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US 12,374,800 B2Granted
Ruggedized rapid tuning frequency adjustable mobile HF antenna with re-entrant capacitive hat
OwnerCharles M Gyenesinventor
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Abstract
A communication antenna comprises an electrically conductive base assembly at a lower section of the antenna; a loading coil assembly, at a midsection of the antenna, and electrically connected to the base assembly; and a re-entrant capacitive hat assembly, at an upper section of the antenna, and electrically connected to the loading coil assembly, wherein the re-entrant capacitive hat assembly includes: a hat housing and a support tube longitudinally extending through the hat housing a domed shaped endcap and an insulative bushing.
Claims9
A communication antenna, comprising:
- a base assembly at a lower section of the antenna;
- a rapid tuning module within the lower section of the antenna and electrically connected to the base assembly;
- a variable inductance loading coil assembly, at a midsection of the antenna, and electrically connected to the base assembly;
- a re-entrant capacitive hat assembly electrically connected to the variable inductance loading coil assembly, wherein the re-entrant capacitive hat assembly includes:
- a hat housing;
- a support tube longitudinally extending through the hat housing;
- a domed end cap configured to hold, at an end thereof, a whip extension;
- and
- a non-electrically conductive spacer insulating the hat housing from the variable inductance loading coil assembly while the support tube is electrically coupled to the variable inductance loading coil assembly.
6 more elements
Dependencies are inferred from the claim text.