Satellite antenna features and parameters：
Main tech parameters：
Frequency range：10.75-12.95GHZ
Gain：44.0 dB
3dB：0.9°
First sidelobe ：-20dB
Polarization isolation：>30dB
VSWR：<1.3:1
Noise temperature (30 ° elevation angle): 35 ºk
Pitching/Orientation：manual adjustment
Bearing the adjusting rang is ：0°—360°
The adjusting range of elevation ：5°—85°
Feed interface：WR75
Wind loading rating：operation under 10 wind ,normal under 12 wind
Temperature ：-45℃ - 120℃ Humidity ：5% -95% Atmospheric Conditions：Salt , Pollutants and Contaminants as encountered in coastal and industrial areas
Reflector material：Glass fiber reinforced unsaturated polyester sheet molding compound（SMC)
Reflective surface thickness：3mm
高性能8分段网状抛物面天线技术文档
1. 产品概述
深圳市华视数码科技有限公司提供给电视台、运营商、无线覆盖合法单位网状天线，本技术文档详细介绍了一款高性能8分段网状抛物面天线，该天线专为2-13GHz宽频带通信设计，采用创新的卷胀式C/Ku波段网状反射面技术。天线直径达120英寸（3.0米），具有40.3dBi@4.2GHz和47.8dBi@12.2GHz的高增益特性，适用于卫星通信、远程链路传输等专业场景
。该天线采用8分段可拆卸设计，既保证了运输便利性（仅0.5CBM shipping size），又提供了优异的机械稳定性。其独特的主焦点四馈源支撑结构和0.38的F/D比率确保了在不同频段下的高效性能表现
。2. 核心技术特性
2.1 反射面系统
该天线的反射面采用卷胀式网状材料（Rolled Expanded C/Ku Mesh），这种设计在保持高表面精度的同时，显著减轻了天线整体重量（净重仅46kg）。网状结构不仅能有效降低风阻，还确保了在恶劣天气条件下的稳定性
。反射面由8个独立分段组成，每片均经过精密成型，保证组装后的抛物面精度达到波长级别（通常优于λ/10）。2.2 电气性能指标
该天线在2-13GHz的超宽频带内表现出色，其增益曲线符合抛物面天线的基本理论：
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G = 10 log10(4πA/λ² × η)
其中A为孔径面积，λ为波长，η为天线效率
。在实际测量中：- 4.2GHz频点：增益达40.3dBi，半功率波束宽度约1.2°
- 12.2GHz频点：增益达47.8dBi，半功率波束宽度约0.4°
天线的第一副瓣电平控制在-18dB以下，前后比优于30dB，确保了优异的抗干扰能力
。2.3 馈源系统
采用主焦点四馈源支撑设计（Prime Focus Quad Feed Support），馈源精确位于抛物面的焦点位置（焦距1160mm）。这种设计确保了电磁波的高效辐射和接收，减少了馈源遮挡造成的增益损失
。馈源系统支持双极化工作，可根据需要切换垂直或水平极化方式。3. 机械结构与安装特性
3.1 分段式结构设计
8分段设计使天线便于运输和现场组装。每个分段采用高强度铝合金框架配合网状反射面，在保证刚性的同时最大化减轻重量。分段连接处采用精确定位销和防腐蚀紧固件，确保组装后的整体形面精度
。表：天线机械参数汇总
| 参数类别 | 具体数值 | 备注 |
|---|---|---|
| 直径 | 120英寸（3.0米） | 8分段组合 |
| 焦距 | 45⅞英寸（1160mm） | F/D=0.38 |
| 净重 | 102磅（46kg） | 不含安装件 |
| 支撑杆直径 | 3.5英寸（89mm） | 标准接口 |
| 指向调整范围 | 俯仰0-90°，方位0-360° | 电动或手动 |
3.2 安装与调整系统
天线配备8点32英寸（813cm）环形支架，提供稳定的支撑基础。俯仰和方位调整机构采用精密齿轮传动，可实现精确的波束指向定位
。安装支架设计符合抗风性能要求，可在最大风速160km/h环境下稳定工作。4. 应用场景与技术优势
4.1 典型应用领域
- 卫星通信：在C波段和Ku波段提供可靠的卫星数据链路
- 远程点对点通信：适用于跨越障碍物的远距离数据传输
- 应急通信系统：快速部署能力使其成为应急通信的理想选择
- 科研测量：用于射电天文、大气监测等科学领域
4.2 技术优势分析
与传统固面抛物面天线相比，本产品具有以下显著优势：
- 运输便利性：分段设计使运输体积减少60%以上
- 快速部署：现场组装时间通常在2-4小时内
- 宽频带性能：单一天线覆盖2-13GHz频段，减少系统复杂度
- 环境适应性：网状表面对风载敏感度低，抗风性能优异
- 维护简便：单个分段损坏可单独更换，降低维护成本
5. 总结与展望
这款8分段网状抛物面天线代表了现代天线工程技术的高水平表现，结合了结构力学、电磁场理论和材料科学的最新进展。其独特的设计平衡了电性能、机械强度和部署便利性之间的矛盾，为远距离通信提供了高性能解决方案
。随着5G/6G技术发展和卫星互联网的普及，此类高性能天线的需求将持续增长。未来可进一步探索主动表面调整技术和智能材料应用，使天线能在不同环境下自动优化性能，满足未来通信系统更高要求
。5-Meter Aluminum Alloy Mesh Antenna Technical Specifications
Product Overview
