Patent ID: 8633790

Claim:
A waveguide structure comprising: a base that has a mounting surface; a metal plate member that has elasticity, that is stacked on said mounting surface, and that functions together with said base to constitute a waveguide; a positioning mechanism that is constituted by: a positioning member that protrudes from one of said base and said plate member, wherein said positioning member is integrally formed with the mounting surface associated with said one of said base and said plate member; and an interfitting portion that is formed on the other one of said base and said plate member, and that is fitted together with said positioning member, said positioning mechanism positioning said plate member on said mounting surface of said base and also restricting movement along said mounting surface by fitting together of said positioning member and said interfitting portion; and a holder that holds said plate member in a state of close contact with said mounting surface by pressing said plate member so as to generate a reaction force in said plate member.