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The BeiDou omnidirectional ceramic high-precision positioning antenna is specially designed for handheld devices and walkie-talkies. It uses high-dielectric-constant ceramic material to achieve miniaturization and high gain, supporting multiple frequency bands such as BeiDou B1/B2/B3. With right-hand circular polarization (RHCP), it effectively suppresses multipath interference. Its cardioid-shaped radiation pattern provides a wide reception elevation angle (±90°), ensuring stable signal acquisition in complex environments. The built-in low-noise amplifier (LNA) enhances weak signal reception capability, making it suitable for high-precision positioning scenarios such as emergency rescue and special operations. Featuring a compact structure and easy integration, the ceramic dielectric also reduces human body interference, making it compatible with explosion-proof walkie talkies, single-BeiDou handheld terminals, and other devices.
Read More| Antenna | Omnidirectional ceramic antenna |
The BeiDou omnidirectional ceramic high-precision positioning antenna is specially designed for handheld devices and walkie-talkies. It uses high-dielectric-constant ceramic material to achieve miniaturization and high gain, supporting multiple frequency bands such as BeiDou B1/B2/B3. With right-hand circular polarization (RHCP), it effectively suppresses multipath interference. Its cardioid-shaped radiation pattern provides a wide reception elevation angle (±90°), ensuring stable signal acquisition in complex environments. The built-in low-noise amplifier (LNA) enhances weak signal reception capability, making it suitable for high-precision positioning scenarios such as emergency rescue and special operations. Featuring a compact structure and easy integration, the ceramic dielectric also reduces human body interference, making it compatible with explosion-proof walkie talkies, single-BeiDou handheld terminals, and other devices.
GPS Antenna Specifications
| NO. | Item | Specification | Post-Environmental Tolerance* |
| 1 | Receiving Frequency Range (MHz) | 1168-1188(MHz)
1559-1585(MHz) |
±2.5（MHz） |
|
2 |
Center Frequency (with 30 mm × 30 mm
ground plane) |
1568（MHz） | ±25（MHz） |
| 3 | Bandwidth (MHz) (Return Loss ≤ -10
dB) |
≥20（MHz） | ±25（MHz） |
| 4 | V.S.W.R (at Center Frequency) | ≤2.0 | ±0.5 |
| 5 | Gain (Zenith, dBi typ, with 70 mm square
GND plane) |
1 | ±0.5 |
| 6 | Axial Ratio (with 70 mm square GND | 6.0dB | ±0.2 |
| plane) | |||
| 7 | Polarization | Right-Hand Circular Polarization |
---- |
| 8 | Characteristic Impedance (Ω) | 50 | ---- |
| 9 | Frequency Temperature Coefficient
(ppm/°C) |
0±10 |
---- |
GPS Amplifier Specifications
| NO. | Item | Specification |
| 1 | Frequency Range | 1176-175（MHz） |
| 2 | Antenna Gain | 18dB±2dB |
| 3 | Output V.S.W.R | <2.0 |
| 4 | Noise Figure | ≤1.5dB |
| 5 | Supply Voltage (DC) | 1.8-3.6V |
| 6 | Operating Current (DC) | ≤5mA |
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