ORBIT FR Wideband horns User Manual

REFERENCE ANTENNAS

>

Wideband Horns

Typical 3D radiation pattern

The SATIMO wideband horns
have been selected as high
reliability reference antennas
in international measurement
facility comparison campaigns.

REFERENCE ANTENNAS

> Main use:

• Gain reference

• Wideband probes for far-fi eld test ranges

• Refl ector feeds for high gain applications

> Delivered documents:

• Typical performance data (TYMEDATM)

Measured return loss data

•

> Surface treatment:

• Alodine 1200 according to MIL-C 5541E class 3

• Blue paint

> Related services:

• Calibration and maintenance

• Customization

➊ TECHNICAL PERFORMANCE

• Stable gain with frequency

• Linear polarized with high polarization purity

• Low return loss / VSWR

• Wide bandwidth

➋ DESIGN

• The horn maintains a well defi ned smooth

radiation pattern in the direction of the boresight
axis throughout the operational bandwidth

• The unique design prevents excitation

of unwanted higher order modes in the aperture

• Lightweight for easy handling

➌ REPEATABILITY

• Stiff and robust mechanical design

• Standard SATIMO circular interface for precision

centering

• Precision pin for accurate polarization alignment

• Precision machined

• High reliability connector

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Electrical characteristics

Part number SH 68 SH 200 SH 400 SH 600 SH 800 SH 2000 SH 4000

Type of antenna Dual ridge Dual ridge Dual ridge Dual Ridge Dual ridge Dual ridge Dual ridge

Frequency range 68 – 1020 MHz 0.2 – 3 GHz 0.4 – 6.0 GHz 0.6 – 9 GHz 0.8 – 12 GHz 2.0 – 32 GHz 4.0 – 40 GHz

Average gain 5 – 15 dBi 7 – 15 dBi 7 – 15 dBi 7 – 15 dBi 7 – 15 dBi 4 – 15 dBi 4 – 15 dBi

VSWR < 1.9 < 1.9 < 1.9 < 1.9 < 1.9 < 1.9 < 1.9

Return loss < -10 dB < -10 dB < -10 dB < -10 dB < -10 dB < -10 dB < -10 dB

Polarization Single linear Single linear Single linear Single linear Single linear Single linear Single linear

Cross-polar
discrimination > 45 dB > 45 dB > 45 dB > 45 dB > 45 dB > 45 dB > 45 dB

Impedance 50 Ohms 50 Ohms 50 Ohms 50 Ohms 50 Ohms 50 Ohms 50 Ohms

Boresight gain vs frequency

Return loss vs frequency

Measured performance of 4 SH 400 horns: the excellent performance repeatability is proven by the agreeing
plots.

> Measurement antennas

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