Dual polarization antenna for a mobile communication base station, and multiband antenna system using same

摘要

The present invention relates to a dual polarization antenna comprising a reflection plate, and a radiating module including first to fourth radiating elements having respective first to fourth radiating arms having respective bent portions. The bent portions of the first to fourth radiation arms are sequentially adjacent to each other, and sequentially form and shaped structures. The and shaped structures are located on a third quadrant, a fourth quadrant, a second quadrant, and a first quadrant, respectively. The first to fourth radiating elements have supports integrally extending from the bent portions of the first to fourth radiating arms to the reflection plate. The radiating module includes a first feeder line installed to transmit signals to the first and third radiating arms, and a second feeder line installed to transmit signals to the second and fourth radiating arms.

主权项

1. A dual polarization antenna comprising:
a reflection plate; and a radiation module comprising first to fourth radiation devices comprising first to fourth radiation arms having bending parts, respectively, wherein the bending parts of the first to fourth radiation arms are sequentially adjacent to each other and are symmetrical to each other in four directions to form a shape when viewed from the top, the first to fourth radiation devices have supports integrally extending toward the reflection plate at the bending parts of the first to fourth radiation arms, and the radiation module comprises a first feeding line installed to transfer signals to the first and third radiation arms and a second feeding line installed to transfer signals to the second and fourth radiation arms, and wherein the first and second feeding lines are strip lines, the first feeding line transfers a signal through non-contact coupling with the first radiation arm, and the second feeding line transfers a signal through non-contact coupling with the second radiation arm.