Typical data with the end plates – ETS-Lindgren 3142B BiConiLog Antenna (Archived) User Manual

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MODEL 3142B BICONILOG™ ANTENNA

Typical Data with the End Plates

TYPICAL DATA WITH THE END
PLATES

Figure 1 shows typical 26-2000 MHz VSWR for the Model

3142B with optional end plates.

Figure 2 shows typical Model 3142B with optional end

plates antenna factors from 26-2000 MHz. Distance for the

ANSI 3 and 10 meter calibrations is measured from the

antenna midpoint, while for SAE 1 meter calibrations the

distance is measured from the antenna tip. Midpoint is

defined as half the distance between the small elements and

the bow-ties, which is about 45 cm from the small end tip.

Figure 3 shows typical Model 3142B 26-2000 MHz

forward power with optional end plates required for 1, 3,

and 10 V/m at 1 m from the tip of the antenna, while Figure

4 is for 3 m from the antenna tip.

The power shown was measured over a ground plane with

1.5m transmit antenna and probe height, horizontal

polarization. Horizontal polarization is the worst-case

power required; typically less power is required for vertical

polarization. In practice, many users place ferrite tiles on

the ground between the antenna and probe to reduce

reflected-ray interference. For any other field strength E,

multiply the power in watts for 1 V/m by E

REV C – PN 399229

Archived 09/23/10