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Shenzhen Huashi Digital Technology Co., Ltd.
S-Band LNB Product Technical Specification
S-Band Low Noise Block Downconverter | Satellite Communication / Microwave Relay / Radar Receiving Systems
Product Overview
The S-Band LNB (Low Noise Block Downconverter) is a high-performance low noise block downconverter, specifically designed for high-end application scenarios such as satellite communication, microwave relay, and radar receiving systems. The product adopts an aluminum alloy shell, offering excellent heat dissipation performance and electromagnetic shielding capabilities, with a protection rating of IP65, making it resilient against harsh outdoor conditions.
It supports a wide operating voltage range (DC 12V~18V) and features typical power consumption of less than 5W, achieving high energy efficiency. The overall design is compact and lightweight (135×55×27mm, ≤450g), facilitating easy integration and installation, and is widely suitable for stable signal transmission in complex environments.
Frequency Configuration
Standard Frequency Configuration
The following outlines the frequency configuration schemes for conventional models. Items marked as (Custom) indicate special custom models with specific Local Oscillator (LO) frequencies:
No. |
Input Frequency |
Output Frequency |
L.O. Frequency |
1 |
2.52～2.67GHz |
950~1100 MHz |
3620 MHz |
2 |
2.3～2.7 GHz |
950 to 1350 MHz |
3650 MHz (Custom) |
3 |
2.2～2.7 GHz |
1050 to 1550 MHz |
3750 MHz |
4 |
2.5～2.9 GHz |
950 to 1350 MHz |
3850 MHz |
5 |
2.3～2.9 GHz |
1050 to 1650 MHz |
3950 MHz (Custom) |
6 |
2.2～2.7GHz |
950-1450MHz |
|
7 |
2.2～2.4GHz |
950～1150MHz |
|
8 |
2.5～2.7GHz |
950～1150MHz |
|
9 |
1.5～2.2GHz |
||
10 |
1.5～2.2GHz |
||
11 |
2.2～2.3GHz |
||
12 |
1.5～2.7GHz |
||
13 |
2.0～3.2GHz |
||
14 |
2.2～2.3GHz |
||
15 |
2.48～2.54GHz |
||
16 |
2.2～2.7GHz |
||
17 |
2.1～2.6GHz |
||
18 |
2.2～2.3GHz |
Special Wideband Configuration
The Special series covers a wide frequency band of 3~7GHz, suitable for advanced radar and satellite receiving systems:
No. |
Input Frequency |
Output Frequency |
L.O. Frequency |
1 |
3 to 4 GHz |
950 to 1950 MHz |
4950 MHz |
2 |
4 to 5 GHz |
750 to 1750 MHz |
5750 MHz |
3 |
5 to 6 GHz |
1050 to 2050 MHz |
3950 MHz |
4 |
6 to 7 GHz |
950 to 2050 MHz |
4505 MHz (Custom) |
Detailed Performance Specifications
The following details the complete technical parameters of the S-Band LNB, covering frequency characteristics, gain and noise, VSWR matching, power supply and consumption, phase noise, interface definitions, and physical environmental indicators:
Category |
Parameter |
Value |
Remarks |
Frequency Characteristics | |||
Noise Temperature |
45 K |
||
Gain |
60 dB |
Other gains available upon request |
|
Gain Flatness |
≤ 2 dB p-p / 500 MHz |
||
Output Saturation Level |
≥ 10 dBm |
||
VSWR & Matching | |||
Input VSWR |
≤ 2.0 |
||
Output VSWR |
≤ 1.5 |
||
Image Rejection Ratio |
≥ 35 dB |
Ensures signal purity |
|
Power & Consumption | |||
Operating Voltage |
DC 12V ~ 18V |
Approx. 200 mA |
|
Typical Power Consumption |
High energy efficiency |
||
Phase Noise | |||
@100 Hz |
≤ -65 dBc/Hz |
||
@1 kHz |
≤ -76 dBc/Hz |
||
@10 kHz |
≤ -85 dBc/Hz |
||
@100 kHz |
≤ -95 dBc/Hz |
||
Frequency Stability | |||
Internal Reference |
≤ ±1 ppm |
||
External Reference Requirement |
10 MHz, 0 ± 3 dBm |
||
Interface Type | |||
Input Interface |
N-50J |
Optional: N-50K / SMA-50J / SMA-50K |
|
Output Interface |
N-50K |
Optional: SMA-50K; supports DC + clock input + IF output |
|
Physical & Environmental | |||
Housing Material |
Aluminum Alloy |
Excellent heat dissipation & EMI shielding |
|
Protection Rating |
IP65 |
Withstands harsh outdoor conditions |
|
Dimensions |
136.2 × 53 × 26 mm |
≤ 470 g |
|
Operating Temperature |
-40℃ ~ +70℃ |
||
Operating Humidity |
0% ~ 100% |
||
Key Features
■ Image Rejection Ratio ≥ 35 dB, ensuring signal purity
■ Wide Voltage Input DC 12V~18V, adaptable to various power supply environments
■ Typical Power Consumption
■ Aluminum Alloy Housing for superior heat dissipation and electromagnetic shielding
■ Protection Rating IP65, suitable for harsh outdoor conditions
■ Compact and Lightweight Design for easy integration and installation
■ Customization support for Gain, Interface Types, etc.
Applications
Satellite Communication | Microwave Relay | Radar Receiving Systems | High-End Radio Monitoring | Signal Transmission in Complex Environments
Notes
Highlighted LO frequencies (3650MHz, 3950MHz, 4505MHz) denote special custom models; please verify during selection. Parameters such as gain can be customized according to customer requirements.
This document is provided by Shenzhen Huashi Digital Technology Co., Ltd. Specifications are subject to change without prior notice.
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