Low-profile broadband multiple antenna

摘要

A low-profile broadband multiple antenna, comprises: a dipole arranged in the top part of said antenna, said dipole comprising at least one first top antenna element connected to the core of a multi-axial cable comprising a core and n sheaths and the bottom individual element of which is connected to the first sheath adjacent to the core, a connection device positioned between a top element of a dipole and the bottom element of said dipole the top element is connected to the sheath of index (k−1) of the multi-axial cable after the assembly comprising the core and the sheaths of index (1 to k−1) has been wound in Q turns around a magnetic core and the bottom element of the dipole is connected to the sheath of index k, and said connection device comprises at least one single-wire winding of P turns on the same magnetic core linking said bottom element of said dipole to the sheath of index (k−1), at the point corresponding to the start of the winding in order to provide the broadband impedance matching and the power supply for the dipole.

主权项

1. A low-profile broadband multiple antenna comprising at least two dipoles (Dk), each dipole k designated Dk consisting of a top antenna element Dks and a bottom antenna element Dkb, said antenna being powered by a coaxial cable comprising a core and n sheaths arranged concentrically around the core, with k varying from 1 to n, comprising:
a dipole D1 (k=1) arranged in the top part of said antenna, said dipole D1 comprising at least one first top antenna element D1s connected to the core of said multi-axial cable comprising n sheaths and the bottom individual element D1b of which is connected to the first sheath adjacent to the core, a connection device positioned between a top element Dks of a dipole Dk (k>1) and the bottom element Dkb of said dipole Dk, the top element Dks is connected at a point to the sheath of index (k−1) of the multi-axial cable after the assembly comprising the core and the sheaths of index (1 to k−1) has been wound in Q turns around a magnetic core and the bottom element Dkb of the dipole Dk is connected to the sheath of index k at the point, wherein said connection device comprises at least one single-wire winding of P turns arranged on the same magnetic core links, a bottom point of said bottom element Dkb of said dipole Dk to the sheath of index (k−1) at the point corresponding to the start of the winding in order to provide the broadband impedance matching and the power supply for the dipole Dk.