Abstract
In this paper, we present a new, simple multiband micro strip antenna mounted on a compact, no ground portion of a system circuit board of a mobile phone with a low profile of 15mm×20mm×11.2mm. The proposed antenna is 3D with an open-ended loop antenna having coaxial feed. It operates at two wide band frequencies, so that it covers multiband such as GSM850/900/ DCS1800/ PCS1900/ UMTS2100/ LTE2300 /2500/2700-3100 radar and radio navigation operation. It provides multiple resonant modes at 900, 1800, 2450, and 2900MHz. It supports the applications of a cellular system and IEEE Wireless Local Area Network (WLAN) and radio navigation and provides lightweight, low cost, multiband functionality. Performance analysis shows improved radiation efficiency, antenna gain and radiation pattern along with a sufficient reduction in return loss. Detailed design considerations of the proposed antenna are described. The simulation analysis is performed by using IE3D software.
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