Antenna device and antenna apparatus

摘要

An antenna device includes a retaining seat, a first polarized antenna module, and a second polarized antenna module, both disposed on the retaining seat. The first polarized antenna module has a dual-band monopole antenna. The second polarized antenna module has a carrying frame disposed on the retaining seat, two dual-band dipole antennas in a coplanar arrangement formed on the carrying frame, and a splitter installed on the carrying frame. Each dual-band dipole antenna defines a longitudinal axis and has a feeding and a grounding segment arranged in the longitudinal axis. The longitudinal axes of the dual-band dipole antennas are perpendicular to each other. The polarized direction of the dual-band dipole antennas is perpendicular to the polarized direction of the dual-band monopole antenna. The splitter is electrically connected to the feeding segments for separating a current respectively into the feeding segments by a phase difference of 90 degrees.

主权项

1. An antenna apparatus, comprising:
a transportation device having an elongated shape and defining a longitudinal direction; an antenna device, comprising:
a retaining seat mounted on the transportation device;a first polarized antenna module disposed on the retaining seat, wherein the first polarized antenna module has a dual-band monopole antenna arranged in a first plane approximately perpendicular to the longitudinal direction; anda second polarized antenna module, comprising:
a carrying frame disposed on the retaining seat;two dual-band dipole antennas formed on the carrying frame and arranged in a second plane, wherein each dual-band dipole antenna defines a longitudinal axis, each dual-band dipole antenna has a feeding segment and a grounding segment arranged apart from the feeding segment, and the feeding segment and the grounding segment of each dual-band dipole antenna are arranged along the corresponding longitudinal axis,wherein the longitudinal axes of the dual-band dipole antennas are substantially perpendicular to each other, the second plane is approximately perpendicular to the first plane, a polarized direction of the dual-band dipole antennas is approximately perpendicular to a polarized direction of the dual-band monopole antenna; anda splitter mounted on the carrying frame and electrically connected to the feeding segments, wherein the splitter is configured for separating a current respectively into the feeding segments by a phase difference of 90 degrees.