Analysis And Design Of Multiple Element Antennas For Urban Communication
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Analysis And Design Of Multiple Element Antennas For Urban Communication
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Author : Juan Pontes
language : en
Publisher: KIT Scientific Publishing
Release Date : 2010
Analysis And Design Of Multiple Element Antennas For Urban Communication written by Juan Pontes and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Technology (General) categories.
This work focuses on the analysis and design of multiple element antennas (MEA) and their interaction with the propagation channel. In particular, attention is given to urban channels and how its information throughput, i.e. capacity, can be improved. With this in mind, this work extends an existing network model of the communication system in order to reduce computation time, investigates the communicational limits of MEA systems and proposes a synthesis method for capacity maximization.
Analysis And Design Of Multiple Element Antennas For Urban Communication
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Author : Juan Pontes
language : en
Publisher:
Release Date : 2010
Analysis And Design Of Multiple Element Antennas For Urban Communication written by Juan Pontes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
This work focuses on the analysis and design of multiple element antennas (MEA) and their interaction with the propagation channel. In particular, attention is given to urban channels and how its information throughput, i.e. capacity, can be improved. With this in mind, this work extends an existing network model of the communication system in order to reduce computation time, investigates the communicational limits of MEA systems and proposes a synthesis method for capacity maximization.
Capacity Enhancement By Pattern Reconfigurable Multiple Antenna Systems In Vehicular Applications
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Author : Kowalewski, Jerzy
language : en
Publisher: KIT Scientific Publishing
Release Date : 2020-06-08
Capacity Enhancement By Pattern Reconfigurable Multiple Antenna Systems In Vehicular Applications written by Kowalewski, Jerzy and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-08 with Technology & Engineering categories.
Ultra Wideband Radio Technologies For Communications Localization And Sensor Applications
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Author : Reiner Thomä
language : en
Publisher: BoD – Books on Demand
Release Date : 2013-03-13
Ultra Wideband Radio Technologies For Communications Localization And Sensor Applications written by Reiner Thomä and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-13 with Technology & Engineering categories.
Ultra-Wideband Radio (UWB) earmarks a new radio access philosophy and exploits several GHz of bandwidth. It promises high data rate communication over short distances as well as innovative radar sensing and localization applications with unprecedented resolution. Fields of application may be found, among others, in industry, civil engineering, surveillance and exploration, for security and safety measures, and even for medicine. The book considers the basics and algorithms as well as hardware and application issues in the field of UWB radio technology for communications, localization and sensing based on the outcome of DFG's priority-funding program "Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications (UKoLoS)".
Mimo Ofdm Radar Communication System With Mutual Interference Cancellation
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Author : Sit, Yoke Leen
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-04-10
Mimo Ofdm Radar Communication System With Mutual Interference Cancellation written by Sit, Yoke Leen and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-10 with Radar categories.
This work describes the OFDM-based MIMO Radar-Communication System, intended for operation in a multiple-user network, especially the automotive sector in the vehicle-to vehicle/infrastructure network. The OFDM signals however are weak towards frequency offsets causing subcarrier misalignment and corrupts the radar estimation and the demodulation of the communication signal. A simple yet effective interference cancellation algorithm is detailed here with real time measurement verification.
Algan Gan Hemt Power Amplifiers With Optimized Power Added Efficiency For X Band Applications
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Author : Jutta Kühn
language : en
Publisher: KIT Scientific Publishing
Release Date : 2011
Algan Gan Hemt Power Amplifiers With Optimized Power Added Efficiency For X Band Applications written by Jutta Kühn and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Power amplifiers categories.
This work has arisen out of the strong demand for a superior power-added efficiency (PAE) of AlGaN/GaN high electron mobility transistor (HEMT) high-power amplifiers (HPAs) that are part of any advanced wireless multifunctional RF-system with limited prime energy. Different concepts and approaches on device and design level for PAE improvements are analyzed, e.g. structural and layout changes of the GaN transistor and advanced circuit design techniques for PAE improvements of GaN HEMT HPAs.
Intelligent Reflecting Surfaces In Wireless Communication Systems
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Author : Li, Yueheng
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-02-23
Intelligent Reflecting Surfaces In Wireless Communication Systems written by Li, Yueheng and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-23 with categories.
Accompanied with the development of the wireless communication technologies, the high data traffic is more necessary for civil and industrial applications than ever The concept of an intelligent reflective surface (IRS) has attracted considerable attention recently as a low-cost solution. As the main contribution, the dissertation creates new state-of-the-art and formulates a solid milestone for the IRS research field.
Modeling Backscattering Behavior Of Vulnerable Road Users Based On High Resolution Radar Measurements
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Author : Abadpour, Sevda
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-11-20
Modeling Backscattering Behavior Of Vulnerable Road Users Based On High Resolution Radar Measurements written by Abadpour, Sevda and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-20 with categories.
During the evolvement of autonomous driving technology, obtaining reliable 3-D environmental information is an indispensable task in approaching safe driving. The operational behavior of automotive radars can be precisely evaluated in a virtual test environment by modeling its surrounding, specifically vulnerable road users (VRUs). Such a realistic model can be generated based on the radar cross section (RCS) and Doppler signatures of a VRU. Therefore, this work proposes a high-resolution RCS measurement technique to determine the relevant scattering points of different VRUs.
Rf Probe Induced On Wafer Measurement Errors In The Millimeter Wave Frequency Range
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Author : Mueller, Daniel
language : en
Publisher: KIT Scientific Publishing
Release Date : 2018-11-22
Rf Probe Induced On Wafer Measurement Errors In The Millimeter Wave Frequency Range written by Mueller, Daniel and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-22 with Measurement categories.
Measurement at millimeter-wave frequencies are prone to parasitic effects which distort the overall results. Especially the use of RF probes introduces unknown distortions, even after the measurement setup is calibrated. This works investigates these distortions based on electromagnetic field simulations of integrated circuits in conjunction with models of the used RF probes. This allows to comprehend the observed distortions and successfully resolve the root of the distortions.
Body Matched Antennas For Microwave Medical Applications
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Author : Li, Xuyang
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-01-23
Body Matched Antennas For Microwave Medical Applications written by Li, Xuyang and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-23 with Medical categories.
In this work, new concepts of body-matched antennas for microwave medical applications were developed, where the antennas are placed directly on or in the human body. Two types of antennas were designed - on-body matched antennas for diagnosis and implantable antennas for data telemetry with the main focus of miniaturization yet maintained a high radiation performance. The applicability of the antennas was verified using a medical imaging system for the detection of hemorrhagic stroke.