摘要:
The present invention relates to a printed slot-type directional antenna. The invention also relates to antenna systems formed by arranging a plurality of such antennas in an array. The flared printed slot-type directional antenna includes a substrate having a floorplan, in which the slot is etched along a profile having a longitudinal axis, and a line for supplying power to the slot, and is characterized in that the substrate comprises at least one first and one second portion which are folded along an axis that is parallel to said longitudinal axis, and which form an angle A relative to one another.
摘要:
The invention relates to a source antenna constituted by a radiating aperture comprising at least one insert made of a dielectric material mounted floating inside the aperture.
摘要:
The present invention relates to a system of multi-beam antennas comprising M radiating sources and P networks of N radiating elements, P being greater than 1 and N being an even whole number, the network elements being connected two by two via transmission lines of the same electrical length. In addition, the P networks are co-located at the centre of each network, the M radiating sources are each positioned at a distance Li from said centre, the distance Li being strictly less than the distance of the field called the far field and i varying from 1 to M.This system can be used with MIMO type devices.
摘要:
The present invention relates to an element of transition between a waveguide and a transition line on a substrate. The element of transition comprises a securing flange on the substrate, the flange being dimensioned so that at least, in the direction microstrip line, the width d of the flange is selected in such a manner as to shift the resonant modes away from the useful band. The invention is used particularly for circuits using SMD techniques at millimeter frequencies.
摘要:
The present invention relates to a slot type antenna with integrated amplifiers, comprising a substrate S featuring a ground plane G, a longitudinal radiation open slot antenna, a power divider connected to a feeder line, an amplifier connected to each of the outputs of the power divider, such that the amplifiers are supplied in phase opposition, the output of the amplifiers being connected to a power combination circuit directly coupled to the excitation point of the slot type antenna.
摘要:
The present invention relates to an element of transition between a waveguide and a transition line on a substrate. The element of transition comprises a securing flange on the substrate, the flange being dimensioned so that at least, in the direction microstrip line, the width d of the flange is selected in such a manner as to shift the resonant modes away from the useful band. The invention is used particularly for circuits using SMD techniques at millimeter frequencies.
摘要:
A multibeam antenna system having a substrate forming a ground plane and a lens positioned on the substrate. At least one radiating element is positioned around the lens and configured to transmit and/or receive electromagnetic wave. A switching means enables one of the at least one radiating element to be selected. The lens is constituted by a cylindrical ring whose axis is perpendicular to the substrate.
摘要:
The present invention relates to a multibeam antenna system comprising: a substrate forming a ground plane, a lens positioned on the substrate, at least one radiating element to transmit and/or receive electromagnetic waves positioned around the lens, and a switching means enabling the or at least one of the radiating elements to be selected, the lens being constituted by a cylindrical ring whose axis is perpendicular to the substrate. The invention notably applies in multistandard terminals.
摘要:
The invention proposes an antenna operating in two frequency bands and having two separate ports. The invention is a printed antenna with slot produced on a ground plane. Said antenna consisting of a slot 1, said antenna having a first port produced by a first microstrip line 2, the coupling between the first line 2 and the slot 1 being produced at a first distance L1 from a closed end of the slot, and a second port produced by a second microstrip line 4, the coupling between the second line 4 and the slot 1 being produced at a second distance L2 from the closed end of the slot. The invention also pertains to a system of antennas which comprises at least two twin-port antennas.
摘要:
The present invention relates to a slot type antenna with integrated amplifiers, comprising a substrate S featuring a ground plane G, a longitudinal radiation open slot antenna, a power divider connected to a feeder line, an amplifier connected to each of the outputs of the power divider, such that the amplifiers are supplied in phase opposition, the output of the amplifiers being connected to a power combination circuit directly coupled to the excitation point of the slot type antenna.