The 5-meter aluminum alloy mesh antenna delivers exceptional performance for microwave communications, incorporating internationally standardized S/C/Ku-band compatibility. This high-precision system offers superior performance, quick installation, corrosion resistance, and reliable durability
.Key Features
• Premium Design
- Features an internationally popular black mesh design with a matte spray coating for an elegant, durable appearance that maintains its premium look over time
- Adds aesthetic value to building structures while providing long-lasting performance
• S/C/Ku-Compatible Reflective Surface
- Utilizes high-strength S/C/Ku aluminum alloy mesh designed with American technology
- Ensures optimal reception performance across all frequency bands
- Maintains signal integrity across multiple communication spectrums
• Triple Anti-Corrosion Treatment
- All steel components undergo triple protection: phosphating, electroplating, and weather-resistant outdoor resin spraying
- Even corrosion-resistant aluminum surfaces receive additional spray coating
- Specifically designed for coastal areas exposed to corrosive sea air environments
• Quick Installation Design
- Segmented reflector design with pre-assembled mesh and frame sections
- On-site installation requires only section assembly by technical personnel
- Reduces installation time while enhancing connection strength between mesh and frame
- Minimizes the impact of installer skill on final precision
• Robust All-Alluminum Reflector
- High-strength aluminum alloy frame combined with durable aluminum mesh surface
- Provides excellent wind resistance and long-term durability
- Maintains structural integrity under challenging environmental conditions
• Enhanced Structural Elements
- Intermediate Support Ring: Welded between antenna ribs to reinforce structurally weak areas
- Helps maintain designed curvature for improved antenna efficiency and reflectivity
- Wind-Resistant Structure: Low-wind-resistance design makes antenna lighter with reduced wind load
- Minimizes impact on rooftops during typhoon conditions
- Bridge-Rib Design: Unique rib structure offers higher strength than traditional hollow ribs
- Ensures exceptional sturdiness and durability
• Versatile Receiver Compatibility
- Supports both MMDS integrated downconverters and high-efficiency feed with separate downconverters
- Enables ultra-long-distance reception capabilities
- Suitable for various applications including remote signal reception
Applications
- Microwave communication systems
- Long-distance signal reception
- Broadcasting television station signal sources
- Coastal area installations requiring corrosion resistance
This advanced mesh antenna system represents the optimal combination of performance, durability, and aesthetic design for professional communication applications
