2010 12th International Conference on Computer Modelling and Simulation Comparison of LNA Topologies for WiMAX Applications in a Standard 90-nm CMOS Process Michael Angelo G. Lorenzo Maria Theresa G. de Leon Electrical and Electronics Engineering Institute University of the Philippines‚ Diliman Quezon City‚ Philippines mglorenzo1@up.edu.ph Electrical and Electronics Engineering Institute University of the Philippines‚ Diliman Quezon City‚ Philippines tess@eee.upd.edu.ph The rest
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MICROWAVE RADIO SYSTEMS GAIN System Gain * Gs is the difference between the nominal output power of a transmitter (Pt) and the minimum input power to a receiver (Cmin) necessary to achieve satisfactory performance; * Must be greater than or equal to the sum of all gains and losses incurred by a signal as it propagates from a transmitter to a receiver * In essence‚ system gain represents the net loss of a radio system‚ which is used to predict the reliability of a system for a given
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UPNRZ encoding is used. Determine: The line data rate (32)(8000)(8)=2.04mbps Minimum sampling rate =2(4khz)=8khz Minimum Nyquist bandwidth UPnRZ= Fb= 2.04mbps Consider a PCM-TDM system in which 24 signals are to be processed. Each signal has a baseband bandwidth of 3 KHz. The sampling rate has to be 33.3% higher than the theoretical minimum‚ and 8 bits are to be used. Conventional NRZ-L encoding format is used. An extra bit is added to each frame for sync. Determine: Required sampling rate
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Mbps | Fast Ethernet | 5e | 1 Gbps | Gigabit Ethernet | 6 | 2500 Mbps | Gigabit Ethernet | 6a | 10‚000 Mbps | Gigabit Ethernet | 4.1.5 Exercise: 4.1.6 Exercise: * ‚ The central layer comprises of a conducting material. This layer transmits the baseband video signal. * The dielectric layer surrounds the centre copper core. The function of the dielectric is to separate the inner conductor from the shield and provide physical support. * The next layer is the metallic shield‚ generally composed of
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Data transmission‚ digital transmission‚ or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires‚ optical fibres‚ wireless communication channels‚ and storage media. The data are represented as an electromagnetic signal‚ such as an electrical voltage‚ radiowave‚ microwave‚ or infrared signal. Data representation can be divided into two categories: Digital
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Instructor: Mr. Thompson October 2‚ 2012 Ethernet is a family of computer networking technologies for local area networks (LANs). Ethernet was introduced to the commercial marketplace in 1980‚ and has replaced other LAN technologies. It’s a baseband LAN specification invented by Xerox Corporation that operates at 10Mbps using carrier sense multiple access collision detection (CSMA/CD) to run over coaxial cable. Ethernet was designed to serve in networks with sporadic‚ occasionally heavy traffic
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and replacement - Display‚ Speakers‚ Mic‚ Vibrators‚ ringers‚ Antennas‚ charging connector. Cleaning method of PCB. Replacement of panels. 5. Advance Mobile Hardware Different sections in mobile phone - PFO section‚ RF section‚ Baseband section Introduction to Various ICs and electronic components. - PA‚ Antenna switch‚ RAM IC‚ Cobb‚ Power IC‚ Charging IC‚ CPU (MAD / UPP)‚filers‚ Thavo IC‚ etc. Soldering/desoldering of mobile components. Using blower for removing
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of the Maxis Broadband such as the online speed of the Maxis Broadband‚ the stability of the connection Maxis Broadband‚ the packages provided by the Maxis center and the satisfaction towards the customer service provided by the Maxis center. Besides that‚ Maxis Broadband also brings out other problems that are mainly in the system‚ price‚ function and the convenience usage of Maxis Broadband. 1.1 Purpose Statement The purpose of this report is to evaluate the Maxis Broadband in Universiti
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Klaus Petermann : Prof. Dr.-Ing. Adam Wolisz : Prof. Dr.-Ing. Ralf Lehnert Tag der wissenschaftliche Aussprache: 4. Oktober 2005 Berlin 2005 D 83 To the memory of my father Abstract To meet the explosive demands of high-capacity and broadband wireless access‚ modern cell-based wireless networks have trends‚ i.e.‚ continuous increase in the number of cells and utilzation of higher frequency bands. It leads to a large amount of base stations (BSs) to be deployed; therefore‚ cost-effective
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ER02s16 03-12-04 12.31 Sida 16 WCDMA evolved—High-speed packet-data services Stefan Parkvall‚ Eva Englund‚ Peter Malm‚ Tomas Hedberg‚ Magnus Persson and Janne Peisa Compared to second-generation systems‚ one of the most important aspects of third-generation mobile systems is enhanced packet-data access. WCDMA Release 99 provides data rates of 384 kbit/s for wide area coverage and up to 2 Mbit/s for hot-spot areas‚ which is sufficient for most existing packet-data applications. However‚ as
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