Changes

*2D Solution Plane
*Quasi-Static Analysis
|All versions|{{download|http://www.emagtech.com|/downloads/ProjectRepo/EMFerma_Tutorial_7.zip EM.Ferma Lesson 9|[[EM.Cube]] 14.10}} }}
===Objective:What You Will Learn ===
To In this tutorial you will construct and analyze more complicated types of multi-conductor [[Transmission Lines|transmission lines]] such as various coplanar waveguide transmission line structures with and without a dielectric substrate or conductor backing.
===What You Will Learn:===A coplanar waveguide (CPW) transmission line consists of a center metallic strip located between two wide grounded metallic strips on the two sides. All the three strips are collocated on the same plane. The width of the center strip (also called center conductor) is denoted by s. The gap between the center strip and the lateral ground strips on either side is denoted by w and is known as the slot width. In this tutorial lessonpractice, you will construct and analyze more complicated types of multia dielectric substrate is used to support the three metallic strips. The dielectric substrate can be an infinite half-conductor [[Transmission Lines|transmission lines]]space or a layer of finite thickness. The simplest CPW utilizes an air substrate. This can be realized using a very thin membrane and does have practical applications. The dielectric substrate may also have a PEC ground backing on its other side.
==Getting Started==
Open the [[EM.Cube]] application and switch to Static Module[[EM.Ferma]]. Start a new project with the following attributes:
#Name<div class="noprint" style="float: left;margin-right:10px">{| border="1" class="wikitable"|+ Starting [[Parameters]]|-! Name| STATICLesson9#|-! Length Units: mm#| Millimeters|-! Frequency Units: | N/A #|-! Center Frequency: | N/A#|-! Bandwidth: | N/A|}</div>
A coplanar waveguide (CPW) transmission line consists of a center metallic strip located between two wide grounded metallic strips on the two sides. All the three strips are collocated on the same plane. The width of the center strip (also called center conductor) is denoted by s. The gap between the center strip and the lateral ground strips on either side is denoted by w and is known as the slot width. In practice, a dielectric substrate is used to support the three metallic strips. The dielectric substrate can be an infinite half-space or a layer of finite thickness. The simplest CPW utilizes an air substrate. This can be realized using a very thin membrane and does have practical applications. The dielectric substrate may also have a PEC ground backing on its other side.<div class="noprint" style="clear:both"></div>
==Constructing the Basic CPW Line==
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[[Image:STAT161.png|thumb|center|370px360px|Electric field distribution in the YZ plane.]]
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[[Image:STAT163STAT162.png|thumb|center|420px360px|Vector plot of the total electric field Electric potential distribution in the YZ plane.]]
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<table>
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[[Image:STAT162STAT163.png|thumb|center|370px500px|Electric potential Vector plot of the total electric field distribution in the YZ plane.]]
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[[Image:STAT164.png|thumb|center|420px360px|The graph of the total electric field of the air-filled CPW along the Y-axis.]]
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[[Image:STAT165.png|thumb|center|420px360px|The graph of the total electric field of the air-filled CPW along the Z-axis.]]
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[[Image:STAT167.png|thumb|center|370px360px|Electric field distribution of the CPW line with the dielectric substrate in the YZ plane.]]
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[[Image:STAT169STAT168.png|thumb|center|420px360px|Vector plot of the total electric field Electric potential distribution of the CPW line with the dielectric substrate in the YZ plane.]]
</td>
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<table>
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<td>
[[Image:STAT168STAT169.png|thumb|center|370px500px|Electric potential Vector plot of the total electric field distribution of the CPW line with the dielectric substrate in the YZ plane.]]
</td>
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[[Image:STAT170.png|thumb|center|420px360px|The graph of the total electric field of the CPW line with the dielectric substrate along the Y-axis.]]
</td>
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[[Image:STAT171.png|thumb|center|420px360px|The graph of the total electric field of the CPW line with the dielectric substrate along the Z-axis.]]
</td>
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[[Image:STAT173.png|thumb|center|350px360px|Electric field distribution of the CPW line with the conductor-backed dielectric substrate in the YZ plane.]]
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[[Image:STAT175STAT174.png|thumb|center|480px360px|Vector plot of the total electric field Electric potential distribution of the CPW line with the conductor-backed dielectric substrate in the YZ plane.]]
</td>
</tr>
</table>
 
<table>
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<td>
[[Image:STAT174STAT175.png|thumb|center|350px500px|Electric potential Vector plot of the total electric field distribution of the CPW line with the conductor-backed dielectric substrate in the YZ plane.]]
</td>
</tr>
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[[Image:STAT176.png|thumb|center|420px360px|The graph of the total electric field of the CPW line with the conductor-backed dielectric substrate along the Y-axis.]]
</td>
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[[Image:STAT177.png|thumb|center|420px360px|The graph of the total electric field of the CPW line with the conductor-backed dielectric substrate along the Z-axis.]]
</td>
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