Pakasiri, Chatrpol

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Pakasiri, Chatrpol
Alternative Name
Pakasiri, Charpol
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Email
chatrpol.pa@kmitl.ac.th

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    Item type:Publication,
    Impedance Extraction using Impedance Perturbation Method of Electrically Small HF Loop Antenna with Undercover Ferrite Sheet
    (2018-12-24)
    Mangmisirisap, Kanthiphat
    ;
    Bandudej, Kamorn
    ;
    Pakasiri, Chatrpol
    Electrically small high frequency (HF) loop antenna with undercover ferrite sheet yields high radiation resistance for multi-Turn structure. Antenna impedance without radiation differs greatly from that with the radiation effect. Impedance perturbation method is used for extracting antenna impedance with radiation effect at a desired frequency. Matching networks are designed based on the extracted antenna impedance. The measurement results show that the antenna with the designed matching network provides higher return loss.