| 摘要 |
IN AN ANTENNA FOR USE IN A MOBILE COMMUNICATION APPARATUS AND HAVING A HELICAL ANTENNA ELEMENT (40) OF A HELICAL SHAPE, THE HELICAL ANTENNA ELEMENT (40) IS MOUNTED ON A FLEXIBLE SUBSTRATE (1) ROUNDED TO FORM A CYLINDRICAL SHAPE. THE HELICAL ANTENNA ELEMENT (40) HAS A PLURALITY OF OBLIQUE CONDUCTIVE PATTERNS (4) EXTENDING ALONG THE FLEXIBLE SUBSTRATE AND ELECTRICALLY CONNECTED TO ONE ANOTHER AT THEIR TERMINAL ENDS TO FORM THE HELICAL SHAPE. THE OBLIQUE CONDUCTIVE PATTERNS (4) HAVE A SIMILAR PITCH THEREBETWEEN.FIGURE 6
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