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An internal PIFA/slot antenna for quad-band mobile handset applications is presented. The quad-band operation for the bar-type mobile handset is obtained by the resonant modes of the slot antenna in conjunction with those of the PIFA. The proposed antenna has a compact size of 42 times 10 times 4 mm3. The quad-band operation includes GSM850 (824-894 MHz), GSM900 (880-960 MHz), DCS1800 (1710-1880 MHz),...
In this paper, a dual frequency antenna with meandering slots is proposed. The effects of every slot of the proposed antenna are analyzed in detail using FEM. The proposed antenna has with an air-layer substrate of 13 mm and covers the required bandwidths of the GSM and WCDMA systems. The proposed antenna is especially suited for application in wireless communication repeater systems.
Multiple-input multiple-output (MIMO) technology is a technique which can increase capacity by exploiting multiple antennas in transceivers without the need for extra spectrum or transmit power. This technique is expected to be employed in handheld devices as high bit rate intensive applications become more popular, such as internet access, high definition signal transmission or on-line gaming. However,...
The radiation properties of a circular patch antenna with u-slot designed on glass epoxy FR-4 substrate are obtained and compared with that of a normal circular patch antenna designed under identical conditions. The modified antenna not only resonates at two different frequencies allotted by IEEE 802.16 working group for lower band (2.495-2.695 GHz) operation for WiMax systems but also presents marked...
The design of a novel dual-band PIFA of compact size for WLAN application has been presented. This new miniaturized PIFA is capable to operate in dual-band that cover 2.4-2.4835 GHz band for 802.11/b/g and 5.15-5.825 GHz band for 802.11a (indoor and outdoor) for application. The operation in the upper band is achieved by the introduction of a ground slot which is excited by the same feed used for...
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