| 摘要 |
PROBLEM TO BE SOLVED: To achieve a further reduction in diameter, structural simplification and inexpensiveness without deteriorating performance as an omnidirectional antenna. SOLUTION: In order to approximate a horizontal direction distances of two dipole elements 20 as much as possible, the respective dipole elements are cross fed by a feedline conductor 40 and a grounded line conductor 50 running on a longitudinal axial line of a dielectric substrate 10-1 and unnecessary wave radiation from the respective dipole elements 20 are suppressed by first and second Sperrtop 30 which are provided in a configuration that they clamp the respective dipole elements 20 vertically. COPYRIGHT: (C)2007,JPO&INPIT
|
