Abstract: A connection device for high frequency signals is disclosed. The connection device includes a printed circuit having an external face and a transmission line printed on the external face, and a coaxial connector surface mounted on the external face of the printed circuit. The transmission line is connected to the connector by means of a bump contact belonging to the transmission line. A central core of the connector is connected to the bump contact. The printed circuit has at least one internal ground plane disposed parallel to the external face and contributing to the matching of the transmission line. The internal ground plane defines a perforation therethrough that faces the bump contact.

Abstract: The invention relates to a broadband antenna, including: a floorplan (PM); at least one assembly including: a layer (P) of a dielectric material arranged perpendicularly to the floorplan (PM), the layer having a given thickness; a first metal member (11) arranged on a surface of the layer (P); a second metal member (12) arranged on a surface of the layer (P) opposite the surface receiving the first metal member such that the metal members are not opposite each other; a power line combined with one of the two metal members, the power line extending from the edge of the metal member closest to a central axis of symmetry (?) of the antenna towards the floorplan (PM).

Abstract: The present invention relates to a planar antenna structure comprising at least one radiating element constituted by a longitudinal radiation slot etched onto a substrate. This structure comprises at least one modification element of the radiation pattern positioned in the radiation zone of the radiating element.

Abstract: The invention relates to a wide-band omnidirectional antenna including at least a first conducting member and a second conducting member having a revolution symmetry about a common revolution axis and central openings, said members being arranged opposite each other, at least one member having a progressively flaring area, characterised in that it comprises a gap between the conducting members and a central coaxial excitation line so as to achieve a three-dimensional contactless transition between the coaxial excitation line and the conducting members and members for modifying the radiation pattern in the flaring area of the diode type for selectively radiating the gap depending on the on- or off-state of said diodes.

Abstract: The invention relates to an electronic switching device for high-frequency signals. The invention is of particular use in the connection between a microwave frequency antenna and an electronic circuit. This circuit comprises one or two access points designed to be connected to the antenna forming a third access point. In the case of a switch between one access point and the antenna (called an SPST switch), it comprises two switching diodes, one, called a serial diode, being connected in series between the access points and the other, called a shunt diode, between one of the access points and an earth of the device.

Abstract: The disclosure relates to a planar antenna comprising at least one radiator element separated from a ground plane by a dielectric. The antenna also comprises an assembly of conductive studs which is connected to and extends from at least one element of a group of elements comprising the ground plane and at least one radiator element in such a way that at least one physical dimension of said at least one radiator element for a determined resonance frequency is reduced.

Abstract: A connection device for high frequency signals includes a printed circuit on one external face of which is printed a transmission line and a coaxial connector surface mounted on the printed circuit on the external face. The invention is of particular use for the transmission of radiofrequency signals in the X band, in particular for frequencies from 9 to 10 GHz. The transmission line is connected to the connector by means of a bump contact belonging to the transmission line to which is attached a central core of the connector. The printed circuit comprises at least one internal ground plane parallel to the external face and contributing to the matching of the transmission line. The invention aims to improve the transparency of the transition between the connector and the transmission line. According to the invention, the internal ground plane is perforated by means of a resist facing the bump contact.

Abstract: The invention relates to a printed circuit for high-frequency signals, and more particularly to interconnect means between transmission lines situated on different faces of the printed circuit. According to the invention, in the vicinity of the interconnect means, the transmission lines each extend in a main direction. The interconnect means comprise two vias each extending along an axis. In a plane containing the main direction of a first of the transmission lines and perpendicular to the face bearing the first transmission line, an orthogonal fix is formed whose abscissa is borne by the main direction of the first transmission line. The abscissae of the axes of the vias or of their projection on the plane, perpendicularly to the plane, are separate.

Abstract: An ultra-wideband antenna includes a zone, an excitation means, and an adapting means. The zone is defined between first and second shaped surfaces such as to form a radiating element. The first and second shaped surfaces are also rotationally symmetrical in relation to a longitudinal axis of the antenna, and are disposed opposite one another in respect of a plane that is orthogonal to the longitudinal axis and that contains a horizontal axis. The first and second shaped surfaces are configured to control the characteristics of an electromagnetic field in the zone such that the antenna has an essentially-constant gain in the frequency band along an azimuth plane. The excitation means is configured to supply a signal in a localized manner in a central region of the zone. The adapting means is configured to promote a localized coupling between the excitation means and the zone.

