Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.

Abstract: The present invention relates to an apparatus for damping arid monitoring emissions from a light emitting device, particularly a vertical cavity surface emitting laser (VCSEL), comprising: a semi transparent substrate, preferably glass; a light emitting device for generating light emission; a damping layer deposited on a surface of the substrate; and a pair of electrodes, each of which being in direct contact with the damping layer. The damping layer is adapted to decrease the power level of the light emission of the light emitting device by absorption, to a desired level, for instance, to a level that meets eye safety limits. In addition, the damping layer is photosensitive to the light emission of the light emitting device, thereby allowing the pair of electrodes to output an electric signal corresponding to the power level of the light emission of the light emitting device.

Abstract: The present invention relates to a method for processing a digital signal through a linear device. The digital signal makes a transition from a first level to a second level. The method comprises pre-emphasizing the digital signal before/after processing it by the linear device. Pre-emphasizing the digital signal includes: pre-emphasizing the digital signal by applying an undershoot to the first level before the transition, when the first level is lower than the second level; and/or pre-emphasizing the digital signal by applying an overshoot to the first level before the transition, when the first level is higher than the second level. The present invention also relates to an apparatus using the above method.

Abstract: Disclosed embodiments relate to an interconnect structure for coupling at least one electronic unit for outputting and/or receiving electric signals, and at least one optical unit for converting said electric signals into optical signals and/or vice versa, to a further electronic component. The interconnect structure comprises an electrically insulating substrate and a plurality of signal lead pairs to be coupled between said electronic unit and a front end contact region for electrically contacting said interconnect structure by said further electronic component.

Abstract: The present invention relates to an interconnect structure for coupling at least one electronic unit for outputting and/or receiving electric signals, and at least one optical unit for converting said electric signals into optical signals and/or vice versa, to a further electronic component. The interconnect structure comprises an electrically insulating substrate (102) and a plurality of signal lead pairs (104, 120) to be coupled between said electronic unit (108, 116) and a front end contact region (106) for electrically contacting said interconnect structure by said further electronic component.

Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.

Abstract: An electrical connection interface is provided. The electrical connection interface includes a first ground plane layer, a second ground plane layer, a first substrate and a second substrate. The second ground plane layer is positioned to overlap the first ground plane layer. The first substrate includes a first substrate conductive lead with a first interface region connected to and electrically insulated from the first ground plane layer. The second substrate includes a second substrate conductive lead with a second interface region connected to the first substrate conductive lead and the second ground plane layer. The second substrate conductive lead is electrically insulated from the second ground plane layer.

Abstract: The present invention relates to an interconnect structure for coupling at least one electronic unit for outputting and/or receiving electric signals, and at least one optical unit for converting said electric signals into optical signals and/or vice versa, to a further electronic component. The interconnect structure comprises an electrically insulating substrate (102) and a plurality of signal lead pairs (104, 120) to be coupled between said electronic unit (108, 116) and a front end contact region (106) for electrically contacting said interconnect structure by said further electronic component.

Abstract: An optical receiver is disclosed having a dielectric non-conductive substrate. A ground plane is positioned on the dielectric non-conductive substrate. An optical signal converting photodiode is also positioned on the dielectric non-conductive substrate, and has an optical signal receiver and an electrical signal output. An electrical signal amplifier is provided having an input connected to the electrical signal output of the optical signal converting photodiode. A first opening is positioned in the ground plane and surrounds the optical signal converting photodiode. The first opening has a resonance frequency higher than a fundamental frequency such that crosstalk is reducible at the input of the electrical signal amplifier.

Abstract: Exemplary embodiments are disclosed of antenna devices for portable radio communication devices. In an exemplary embodiment, there is an antenna device for a portable radio communication device adapted for receiving radio signals in at least one frequency band. The antenna device includes a radiating element having a first branch and a second branch connected to a common elongated feeding section.

Abstract: In an exemplary embodiment, there is an auxiliary antenna device for a handheld radio communication device including ground plane means extending in a main direction and a main antenna device having an antenna element operatively coupled to the ground plane means and configured for reception of signals at a selected frequency and polarized essentially in the main direction. The auxiliary antenna device includes a balanced or self-balanced antenna element arrangement, an amplifier, and an output port. The balanced or self-balanced antenna element arrangement is configured for reception of signals at the selected frequency and polarized in a direction essentially orthogonal to the main direction. The amplifier is operatively connected to the balanced or self-balanced antenna element arrangement and configured for amplification of signals received by the balanced or self-balanced antenna element arrangement.

