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in Modeling antennas
Posted
Hello there, I am building the InvAmos5 with the new dimensions from the papers.
Dimensions of antenna array
Due to inserting a two-wire phasing line it is necessary to change some of the original
dimensions of single Inverted Amos-5 antenna and introduce the new ones.
Here are given all dimensions of antenna both in millimeters and in wavelengths:
mm wavelengths
A 33 0.27
B 61 0.50
C 61 0.50
D 21.5 0.176
E 21 0.172
F 10.8 0.0885
G 32.5 0.264 (from refl. surface to dipole wire axis)
X 102.5 0.840
dw 2 0.0164 (dipole elements copper wire diameter)
Overall copper wire length: 8 x 282 mm or 8 x 2.3 wavelengths
Reflector solid metal sheet surface: 492 x 369 mm or 4 x 3 wavelengths
so if F=10.8mm what about the feeding point ? do I need to shorten the distance there and if I do what will be ?
and also I haven't done any balun's til now so what will be the length if I use RG58 50ohm.
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