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US 2004/0201529 A1Published application
Antenna
AssigneeCocomo Mb Cojmmunications, Inc.
InventorGeorge G. Chadwick
Life of this patent
Estimating the term…
Abstract
An antenna system, particularly for vehicles. A discone-type antenna is preferably utilized for frequencies outside the vehicle. At various frequencies, either or both the antenna and the vehicle serve as exciters.
Claims47
A discone-type of antenna comprising:
- a disc;
- a cone comprising an apex and a base comprising a diameter, said disc positioned at said apex of said cone;
- and
- a coaxial cable disposed in an interior of said cone from said apex through said cone and extending outwardly beyond said cone.
1 more element
An exciter system for a vehicle comprising:
- an antenna disposed on or in a vehicle;
- said exciter system radiating exterior to the vehicle;
- said exciter system operating in at least three modes;
- and
- said three modes comprising:
- said antenna radiating at a higher frequency;
- the vehicle radiating at a lower frequency;
- and
- both said antenna and the vehicle radiating at a transition frequency between said lower frequency and said higher frequency.
6 more elements
A method of excitation for sending and receiving various frequencies to and from a vehicle, the method comprising the steps of:
- disposing an antenna on or in a vehicle;
- exciting the antenna at higher frequencies that radiate outside of the vehicle;
- exciting the vehicle at lower frequencies that radiate outside the vehicle;
- and
- exciting both the antenna and the vehicle at transition frequencies that radiate outside the vehicle.
2 more elements
An communication system for a vehicle comprising:
- an antenna disposed on or in a vehicle;
- an exciter system radiating exterior to the vehicle;
- said exciter system operating in at least three modes;
- and
- said three modes comprising:
- said antenna radiating at a higher frequency;
- the vehicle radiating at a lower frequency;
- and
- both said antenna and the vehicle radiating at a transition frequency between said lower frequency and said higher frequency.
6 more elements
Dependencies are inferred from the claim text.