Examples of design
charts
calculated for 3-element Yagi-Uda antenna.
Printed in YAGI-UDA ANTENNA, in 1954.
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Dimensions.
Radii (ƒÏ) of the conductors (ƒÏ=ƒÉ/200) are taken into
account.
Lengths of the fed element (2 l1) and the reflector (2 l2) are bothă/2
Spacing between fed element and the reflector d2 is ă/4.
Length (2l3) of the director (vertical axis) and the spacing d3 from the fed element (horizontal axis) are varied.
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Gain chart shown in p. 102. |
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Input resistance chart shown in p. 103. |
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Input reactance chart shown in p. 104. |
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