Pakasiri, Chatrpol
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Preferred name
Pakasiri, Chatrpol
Alternative Name
Pakasiri, Charpol
Main Affiliation
Email
chatrpol.pa@kmitl.ac.th
2 results
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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, KamornElectrically 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. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Improvement of HF RFID reader performance under metallic environment using ferrite sheet(2017-12-19); ; Conventional loop antennas for RFID reader usually perform worse with metallic environment. To improve reading range under this condition, a ferrite sheet is incorporated in the conventional loop antenna. The proposed antenna yields similar reading range with or without metallic environment.
