Principle for the Realization of Dual-Orthogonal Linearly Polarized Antennas for UWB Technique

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="231893.fig.003a" src="https://static.hindawi.com/articles/ijap/volume-2011/231893/figures/231893.fig.003a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Mirrored antenna array elements in the coordinate system</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="231893.fig.003b" src="https://static.hindawi.com/articles/ijap/volume-2011/231893/figures/231893.fig.003b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Configuration for the determination of the array weighting factor <svg height="16.512501" id="M16" style="vertical-align:-4.67357pt" version="1.1" viewbox="0 0 52.924999 16.512501" width="52.924999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,16.5125)">
<g transform="translate(72,-58.79)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">Φ</tspan>
</text>
<g>
<path d="m -71.95,60.61 9.54,0" style="fill:none;stroke:#000000;stroke-width:0.82499999;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:10;stroke-opacity:1;stroke-dasharray:none"></path>
</g>
<text transform="matrix(1,0,0,-1,-62.41,58.93)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑖</tspan>
</text>
<text transform="matrix(1,0,0,-1,-59.19,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">𝜃</tspan>
<tspan style="font-size: 12.50px; " x="10.702568" y="0">,</tspan>
<tspan style="font-size: 12.50px; " x="15.916319" y="0">𝜓</tspan>
<tspan style="font-size: 12.50px; " x="25.306072" y="0">)</tspan>
</text>
</g>
</g>
</svg></td></tr></table></td></tr></table>

<table>Coordinate system and configuration for the determination of the array transfer function <svg height="16.4" id="M15" style="vertical-align:-4.57701pt" version="1.1" viewbox="0 0 61.299999 16.4" width="61.299999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,16.4)">
<g transform="translate(72,-58.88)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐇</tspan>
</text>
<g>
<path d="m -71.95,60.61 9.73,0" style="fill:none;stroke:#000000;stroke-width:0.82499999;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:10;stroke-opacity:1;stroke-dasharray:none"></path>
</g>
<text transform="matrix(1,0,0,-1,-62.22,58.93)">
<tspan style="font-size: 8.75px; " x="0" y="0">A</tspan>
<tspan style="font-size: 8.75px; " x="6.318944" y="0">r</tspan>
</text>
<text transform="matrix(1,0,0,-1,-52.49,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">𝜃</tspan>
<tspan style="font-size: 12.50px; " x="10.702568" y="0">,</tspan>
<tspan style="font-size: 12.50px; " x="15.916319" y="0">𝜓</tspan>
<tspan style="font-size: 12.50px; " x="25.306072" y="0">)</tspan>
</text>
</g>
</g>
</svg>.</table>

International Journal of Antennas and Propagation

fig3

Figure 3

Figure 3: Principle for the Realization of Dual-Orthogonal Linearly Polarized Antennas for UWB Technique 