Essays about: "intermodulation"

Showing result 1 - 5 of 13 essays containing the word intermodulation.

1. 1. Explaining Neural Networks used for PIM Cancellation

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Fredrik Diffner; [2022]
   Keywords : Telecommunication; Passive intermodulation; PIM cancellation; Fully connected neural network; Convolutional neural network; Time series regression; Explainable AI; backpropagation-based XAI methods; perturbation-based XAI methods; Telekommunikation; Passiv intermodulation; PIM-eliminering; Fullt sammankopplade neuronnät; Konvolutionerande neuronnät; Tidsserieregression; Förklarande AI; Bakåtpropagerande-baserade XAI-metoder; Perturbations-baserade XAI-metoder;

   Abstract : Passive Intermodulation is a type of distortion affecting the sensitive receiving signals in a cellular network, which is a growing problem in the telecommunication field. One way to mitigate this problem is through Passive Intermodulation Cancellation, where the predicted noise in a signal is modeled with polynomials. READ MORE

3. 2. Screw Joint Analysis in Radio Frequency Filters

   University essay from KTH/Industriell produktion

   Author : Nils Löwhagen; [2022]
   Keywords : Digital filter; Pre-load force; Clamp torque; Release torque; Surface roughness; Thermal shock test; Digitalt filter; Förspänningskraft; Klämvridmoment; Lossdragningsmoment; Ytjämnhet; Termiskt chocktest;

   Abstract : Filter devices are central elements of radio units utilized for modern-day telecommunication. Leakages of radio waves and passive intermodulation are evolving more prominent as the frequency bands become crowded. READ MORE

4. 3. Design of a 16 GSps RF Sampling Resistive DAC with on-chip Voltage Regulator

   University essay from Linköpings universitet/Elektroniska Kretsar och System

   Author : Pontus Thomsson; Cyrus Seyed Aghamiri; [2021]
   Keywords : DAC; LDO; RDAC; 16GSps; 12-bit; Digital-to-Analog Converter; Low-Dropout Regulator;

   Abstract : Wireless communication technologies continue to evolve to meet the demand for increased data throughput. To achieve higher data throughput one approach is to increase the bandwidth. One problem related to very large bandwidths is the implementation of digital-to-analog converters with sampling rates roughly in the 5 to 20 GHz range. READ MORE

5. 4. Modelling of passive intermodulation in RF systems

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Martin Petek; [2020]
   Keywords : ;

   Abstract : Modern communication systems are increasing in complexity, power and dynamicrange. As a result, weaker signals can be detected which improves rangeand quality of service. However, this also results in greater sensitivity to spurioussignals which can impact system performance. READ MORE

6. 5. Characterization of Passive Intermodulation Distortion in MultiBand FDD Radio Systems

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Tomás Soares da Costa; [2019]
   Keywords : ;

   Abstract : Intermodulation distortion (IMD) is a phenomenon that results in generation of spurious distortion signals when two or more signals of different frequencies pass through a nonlinear system. In general, IMD occurs in active circuits of a radio system, however, passive wireless components such as filters, transmission lines, connectors, antennas, attenuators etc. READ MORE