WR90 X-Band High Performance LNB Feed Horn
Datasheet
Executive Overview
Shenzhen Huashi Digital Technology Co., Ltd. supplies circular polarization & linear polarization feed horns for PLC, Ku, Ka, K, Q, V, W Bands.Engineered for premium satellite receiving systems, this WR90 X-band precision feed horn is optimized for prime-focus parabolic antennas and offset reflector antennas. Adopting aerospace-grade electroplating process and compact radiation profiling design, it delivers ultra-low RF insertion loss, superior port isolation, ultra-low standing wave impedance matching, and outstanding anti-electromagnetic interference capability. Tailored for professional ground station, defense satellite communication, meteorological monitoring and enterprise VSAT network deployment, it ensures full-band stable signal coupling and long-duration outdoor operational reliability.
Fundamental Electrical & Mechanical Specifications
Technical Item | Premium Specification | Engineering Remark |
Waveguide Standard | WR90 | International standardized rectangular waveguide |
Flange Interface | PDR90 / UG-407/U | High-precision bolted flange, seamless docking |
Cut-off Frequency | 7.05 GHz | Exclusive X-band passband design |
Operational Frequency Band | 7.25 GHz ~ 8.40 GHz (X-Band Downlink) | Full coverage for global geostationary X-band satellite downlink |
Polarization Configuration | Single Linear / Orthogonal Dual Linear Polarization | Custom polarization angle available on request |
Compatible Antenna Aperture | Offset Dish: 0.6m - 2.4mPrime Focus Parabolic Dish: 1.2m - 6.0m | Optimized illumination pattern for full-range reflector matching |
Core Premium RF Performance Metrics
RF Parameter | Typical Premium Value | Absolute Maximum Limit | Performance Value |
Insertion Loss (Full Band) | ≤0.22 dB | ≤0.30 dB | Minimize signal attenuation, upgrade system C/N ratio, lower receiver noise floor |
VSWR (Waveguide Terminal) | ≤1.12 | ≤1.18 | Ultra-high impedance matching, eliminate standing wave reflection, avoid LNB local oscillator loss-of-lock |
VSWR (LNB Coupling Port) | ≤1.15 | ≤1.20 | Flat gain response, zero signal amplitude fluctuation under full-band operation |
Orthogonal Polarization Isolation | ≥32 dB Full Band | ≥28 dB Minimum | Powerful suppression of horizontal & vertical polarization crosstalk, reduce system BER drastically |
Cross Polarization Discrimination (XPD) | ≥28 dB | ≥25 dB | Strong anti-adjacent frequency interference, adapt complex electromagnetic site environment |
Aperture Illumination Efficiency | ≥86% | ≥82% | Maximize reflector gain utilization, optimize edge taper performance |
Additional Noise Contribution | ≤0.15 dB | ≤0.20 dB | No degradation on original LNB noise figure, maintain receiving sensitivity |
RF Power Handling Capacity | Continuous: 50W / Peak: 180W | — | High power endurance, fit long-term uninterrupted professional station operation |
Material & Environmental Reliability Grade
Aerospace Grade Material: Oxygen-free copper integral cavity, inner wall thick silver-gold composite electroplating, anti-oxidation, ultra-low high-frequency skin effect loss
Ingress Protection Level: IP67 Full waterproof & dustproof
Operational Ambient Temperature: -45℃ ~ +70℃
Storage Temperature Range: -55℃ ~ +75℃
Structural Design: Integrated pressure-resistant sealing structure, anti-condensation, anti-salt fog, anti-corrosion for coastal & industrial harsh sites
Antenna Matching Principle
5.1 Offset Reflector Antenna
Custom offset focal beam profiling design, zero reflector shielding loss. Matched with medium-small caliber offset antennas, applied for rooftop fixed terminals, shipborne vehicular mobile satellite receiving terminals, compact outdoor VSAT nodes.
5.2 Prime Focus Parabolic Antenna
Uniform central focal radiation, high-gain focused coupling. Compatible with large-caliber ground fixed stations, dedicated meteorological satellite receiving stations, defense encrypted satellite receiving systems.
Premium Application Scenarios
6.1 National Meteorological & Hydrological Monitoring
Specialized X-band polar orbit meteorological satellite signal reception, all-weather atmospheric cloud data acquisition, flood warning remote sensing signal demodulation for national monitoring stations.
6.2 Defense & Government Private Satellite Network
Encrypted satellite data transmission, border unattended monitoring links, military shipborne/vehicleborne portable satellite communication terminals, anti-jamming secure receiving system construction.
6.3 Enterprise & Energy Industrial VSAT System
Offshore oil platform, remote mining base, cross-regional enterprise private network satellite backhaul, stable voice, video and industrial data long-distance transmission.
6.4 Professional RF Calibration & Laboratory Testing
Microwave anechoic chamber standard radiation source, X-band antenna pattern/gain calibration, waveguide component and satellite front-end assembly performance verification.
6.5 Emergency Command Satellite Communication
Natural disaster emergency rescue mobile satellite station, regional emergency command wireless link, rapid deployment all-weather emergency communication terminal front-end.
