recognized experts from both Industry and Academia.

  • 2017 12th European Microwave Integrated Circuits Conference (EuMIC)

    The EuMIC conference is jointly organized by GAAS® Association and EuMA and is the premier European technical conference for RF microelectronics. Aim of the conference is to promote the discussion of recent developments and trends, and to encourage the exchange of scientific and technical information covering a broad range of high-frequency related topics, from materials and technologies to integrated circuits and applications, that will be addressed in all of theiraspects: theory, simulation, design and measurement. If you are interested in anything about microwave and RF IC's, the EuMIC conference is an exceptional venue to learn about the latest advances in the field and meet recognized experts from both Industry and Academia.

  • 2016 11th European Microwave Integrated Circuits Conference (EuMIC)

    The EuMIC conference is jointly organized by GAAS® Association and EuMA and is the premier European technical conference for RF microelectronics. Aim of the conference is to promote the discussion of recent developments and trends, and to encourage the exchange of scientific and technical information covering a broad range of high-frequency related topics, from materials and technologies to integrated circuits and applications, that will be addressed in all of their aspects: theory, simulation, design and measurement. If you are interested in anything about microwave and RF IC's, the EuMIC conference is an exceptional venue to learn about the latest advances in the field and meet recognized experts from both Industry and Academia.

  • 2015 10th European Microwave Integrated Circuits Conference (EuMIC)

    The EuMIC conference is jointly organized by GAAS® Association and EuMA and is the premier European technical conference for RF microelectronics. Aim of the conference is to promote the discussion of recent developments and trends, and to encourage the exchange of scientific and technical information covering a broad range of high-frequency related topics, from materials and technologies to integrated circuits and applications, that will be addressed in all of their aspects: theory, simulation, design and measurement. If you are interested in anything about microwave and RF IC’s, the EuMIC conference is an exceptional venue to learn about the latest advances in the field and meet recognized experts from both Industry and Academia.

  • 2014 9th European Microwave Integrated Circuits Conference (EuMIC)

    The EuMIC conference is jointly organized by GAAS

  • 2013 European Microwave Integrated Circuit Conference (EuMIC)

    RF and microwave devices for telecommunication and sensor systems including UMTS/LTE, LMDS and other systems working in the microwave and millimetre -wave range. Covering recent development and trends in physical fundamentals, physical and behavoural modeling, microwave and opto-electric devices and monolithic design in GaAs, InP, SiGe, GaN and SiC technologies.

  • 2012 European Microwave Integrated Circuit Conference (EuMIC)

    Microwave integrated circuits: modelling, simulation and characterisation of devices and circuits; technologies and devices; circuit design and applications.

  • 2011 European Microwave Integrated Circuit Conference (EuMIC)

    RF and microwave devices for telecommunication and sensor systems including UMTS/LTE, LMDS and other systems working in the microwave and millimetre-wave range. Covering recent development and trends in physical fundamentals, physical and behavoural modeling, microwave and opto-electric devices and monolithic design in GaAs, InP, SiGe, GaN and SiC technologies.

  • 2010 European Microwave Integrated Circuits Conference (EuMIC)

    EuMIC is the leading conference for MMICs/RFICs and their applications in Europe. The aim of the conference is to promote the discussion of recent developments and trends, and encourage the exchange of scientific and technical information on physical fundamentals, material technology, process development and technology, physics based and empirical behavioral modeling of microwave and optoelectronic active devices and design of monolithic ICs

  • 2009 European Microwave Integrated Circuits Conference (EuMIC)

    The 4th European Microwave Integrated Circut Conference, EuMIC, in Amsterdam, The Netherlands, is one of four conferences at the European Microwave Week 2008, the largest event in Europe dedicated to microwave electronics. EuMIC is the leading European conference for RFIC/MMIC technology and applications. The aim of the conference is to cover recent research and development on material technology, process development/technology.

  • 2008 European Microwave Integrated Circuits Conference (EuMIC)

    The third European Microwave Integrated Circut Conference, EuMIC, in Amsterdam, The Netherlands, is one of four conferences at the European Microwave Week 2008, the largest event in Europe dedicated to microwave electronics. EuMIC is the leading European conference for RFIC/MMIC technology and applications. The aim of the conference is to cover recent research and development on material technology, process development/technology.

