S-Band LNB,S band LNB,S band LNBS,S band LNA

Description

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	< 5 W	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 < 5W, high energy efficiency

■ 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 EnvironmentsNotes

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.