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http://dx.doi.org/10.5515/KJKIEES.2010.21.2.136

Monopole Antenna with a Triangular Patch Structure for Penta-Band Service  

Park, Jin-Won (Department of Electronic Engineering, Kyonggi University)
Cho, rae-June (Department of Electronic Engineering, Kyonggi University)
Moon, Byong-In (Partron Co. Ltd.)
Lee, Hong-Min (Department of Electronic Engineering, Kyonggi University)
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Abstract
In this paper, the microstrip antenna for penta-band service is proposed. It is designed for a wide band characteristic based on a monopole line combined with a triangular patch structure which has two slits. Total antenna size is $35\;mm{\times}20\;mm$ and it was fabricated on FR-4 substrate($\varepsilon_r=4.4$) which has $35\;mm{\times}75\;mm{\times}1\;mm$ size and a microstrip line with impedance 50 ohm is used. Experimental result shows the impedance bandwidth($VSWR{\leq}3$) of the proposed antenna operated within GSM/DCS/USPCS/UMTS/Bluetooth frequency band. The resonance frequency of the proposed antenna is 0.92, 1.97, 2.45 GHz and the average gain is -2.18, -0.66, -0.58 dBi. Also, the radiation efficiency is 60, 85, 87%. The fabricated antenna is satisfied with the aimed impedance bandwidth ($VSWR{\leq}3$) in GSM/DCS/ USPCS/UMTS/Bluetooth frequency band.
Keywords
GSM/DCS/USPCS/UMTS/Bluetooth; Patch Antenna; Penta-Band;
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