Krauns, Christian

An electronic device includes a first circuit board, a first shielding cover and a first solder. The first circuit board has a first surface, a second surface and a first edge. The first and second surfaces are on opposite sides. The first edge is on one side of the circuit board. The first shielding cover is disposed on the first surface and covers a first region of the first circuit board. The first shielding cover includes a first main body and first and second shielding elements. The first shielding element is connected between the first main body and the second shielding element and parallel to the first surface. The second shielding element is parallel to the first edge and perpendicular to the first surface. The first solder is located between the first main body and the first region to connect the first shielding cover to the first circuit board.

A method for processing a physiological signal is provided. The method includes the following steps. A standard physiological signal as a first template to perform a first match filtering on an original physiological signal of a subject under test is used, thereby obtaining a first filtered physiological signal. A correlation evaluation on the first filtered physiological signal is performed and based on an evaluation result, whether interference has been sufficiently eliminated is determined. When determining that the interference has not been sufficiently eliminated, a personal physiological signal of the subject under test is used as a second template to perform a second match filtering on the first filtered physiological signal, thereby obtaining a second filtered physiological signal. A physiological parameter of the subject under test based on the second filtered physiological signal is generated.

The application discloses a radar antenna device and a radar element thereof. The radar antenna device, configured for installation on a side surface of a vehicle, comprises: a base having a surface; a first antenna circuit board disposed on the surface; and a second antenna circuit board disposed on the surface. Wherein a first angle is formed between the first antenna circuit board and the side surface of the vehicle, and a second angle is formed between the second antenna circuit board and the side surface of the vehicle, and both the first angle and the second angle are greater than or equal to 15 degrees and less than or equal to 25 degrees.

An antenna device operating at a center frequency, includes a substrate and a conductive layer. The substrate has a first plane. The conductive layer is disposed on the first plane of the substrate. The conductive layer has a printed pattern including a radiating element and a matching element. The radiating element has several tortuous portions arranged along a first direction. Adjacent two of the tortuous portions are substantially parallel with and electrically coupled to each other. The matching element has several protruding portions arranged along the first direction. Adjacent two of the protruding portions are substantially parallel with and electrically isolated from each other. Each of the protruding portions of the matching element is sandwiched between adjacent two of the tortuous portions of the radiating element along a second direction, and the second direction is not parallel with the first direction.

A radar calibration device for calibrating a radar system installed on a vehicle, is provided by the present disclosure. The radar system comprises a radar module and a radar control unit configured to receive a first signal output by the vehicle. The radar calibration device comprises a memory storing a configuration software. The radar calibration device also comprises a signal calibration unit providing information. The radar calibration device also comprises a processor coupled to the memory, the signal calibration unit and the radar control unit and configured to executing the configuration software. The processor calibrates the first signal to a second signal based on the information.

A reference current generator includes two transistors, a resistor and a mirroring circuit. The first transistor includes a source receiving a supply voltage, a drain connected with a first node, and a gate connected with a second node. The second transistor includes a source receiving the supply voltage, and a drain and a gate connected with a third node. The resistor is connected between the second node and the third node. The mirroring circuit includes an input terminal receiving an input current, a first mirrored terminal connected with the second node and a second mirrored terminal connected with the first node. The first mirrored terminal and the second mirrored terminal generate a first mirroring current and a second mirroring current respectively. The first transistor generates a saturation current. A reference current is equal to the saturation current minus the second mirroring current.

A high-frequency component test device including a test key and a test module is provided. The test key includes a front-level key and a back-level key which are arranged symmetrically and have the same electrical length and characteristic impedance. The test module is used to measure an S parameter of the front-level key and the back-level key connected directly and an S parameter of a structure where a device under test (DUT) is added between the front-level key and the back-level key. The test module performs S parameter calculation in the frequency domain and converts the S parameter into an ABCD parameter matrix, and then obtains an ABCD parameter of a de-embedded OUT using a matrix root-opening operation and an inverse matrix operation.

An optical transmission and reception carrier includes an optical fiber, an invisible light transmitter, an invisible light receiver, a visible light transmitter and a fiber optic connector. The invisible light transmitter is configured to emit a first invisible light toward the fiber optic connector and includes a first connection element. The invisible light receiver is configured to receive a second invisible light from the fiber optic connector and includes a second connection element. The visible light transmitter is configured to emit a visible light toward the fiber optic connector. One of the first connection element and the second connection element is a flexible printed circuit board.

A radar device for being installed on a vehicle is provided by the present disclosure. The radar device comprises a radar module configured to generate a radar detection area, and an adjustment mechanism. The adjustment mechanism includes a vehicle installation part configured to be mounted on a first side of the vehicle. The adjustment mechanism also includes a radar mounting part pivotally connected to the vehicle installation part. The radar mounting part is able to be pivoted relative to the vehicle installation part, and the radar mounting part is configured to secure the radar module.

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