User's Manual

IDS Ingegneria Dei Sistemi S.p.A. N doc: MN/2009/071 - Rev. 1.1
IBIS-S v. 1.0 - User Manual
Config.: IBIS-S-PRCS-OUT-MN
27 / 48
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Gain Elevation Azimuth
Antenna Type
[dBi] [deg] [deg]
1 - IBIS-H23
-3 dB azimuth beamwidth 10 11
-10 dB azimuth beamwidth
23,5
30 23
2 - IBISH20
-3 dB azimuth beamwidth 15 17
-10 dB azimuth beamwidth
20
45 34
3 - IBIS-H15
-3 dB azimuth beamwidth 25 29
-10 dB azimuth beamwidth
15
49 53
4 - IBISH13
-3 dB azimuth beamwidth 18 38
-10 dB azimuth beamwidth
13,5
30 70
Tab. 4-2 – Ku band Antennas characteristics
4.2.2 X band system antennas
The X band IBIS-S system is provided with two identical antennas operating in vertical
polarisation and characterised by a maximum gain of 21dBi. The amplitude characteristics
of the antenna main lobe at -3 dB and -10 dB are provided in Tab. 4-3 and its vertical and
horizontal patterns are shown in Fig. 4.13 and Fig. 4.14. For further details see appendix
6.2C.1 - .
X band
antenna
HORIZONTAL
PLANE
VERTICAL
PLANE
-3 dB
15° 15°
-10 dB
27° 25°
Tab. 4-3 – Width of the main lobes of the X band antennas at -3 dB and -10 dB
Fig. 4.13 – X band antenna vertical plane
pattern
Fig. 4.14 – X band antenna horizontal plane
pattern