Abstract: A device for generating and transmitting high-frequency (HF) waves which are generated by an HF generating unit and conducted through a hollow waveguide into a treatment chamber of an appliance to apply microwave energy to goods to be treated therein includes: a circuit board; and the hollow waveguide. The hollow waveguide includes a housing made of metal and at least two housing parts. The housing of the hollow waveguide is connected to the circuit board. The circuit board has mounted thereon a circuit arrangement for generating HF waves and that includes a power transistor and an HF conductor structure leading into the hollow waveguide. The HF conductor structure has an HF transition structure for converting a circuit board conductor mode to a hollow waveguide mode in order to introduce HF waves into the hollow waveguide. The circuit board carrying the HF transition structure is disposed between the housing parts.

Abstract: A sensor device for monitoring the environment of a vehicle includes at least two sensors, each with a signal generator, a transmitting antenna, and at least two receiving antennas, characterized in that at least one reference clock pulse generator for generating a common reference clock pulse for the signal generators of the at least two sensors is provided.

Abstract: A driver assistance system for a vehicle for monitoring cross-traffic includes a transmitting device for transmitting electromagnetic signals and operable for monitoring a kidney-shaped area in both a first monitoring direction and in a second monitoring direction and a receiving device for receiving electromagnetic signals.

Abstract: A radar device, in particular for a motor vehicle, which includes a housing having a first housing part that defines a receiving space (20) The housing also includes a second housing part, which is attached to the first housing part and forms a cover for at least the receiving space. Aa circuit board is accommodated within the housing, and the circuit board has at least one transmission antenna means for transmitting radar beams. The circuit board also has at least one receiving antenna means for receiving radar beams on a first surface which faces the second housing part when in the intended mounted position. The circuit board further includes electronic high frequency circuitry components and low frequency circuitry components on a second surface, as well as at least one shielding means inside the housing. The shielding means is configured for shielding against electromagnetic radiation.

Abstract: A driver assistance system for a vehicle for monitoring cross-traffic includes a transmitting device for transmitting electromagnetic signals and operable for monitoring a kidney-shaped area in both a first monitoring direction and in a second monitoring direction and a receiving device for receiving electromagnetic signals.

Abstract: A sensor device for monitoring the environment of a vehicle includes at least two sensors, each with a signal generator, a transmitting antenna, and at least two receiving antennas, characterized in that at least one reference clock pulse generator for generating a common reference clock pulse for the signal generators of the at least two sensors is provided.

Abstract: In order to be able to further develop a pulse radar apparatus (100) and method for acquiring, detecting, and/or evaluating at least one object so that data can be obtained not only about the distance to the object, but also with regard to the angular position of the object to be detected, the invention has proposed that the receiving antenna unit (30) of the pulse radar apparatus (100) be embodied as a group antenna that has at least two antenna elements (32, 34, 36, 38) and is designed to receive the signals reflected against the object as vectorial signals and that the reception branch (50) of the pulse radar apparatus (100) be followed by at least one receiving circuit (70), in particular an LF (low-frequency) receiving circuit, for evaluating and processing the received vectorial signals so that it is also possible to measure and determine the angular position of the at least one object.

Abstract: A vehicle navigational receiver module includes a first planar antenna for receiving navigational radio signals, a signal processing circuit that is connected to the antenna, as well as a ground plane. In addition, a second planar antenna for receiving a telematic radio signal is arranged so as to at least partially overlap the first planar antenna and is connected to a second signal processing circuit.

Abstract: A spiral antenna which can be supplied in different modes with different transmission characteristics is described. The spiral antenna includes four approximately parallel, electrically conducting spiral arms. The spiral arms are each connected to a coplanar conductor at their inner spiral arm ends for supplying and/or receiving signals.

Abstract: A vehicle navigational receiver module includes a first planar antenna for receiving navigational radio signals, a signal processing circuit that is connected to the antenna, as well as a ground plane. In addition, a second planar antenna for receiving a telematic radio signal is arranged so as to at least partially overlap the first planar antenna and is connected to a second signal processing circuit.

Abstract: An integrated waveguide component has at least one planar microwave conductor with at least one interruption point, a mechanically shiftable microwave conductor segment provided for each of the interruption points, a substrate plate above which the microwave conductor is disposed, a further substrate plate above which the microwave conductor segment is disposed, so that the microwave conductor segment is shiftable parallel to the substrate plate by displacement of the further substrate plate to establish or adjust an effective length, spanning the interruption point of the microwave conductor segment in accordance with the desired phased shift between an input signal are the output signal, the microwave conductor segment being disposed on a side remote from the microwave conductor of the further substrate plate, so that the further substrate plate performs not only a carrier function for the microwave conductor segment but simultaneously a function of a dielectric for an inductive and/or capacitive coupling o

Abstract: A method of calibrating a group antenna with minimal effort includes sending a respective calibrating signal over corresponding transmitting branches (TX1, TX2, . . . , TXm) one after the other; detecting superimposed signal components coupled into respective individual antenna elements (A1, A2, . . . , Am) of the group antenna for each calibrating signal sent over the transmitting branches in the receiving branches (RX1, RX2, . . . , RXm) belonging to the respective individual antenna elements; deriving amplitude and phase variations of transmission functions of all transmitting branches (TX1, TX2, . . . , TXm) or receiving branches (RX1, RX2, . . . , RXm) relative to a transmission function of a reference transmitting or receiving branch from received signals including the superimposed signal components detected in the corresponding receiving branches (RX1, RX2, . . . , RXm) for all calibrating signals; and adjusting amplitude adjusting elements (ATX1, ATX2, . . .

Abstract: A planar microwave antenna for receiving radio and television satellite signals, in which the antenna is associated with a main beam direction that is freely adjustable regardless of the position of the main plane of the antenna. The antenna is rotatable about its vertical axis, which is perpendicular to the main plane, and the main beam direction is adjustable in a plane running perpendicular to the main plane by adjusting phase shifting elements acting on the individual signals in the form of essentially U-shaped draw-out lines. The antenna may be a two-shell design, in which each of the two shells have individual antenna elements that are directed in different main mutually perpendicular directions. A decoupling element, which may include a round, hollow-cored conductor, may be mounted so that it is rotatable relative to the main plane of the antenna so that any linear polarization direction can be set.

Abstract: A method and apparatus for calibrating transmission and reception paths of a group antenna with an adaptive radiation pattern is provided, in which one transmission signal after the other is transmitted over each transmission path (DA1, . . . ,DAN; Tx1, . . . ,TxN; DP1, . . . ,DPN), a signal portion is decoupled from each transmission signal and the decoupled portion of at least one transmission signal is divided into as many equal parts of equal strength and equal phase as reception paths present. These equal parts of the decoupled transmission signal portion are coupled into the respective reception paths and the strengths and phases of the equal parts transmitted over the respective reception paths (DP1, . . . ,DPN; Rx1, . . . ,RxN; AD1, . . . ,ADN) are measured. The transmission factors of all other ones transmission paths and reception paths are determined from known transmission factor values for them and the measured strengths and phases of the equal parts of the at least one transmission path.