一种宽带多网组合卫星导航终端天线

Multi-network Broadband Antenna for Satellite Navigation Terminal

中文关键词:  天线  小型化  多频段  增益  卫星导航

英文关键词:antenna  miniaturization  multi-band  gain  satellite  navigation

中文摘要:

      为了满足多系统兼容、高集成度卫星定位终端对天线的需求,提出了一种宽带多网组合卫星导航终端天线。 天线采用宽带交叉偶极子结构实现全球卫星导航系统全频段(1 164 MHz ~ 1 278 MHz & 1 557 MHz~ 1 612 MHz)覆盖,采用平面倒 F 天线结构实现蓝牙/WLAN 频段(2 400 MHz~ 2 483. 5 MHz)覆盖,采用缺陷地单极子结构实现移动通信宽频(824 MHz~ 960 MHz & 1 710 MHz~2 690 MHz)覆盖,通过微带枝节匹配和去耦结构等手段实现多组天线的融合,天线整体尺寸为120 mm×120 mm×45 mm。 实测结果表明:天线电压驻波比优于目标带宽,方向图增益实测结果与仿真结果吻合。该天线具有频带宽、增益高、易调谐等优点,可较好地应用于全频段全网通测量型卫星定位终端设备中。

英文摘要:

      To satisfy the demand of satellite navigation terminal antenna for multisystem compatibility and highly integration application, a multi-network broadband integrated satellite positoning terminal antenna is proposed. The cross dipole antenna, planar inverted-F antenna and monopole antenna with defective ground are introduced to cover global navigation satellite system (GNSS) frequency band(1 164 MHz~ 1 278 MHz & 1 557 MHz~ 1 612 MHz), bluetooth /WLAN frequency band (2 400 MHz~ 2 483. 5 MHz) and mobile communication frequency band (824 MHz~ 960 MHz & 1 710 MHz ~ 2 690 MHz) respectively. Multi-antenna compatibility is achieved by means of microstrip branch matching and decoupling structures. The overall dimension of the proposed antenna is 120 mm×120 mm× 45 mm. The measured results indicate that the voltage standing wave ratio can completely cover the working frequency bands of the above-mentioned GNSS, bluetooth and mobile communication, and the measured gain results are in good agreement with the simulated results. The proposed antenna has wide frequency band, high gain and easy to tune, which can be better applied in the GNSS terminal equipment.