Communications: radio wave antennas – Antennas – With vehicle
Patent
1997-02-28
1999-06-29
Wong, Don
Communications: radio wave antennas
Antennas
With vehicle
343DIG1, 343900, H01Q 132
Patent
active
059174528
ABSTRACT:
A rod-shaped vehicle antenna according to the present invention, includes a rod-shaped antenna element having small- and large-diameter portions arranged alternately at regular pitches along the longitudinal direction of a rod-shaped conductor. When the outside diameter of each of the small-diameter portions is D1, that of each of the large-diameter portions is D2, and the pitch (length of each of the small- and large-diameter portions) is P, P is set within the following range:
REFERENCES:
patent: 4513338 (1985-04-01), Goodall et al.
patent: 5151711 (1992-09-01), Taguchi
Harada Jiro
Kojima Hiroyoshi
Saito Shin-ichi
Shinkawa Masaki
Harada Industry Co. Ltd.
Phan Tho
White John P.
Wong Don
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