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7.3m Fixed Earth Station Antenna

The JP-A4.5M-C/Ku is a 7.3 -meter ring-focus satellite communication antenna with an A-E pedestal, supporting dual-band (C/Ku) transmission and reception. It complies with GB/T19001-2008, GJB9001B-2009, and ITU-T/ITU-R technical standards.

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  • Commodity name: 7.3m Fixed Earth Station Antenna

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  • Product Description
  • Overview

    The JP-A4.5M-C/Ku is a 7.3 -meter ring-focus satellite communication antenna with an A-E pedestal, supporting dual-band (C/Ku) transmission and reception. It complies with GB/T19001-2008, GJB9001B-2009, and ITU-T/ITU-R technical standards.

     

    Technical Features

    • High-Efficiency Dual-Reflector Design

    Features a shaped dual-reflector system for superior electrical performance, including high gain, low sidelobes, and excellent cross-polarization isolation.

    • Robust structural Engineering

    Optimized for aesthetics, rigidity, and ease of installation, with exceptional wind resistance.

    • Advanced Anti-Corrosion Protection

    Reflector panels coated with triple-proof strontium yellow primer and polyurethane topcoat.

    Steel components undergo sandblasting, zinc spraying, and dual-layer coating (strontium yellow primer + polyurethane) for maximum durability.

     

    Performance Specifications

    Parameter

    JP-A7.3M-C

    JP-A7.3M-Ku

    C-Rx

    C-Tx

    Ku-Rx

    Ku-Tx

    Electrical Performance

    Frequency (GHz)

    3.40-4.20

    5.85-6.65

    10.95-12.75

    13.75-14.50

    Gain(dBi)

    ≥47.8 + 20lg(f/4)

    ≥51.3 + 20lg(f/6)

    ≥57.0 + 20lg(f/6)

    ≥58.3 + 20lg(f/12)

    VSWR

    ≤1.25:1

    ≤1.25:1

    ≤1.25:1

    ≤1.25:1

    Beamwidth (-3dB)

    ≤0.73°

    ≤0.49°

    ≤0.25°

    ≤0.21°

    Beamwidth(-10dB)

    ≤1.34°

    ≤0.89°

    ≤0.46°

    ≤0.38°

    Noise Temperature (K)

    2/4 ports

     

    2/4 ports

     

    10° Elevation

    ≤46/52

     

    ≤57/68

     

    20° Elevation

    ≤38/44

     

    ≤49/59

     

    30° Elevation

    ≤36/42

     

    ≤47/57

     

    Power Capacity(kW)

     

    5

     

    1

    Interface Type

    CPR-229G

    CPR-159G/137G

    WR-75

    Polarization

    Linear/Circular

    Linear

    Insertion Loss (dB)

    ≤0.3/0.4

    ≤0.3/0.4


    ≤0.35/0.5


    ≤0.35/0.5

    Port Isolation (dB)

     

     

     

     

    Rx-Tx

    ≥85

    ≥85

    Linear (Rx-Rx, Tx-Tx)

    ≥30

    ≥30

    ≥30

    ≥30

    Circular (Rx-Rx, Tx-Tx)

    ≥21

    ≥21

     

     

    Cross-Pol Isolation (Axial, Linear)

    ≥35

    ≥35

    ≥35

    ≥35

    Axial Ratio (dB)

    ≤0.9/0.5

    ≤0.9/0.5

     

     

    First Sidelobe (dB)

    ≤–14

    ≤–14

    ≤–14

    ≤–14

    Sidelobe Envelope (90%) 
    Upper Sidelobe Compliance

    29–25lg (θ) dBi     1°≤θ≤20°

    –3.5dBi            20°<θ26.3°

    32–25lg(θ) dBi     26.3°<θ48°

    –10dBi            θ>48

    Mechanical Performance

    Azimuth Range

    ±170°

    Continuous

    Elevation Range

    5°~90°

    Continuous

    Polarization Rotation

    ±90°

     

     

    Surface Accuracy

    ≤0.5 mm (R.M.S)

     

     

    Surface Coating

    Reflector: Anti-corrosion primer + polyurethane topcoat 
    Steel: Sandblasting + zinc spray + primer/polyurethane

    Optional coatings for steel

    Weight

    6700 kg

     

     

    Environmental Ratings

    Operational Wind Speed

    20.8 m/s (full precision) 
    28.4 m/s (reduced precision)

     

     

    Stowed wind speed

    35 m/s

     

     

     

    Survival wind speed

    55 m/s

     

     

    Locked zenith position

    Temperature

    –40°C to +60°C(outdoor) 
    –20°C to +55°C (indoor)

     

     

    Humidity

    0%~100%

     

     

    Seismic (Survival)

    0.3 G’s(horizontal) 
    0.15 G’s (vertical)

     

     

    Solar Radiation

    360 BTU/h/ft²

     

     

    Ice Load

    3 cm

     

     

     

Keywords:

7.3m C/Ku-band Satellite Antenna

Dual-Band Ring-Focus Earth Station

JP-A7.3M-C/Ku Large Aperture Antenna

High-Gain Parabolic Reflector (7.3m)

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