  • 2007 European Microwave Integrated Circuits Conference (EuMIC)

    RF and microwave devices for telecommunication and sensor systems including UMTS, LMDS and other systems working in the microwave and millimetre-wave range. Covering recent development and trends in physical fundamentals, physicas and behavoural modeling, microwave and opto-electric devices and monolithic design in GaAs, InP, SiGe, GaN and SiC technologies.

  • 2006 European Microwave Integrated Circuits Conference (EuMIC) (Formerly GAAS)

  • GAAS 2005 - European Gallium Arsenide and Other Semiconductors Application Symposium


2018 15th International Workshop on Advanced Motion Control (AMC)

1. Advanced Motion Control2. Haptics, Robotics and Human-Machine Systems3. Micro/Nano Motion Control Systems4. Intelligent Motion Control Systems5. Nonlinear, Adaptive and Robust Control Systems6. Motion Systems for Robot Intelligence and Humanoid Robotics7. CPG based Feedback Control, Morphological Control8. Actuators and Sensors in Motion System9. Motion Control of Aerial/Ground/Underwater Robots10. Advanced Dynamics and Motion Control11. Motion Control for Assistive and Rehabilitative Robots and Systems12. Intelligent and Advanced Traffic Controls13. Computer Vision in Motion Control14. Network and Communication Technologies in Motion Control15. Motion Control of Soft Robots16. Automation Technologies in Primary Industries17. Other Topics and Applications Involving Motion Dynamics and Control


2018 23rd Opto-Electronics and Communications Conference (OECC)

Core/Access Networks and Switching Subsystems, Transmission Systems and Their Subsystems, Optical Fibers, Fiber Amplifiers, and Related Devices, Optical Active Devices and Modules, Passive Devices and Modules

  • 2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)

    OECC and PGC 2017 will be held during 31 July - 4 August 2017 at Sands Expo and Convention Centre, Singapore. The aim of this conference is to foster interactions among broad disciplines in the photonics family. This mega conference brings together international leading researchers, scientists and engineers who are actively working in lasers and their applications, nanophotonics, metamaterial, biophotonics, plasmonics, optical devices, optical transmission and optical networking, optical fibers, optical switching system and related technologies. The conference widely covers the field of "Photonics" from devices to systems and networks.

  • 2015 Opto-Electronics and Communications Conference (OECC)

    To provide a platform for sharing the research work in various optical and photonic research fields

  • 2012 Opto-Electronics and Communications Conference (OECC)

    SC1. Core/Access Networks and Switching Subsystems SC2. Transmission Systems and Subsystems SC3. Optical Fibers, Cables, and Fiber Devices SC4. Optical Active Devices and Modules SC5. Optical Passive Devices and Modules SC6. CLEO Focus Session

  • 2011 16th Opto-Electronics and Communications Conference (OECC)

    1 Core/Access Networks. 2. Transmission Systems 3. Optical Fibers, Cables and Fiber Devices 4. Optical Active Devices and Modules 5. Optical Passive Devices and Modules 6. LCD, Solar Cell, and Solid-state Lighting Technologies 7. Emerging Technologies

  • 2010 15th OptoeElectronics and Communications Conference (OECC)

    1. Core/Access Networks and Switching Subsystems 2. Transmission Systems and their Subsystems 3. Optical Fibers, Cables and Fiber Devices 4. Optical Active Devices and Modules 5. Optical Passive Devices and Modules

  • 2009 14th OptoeElectronics and Communications Conference (OECC)

    Optical Networks and Broadband Access, Transmission Systems and Switching Technologies, Optical Signal Processing, Optical Sensors and Systems, Optical Fiber and Waveguide Devices, Optoelectronic Materials, Devices and Modules, and Emerging Technologies


2018 Conference on Precision Electromagnetic Measurements (CPEM 2018)

CPEM is the most important scientific and technological conference in the domain of electromagnetic measurements at the highest accuracy levels. This conference covers the frequency range from DC to the optical region.2018 is expected to be a watershed year in the history of the international system of units (SI), with the adoption of the new definitions for the kilogram, the ampere, the kelvin and the mole. All the SI units will then be based on a set of seven defining constants. CPEM 2018 will provide a privileged opportunity to mark this milestone of the SI through a natural focus on quantum devices that relate electrical measurement standards to fundamental constants of physics. CPEM 2018 will also be the place to share knowledge on research in electromagnetic metrology focused on present and future challenges regarding industry and society in sectors such as Energy, ICT, quantum engineering, Industry 4.0, etc.


