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Author: Chalermwisutkul, Suramate ×

Publications Search Results

Now showing 1 - 2 of 2
  • Publication
    Feasibility Study on the Acquisition of Automotive Radar Data of Urban Traffic Scenarios in Bangkok
    ( 2021)
    Nair, Sreejith
    ;
    Palaksha, Yeshaswini
    ;
    Pongthavornkamol, Tiwat
    ;
    Dallmann, Thomas
    ;
    Noomwongs, Nuksit
    ;
    Chalermwisutkul, Suramate
    This paper summarizes the planned acquisition of radar data of dense urban traffic scenarios seen in one of the metropolitan cities in Asia: Bangkok, Thailand. Thailand, among other ASEAN states, holds the highest share of the number of fatal accidents involving motorbikes; a two wheeled motorcycle with the largest ridership in Thailand. With an aim to developing a low cost radar sensor to enhance safer driving, a commercially available automotive radar evaluation module is used. Experimental measurements are conducted to validate the operability of this module with the scenarios of interest. The real measurements are conducted for selected scenarios that are vulnerable to fatal accidents in Bangkok. The data are later used to study towards developing intelligent safety systems based on radar capable of operating in all visual and weather conditions.
  • Publication
    High Gain Resonant Cavity Antenna Integrated with Frequency Selective Surface Radome Absorber
    ( 2019)
    Santoso, Subekti Ari
    ;
    Hamid, Sofian
    ;
    Chalermwisutkul, Suramate
    ;
    Heberling, Dirk
    A high gain resonance cavity antenna (RCA), integrated with a frequency selective surface (FSS) radome absorber is presented. The RCA has a U-slot microstrip patch antenna (MPA) as the primary source. The cavity resonance is generated by the large ground plane and a single layer of partially reflective structure (PRS) as the superstrate, which is placed at a distance of a half-wavelength from the ground plane. The PRS consists of 12 × 12 square patch arrays. Integration with an FSS radome absorber is performed to create a high gain and low scattering functional antenna. The impact of this integration to the antenna performance is investigated. The input reflection coefficient, realized gain and radiation pattern are compared. They are relatively similar, without and with the FSS radome absorber. A slight increase in the realized gain is expected due to the contribution of the metallic FSS structure since the FSS structure is treated as the second PRS layer for the RCA in the integration.