mirror of https://github.com/antenna2/cebik.git
221 lines
11 KiB
HTML
221 lines
11 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<meta charset="UTF-8">
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<meta name="keywords" content="Modeling, VOACAP">
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<title>VOACAP Type 13 File Patterns</title>
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<link rel="stylesheet" href="../styles.css">
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</head>
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<body>
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<center>
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<h1><img src="../images/yagicad.gif" align="left" width="125" height="62" border="2" vspace="15" hspace="10"><img src="../images/w4rnlwwr.gif" align="right" width="99" height="83" border="2" vspace="5" hspace="10">VOACAP Type-13 Files for Amateur Band Antennas<br>
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Sample Azimuth Patterns</h1>
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</center>
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<center>
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<h3>L. B. Cebik, W4RNL</h3>
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</center>
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<center>
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<img src="../images/colorbar.gif" align="middle" width="540" height="4">
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</center><br>
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<br>
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<p>To provide some idea of the anticipated azimuth pattern shape for the antennas included in the type-13 collections, the following plots may be useful. Elevation patterns vary for each combination of height, frequency, and other variables and are therefore impractical to present. These azimuth patterns are simply an aid to matching your antenna type to the nearest monoband antenna collection. All beam patterns within a collection have the same shape, with some small variations in the rearward patterns due to differences in height above ground as measured in wavelengths.</p>
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<h3>Horizontal Arrays</h3>
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<p><b>Monoband Yagis</b></p>
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<center>
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<img src="type13-1.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-2.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-3.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-4.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-5.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-6.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-7.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-8.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Monoband Quads</b></p>
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<center>
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<img src="type13-10.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-11.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-12.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-13.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-14.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="type13-15.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Moxon Rectangle</b></p>
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<center>
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<img src="type13-9.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2-Element Phased Array (or 2-Element Driver-Director Yagi)</b></p>
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<center>
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<img src="type13-16.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2-Element Bi-Directional W8JK Flat-Top with 1 wavelength elements and 1/2 wavelength spacing</b></p>
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<center>
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<img src="type13-17.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2-Element Bi-Directional W8JK Flat-Top with 1 wavelength elements and 1/4 wavelength spacing</b></p>
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<center>
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<img src="type13-18.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Collinear Array with 2 wavelength total length (4 1/2 wavelength sections with phasing sections)</b></p>
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<center>
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<img src="type13-19.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Bi-Square Array with 4 1/2 wavelength legs</b></p>
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<center>
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<img src="type13-20.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Multi-Band W8JK Array with 1.25-wl elements and 0.625-wl spacing at highest frequency</b></p>
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<center>
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<img src="type13-21.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Multi-Band Lazy-H Array with 1.25-wl elements and 0.625-wl spacing at highest frequency</b></p>
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<center>
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<img src="type13-22.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="../images/colorbar.gif" align="middle" width="540" height="4">
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</center>
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<h3>Vertical Arrays</h3>
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<p style="color:blue">(images for this section are missing)</p>
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<p><b>Basic Vertical Monopoles and Dipoles (All azimuth patterns are omni-directional.)</b></p>
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<p><b>Ground-mounted 1/4-wl monopoles</b></p>
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<center>
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<!--
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<img src="type13-53.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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<img src="type13-54.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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-->
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<p>type13-53.gif</p>
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<p>type13-54.gif</p>
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</center>
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<p><b>Ground-mounted 1/2-wl monopoles</b></p>
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<center>
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<!--
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<img src="type13-55.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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<img src="type13-56.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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-->
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<p>type13-55.gif</p>
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<p>type13-56.gif</p>
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</center>
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<p><b>Elevated monopoles with 4 attached radials at 20' (80-10 meters)</b></p>
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<center>
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<!--
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<img src="type13-59.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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-->
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<p>type13-59.gif</p>
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</center>
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<p><b>Vertical dipoles with 0.05-wl base heights (160-10 meters)</b></p>
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<center>
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<!--
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<img src="type13-57.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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<img src="type13-58.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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-->
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<p>type13-57.gif</p>
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<p>type13-58.gif</p>
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</center>
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<p><b>Multi-band vertical doublet 44' center-fed, 5' above ground (30-10 meters)</b></p>
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<center>
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<!--
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<img src="type13-60.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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-->
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<p>type13-60.gif</p>
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</center>
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<p><b>Self-Contained Vertically Polarized Arrays</b></p>
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<p>Note: SCV patterns include sample elevation and azimuth patterns, but use with caution. Gain and elevation values change with the frequency, the base height above ground, and the quality of ground below the antenna.</p>
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<p><b>Half Square</b></p>
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<center>
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<img src="type13-23.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-29.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Bobtail Curtain</b></p>
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<center>
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<img src="type13-24.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-30.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Equilateral Delta Loop</b></p>
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<center>
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<img src="type13-25.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-31.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Right-Angle Delta Loop</b></p>
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<center>
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<img src="type13-26.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-32.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Side-Fed Rectangular Loop</b></p>
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<center>
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<img src="type13-27.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-33.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>5-Element Bruce Array</b></p>
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<center>
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<img src="type13-28.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-34.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Phased Vertical-Element Arrays</b></p>
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<p><b>2 In-Phase Monopoles, Broadside Pattern</b></p>
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<center>
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<img src="type13-35.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-36.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>3 In-Phase Monopoles, Broadside Pattern</b></p>
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<center>
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<img src="type13-37.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-38.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2 Phased In-Line Monopoles</b></p>
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<center>
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<img src="type13-39.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-40.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2 In-Phase Dipoles, Broadside Pattern</b></p>
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<center>
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<img src="type13-41.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-42.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>3 In-Phase Dipoles, Broadside Pattern</b></p>
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<center>
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<img src="type13-43.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-44.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>2 Phased In-Line Dipoles</b></p>
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<center>
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<img src="type13-45.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-46.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Triangle of 3 Monopoles with 2 Parasitic Reflectors</b></p>
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<center>
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<img src="type13-47.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-48.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>Triangle of 3 Dipoles with 2 Parasitic Reflectors</b></p>
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<center>
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<img src="type13-49.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-50.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<p><b>4-Square Array</b></p>
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<center>
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<img src="type13-51.gif" width="457" height="190" border="2" vspace="5" hspace="9"><img src="type13-52.gif" width="457" height="190" border="2" vspace="5" hspace="9">
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</center>
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<center>
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<img src="../images/colorbar.gif" align="middle" width="540" height="4">
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</center>
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<p><i>Updated 08-4-2007. © L. B. Cebik, W4RNL. Data may be used for personal purposes, but may not be reproduced for publication in print or any other medium without permission of the author.</i></p>
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<center>
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<img src="../images/colorbar.gif" align="middle" width="540" height="4">
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</center>
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<p><a href="type13.html"><img src="../images/return.gif" align="bottom" width="40" height="40"> Return to Type-13 document</a></p>
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<p><a href="../radio.html"><img src="../images/rtnhome.gif" align="bottom" width="40" height="40"> Return to Index</a></p>
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<p class="topics-footer">Topics: <a href='../topics.html#modeling'>Modeling</a>, <a href='../topics.html#voacap'>VOACAP</a></p><br>
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</body>
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</html>
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