Essays about: "narrowband filter"

Showing result 1 - 5 of 7 essays containing the words narrowband filter.

1. 1. Towards a setup for narrowband terahertz generation through difference-frequency mixing of chirped ultrashort pulses

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Isa Clementsson; [2023]
   Keywords : Physics and Astronomy;

   Abstract : Terahertz radiation is a useful tool for inducing lower-energy excitations in matter, where it can be used to cause structural changes through direct interaction with the crystal lattice. Sub-picosecond optical pulses can be used to generate intense broadband terahertz pulses through optical rectification in nonlinear crystals, reaching peak electric fields of several MV/m and conversion efficiencies as high as a few percent. READ MORE

3. 2. Evaluation of Discrete-Time Wideband Receivers for NB-IoT

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Magnus Wasting; [2021]
   Keywords : Discrete; time; filter; NB-IoT; Charge; Sharing; CMOS; Technology and Engineering;

   Abstract : A receiver that covers several RF bands requires multiple front-end filters which increases the cost in terms of components and/or board/silicon area. Front-end filters assist a receiver to withstand interference at multiples of its down-conversion frequency. READ MORE

4. 3. A Linear, Wide-band, Low-Power Receiver for Narrowband- Internet of Things (NB-IoT)

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Rohan Raghunath; Ghanashyam Ravindranath Prabhu; [2018]
   Keywords : NB-IoT; FTNC; Harmonic rejection; N-path filtering; RX Front End; Low power; Wide-band; Passive mixer; Current mode; Technology and Engineering;

   Abstract : Advancement of technology with the aid of new application, wireless communication has grown rapidly in the past two decades. Recently, in the wireless communication industry, Narrowband- Internet of Things (NB-IoT) is being discussed by everyone, as the most important emerging technology of the day. READ MORE

5. 4. BEAMFORMING TECHNIQUES USING CONVEX OPTIMIZATION

   University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

   Author : Ravindra nath vijay kumar Jangam; [2014]
   Keywords : Beamforming; Convex optimization; Antennas; Narrowband; Least square norm; Infinity norm; CVX;

   Abstract :   The thesis analyses and validates Beamforming methods using Convex Optimization.  CVX which is a Matlab supported tool for convex optimization has been used to develop this concept. READ MORE

6. 5. On Models for Interference Calculations between Radio Communication Systems

   University essay from KTH/Signalbehandling

   Author : Fredrik Vihlborg; [2011]
   Keywords : ;

   Abstract : When installing a new radio system, it is of great importance to know that it will not interfere with the already existing systems, and that they can coexist side by side. The problems that will follow if interference occurs, can be of huge magnitude, e.g. radars not working, trains stopping etc. READ MORE