Fixing device for fixing an object to a fixing plate and antenna apparatus using the fixing device

A fixing device for fixing an object to a fixing plate via a fixing portion of the object and a fixing member, the fixing device comprising:

• a first screw member provided on the object;
• and
• a second screw member corresponding to the first screw member;
• wherein the fixing member comprises:
• a bottom plate portion which has a through hole that allows a threaded portion of the second screw member to pass therethrough, and which has an outer dimension that is smaller than a fixing hole formed in the fixing plate;
• and
• a plurality of spring portions extending from the bottom plate portion in one direction;
• wherein a combination of the spring portions extending in the one direction from the bottom plate portion has an outer dimension that is greater, at least at an upper part thereof, than the fixing hole;
• and
• wherein each of the spring portions comprises lateral sides that include cut-away portions formed by cutting the lateral sides in the one direction away from the bottom plate portion;
• and
• wherein the fixing portion and the fixing member are insertable into the fixing hole when the fixing member is coupled to the fixing portion, and the object is clamped and fixed by the fixing plate and the fixing member by screw engagement between the first and the second screw members.