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showroom_LPDA.html
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<table width="1000" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td rowspan="2" align="right" valign="bottom" ><img src="images/logo_top.jpg" width="257" height="83" alt=""></td>
<td width="715" height="42" align="right" valign="middle" style="padding-right:15px;"><table border="0" cellspacing="0" cellpadding="0">
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<!-- InstanceBeginEditable name="page info" -->
<table width="1000" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="83"><img src="images/inside_head5.jpg" width="1000" height="83" /></td>
</tr>
<tr>
<td height="692" id="content-inside"><div id="content_fixed_bg"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="left" valign="top"><p><img src="images/t_showroom.jpg" width="114" height="21" /></p></td>
</tr>
<tr>
<td align="left" valign="middle" class="hd02">Logic Periodic Dippole Antenna</td>
</tr>
<tr>
<td align="left" valign="middle"> </td>
</tr>
<tr>
<td height="231" align="left" valign="top" class="text"><p>A logic periodic dipole antenna (LPDA) includes 60 arms with different length and radius. The feed is located at the far end of the antenna, and the end with the longest arm is terminated by using the match load. The diameter of each arm is equal to two local mesh size, and the end of each arm is terminated at the grid. </p>
<p>Specify the antenna material to be PEC, and select all the arms in the "Object Browser" box.</p>
<p>(1) Click "Surf-current box.</p>
<p>(2) You can use the default mesh length in the "Set Current on SUrface" window, or change "-1" to "10".</p>
<p>(3) Check the surface mesh by selecting one arm in the "Object Browser" box and then "Tools->Surface mesh" option to view the mesh. If it is too <br />
dense or coarse, you can adjust the number in the "Maximum mesh length of surface" box in the "Set Current on Surface" window.</p>
</td>
</tr>
<tr>
<td align="left" valign="top" class="text"> </td>
</tr>
<tr>
<td align="left" valign="middle"><table width="100%" border="0" align="center" cellpadding="0" cellspacing="5">
<tr>
<td valign="top"><table width="98%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="50" valign="middle" class="hd03"><p>LPDA Antenna COnfiguration </p></td>
</tr>
<tr>
<td height="203" align="center" valign="top"><img src="images/show_lpda_02.jpg" width="281" height="200" /></td>
</tr>
<tr>
<td align="center" valign="top"> </td>
</tr>
<tr>
<td height="55" class="hd03"><p>Return Loss</p></td>
</tr>
<tr>
<td align="center" valign="top"><p><img src="images/show_lpda_05.jpg" width="254" height="200" /></p> </td>
</tr>
<tr>
<td align="center" valign="top"> </td>
</tr>
<tr>
<td height="55" align="center" valign="middle" class="hd03"><p>Conformal Current Distribution @100MHz</p></td>
</tr>
<tr>
<td height="52" align="center" valign="top"><img src="images/show_lpda_08.jpg" width="253" height="200" /></td>
</tr>
</table></td>
<td align="center" valign="top"><table width="98%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="50" valign="middle" class="hd03"><p>End Match Load</p> </td>
</tr>
<tr>
<td align="center" valign="top"><img src="images/show_lpda_03.jpg" width="218" height="200" /></td>
</tr>
<tr>
<td align="center" valign="top"> </td>
</tr>
<tr>
<td height="55" class="hd03"><p>3-D Directivity Pattern</p></td>
</tr>
<tr>
<td align="center" valign="top"><p><img src="images/show_lpda_06.jpg" width="255" height="200" /></p> </td>
</tr>
<tr>
<td align="center" valign="top"> </td>
</tr>
<tr>
<td height="55" align="center" valign="middle" class="hd03"><p>Conformal Current Distribution @200MHz</p></td>
</tr>
<tr>
<td height="57" align="center" valign="top"><img src="images/show_lpda_09.jpg" width="252" height="200" /></td>
</tr>
</table></td>
<td align="center" valign="top"><table width="98%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td height="50" valign="middle" class="hd03"><p>Feed End with Excitation</p></td>
</tr>
<tr>
<td align="center" valign="top"><img src="images/show_lpda_04.jpg" width="225" height="200" /></td>
</tr>
<tr>
<td align="center" valign="top"> </td>
</tr>
<tr>
<td height="55" class="hd03"><p>Conformal Current Distribution @20MHz</p> </td>
</tr>
<tr>
<td height="55" class="hd03"><p><img src="images/show_lpda_07.jpg" width="255" height="200" /></p> </td>
</tr>
<tr>
<td height="13"> </td>
</tr>
<tr>
<td height="55" class="hd03"><p>Conformal Current Distribution @400MHz</p></td>
</tr>
<tr>
<td height="55" class="hd03"><img src="images/show_lpda_10.jpg" width="254" height="200" /></td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
</div></td> </tr>
</table>
<!-- InstanceEndEditable -->
<table width="1000" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td align="center" valign="top" class="copyright"><table width="90%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="left" valign="top">Copyright © 2016 纽尔科技. All Rights Reserved.</td>
<td align="right" valign="top">主页 | 联系我们 | 网站架构</td>
</tr>
</table></td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</body>
<!-- InstanceEnd --></html>