Abstract: The invention concerns a method for making a waveguide microwave antenna with corrugated horn, which consists in forming the corrugations of the horn on the outer surface of a synthetic material form block followed by surface metallization of the foam block configured to produce the antenna.

Abstract: The present invention relates to an interconnection system of a first substrate (1) comprising at least one first transmission line (3) with a second substrate (10) comprising at least one second transmission line (11), the orientation of the first substrate with respect to the second substrate being arbitrary. The first substrate (1) comprises at least one metallized hole at one extremity of said first line and the second substrate (10) comprises a projecting element extending said second line and a ground saving, said projecting element being inserted into the metallized hole. The invention notably applies in the domain of microwaves and can interconnect a substrate comprising a printed antenna with a substrate receiving the processing circuits of the signal.

Abstract: 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.

Abstract: The invention relates to a transmission/reception antenna having one or more given operating frequencies, comprising: at least one metallic member (2) provided or to be provided opposite a mass plane (3) for providing a capacitive function; and an inductive member (5); characterised in that the metallic member (2) and the inductive member (5) have general dimensions lower than ?/10, where ? is the operational wavelength, the metallic member (2) and the inductive member (5) defining together a resonator circuit at a frequency corresponding to the operational wavelength, and the metallic member (2) comprising discontinuities which represent the origin of radiation loss during operation.

Abstract: The invention relates to an omni-directional ultra-wide band antenna including at least two metallic members (14, 15, 16) provided opposite an earth plane (11) and distributed about a symmetry axis (AA) perpendicular to the earth plane (11) and at the centre of the antenna, characterised in that the metallic members (14-16) each have a narrow quasi punctual geometry at their base that flares along the symmetry axis (BB) of said metallic members (14-16) in the direction of the upper end thereof, and in that said metallic members (14-16) are oriented in a direction extending from a common point (18) of said metallic members and opposite the earth plane (11).

Abstract: The invention relates to an electronic switching device for high-frequency signals. The invention is of particular use in the connection between a microwave frequency antenna and an electronic circuit. This circuit comprises one or two access points designed to be connected to the antenna forming a third access point. In the case of a switch between one access point and the antenna (called an SPST switch), it comprises two switching diodes, one, called a serial diode, being connected in series between the access points and the other, called a shunt diode, between one of the access points and an earth of the device.

Abstract: The present invention relates to a multi-sector antenna comprising N (N>1) planar antennas each constituted of a longitudinal radiation slot etched on a first substrate provided with a ground plane and supplied by an excitation line. The N first substrates are fixed on a second common substrate so that the radiation axis of each antenna is parallel to said second substrate, the N first substrates being interconnected around an axis perpendicular to the second substrate. The invention can be applied to high definition wireless cameras.

Abstract: The present invention relates to a planar antenna structure comprising at least one radiating element constituted by a longitudinal radiation slot etched onto a substrate. This structure comprises at least one modification element of the radiation pattern positioned in the radiation zone of the radiating element.

Abstract: An ultra-wideband antenna includes a zone, an excitation means, and an adapting means. The zone is defined between first and second shaped surfaces such as to form a radiating element. The first and second shaped surfaces are also rotationally symmetrical in relation to a longitudinal axis of the antenna, and are disposed opposite one another in respect of a plane that is orthogonal to the longitudinal axis and that contains a horizontal axis. The first and second shaped surfaces are configured to control the characteristics of an electromagnetic field in the zone such that the antenna has an essentially-constant gain in the frequency band along an azimuth plane. The excitation means is configured to supply a signal in a localised manner in a central region of the zone. The adapting means is configured to promote a localised coupling between the excitation means and the zone.

Abstract: The present invention relates to an interconnection system of a first substrate (1) comprising at least one first transmission line (3) with a second substrate (10) comprising at least one second transmission line (11), the orientation of the first substrate with respect to the second substrate being arbitrary. The first substrate (1) comprises at least one metallized hole at one extremity of said first line and the second substrate (10) comprises a projecting element extending said second line and a ground saving, said projecting element being inserted into the metallized hole. The invention notably applies in the domain of microwaves and can interconnect a substrate comprising a printed antenna with a substrate receiving the processing circuits of the signal.

Abstract: 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.