| 摘要 |
A microstrip antenna includes a rectangular dielectric substrate, a ground plate conductor formed on one surface of the dielectric substrate, a rectangular radiating conductor formed on the other surface of the dielectric substrate, a crossed slot formed in the radiating conductor and provided with two arms extended along orthogonal sides of the radiating conductor, the two arms having lengths different from each other, and at least one power-supply point formed on a diagonal line of the radiating conductor or an extension line of the diagonal line but different from a center of the radiating conductor. The length of at least one of the arms is equal to or more than a value obtained by subtracting a four times value of a thickness of the dielectric substrate from a length of a side of the radiating conductor along the arm. |
