Compact dual‐band diversity antenna for mobile handset applications

Abstract

A dual band diversity antenna for PCS and WiMAX bands is proposed and designed with compact dimension. The proposed diversity antenna consists of two dual‐band PIFAs arranged front to front with the same structure. With polarization diversity, jointed shorting structure, and suspended line, the proposed antenna gives high radiation efficiency (>50%), high isolation (>15 dB), and low correlation coefficient (ρe < 0.05. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2600–2604, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23759

A wideband four-element antenna system for mobile terminals

“…The upper part of the ground plane protruding from the main ground is a transformative dual inverted-L-shaped ground branches which are similar to the dual inverted-L-shaped ground branches proposed in [3]. In [2] and [5], a shorting structure is used between two antenna elements. And in the proposed antenna system a shorting structure, i.e.…”

“…To improve the isolation between the two elements and adjust the resonant frequency of the proposed antenna, a dual inverted-L-shaped ground branches in [3] are adopted, and a shorting structure reported in [2] and [5] is adopted between the two ground branches.…”

Multiple-Input Multiple-Output Antennas for Ultra Wideband Communications

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