摘要:
The present invention relates to an active photonic band gap antenna. In this case, the photonic band gap structure is constituted by metal rods, some of which are discontinuous, namely composed of sections of rods connected by a switching element such as a PIN diode. According to the invention, only one rod in a row of rods seen from the radiating source is discontinuous. The antenna pattern can be controlled at a low cost.
摘要:
The present invention relates to a device for the reception and/or the transmission of multibeam signals of the type comprising: a set of several means of receiving and/or transmitting waves with longitudinal radiation of the slot printed antenna type, the said means being disposed so as to receive an azimuthally wide sector, means able to connect in reception one of the said receiving and/or transmitting means to means for utilizing the multibeam signals. This device moreover comprises means able to connect in transmission the set of the said receiving and/or transmitting means to the said means for utilizing the multibeam signals. The invention applies more particularly to the field of wireless transmissions.
摘要:
The present invention relates to a multiple-port dual-band antenna system and the associated interface formed by DPDT or SPDT switches, that can be integrated on one and the same multi-layer structure.
摘要:
The present invention relates to a multiple-port dual-band antenna system and the associated interface formed by DPDT or SPDT switches, that can be integrated on one and the same multi-layer structure.
摘要:
The present invention relates to photonic band gap antennas. This antenna comprises according to a plane of directions x, y, a radiating source and a photonic band gap structure constituted by parallel metal rods, the rods repeating themselves nx times in the direction x and ny times in the direction y. The height of the rods seen from the radiating source is increasing. The invention is able to control the radiation pattern of the antenna in the vertical plane.
摘要:
The present invention relates to a microwave device of the slot-line type with a photonic band gap structure, comprising at least: a first substrate in a dielectric material having a first permittivity εr1, a second substrate in a dielectric material having a second permittivity εr2, and between the two substrates, a conductive layer in which at least one slot-line is engraved, with, on the face of the first and second substrates opposite the face in contact with the conductive layer, facing the slot-line, periodic metal patterns. The invention enables a compact filtering structure to be realized.
摘要:
The present invention relates to a device for the reception and/or the transmission of electromagnetic signals comprising at least one means of reception and/or of transmission of electromagnetic signals, consisting of an antenna of the slot type (12) and a feed line (13) coupled electromagnetically with the slot of the antenna so as to connect the means of reception and/or of transmission of electromagnetic signals to means of utilization of the signals, the feed line being coupled electromagnetically with the slot at two points (A1, A2) chosen such that the electromagnetic waves exhibit a circular polarization
摘要翻译:本发明涉及一种用于接收和/或传输电磁信号的装置,包括至少一种电磁信号的接收和/或传输装置,包括槽型(12)的天线和馈线( 13)与天线的槽电磁耦合,以将电磁信号的接收和/或传输装置连接到利用信号的装置,馈电线在两点(A 1, A 2),使得电磁波呈现圆偏振
摘要:
The present invention relates to a device for receiving and/or transmitting electromagnetic waves with radiation diversity. This device comprises, on a common substrate, at least one antenna of the slot type formed by a closed curve, known as a slot antenna, electromagnetically coupled to a first supply line, and an antenna radiating parallel to the substrate, positioned inside the slot antenna and connected to a second supply line, said first and second supply lines being connected via a switching means to means for exploiting the electromagnetic waves. The device can be applied, in particular, in the field of wireless transmissions.
摘要:
The invention relates to a method of producing a photonic bandgap structure on a slot-type microwave device which is produced on a metallized substrate. According to the invention, periodically-spaced patterns are formed on the surface of the aforementioned substrate opposite the surface comprising the slot. The invention is suitable for slot-type antennas.
摘要:
The present invention relates to a device for the reception and/or the transmission of electromagnetic signals comprising at least one means of reception and/or of transmission of electromagnetic signals, consisting of an antenna of the slot type and a feed line coupled electromagnetically with the slot of the antenna so as to connect the means of reception and/or of transmission of electromagnetic signals to means of utilization of the signals, the feed line being coupled electromagnetically with the slot at two points chosen such that the electromagnetic waves exhibit a circular polarization