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Articles

A Good Performance Design for Integrating Three Antennas in a Dual SIM Mobile Phone for GSM/DCS/Bluetooth Operations

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Pages 1943-1954 | Published online: 03 Apr 2012
 

Abstract

This paper presents a dual Subscriber Identity Module (SIM) mobile phone which integrates a planar inverted-F antenna (PIFA), a monopole, and an inverted-F antenna (IFA). The main circuit board of the mobile phone has a dimension of 105 mm × 45 mm. By optimizing the multi-antenna configuration and adjusting the gap and angle of the antennas, good isolations of the three antennas are obtained. The PIFA and monopole support the Global System for Mobile communications (GSM) applications. And the measured results show that the Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS) of them satisfy the Cellular Telecommunications and Internet Association (CTIA) requirements. In addition, the IFA which enables the Bluetooth achieves a 3.79 dB gain. The presented ways are very useful for the dual SIM mobile phone design.

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