Antenna device with two dipole arrays and associated communication system
AssigneeTDE, Inc.
InventorsBelkacem Khadri, Sebastien Palud
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Abstract
The invention relates to an antenna device (102) comprising a low-frequency array (104) of low-frequency dipoles (112) having respective centres (112c) aligned on a so-called vertical axis (A1); a high-frequency array (106) of high-frequency dipoles (114) having respective centres (114c) following one another vertically; and a support (115) for the low-frequency dipoles (112) and the high-frequency dipoles (114). The device is characterised in that the high-frequency dipoles (114) are arranged so that the centre (112c) of each low-frequency dipole (112) is positioned vertically between the centres (114c) of a pair (P1; P2) of two high-frequency dipoles (114).
Claims17
An antenna device comprising:
- a low-frequency array of low-frequency dipoles having respective centers aligned on a so-called vertical axis;
- a high-frequency array of high-frequency dipoles having respective centers following one another vertically;
- and
- a support for the low-frequency dipoles and the high-frequency dipoles;
- wherein the high-frequency dipoles are arranged so that the center of each low-frequency dipole is positioned vertically between the centers of a pair of two high-frequency dipoles,
- wherein the support comprises a main support along which the low-frequency dipoles are arranged vertically, and an auxiliary support along which the high-frequency dipoles are arranged vertically, said auxiliary support being fixed to the main support,
- wherein the main support is a hollow, electrically conductive main mast, and
- wherein said device further comprises a coaxial line comprising at least one inner conductor electrically connecting the low-frequency dipoles to the same input/output connector of the low-frequency array, so that the main mast constitutes a return line to a common electrical ground.
Dependencies are inferred from the claim text.