ETS-Lindgren 3160 Pyramidal Standard Gain Antenna - Manual (Page 9)

www.ets-lindgren.com Introduction 9
1.0 Introduction
The ETS-Lindgren Model 3160 Series Pyramidal Horn Antenna is a series of
pyramidal standard gain horn antennas designed specifically for utilization in
emissions and immunity testing over the frequency range of 1 GHz to 40 GHz.
The Model 3160 Series includes models 3160-01 through 3160-10.
Each Model 3160 Series antenna is linearly polarized and has medium gain,
wide half-power beamwidth (HPBW) in both the horizontal and vertical planes,
low VSWR over the recommended operating frequency range, and constant
antenna factors so that the antennas can be used without looking up tables or
charts.
The performance of the Model 3160 Series is precise and predictable through
design parameters. Both input and output are well matched to 50 Ω and 377 Ω
respectively. Comparisons of measured versus computed gain and antenna
factors have been found to be within ±0.5dB. The Model 3160 Series antennas
are considered to be the standard reference of measurements above 1 GHz, as
is the resonant dipole for measurements below 1 GHz.
Each Model 3160 Series antenna is ruggedly constructed for good
electromagnetic performance.
 Models 3160-01 through 3160-06 are welded using precise toolings
and aluminum sheet metal.
 Models 3160-07 and 3160-08 are investment casted using an
aluminum compound.
 Models 3160-09 and 3160-10 are electroformed using deposition of
copper at a rate of 0.001 inch/hour for the highest precision available.
 Models 3160-01 through 3160-08 are conversion coated and painted
for protection against corrosion and changes in the weather.