wyszukanych pozycji: 5
Plasmonic Demultiplexers and Filters
ISBN: 9783639667042 / Angielski / Miękka / 2014 / 136 str. Termin realizacji zamówienia: ok. 13-18 dni roboczych. This work presents design guidelines and performance investigation of plasmonic wavelength demultiplexers for optical communication systems. First the performance of multichannel demultiplexers designed using planar metal-insulator-metal plasmonic structure is investigated. Each demultiplexer unit consists of a bus waveguide supported by two, feedback and drop, nanocavities. Detail parametric study is used to design a high-drop efficiency demultiplexer. The results are then coupled with particle swarm optimization technique to redesign the demultiplexer with high drop efficiency. Simulation...
This work presents design guidelines and performance investigation of plasmonic wavelength demultiplexers for optical communication systems. First the...
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cena:
348,39 zł |
Fractal Rfid Antenna Miniaturization
ISBN: 9783659368240 / Angielski / Miękka / 2013 / 220 str. Termin realizacji zamówienia: ok. 13-18 dni roboczych. Recently, there has been increasing interest in pushing the operating frequency of RFID systems toward microwave frequencies (5.8 GHz) to make use of the ISM band. This work addresses the design of miniaturized fractal antennas for this application. Different fractal antennas based on aperture-coupled feeding technique are studied, analyzed and compared for size reduction, low profile, and good omnidirctional patterns. Further, a new design methodology for miniaturizing fractal RFID antennas is introduced which uses particle swarm optimization technique, implemented in MATLAB, and CST...
Recently, there has been increasing interest in pushing the operating frequency of RFID systems toward microwave frequencies (5.8 GHz) to make use of ...
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cena:
358,66 zł |
Impulse Radio Ultrawideband Signal Transmission over Optical Fiber
ISBN: 9783659826726 / Angielski / Miękka / 2016 / 152 str. Termin realizacji zamówienia: ok. 13-18 dni roboczych. The low power spectrum density of UWB signals restricts the transmission range to only few or tens of meters. One possible means to overcome this limitation is to use an optical link to distribute UWB signals over long distances.In this work, the transmission performance of UWB over optical link is investigated. The work consists of two main parts. The first part focuses on the transmission performance of UWB signals over existing fiber links and addresses the possibility of increasing the coverage area beyond 30 km. Then, the transmission performance of UWB over dense wavelength division...
The low power spectrum density of UWB signals restricts the transmission range to only few or tens of meters. One possible means to overcome this limi...
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cena:
317,60 zł |
Wavelength Conversion Using Silicon Nanowires
ISBN: 9783659384158 / Angielski / Miękka / 2013 / 136 str. Termin realizacji zamówienia: ok. 13-18 dni roboczych. Comprehensive numerical model is developed to investigate the characteristics of FWM in silicon nanowire waveguides. The model is based on a set of coupled nonlinear Schrodinger equations describing the propagation of the pump, signal, and converted waveform through the waveguide. The effect of dispersion, free-carrier absorption, two-photon absorption, and state of polarization are taken into account. Analytical solutions are also deduced from the model under simplified conditions to get approximated description for the key roles played by various system parameters. Both numerical and...
Comprehensive numerical model is developed to investigate the characteristics of FWM in silicon nanowire waveguides. The model is based on a set of co...
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cena:
317,60 zł |
Carbon Nanotube Antennas
ISBN: 9783659379697 / Angielski / Miękka / 2013 / 148 str. Termin realizacji zamówienia: ok. 13-18 dni roboczych. |
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cena:
286,82 zł |