Page 1
REFERENCE ANTENNAS
>
Standard Gain Horns
Typical 3D radiation pattern
REFERENCE ANTENNAS
> Main use:
• Gain calibration
• Antenna measurements
> Delivered documents:
• Theoretical gain versus frequency information data
•
Measured return loss
> Surface treatment:
• Alodine 1200 according to MIL-C 5541E class 3
• Blue paint
> Related standard:
• NRL report 4433
> Included equipment:
• Mounting fl ange
• Integral coaxial transition with high precision SMA
Female connector
> Related services:
• Calibration and maintenance
• Customization
SMART POSITIONING
The circular interface allows the user
to position and center the antenna
with very high accuracy. The horn
is fastened to the customer’s
mounting support by four screws
and the alignment is determined
by a precision pin in the mechanical
interface plate.
➊ TECHNICAL PERFORMANCE
• Stable gain with frequency
• Linear polarization
• Low return loss / VSWR
➋ DESIGN
• Lightweight for easy handling
• Designed to meet NRL 4433
➌ REPEATABILITY
• Stiff and robust mechanical design
• Standard SATIMO circular interface
for precision centering
• Precision pin for accurate polarization alignment
• Precision machined
• High reliability integral connector
28
Page 2
Electrical characteristics*
Part number SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH
049 075 096 112 170 260 395 585 705 820 1000 1240 1800 2650
Type of antenna Horn Horn Horn Horn Horn Horn Horn Horn Horn Horn Horn Horn Horn Horn
Frequency range 0.49 – 0.75 – 0.96 – 1.12 – 1.70 – 2.60 – 3.95 – 5.85 – 7.05 – 8.20 – 10.00 – 12.40 – 18.00 – 26.50 –
in GHz 0.75 1.12 1.45 1.70 2.60 3.95 5.85 8.20 10.00 12.40 15.00 18.00 26.50 40.00
Wave guide band WR1500 WR 975 WR 770 WR 650 WR 430 WR 284 WR 187 WR 137 WR 112 WR 90 WR 75 WR 62 WR 42 WR 28
Gain at center
frequency 15.5 15.5 13.7 15.5 15.5 18.0 18.0 22.1 18.0 22.1 24.7 24.7 24.7 24.7
Polarization Linear Linear Linear Linear Linear Linear Linear Linear Linear Linear Linear Linear Linear Linear
VSWR 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1 1.4:1
Return loss < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB < -15 dB
On-axis cross polar
discrimination > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB > 40 dB
Power handling
(continuous wave)
SMA 500 W 500 W 500 W 450 W 360 W 300 W 250 W 190 W 180 W 160 W 150 W 140 W 120 W –
N 1600 W 1600 W 1600 W 1500 W 1000 W 900 W 700 W 600 W 570 W 500 W – 400 W – –
K – – – – – – – – – – – – – 20 W
Impedance 50 Ohms
* Standard gain horn at intermediate frequency ranges are also available.
(1) 25°C at sea level depending on RF connector type.
(1)
SGH 170 H plane cut at 1800 MHz
SGH 170 co & cross polarization vs frequency
SGH 170 H plane cut at 1825 MHz
> Measurement antennas
SGH 170 E plane cut at 2000 MHz
29
Page 3
Mechanical characteristics
Part number SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH SGH
049 075 096 112 170 260 395 585 705 820 1000 1240 1800 2650
Dimensions 1252 x 853 x 643 x 583 x 515 x 539 x 360 x 523 x 233 x 353 x 441 x 368 x 257 x 185 x
L x W x H 1289 x 836 x 561x 561 x 373 x 328 x 220 x 293 x 130 x 198 x 187 x 153 x 103 x 70 x
956 mm 620 mm 417 mm 417 mm 277 mm 244 mm 164 mm 218 mm 97 mm 148 mm 154 mm 126 mm 84 mm 58 mm
Weight (approx) 26.8 Kg 15 Kg 8.1 Kg 7.2 Kg 3.2 Kg 2.6 Kg 1.2 Kg 2.1 Kg 0.5 Kg 0.9 Kg 1.3 Kg 0.7 Kg 0.4 Kg 0.2 Kg
Connector SMA
Female Female Female Female Female Female Female Female Female Female Female Female Female Female
(N
(1)
(2)
type (N
optional) optional) optional) optional) optional) optional) optional) optional) optional) optional) optional)
Material Aluminum
Treatment Alodine
Color Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue
Interface (Ø) 110 mm 110 mm 110 mm 110 mm 110 mm 110 mm 110 mm 60 mm 60 mm 60 mm 60 mm 60 mm 60 mm
(1) SWMI type 212-503 SF
(2) SWMI type 312-14 SF
(3) SWMI type 212-513 SF
(4) SWMI type 1012-23 SF
(5) Equivalent to MIL-C5541 E class 3
Mechanical drawing & interface SGH 1800
SMA
(2)
(1)
SMA
type (N
(1)
(2)
type (N
SMA
(2)
(1)
type (N
SMA
(2)
(1)
type (N
SMA
(2)
(1)
type (N
SMA
(2)
(1)
type (N
(5)
SMA
(2)
type (N
1200
(1)
SMA
(2)
(1)
type (N
(1)
SMA
SMA
(2)
type (N
(3)
SMA
(2)
(3)
type
SMA
(3) K(4)
M5
67.2
ø110
67.2
“W”
ø4 H7
ø65
ø35.4
“L”
ø60
M4
“H”
ø3 H7
ø50
SGH 395
30
See interface
Loading...