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Antenna, Dipole (ANTED)

Antenna, Dipole (ANTED)

Properties	Description	Units	Default	Range
L	Length of antenna	meter	Required
LD	Ratio of the length to diameter, namely	meter	Required
R0	Characteristic impedance of the feed line	Ohm	50	> 0

Notes

1. For main beam calculations, the simulation frequency (in MHz) should be less than
900/L (m) for the dipole antenna.

2. The calculated gain is the maximum antenna gain in the main beam direction.

3. When used as a 1-port or a 2-port, the input impedance is calculated across nodes 1 and 3. When used as a 2-port, the 2nd port should be connected to the LINK element for proper analysis.

4. The R0 parameter can be used to modify the antenna calculation reference impedance for non 50-Ohm systems. R0 is used to convert the antenna’s S-parameters, which are computed for a 50-Ohm system, to the Y-parameters used by the linear analysis.

Netlist Form

ANTED:NAME n1 [ n2 n3 n4 ] L=val LD=val [R0=val]

Netlist Example

ANTED:1 1 2 L=1m LD=10 R0=75

References

1. C. A. Balanis, Antenna Theory: Analysis and Design, Harper & Row Publishers, Section 7.3, 1982

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