Reflective array surface and reflective array antenna

摘要

The present invention provides a reflective array surface. The reflective array surface includes a functional board that is configured to perform beam modulation on an incident electromagnetic wave and a reflection layer that is disposed on one side of the functional board and is configured to reflect an electromagnetic wave, where the functional board includes two or more functional board units and the reflection layer includes reflection units, where the number of reflection units corresponds to the number of functional board units, where the functional board unit and a reflection unit corresponding to the functional board constitute a phase-shifting unit that is used for phase shifting. According to the reflective array surface in the present invention, a functional board unit and a reflection unit corresponding to the functional board unit constitute a phase-shifting unit that is used for phase shifting, which can solve a problem in the prior art that a phase-shifting effect is not exquisite enough and a beam modulation capability for an electromagnetic wave is poor, thereby affecting bandwidth and working performance of a reflective array antenna. In addition, the present invention further provides a reflective array antenna.

主权项

1. A reflective array surface, wherein the reflective array surface comprises a functional board that is configured to perform beam modulation on an incident electromagnetic wave and a reflection layer that is disposed on one side of the functional board and is configured to reflect an electromagnetic wave, wherein the functional board comprises two or more functional board units and the reflection layer comprises reflection units, wherein the number of reflection units corresponds to the number of functional board units, wherein the functional board unit and a reflection unit corresponding to the functional board unit constitute a phase-shifting unit that is used for phase shifting; the functional board unit comprises a substrate unit and an artificial structure unit that is disposed on one side of the substrate unit and is configured to generate an electromagnetic response to an incident electromagnetic wave, or the functional board unit is constituted by a substrate unit and a unit hole disposed on the substrate unit;
wherein the functional board comprises a substrate and an artificial structure layer that is disposed on one side of the substrate and has an electromagnetic response to an electromagnetic wave, wherein the reflection layer is disposed on the other side of the substrate; and at least one stress buffer layer is disposed between the substrate and the artificial structure layer and/or between the substrate and the reflection layer.