Communications: radio wave antennas – Antennas – Active sleeve surrounds feed line
Patent
1985-09-11
1988-03-29
Nussbaum, Marvin L.
Communications: radio wave antennas
Antennas
Active sleeve surrounds feed line
343715, 343750, 343853, 343905, H01Q 500, H01Q 2128
Patent
active
047347031
ABSTRACT:
A three-wave common antenna for AM/FM and ultra high frequency waves combined in a single unit and mounted on vehicles including AM/FM antenna element mounted on a vehicle body at its base, a non-grounded type ultra high frequency antenna element disposed on top of the AM/FM antenna element such that the beam in a vertical plane thereof is close to the horizontal direction, a coaxial feeder cable for ultra high frequency which, along the AM/FM antenna element, is led into a vehicle body with one end thereof connected to the ultra high frequency antenna element, a characteristic compensating circuit connected to the AM/FM antenna element, and a feeder cable for AM/FM waves connected to the characteristic compensating circuit.
REFERENCES:
patent: 2002844 (1935-05-01), Aceves et al.
patent: 2888555 (1959-05-01), Stover
patent: 4149169 (1979-04-01), Weber
Egashira Yoshima
Nakase Kazuhiko
Harada Kogyo Kabushiki Kaisha
Nussbaum Marvin L.
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