2018 European Conference on Antennas and Propagation (EuCAP)

Antennas & related topics e.g. theoretical methods, systems, wideband, multiband, UWBPropagation & related topics e.g. modelling/simulation, HF, body-area, urbanAntenna & RCS measurement techniques


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Periodicals related to Attenuation

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Broadcasting, IEEE Transactions on

Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.


Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


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Most published Xplore authors for Attenuation

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Xplore Articles related to Attenuation

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Novel two-stage comb decimator with improved frequency characteristic

[{u'author_order': 1, u'affiliation': u'Department of electronics, Institute INAOE, Puebla, Mexico', u'full_name': u'Gerardo Molina Salgado'}, {u'author_order': 2, u'affiliation': u'Department of electronics, Institute INAOE, Puebla, Mexico', u'full_name': u'Gordana Jovanovic Dolecek'}, {u'author_order': 3, u'affiliation': u'Department of electronics, IMSE-CNM (CSIC/Universidad de Sevilla), Spain', u'full_name': u'Jose M. de la Rosa'}] 2015 IEEE 6th Latin American Symposium on Circuits & Systems (LASCAS), None

This paper presents a novel low-power two-stage comb-based decimator in which the passband droop is decreased and the attenuation in all odd folding bands are increased. This is achieved by using simple corrector filter and the sharpening technique in the second stage. The only design parameter is the number of the cascaded comb filters K in the first stage. However, ...


Measurement of interconnect loss due to dummy fills

[{u'author_order': 1, u'affiliation': u'Depertment of Communications and Computer Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, 606-8501, Japan', u'full_name': u'Akira Tsuchiya'}, {u'author_order': 2, u'affiliation': u'Depertment of Communications and Computer Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, 606-8501, Japan', u'full_name': u'Hidetoshi Onodera'}] 2007 IEEE Workshop on Signal Propagation on Interconnects, None

This paper reports measurement results of on-chip interconnects with CMP dummy fill. CMP dummy fill is a floating metal for metal density adjustment. In high frequency above 10 GHz, the eddy current induced in dummy fills affects the interconnect loss. We fabricated test structures of on-chip interconnect with dummy fills. From the measurement results, the effect of the dummy fills ...


Optimization of iterative reconstructions of <sup>99m</sup>Tc cardiac SPECT studies using numerical observers

[{u'author_order': 1, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'M. V. Narayanan'}, {u'author_order': 2, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'H. C. Gifford'}, {u'author_order': 3, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'M. A. King'}, {u'author_order': 4, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'P. H. Pretorius'}, {u'author_order': 5, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'T. H. Farncombe'}, {u'author_order': 6, u'affiliation': u'Massachusetts Univ. Med. Center, Worcester, MA, USA', u'full_name': u'P. Bruyant'}, {u'author_order': 7, u'full_name': u'M. N. Wernick'}] IEEE Transactions on Nuclear Science, 2002

In this paper, we investigate the use of a numerical observer to optimize ordered-subset expectation maximization (OSEM) reconstructions for the detection of coronary artery disease (CAD). The parameters optimized were the iteration number and the full-width at half-maximum of three-dimensional Gaussian postfiltering. The numerical observer employed in the optimization was the channelized Hotelling observer (CHO). The CHO had been used ...


EMC/NEMP technology from military applications to telecommunications

[{u'author_order': 1, u'affiliation': u'Alcatel Face Group, Florence, Italy', u'full_name': u'E. Lombardini'}, {u'author_order': 2, u'affiliation': u'Alcatel Face Group, Florence, Italy', u'full_name': u'G. Cariani'}] Conference Proceedings., Eleventh International Telecommunications Energy Conference, None

After describing the fundamental concepts of electromagnetic compatibility (EMC) and nuclear electromagnetic pulses (NEMP), the authors report on the engineering, construction, and test data for a NEMP-protected diesel power plant used as a power source for TLC systems. The test results indicate that the average attenuation (47 dB) of the electric field obtained from the CW test for f=100 MHz, ...


