| 摘要 |
PROBLEM TO BE SOLVED: To increase the receiving gain of an antenna with a simple constitution and to receive both vertically and horizontally polarized waves with high sensitivity by securing the electromagnetic resonances of a parasitic element and a strip dipole via the vertically and horizontally polarized antenna elements, respectively. SOLUTION: Every vertically polarized antenna element 40 is placed between a pair of microstrip lines 42 separated from each other to secure the electromagnetic resonance of a parasitic element 43, and plural elements 40 are sequentially connected together via a pair of lines 42. Every vertically polarized antenna element 41 is placed so as to set a strip dipole 57 orthogonally to a microstrip line 52 that is set linearly in the longitudinal direction of an antenna substrate 39, so that the electromagnetic resonance is secured for the line 52 and the dipole 57. Then plural elements 41 are sequentially connected together via a pair of lines 52.
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