Patent ID: 11959952
Assignee: BEIJING ORIENT INSTITUTE OF MEASUREMENT AND TEST
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G  H

Claim 1:
2. The anechoic chamber constructed by the construction method of the anechoic chamber as claimed in claim 1, comprising:
the top surface, being a regular polygon;
the trapezoid surfaces, corresponding to the edges of the top surface, respectively, wherein a length of an upper edge of each of the trapezoid surfaces is equal to a length of the corresponding edge of the top surface, each of the trapezoid surfaces is connected to the corresponding edge of the top surface through the upper edge of the trapezoid surface, the trapezoid surfaces are sequentially connected along a circumferential direction of the top surface, and each of the trapezoidal surfaces is at an angle to the top surface;
the rectangular surfaces, corresponding to the trapezoid surfaces, respectively, wherein a length of an upper edge of each of the rectangular surfaces is equal to a length of a lower edge of the corresponding trapezoid surface, each of the rectangular surfaces is connected to the lower edge of the corresponding trapezoid surface through the upper edge of the rectangular surface, the rectangular surfaces are sequentially connected along a circumferential direction of the lower edges of the trapezoid surfaces, and each of the rectangular surfaces is perpendicular to the top surface; and
an absorbing material, disposed on the top surface, the trapezoid surfaces and the rectangular surfaces.