Iterative reconstruction of SPECT data with adaptive regularization

[{u'author_order': 1, u'affiliation': u'U494 INSERM, CHU Pitie-Salpetriere, Paris, France', u'full_name': u'C. Riddell'}, {u'author_order': 2, u'affiliation': u'U494 INSERM, CHU Pitie-Salpetriere, Paris, France', u'full_name': u'I. Buvat'}, {u'author_order': 3, u'full_name': u'A. Savi'}, {u'author_order': 4, u'full_name': u'M. -C. Gilardi'}, {u'author_order': 5, u'full_name': u'F. Fazio'}] IEEE Transactions on Nuclear Science, 2002

A nonlinear regularizing least-square reconstruction criterion is proposed for simultaneously estimating a single-photon emission computed tomography (SPECT) emission distribution corrected for attenuation together with its degree of regularization. Only a regularization trend has to be defined and tuned once for all on a reference study. Given this regularization trend, the precise regularization weight, which is usually fixed a priori, is ...


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Educational Resources on Attenuation

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eLearning

No eLearning Articles are currently tagged "Attenuation"

IEEE-USA E-Books

  • Characterization of Propagation Channels

    The reliable knowledge of the propagation channel is the foundation of the design and analysis of any wireless communication system. This chapter provides a unified and conceptually simple explanation of a morass of concepts around wireless channels. In the context of wireless radio channels, wide¿¿¿sense stationary uncorrelated scattering (WSSUS) is usually assumed. Wireless channels are the real environments in which the transmitter (Tx) and receiver (Rx) operate. Path loss is the attenuation in the transmitted signal while propagating from the Tx and Rx. Multipath propagation is when the transmitted signal reaches the Rx by two or more paths. The characterization of the multipath fading channel is essential for understanding and modeling it properly. The most important and often¿¿¿used approximate descriptions are the first¿¿¿order received envelope and phase PDF of multipath fading and some second¿¿¿order descriptions of multipath fading, such as the level cross rate (LCR), average fading duration (AFD), and the correlation properties.

  • Loss and Fading Associated with Troposphere Propagation Phenomena

    This chapter contains sections titled: Introduction Influence of Refraction on Propagation in the Troposphere Terrain Diffraction Losses: Fresnel Zones Vegetation Attenuation Atmospheric Gas and Vapor Absorption Hydrometeors Reflection Distortion due to Propagation Effects Bibliography

  • Acoustic Source Localization with Microphone Arrays

    This chapter contains sections titled: Introduction Signal Model Localization Approach Taxonomy Indirect Localization Approaches Direct Localization Approaches Evaluation of Localization Algorithms Conclusions Bibliography

  • Computer&#x2010;Aided Synthesis of Characteristic Polynomials

    This chapter discusses the synthesis of the characteristic polynomials of lowpass lossless prototype filters using an efficient computer‐aided optimization technique. It specifies an unconstrained artificial function for the optimization process that includes the objective function, as well as the inequality and equality constraints. The chapter develops the appropriate objective functions for optimization to generate the known classes of filter functions. The technique described for the computer‐aided optimization of characteristic polynomials for minimum phase filters is equally applicable for linear phase filters, both symmetric and asymmetric. The efficiency of this procedure is demonstrated by including examples of the classical Chebyshev and elliptic function filters as special cases of the design procedure. The computed critical frequencies are specified in Appendix 4A. These data add to the range of unified design charts and also provide guidelines for developing software to synthesize characteristic polynomials for filters with arbitrary amplitude and phase response.

  • Trends in Wireless Communications

    This chapter includes a summary of the history and recent trends in wireless communications especially on mobile cellular systems. The basic transmission problems and solutions are summarized in the physical and network layers. The fundamental limits define the upper performance bounds for spectral and energy efficiency. Regulation and standardization is needed so that the finite frequency resource is used efficiently, and the systems work together even in different continents. We expect that in the future the radio systems will be more intelligent but the level of cognition will depend on the available energy resources.

