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Sökning: WFRF:(Ndip Ivan)

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1.
  • Chernobryvko, Mykola, et al. (författare)
  • High-Q Ku-band Microstrip Spiral Resonator in Fan-out Wafer-Level Packaging (FoWLP) Technology for VCO Applications
  • 2023
  • Ingår i: Advancing Microelectronics. - 2222-8748. ; 2023:Special issue EMPC, s. 57-60
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper, a planar spiral resonator operating at 13 GHz is investigated. The resonator was fabricated using fan-out wafer level packaging (FoWLP) technology. The field analysis highlights the importance of via fence. Two thick film resistors suppress an undesired resonance in proximity of targeted one. The measurements demonstrate a very good correlation in comparison with full-wave simulations. The measured Q-factor defined based on analysis of feedback oscillatory system is about 48. The proposed configuration is suitable for voltage-controlled oscillators (VCOs) with a resonator realized in package.
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2.
  • Kühne, Thomas, et al. (författare)
  • Performance simulation of a 5G hybrid beamforming millimeter-wave system
  • 2020
  • Ingår i: WSA 2020 - 24th International ITG Workshop on Smart Antennas.
  • Konferensbidrag (refereegranskat)abstract
    • Millimeter-wave systems are the next step to increase the data rate of 5G mobile communication networks. Hybrid analog-digital beamforming is one of the core technologies to enable millimeter-wave communication. Both the theoretical basics and the hardware design have been investigated in recent years. Current research projects like the European SERENA project strive to develop platforms to demonstrate the performance gain of complete systems. We present a simulation based analysis of a planned proof-of-concept system to evaluate the influence of design decisions and hardware impairments. We use a geometry-based stochastic channel simulator and simulate both certain hardware aspects and signal processing parts. We focus on the signal processing parts directly related to the hybrid architecture used for multi user MIMO precoding like the initial link acquisition and the data precoding. We use our own state-of-the-art algorithms for these parts.
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