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The Journal of The Korea Institute of Intelligent Transport Systems Vol.6 No.2 pp.113-118
휴대폰용 접힌 모노폴 내장형 안테나 설계
Design of Folded Monopole Internal Antenna for KPCS Mobile Phone Handset
Abstract
KPCS internal antenna in this paper, is designed and fabricated using the theory based on the folded monopole antenna. I propose folded monopole internal antenna which has high gain low profile structure with easy installation into the handset of mobile phone. Design frequency is 1.8 GHz that is a center frequency of Korea PCS frequency band, and the impedance variances due to change of antenna structure as a length and width are simulated. Measurements show that input VSWR range under 2:1 is 1.72 - 1.88 GHz, and radiated H-plane pattern is omnidirectional under passive state. Active sensitivities and output power of phone applied antenna are and max., respectively.
