| Summary: | 碩士 === 國立臺南大學 === 綠色能源科技研究所碩士班 === 98 === As mobile communication becomes more and more widespread, the increasing use of mobile communication systems has stimulated the interest in the muti-frequency design of monopole antennas for application in different mobile communication systems. A famous LV-shape printed monopole antenna with muti-broadband operations is proposed. The proposed antenna is fed by a coplanar waveguide (CPW) with LV-shape radiation element which refers to the popular Louis Vuitton (LV) logo. For increase the antenna bandwidth and multi-band characteristics, we proposed an L-shape structure which extends from the ground to combine the LV-shape radiation element. The measured dual-broadband frequencies are at 0.8 GHz-0.98 GHz, 1.65 GHz - 2.53 GHz and 5.05 GHz - 7 GHz with sufficient bandwidths to meet the system requirements of GSM900 (0.8 GHz - 0.96 GHz), GSM1800/2100 (1.71 GHz - 2.17 GHz), 3G (1.92 - 2.17 GHz), Bluetooth (2.4 - 2.484 GHz) and WLAN (2.4 GHz/ 5.2 GHz/ 5.8 GHz). The proposed antenna is designed on FR4, the simulated and measured result shows the good agreement.
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