Mitsubishi Introduces the World's Smallest Antenna Prototype for Precise Satellite-based Positioning

Mitsubishi Introduces the World's Smallest Antenna Prototype for Precise Satellite-based Positioning

Mitsubishi Electric has announced that it has developed a prototype of the world's smallest antenna for high-precision satellite-based positioning in four frequency bands used by the world's main satellite-positioning systems and positioning-augmentation services. The highly compact antenna, which is expected to be installed in diverse vehicles and even drones, will accelerate high-precision satellite-based positioning for autonomous driving and many other applications.

Key Features of this Compact Antenna Module

Proprietary technology achieves world's smallest 4-band antenna for diverse vehicles

  • The antenna's two folded linear elements are wired three-dimensionally and symmetrically on each of four molded-resin layers, which are perpendicular to the module's horizontal surface. This unique design has resulted in the world's smallest four-band antenna for the high-precision satellite-based positioning of diverse autonomous vehicles, including drones and small tractors as well as automobiles.
  • The prototype's L1 bandwidth, which is about triple that of the company's existing model, is achieved with three-dimensional wiring and an antenna configuration optimized for space limitations. Also, the new antenna supports major positioning-satellite systems and positioning-augmentation worldwide.

A unique structure achieves multipath wave suppression for more precise positioning

  • Positioning precision is enhanced with the antenna's unique structure, which combines both straight and loop elements to reduce back lobe radiation, thereby suppressing multipath waves reflected from the ground.
  • Compactness and multipath wave suppression are achieved without increasing the antenna's size, unlike conventional multipath-wave suppression methods.

Antenna Specifications


New antennaCompany A'sCompany B'sCompany C's
Size (including case)Horizontal surface59 x 59 mm140 x 140 mm160 mm diameter76 mm diameter
Height33 mm62 mm60 mm35 mm

Future Development

Going forward, Mitsubishi Electric will research practical applications by evaluating the prototype's positioning precision in outdoor trials.

Click here to learn more about Mitsubishi Electric.

Publisher: everything RF
Tags:-  Antenna, Satellite