BDS+GPS dual-mode satellite communication Antenna

Satcom Antenna

BDS+GPS dual-mode satellite communication Antenna

Frequency Range(MHz)：BeiDou Launch: L (1615.68±4.08MHz)、

Beidou reception: S (2491.75±4.08MHz)、 Positioning: BDS B1, GPS L1

Gain (Beidou) ：Vertex gain ≥3.5dBi

Gain (Beidou) ：Elevation angle 70°≥1dBi

Gain (Beidou)： Elevation angle 20°≥-3.5dBi

Gain (B1/L1) ： Vertex gain ≥1dBi

VSWR ≤2.0

Input impedance : 50Ω

Antnna size Dimension: Φ104mm*12.8mm (excluding cable size)

Applications: In-vehicle navigation, drones, marine fisheries, outdoor adventures, emergency communications and other fields.

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BDS+GPS dual-mode satellite communication Antenna

Overview

This antenna is a multi-mode satellite communication antenna designed for the Beidou Satellite Navigation System (BDS) and the Global Positioning System (GPS). It supports the transmission of left-hand circularly polarized signals in the Beidou transmit band L (1615.68±4.08MHz) and the reception of right-hand circularly polarized signals in the Beidou receive band S (2491.75±4.08MHz). It is also compatible with right-hand circularly polarized signals in the BDS B1 and GPS L1 bands for high-precision positioning. The antenna integrates advanced signal processing technology to provide stable and reliable satellite communication and positioning services.

Key Features

• Multi-band and multi-mode support

Supports the key frequency bands of the two major global satellite navigation systems, Beidou and GPS, to achieve dual-mode positioning, improve positioning accuracy and reliability.

• Efficient polarization matching

According to the different Beidou transmission and reception frequency bands, the corresponding left-hand or right-hand circular polarization design is adopted to ensure the maximum signal transmission efficiency.

• Excellent antenna gain

It can maintain a high antenna gain at different elevation angles, especially at the vertex position, the gain reaches or exceeds 3.5dBi, and even at low elevation angles (such as 20°), it can maintain a gain of not less than -3.5dBi, ensuring the stability of signal reception.

• Low standing wave ratio

The standing wave ratio is ≤2.0, indicating that the antenna and the feeder system are well matched, reducing signal reflection and energy loss, and improving signal transmission efficiency.

• Standard impedance design

The input impedance is 50Ω, which is compatible with most communication equipment and easy to integrate and install.

• Compact structure design

The antenna is small in size (Φ104mm*12.8mm, excluding cables), which is easy to install on various devices, especially suitable for space-constrained application scenarios such as vehicles and handheld devices.

Specification

Electrical performance indicators:
Frequency Range(MHz)	BeiDou Launch L (1615.68±4.08MHz)
	Beidou reception S (2491.75±4.08MHz)
	Positioning BDS B1, GPS L1
Polarization	BeiDou Launch left-hand circular polarization (L)
	Beidou reception right-hand circular polarization (R)
	B1/L1 right-hand circular polarization (R)
Gain (dBi) (Beidou)	Vertex gain ≥3.5dBi
Gain (dBi) (Beidou)	Elevation angle 70°≥1dBi
Gain (dBi) (Beidou)	Elevation angle 20°≥-3.5dBi
Gain (dBi) (B1/L1)	Vertex gain ≥1dBi
VSWR	≤2.0
Input impedance (Ω)	50Ω
Structural features:
Antenna size Dimension (mm)	Φ104mm*12.8mm (excluding cable size)
Output connector	110mm line length first generation terminal (1.37 line)

Applications

1.In-vehicle navigation system: As a key component of the in-vehicle Beidou/GPS dual-mode navigation system, it provides high-precision and high-reliability positioning services, supporting vehicle navigation, path planning, location tracking and other functions.2.UAVs and aircraft: Provide stable satellite communication and positioning services for drones, small aircraft and other aircraft to ensure flight safety, route planning and precise landing.3.Marine fisheries: In the field of marine fisheries, the antenna can be used for the positioning and navigation of fishing boats, helping fishermen to accurately find fishing grounds and improve fishing efficiency.

4.Outdoor adventure and tourism: Provide reliable positioning services for outdoor explorers, hikers, etc., ensuring accurate navigation in complex environments and personal safety.

5.Emergency communication and rescue: In natural disasters, emergency rescue and other scenarios, as part of emergency communication equipment, it provides stable satellite communication and positioning services to provide strong support for rescue operations.