Patent ID: 9160078
Filing Date: 2015-10-13
Classification: F41J,F42B,G01S,H01Q

Abstract:
1. A corner reflector to reflect a radio wave, comprising: a plurality of annular hollow balloons, each annular hollow balloon having flexibility and airtightness, and when gas is supplied therein, the annular hollow balloon expands with pressure of the gas to be an annular shape; and a radio wave reflection film having an outer edge part that is attached to the annular hollow balloon so that expansion of the annular hollow balloon makes the radio wave reflection film unfold over a plane of the annular shape, wherein wherein the plurality of annular hollow balloons comprises three annular hollow balloons provided so as to be mutually orthogonal after expansion, and binding members made of a material without a radio wave reflective property attached to outer faces of each annular hollow balloons, and wherein the binding members are disposed to prevent expansion of the annular hollow balloons beyond a limit volume, the limit volume being defined by a maximum diameter of each expanded annular hollow balloon.