Advances in Antenna Technology for Wireless Handheld Devices

<table>Single monopole (left); an array of two monopoles (middle); an array of three monopoles (right). Ground plane is <svg height="11.175" id="M34" style="vertical-align:-0.20474pt" version="1.1" viewbox="0 0 111.65 11.175" width="111.65" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> printed on an FR4 substrate 1 mm thick. Monopoles are <svg height="11.125" id="M35" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 111.65 11.125" width="111.65" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

International Journal of Antennas and Propagation

Advances in Antenna Technology for Wireless Handheld Devices

Figure 19