Title:ultra-wide Band Radio UWB Colloquium IEE-Savoy Place London
標(biāo)簽： Colloquium ultra-wide IEE-Savoy London
上傳時(shí)間： 2013-12-20
上傳用戶：從此走出陰霾
Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly realization in the calculation then it described the use in the time-domain finally it analysed several characteristics of the monopole antenna. The arithmetic used in the microstrip antenna is also a quick and economical way to design the antenna.
標(biāo)簽： structures ultra-wide antennas Coaxial
上傳時(shí)間： 2016-06-28
上傳用戶：朗朗乾坤
This m file simulates a differential phase shift keyed (DPSK) ultra wide bandwidth(UWB) system using a fifth derivative waveform equation of a Gaussian pulse.
標(biāo)簽： differential bandwidth simulates system
上傳時(shí)間： 2014-01-03
上傳用戶：784533221
Ultra Wide Band (UWB) Transmitter and Receiver Simulation using Pulse Position Modulation (PPM)
標(biāo)簽： Transmitter Modulation Simulation Receiver
上傳時(shí)間： 2013-12-27
上傳用戶：6546544
TIME HOPPING SPREAD SPECTRUM SIGNALS (ULTRA WIDE BAND SIGNALS) - UWB SIGNAL DESCRIPTION - THE UWB TRANSMITTER - THE UWB RECEIVER
標(biāo)簽： SIGNALS DESCRIPTION UWB SPECTRUM
上傳時(shí)間： 2014-01-06
上傳用戶：duoshen1989
The ultra-wide bandwidth indoor
標(biāo)簽： ultra-wide bandwidth indoor The
上傳時(shí)間： 2017-06-30
上傳用戶：dyctj
some on ultra wide band
標(biāo)簽： ultra some band wide
上傳時(shí)間： 2013-12-17
上傳用戶：gdgzhym
Squaring circuits are an important building block for impulse-radio UWB non-coherent receivers. This work proposes a squarer, based on the quadratic law of saturated transistors. Such a circuit has already been proposed for lower frequency applications, therefore this work focuses on the extension to ultra wide bandwidth, with particular care to the consequences related to the deviation from the ideal quadratic law of 0.18μm CMOS transistors.
標(biāo)簽： impulse-radio non-coherent important receivers
上傳時(shí)間： 2013-12-24
上傳用戶：kikye
This book provides the essential design techniques for radio systems that operate at frequencies of 3 MHz to 100 GHz and which will be employed in the telecommunication service. We may also call these wireless systems, wireless being synonymous with radio, Telecommunications is a vibrant indus- try, particularly on the ‘‘radio side of the house.’’ The major supporter of this upsurge in radio has been the IEEE and its 802 committees. We now devote ? . an entire chapter to wireless LANs WLANs detailed in IEEE 802.11. We also now have subsections on IEEE 802.15, 802.16, 802.20 and the wireless ? . ? metropolitan area network WMAN . WiFi, WiMax,, and UWB ultra wide- . band are described where these comparatively new radio specialties are demonstrating spectacular growth.
標(biāo)簽： Telecommunication Design System Radio for
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
標(biāo)簽： Wide-input modules offer dc
上傳時(shí)間： 2014-12-24
上傳用戶：dragonhaixm
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