Patent ID: 7132991

Claim:
A miniature planar notch antenna implemented on a circuit board for sending and receiving wireless signals in a microwave band, comprising: a notch antenna positioned on a ground side of said circuit board having a linear shape without crossing itself and having a first length and a first width, said notch antenna being bended at least twice; a metallic stub positioned on the other side of said circuit board opposite to said ground side having a linear shape without crossing itself and having a second length and a second width, said metallic stub passing astride said notch antenna at a first location of said notch antenna; and a microstrip feed line positioned on the same side of said circuit board as said metallic stub having a linear shape without crossing itself and having a third length and a third width, said microstrip feed line bended at least once for an appropriate angle, said microstrip feed line positioned at a side to said metallic stub with an appropriate distance therebetween without intersecting said metallic stub, said microstrip feed line passing astride said notch antenna at a second location of said notch antenna.