Antenna and antenna device

An antenna comprising:

• a first radiating conductor having a first open end and a first feed point;
• a second radiating conductor having a second open end and a second feed point, the second radiating conductor being disposed such that the second open end is opposite to the first open end;
• a planar ground conductor that overlaps with the first radiating conductor and the second radiating conductor in plan view;
• a shielding ground conductor disposed between the first open end and the second open end in plan view;
• an end portion ground conductor connected to the first radiating conductor and the second radiating conductor in plan view;
• and
• a feed line having a first path extending from a common power input to the first feed point and a second path extending from the common power input to the second feed point, wherein the first path and the second path have different electrical lengths.