To provide a GPS antenna easy to solder and less affected by interference radio waves.

A shield case 8 of the GPS antenna has a flat plate shaped wall part 8a opposed to a circuit board 1 and the wall part 8a includes first and second holes 8c, 8d formed at an interval with each other. Since the first hole 8c is formed in opposition to a first soldering part H1 between a feeder pin 6 and a wiring pattern 2 and the second hole 8d is formed in opposition to a second soldering part H2 between a core wire 7a of a cable 7 and the wiring pattern 2, the first and second holes 8c, 8d formed in the wall part 8a are smaller in size than the conventional rectangular holes. Thus, the effect of interference radio waves is less caused and the GPS antenna can be obtained with excellent reception sensitivity.