| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microstrip antenna (MSA) sharing many frequencies, which is capable of sharing a large number of frequencies and arbitrarily setting the frequencies. <P>SOLUTION: The MSA includes a planar radiating element 22 having a rhombic external shape, and an L probe 24 which is placed in the vicinity of one end part of a diagonal line connecting acute angles of this rhombus and supplies power by electromagnetic coupling with the radiating element 22. The radiating element 22 is provided with one or more V-shaped slits 31, 32, 33 opened toward the L probe. In the MSA, a plurality of current paths having different resonance frequencies are formed from the V-shaped slits 31, 32, and 33 to show multiple frequency sharing characteristics. The MSA sharing many frequencies is capable of sharing a large number of frequencies and arbitrarily setting the frequencies. <P>COPYRIGHT: (C)2007,JPO&INPIT |
