ETS-Lindgren 3142B BiConiLog Antenna (Archived) - Manual (Page 7)

MODEL 3142B BICONILOG™ ANTENNA Introduction
equal length single-wire dipole. The T end plate option has
its first resonance at a frequency where its length is about
0.22 λ, a regular bow-tie at a length of 0.3 λ, and a tuned
dipole at about a length of 0.48 λ. Thus at 50 MHz the 1.4m
long end plate option of the Model 3142B behaves like at
2.8 m tuned dipole. Cross-polar radiation is minimized
because current flow on one of the T end frames is almost
exactly cancelled by the oppositely-phased current on the
other T end.
© EMC TEST SYSTEMS, L.P. – MARCH 2002
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REV C – PN 399229
Archived 09/23/10