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Built-in single-frequency BDS positioning antenna specification

创始人2025-01-15

TDXL-BSA501 is a high-precision measurement built-in antenna designed for supporting BDS single-frequency B3I. It meets the current demands for compatibility with the BDS positioning system and high-precision measurement requirements. It could widely applicable in geodetic surveying, marine surveying, precision agriculture, deformation monitoring and other high-precision navigation and positioning scenarios

1、Using multi-feed miniaturized design, the antenna enables the right circular polarization and phase center performance, as well as minimizes the impact of measuring error.

2、The antenna unit offers high gain and minimal gain roll-off, providing excellent reception of low elevation satellite signals and ensuring normal reception in severely obscured locations.

3、The pre-filter circuit design can effectively reduce interference with signal reception, ensuring measurement accuracy.

Signal support	BDS： B3I
Output impedance	50Ω
Operating frequency	B3I(1268.52±10.23) MHz
Polarization	RHCP
Gain at zenith	≥2.0dBi
Elevation gain（30°）	≥-4.0dBi
Elevation coverage	360°
Output V.S.W.R.	≤2.0
LNA index
Gain	43±2dB
Noise figure	≤2.0dB
Output V.S.W.R.	≤2.0
Flatness in band	±1dB
Operating current	≤40mA
Isolation	≥40dB（B3I&L）
Mechanical characteristics
Connecting type	MCX（customizable）
Dimension	D 50.0±1.0mm H 11.2±0.50mm （See the attached figure）
Weight	≤100g
Operating environment
Operating temperature	-40℃~﹢70℃
Storage temperature	-55℃~﹢85℃
Humidity	95% non-condensing

Related models：TDXL-BSA501
Dimension：

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