Core Competitive Advantages (High-end Market)
Industry-leading ultra-low insertion loss ≤0.22dB, reserve full weak satellite signal, excellent link margin under rain fade, sandstorm and high-interference environment
Ultra-low VSWR industrial tuning, optimized whole-system impedance matching, realize 24/7 zero-fault stable receiving operation
32dB+ high polarization isolation, independent anti-crosstalk structure design, support multi-polarization concurrent satellite signal reception
Standard WR90 universal waveguide interface, full compatibility with global premium X-band LNB modules, plug-and-play installation and replacement
IP67 high-grade protection + composite anti-corrosion coating, adapt polar high-cold, coastal salt fog, desert high-temperature extreme outdoor working scenarios
WR90 X 波段高性能高频头馈源喇叭 产品规格书
1. 概述
深圳市华视数码科技有限公司提供R90 X 波段精密馈源喇叭专为高端卫星接收系统研发，适配正馈抛物面天线与偏置反射面天线。产品采用航空级电镀工艺与紧凑型辐射剖面设计，具备射频插入损耗极低、端口隔离度优异、驻波阻抗匹配度极高、抗电磁干扰能力突出等特性。适用于专业地面站、卫星通信、气象监测及企业 VSAT 卫星专网部署，可实现全频段信号稳定耦合，满足长期户外可靠运行需求。
2. 基础电气与机械参数
表格
技术项目 | 高端规格参数 | 工程说明 |
波导标准 | WR90 | 国际标准矩形波导 |
法兰接口 | PDR90 / UG-407/U | 高精度螺栓法兰，无缝对接 |
截止频率 | 7.05 GHz | 专属 X 波段通带设计 |
工作频段 | 7.25 GHz ~ 8.40 GHz（X 波段下行） | 完整覆盖全球地球同步轨道 X 波段卫星下行频段 |
极化配置 | 单一线极化 / 正交双线极化 | 可按需定制极化角度 |
适配天线口径 | 偏置天线：0.6m ~ 2.4m正馈抛物面天线：1.2m ~ 6.0m | 优化照射波形，适配全规格反射面天线 |
3. 核心高端射频性能指标
表格
射频参数 | 典型优质值 | 极限最大值 | 性能说明 |
全频段插入损耗 | ≤0.22 dB | ≤0.30 dB | 最大限度降低信号衰减，提升系统载噪比，压低接收机噪声基底 |
波导端口驻波比 (VSWR) | ≤1.12 | ≤1.18 | 超高阻抗匹配，消除驻波反射，防止高频头本振失锁 |
高频头耦合端口驻波比 (VSWR) | ≤1.15 | ≤1.20 | 增益响应平坦，全频段工作无信号幅度波动 |
正交极化隔离度 | 全频段≥32 dB | 最低≥28 dB | 强力抑制水平、垂直极化串扰，大幅降低系统误码率 |
交叉极化鉴别率 (XPD) | ≥28 dB | ≥25 dB | 强效抑制邻频干扰，适配复杂电磁环境站点 |
口径照射效率 | ≥86% | ≥82% | 最大化反射面增益利用率，优化边缘衰减特性 |
附加噪声增量 | ≤0.15 dB | ≤0.20 dB | 不恶化原高频头噪声系数，保障接收灵敏度 |
射频功率承载能力 | 连续功率：50W / 峰值功率：180W | — | 高功率耐受，满足专业站点全天候不间断运行 |
4. 材质与环境防护等级
航空级材质：无氧铜一体成型腔体，内壁厚层金银复合电镀，抗氧化，大幅降低高频趋肤效应损耗
防护等级：IP67 全防水防尘
工作环境温度：-45℃ ~ +70℃
存储温度范围：-55℃ ~ +75℃
结构设计：一体式耐压密封结构，防凝露、防盐雾、耐腐蚀，可用于沿海、工业严苛场景
5. 天线匹配原理
5.1 偏置反射面天线
采用定制偏置焦面波束剖面设计，无反射面遮挡损耗。适配中小型口径偏置天线，应用于楼顶固定终端、船载 / 车载移动卫星接收终端、紧凑型户外 VSAT 节点。
5.2 正馈抛物面天线
中心聚焦均匀辐射，高增益耦合。适配大口径地面固定站、专用气象卫星接收站、专用加密卫星接收系统。
6. 高端应用场景
6.1 气象水文监测
专业接收 X 波段极轨气象卫星信号，全天候采集大气云图数据，为全国监测站点提供洪涝预警遥感信号解调支持。
6.2 政务专用卫星网络
加密卫星数据传输、边境无人值守监测链路、便携车载 / 船载卫星通信终端、抗干扰保密接收系统搭建。
6.3 企业与能源行业 VSAT 系统
海上石油平台、偏远矿山基地、跨区域企业专网卫星回传，稳定传输远距离语音、视频及工业业务数据。
6.4 专业射频校准与实验室测试
微波暗室标准辐射源、X 波段天线方向图 / 增益校准、波导器件与卫星前端组件性能验证。
6.5 应急指挥卫星通信
自然灾害应急救援移动卫星站、区域应急指挥无线链路、可快速部署的全天候应急通信终端前端。
7. 高端市场核心竞争优势
行业领先超低插入损耗≤0.22dB，完整保留微弱卫星信号，在雨衰、沙尘、高干扰环境下具备充足链路余量
工业级超低驻波比调校，整机阻抗匹配优化，可实现 7×24 小时无故障稳定接收
≥32dB 高极化隔离度，独立抗串扰结构设计，支持多极化卫星信号同步接收
标准 WR90 通用波导接口，全球主流 X 波段高频头完全兼容，安装替换即插即用
IP67 高防护等级 + 复合防腐涂层，可适配极地严寒、沿海盐雾、沙漠高温等极端户外工况
术语注释（行业标准释义）
Feed Horn：馈源喇叭（卫星天线前端射频辐射耦合器件）
LNB：低噪声下变频器，行业统称高频头
VSWR：电压驻波比，表征射频端口阻抗匹配优劣
XPD：交叉极化鉴别率，衡量天线极化纯净度
VSAT：甚小孔径卫星终端，小型卫星地面接收站系统
BER：误码率，数字卫星通信信号传输质量核心指标
