4.5m Earth Station Telecommunication Satellite Antenna

Product Specifications

Prod Model:	NS-SEC-450
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Antenna Diameter:	4.5m
Operation Band:	C/Ku Band Optional
Drive Mode:	Manual/Motorized
Polarization:	C Band: Linear or Circular; Ku Band: Linear
Antenna Type:	Ring Focus
Usage:	Communication Antenna
Operating Wavelength:	Microwave
VSWR:	<1.5
Material:	Aluminium
Directionality:	Bilateral Antenna

Product Description

4.5m fixed station antenna's Characteristics:
Conform to the CCIR580-4 standards and INTELSAT access requirements;
Ring focus antenna;
High gain, Low sidelobe, high G/T value;
Hot-DIP zinc processed Antenna mount, with strong corrosion resistant ability;
Optional C band with 870 MHz bandwidth;
2-ports or 4 ports Linear/Circular feed optional;
Automatic feed switching system for Linear and circular polarization;
Antenna azimuth ± 65° Continuous rotation

Type	NS-SEC-450		NS-SEC(Ku)-450
Operating Frequency,GHz	C-Band		Ku-Band
	Receive	Transmit	Receive	Transmit
	3.625~4.2	5.85~6.425	10.95~12.75	13.75~14.5
Gain, Mid-Band, dBi	44	47.3	53.2	54.3
Polarization	Linear or Circular		Linear
XPD(on axis),dB	35	35	35	35
Axial Ratio(2 port)	1.30	1.09	/	/
Axial Ratio(4 port)	1.06	1.06	/	/
VSWR	1.25:1	1.25:1	1.25:1	1.25:1
Antenna Noise Temperature            10°Elevation             30°Elevation             50°Elevation	34°K 22°K 21°K	/	51°K 41°K 38°K	/
Typical G/T ( El.>10°)	25.9 dB/°K (30°L N A  )	/	32.3 dB/°K (70°L N A  )	/
-3dB Beam width, Mid-Band	1.05°	0.72°	0.37°	0.33°
Tx. Power Capability, KW	/	5	/	2
Feed interface	CPR-229G	CPR-137G	WR-75	WR-75
Feed Insertion Loss, dB	≤0.2	≤0.2	≤0.2	≤0.25
Rx-Rx, Tx-Tx  Linear, dB	30	30	30	30
Tx-Tx, Rx-Rx  Circular, dB	21	21	/	/
Isolation, Tx to Rx, dB	90		85
First Sidelobe,dB 90% Peaks under Following envelop,dBi	-14 29 - 25 logθ(1°≤θ<20°)		-14 29 - 25 logθ(1°≤θ<20°)

  MECHANICAL SPECIFICATIONS

Antenna Diameter	4.5m
Antenna Type	Ring Focus
Mount Type	El. Over Az.
Surface Accuracy(RMS)	≤0.5 mm
Weight(Net)	870kg (Manual);988kg(Motorized)
Antenna Pointing Range(Continuous) Azimuth  Elevation Polarization	±65°(Continuous) 0°~90°(Continuous) ±90°(Continuous)
Drive Mode	Manual or Motorized
Motor Drive System  Azimuth Travel Rate Elevation Travel Rate Polarization speed	0.11°/S    0.17°/S    1°/S

 ENVIRONMENTAL SPECIFICATIONS

Wind speed of work	72kmph work wind speed(Hold the precision ) 97kmph work wind speed(Lower the precision )   200kmph Survival Winds(Upturned lock)
Ice Load, Survival	13mm Wrapped ice normal work 25mm Wrapped ice survival
Temperature	-30°C~50°C
Relative Humidity	100%
Surface treatment	Steel parts:  thermal-spraying  zinc  Aluminum parts:spray paint
Solar Radiation	1135Kcal/h/m2
The specifications may change without notice.