Abstract: Exemplary embodiments are disclosed of antenna devices for portable radio communication devices. In an exemplary embodiment, an antenna device comprises a monopole radiating element to be positioned along one end of a portable radio communication device, for operation of a plurality of complementary frequency bands including the FM frequency band. A feed offset positioned on the monopole radiating element divides the monopole radiating element in a first part and a second part to provide at least one complementary frequency band additional to the FM frequency band. The FM frequency band and the at least one additional complementary frequency band are fed through the feed.

Abstract: An exemplary embodiment includes a multiple-turn loop antenna arrangement comprising a multiple-turn loop element. The multiple-turn loop element is arranged in a first layer. A ground plane element is arranged in a second layer. The first and second layers are arranged in parallel. The multiple-turn loop element is arranged on top of the ground plane element. The ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.

Abstract: Exemplary embodiments are disclosed of switching arrangements for antenna devices. Exemplary embodiments are also disclosed of antenna arrangements and portable radio communication devices including such switching arrangements. An exemplary embodiment includes a switching arrangement for an antenna device operational in at least two frequency bands. In this example, the switching arrangement generally includes a switching device that is switchable into at least a first state and a second state. The switching device includes at least a first port, a second port, and a third port. The first port is connectable to an antenna device. The second port is connected to the first port in the first state. The third port is connected to the first port in the second state. The switching arrangement includes an inductor connected between the first port and ground.

Abstract: An exemplary embodiment of an antenna device generally includes a radiator structure with at least one first radiator element. The antenna device also includes a first feeding connection coupling the radiator structure to a first radio circuit for operation in a first frequency band. The antenna device further includes a second feeding connection coupling the radiator structure to a second radio circuit for operation in a second frequency band. A set of capacitors is connected to the radiator structure. This set includes at least one capacitor where a first end of each capacitor in the set is connected to the radiator structure and a second end is provided at ground potential, at least for the first frequency band. The sum of the values of the capacitors in the set is below 15 picofarads.

Abstract: An exemplary embodiment of an antenna device for operation in at least two operational frequency bands generally includes a loop element having a feeding end for connection to radio communication circuitry and a grounding end for connection to ground. The antenna device also includes first filtering means connecting the grounding end to ground, and switching means parallel with the first filtering means. The switching means is configured to connect the grounding end to ground parallel with the first filtering means in a first state, to match the loop element to a first operational frequency band of the at least two operational frequency bands. The switching means is configured to connect the grounding end to an open end parallel with the first filtering means in a second state, to match the loop element to a second operational frequency band of the at least two operational frequency bands.

Abstract: The present invention relates to an antenna device for a portable radio communication device adapted for receiving and/or transmitting radio signals in at least a first and a second operating frequency band, said antenna device comprising a half-loop radiating element, comprising a feeding portion and a grounding portion, and arranged to operate at FM frequencies. The antenna device comprises a capacitor at said feeding portion and an inductor at said grounding portion, and said half-loop radiating element is arranged to simultaneously with FM frequencies operate at frequencies at least ten times higher than FM frequencies, wherein said capacitor is arranged to short circuit said half-loop radiating element to ground for frequencies at least ten times higher than FM frequencies and said inductor is arranged to short circuit said half-loop radiating element to ground for FM frequencies.

Abstract: An exemplary embodiment includes an antenna arrangement for a portable radio communication device comprising an NFC (near field communication) antenna, a BT (Bluetooth) antenna and an FM (frequency modulation) antenna. The NFC antenna, BT antenna and FM antenna are positioned in close proximity to each other and are operable simultaneously. The NFC antenna is fed through a first decoupling filter and is grounded through a second decoupling filter.

Abstract: An exemplary embodiment includes an antenna arrangement for a portable radio communication device comprising at least a first radiating element and a ground plane means. The antenna arrangement comprises a first conductor, which first conductor in a first point is electrically connected to the ground plane means through a high pass filter means and in a first end is open ended. A second end of the first conductor is connected to a FM receiver, FM transmitter, or FM transceiver.

Abstract: Exemplary embodiments are disclosed of antenna arrangements for portable radio communication devices. In an exemplary embodiment, there is an antenna arrangement for a portable communication device having a metal casing. A front side part forms a ground plane means for the portable radio communication device. A first back side part is connected to the front side part through a top side part. A second back side part is connected to the front side part through a bottom side part. The top and bottom side parts are positioned at opposite ends of the front side part. The first and second back side parts are positioned and distanced from each other by a gap. A magnetic type antenna element is positioned partly in the gap and positioned partly over or along the first back side part, the top side part, or the front side part.