37–45 GHz V Band / Low-Q Band LNB with Integrated Feed Horn
Model Example: VB‑3745‑LNB
Application: V‑Band Satellite Earth Station Rx / Millimeter‑wave Link / RF Test Front‑End
No. | Parameter(参数) | Specification(技术指标) | Remark(备注) |
|---|---|---|---|
1 | RF Input Frequency Range(射频输入频段) | 37.0 ~ 45.0 GHz | Full V‑Band / Lower Q coverage |
2 | IF Output Frequency(中频输出频段) | 0.95 ~ 8.95 GHz 或 1.0 ~ 9.0 GHz | Positive / Inverted spectrum configurable |
3 | Local Oscillator Frequency(本振频率 LO) | 36.0 GHz 或 54.0 GHz | DRO / PLL internal |
4 | Conversion Gain(整机变频增益) | ≥ 50 dB | Typ. 52 ~ 58 dB |
5 | Noise Figure / Noise Temperature(噪声系数 / 噪声温度) | NF ≤ 3.5 dB / Tsys ≤ 350~500 K | @ 25°C ambient |
6 | Gain Flatness(增益平坦度) | ≤ ±1.5 dB (Full Band) | ≤ ±1.0 dB per 1 GHz sub‑band |
7 | Input VSWR(输入驻波比 RF Port) | ≤ 2.0 : 1 | Waveguide / Feed interface |
8 | Output VSWR(输出驻波比 IF Port) | ≤ 1.5 : 1 (N / SMA) | 50 Ω |
9 | Image Rejection(镜像抑制) | ≥ 40 dBc | Image‑reject mixer |
10 | LO Phase Noise @ 10 kHz Offset(本振相位噪声) | ≤ –85 dBc/Hz | PLL version |
11 | LO Frequency Stability(本振频率稳定度) | ± 3 ppm (–40 ~ +70°C) | OCXO referenced optional |
12 | P1dB Output(输出 1dB 压缩点) | ≥ +5 dBm | Typ. +8 ~ +10 dBm |
13 | Cross Pol Isolation(交叉极化隔离度) | ≥ 25 dB | Dual pol feed version |
14 | Polarization Support(极化方式) | Linear Single / Dual Linear / Circular | Per feed horn config |
15 | External Reference(外参考时钟) | 10 MHz, ≥ +5 dBm sine | Auto‑detect int/ext |
No. | Parameter | Specification |
|---|---|---|
16 | Feed Horn Type(馈源形式) | Corrugated Scalar Feed Horn, optimized for offset & prime‑focus |
17 | Waveguide Interface(波导接口) | WR‑22 (BJ400) or WR‑28 (BJ320) per freq plan |
18 | Flange Type(法兰标准) | UG‑387/U‑M / UG‑599/U (industry standard) |
19 | F/D Adaptation(适配焦径比) | F/D = 0.35 ~ 0.45 (matched to dish) |
20 | Illumination Efficiency(照射效率) | ≥ 80% |
21 | Feed Insertion Loss(馈源插入损耗) | ≤ 0.3 dB |
No. | Parameter | Specification |
|---|---|---|
22 | RF / IF Connectors(中频输出) | N‑Type 50 Ω Female / SMA‑K optional |
23 | DC Power Input(供电方式) | +12 VDC ~ +24 VDC via IF coax (Power‑over‑Coax) |
24 | Power Consumption(功耗) | ≤ 12 W (typical) |
25 | Operating Temperature(工作温度) | –40 °C ~ +65 °C (Industrial Grade) |
26 | Storage Temperature(存储温度) | –50 °C ~ +85 °C |
27 | Humidity(湿度) | 0 ~ 100% RH (condensing) |
28 | Ingress Protection(防护等级) | IP65 (feed & electronics sealed) |
29 | Housing Material(外壳材质) | Die‑cast Aluminum, weather‑proof coating |
30 | Dimensions L×W×H(外形尺寸) | ≈ 160 × 85 × 70 mm (excluding feed) |
31 | Weight(重量) | ≤ 650 g |
ITU‑R S.580 / S.465 — Earth station antenna pattern compliance
ETS 300 019 / MIL‑STD‑810G — Environmental test methods
FCC Part 25 / ETSI EN 301 459 — Satellite Rx equipment compliance (where applicable)