  • Equalizers

    This chapter contains sections titled: Basics Recursive Audio Filters Nonrecursive Audio Filters Multi‐complementary Filter Bank Java Applet - Audio Filters Exercises References

  • First- and Second-Order Circuits under Sinusoidal and Step Excitations

    This chapter contains sections titled: * Introduction * The First-Order _RC_ Low-Pass Filter (LPF) * The First-Order _RC_ High-Pass Filter (HPF) * Second-Order Circuits * Series RLC Second-Order Circuit * Second-Order Circuit in Sinusoidal Steady State: Bode Plots * Drawing the Second-Order Bode Plots Using Asymptotic Approximations * Summary * Further Reading * Problems

  • The Physical Layer

    **Uniquely presents tactical wireless communications and networks from an open architecture model perspective**** ** Providing a complete description of modern tactical military communications and networks technologies, this book systematically compares tactical military communications techniques with their commercial equivalents, pointing out similarities and differences. The author methodologically leads readers through this complex topic; first providing theoretical background on the protocol stack layers as they relate to tactical wireless communications and networking, second cover legacy, current and future tactical radio, and then going into detail on  the open architecture challenges. The book covers legacy non-IP tactical radios, IP-based tactical Mobile Ad-hoc NETwork (MANET) radios, the place of cognitive radios in future tactical communications, as well as the use of  core networks in the tactical theatre. Also presented are he Joint Tactical Radio Systems (JTRS) and other waveforms in the larger context of the Global Information Grid (GIG). This in-depth coverage enables readers to reflect on the security and Network Operations (NetOps) challenges, the need for cross layer signalling, the hypothesis of merging some protocol stack layers, and the techniques that are unique to tactical communications and networking, allowing them to move on to further practical and theoretical considerations. _Key Features:_ * _Covers the current state of tactical networking as well as the future long term evolution of tactical wireless communications and networking in the next 50 years_ * _Furnished throughout with illustrations and case studies to clarify the notional and architectural approaches_ * _Written at an advanced level with scope as a reference tool for engineers and scientists as well as a graduate text for advanced courses_

  • Inverse Scattering

    In the inverse problem, the scattered wave is measured for a given incident wave, and then the properties of the object are determined. This chapter outlines several inversion techniques and their advantages and disadvantages. In a computed tomography (CT) scanner, an object is illuminated by an X‐ray and the intensity of the transmitted X‐ray is recorded for various angles of illumination. These recorded data are then used to reconstruct the image of the object. The chapter gives an inverse Radon transform in the form of the back projection of the filtered projection. It is also possible to express the inverse Radon transform using the Hilbert transform. Based on the physical optics approximation, it is possible to derive an inversion formula that gives the size and shape of a conducting object from the knowledge of the monostatic scattering for all frequencies and all aspect angles.

  • Backhauling 5G Small Cells with Massive&#x2010;MIMO&#x2010;Enabled mmWave Communication

    An introduction to 5G small cells will be given and their backhauling requirements will be discussed. Then, the basics of massive MIMO and mm‐wave communication and their suitability for small‐cell backhauling and fronthauling will be discussed. Also, challenges related to using massive MIMO and mm‐wave communication for small‐cell backhauling and fronthauling will be outlined. In this context, the current state of the art will be reviewed. To this end, a performance analysis model for wireless back hauling of small cells with massive MIMO and mm‐wave communication will be outlined. Based on this model, some numerical results on the performance of massive‐MIMO‐ and/or mm‐wave‐based wireless backhaul networks will be presented.



Standards related to Attenuation

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IEEE Recommended Practice for Determining Safe Distances From Radio Frequency Transmitting Antennas When Using Electric Blasting Caps During Explosive Operations

This project provides recommended practices for the prediction and practical determination of safe distances from radio and radar transmitting antennas when using electric initiators to remotely detonate an explosive charge. Specifically, this document includes mathematical formulas, tables, and charts that allow the user to determine safe distances from RF transmitters with spectrum bands from 0.5 MHz to 300 GHz, including ...


IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...


IEEE Recommended Practice for Measurement of 8-VSB Digital Television Transmission Mask Compliance for the USA

This recommended practice provides a standardized body of theory, techniques, and procedures for measuring the spectral characteristics of 8-VSB transmitters used for terrestrial transmission of digital television (DTV) in the frequency range near their assigned channels. Essential characteristics are specified and measurement procedures are given that ensure that all parties will obtain comparable results. The theory and techniques presented are ...


IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz

Revise and develop specifications for preferred methods for measuring and computing external radiofrequency electromagnetic fields to which persons may be exposed. In addition, the document will specify preferred methods for the measurement and computation of the resulting fields and currents that are induced in bodies of humans exposed to these fields over the frequency range of 100 kHz to 300 ...



Jobs related to Attenuation

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