| 摘要 |
PURPOSE:To make the frequency characteristic of an input impedance wide band to sharpen directivity, by shaping the loop-form antenna conductor into a form where an approximately V-form main part and auxiliary parts making prescribed angles respectively in both sides of this main part are provided. CONSTITUTION:A loop-form antenna conductor is formed with approximately V- form main part 3 consisting of long sides 3a and 3b and auxiliary parts 4 and 5 which consist of long sides 4a, 4b, 5a and 5b and short sides 4c and 5c and extend in both sides of main part 3 in the approximately horizontal direction. By this constitution, directivity is sharp similarly to the loop-form antenna conductor consisting of only the approximately V-form main part conventionally and has the input impedance superior to that of the conventional loop-form antenna conductor. |
