摘要:
An automatic retractable device of a flexible printed circuit board is described. The automatic retractable device of the flexible printed circuit board comprises a bracket, two elastic components and two rollers. By combining the elastic components, the rollers and the flexible printed circuit board, the flexible printed circuit board can revert to an original position after the flexible printed circuit board is used.
摘要:
A monopole antenna for an electronic device includes a grounding element electrically connected to a ground, a radiating element including a first radiator and a second radiator for transmitting and receiving a wireless signal of a first frequency band, a coupling element electrically connected to the second radiator for transmitting and receiving a wireless signal of a second frequency band, and a feed-in element electrically connected between the second radiator of the radiating element and the grounding element for transmitting the wireless signals of the first frequency band and the second frequency band.
摘要:
A monopole antenna for an electronic device includes a grounding element electrically connected to a ground, a radiating element including a first radiator and a second radiator for transmitting and receiving a wireless signal of a first frequency band, a coupling element electrically connected to the second radiator for transmitting and receiving a wireless signal of a second frequency band, and a feed-in element electrically connected between the second radiator of the radiating element and the grounding element for transmitting the wireless signals of the first frequency band and the second frequency band.
摘要:
The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to form a space therebetween. The distance between the ground portion and the radial portion is defined as a transceiver unit height. The dielectric unit is disposed in the space. That is, the dielectric unit is disposed between the ground portion and the radial portion. The dielectric unit has a dielectric unit thickness less than the transceiver unit height. In one embodiment, the ratio of the dielectric unit thickness to the transceiver unit height is preferably between 0.4 and 0.7.
摘要:
The present invention provides an antenna device comprising: a contact substrate with a plurality of electrical contacts, an antenna substrate, and a connecting member connected between said contact substrate and said antenna substrate. Said connecting member is flexible and foldable and is provided with at least one corner portion. Said corner portion defines at least one horizontal section and at least one vertical section to render the antenna device better adaptability.
摘要:
A docking station suitable for detachably assembling to an electronic device is provided. A bracket of the docking station includes a housing, a pushing element, a restoring element, and a main hook. When the pushing element is slid relative to the housing through the restoring element so the main hook is buckled to a main groove of the electronic device, a main hook relation between the bracket and the electronic device is established. When the pushing element is slid relative to the housing so the main hook departs from the main groove, a secondary hook of the docking station establishes a secondary hook relation between the bracket and the electronic device. When the electronic device is removed from the bracket until the secondary hook relation between the bracket and the electronic device is released, the restoring element restores the pushing element relative to the housing.
摘要:
An antenna structure consists of a substrate, a radiation element, a signal feeding element, and a grounding element. The radiation element includes a first radiator and a second radiator coupled to the first radiator, wherein the first radiator is identical to the second radiator. The signal feeding element is coupled to a joint of the first radiator and the second radiator, wherein the first radiator and the second radiator are symmetrically disposed in the left and right sides of the signal feeding element to permute an array. The grounding element includes a first grounding sub-element and a second grounding sub-element, wherein the first grounding sub-element is coupled between the first radiator and the substrate and the second grounding sub-element is coupled between the second radiator and the substrate. The first grounding sub-element is identical to the second grounding sub-element.
摘要:
A slidable motherboard tray structure is disclosed for holding and moving a motherboard. The slidable motherboard tray structure is featured in using leverage principle to design handle elements pivotally connected to a motherboard tray housing, so that pushing force is generated between the respective handle elements and supporting elements, thereby enabling the motherboard located in the motherboard tray housing to slide to a predetermined position, thus achieving the purposed of automatically positioning and saving force.
摘要:
A HDD tray structure is disclosed. The HDD tray structure includes a tray housing, a flexible printed circuit board (FPC) installed on the tray housing, and at least one indicators, wherein one end of the FPC has a metal pad electrically connected to a connector of a printed circuit board, and the other end of the FPC is in electrical contact with the indicator, so as to control the on/off state of the indicator.
摘要:
A mobile communication device and a method thereof. The mobile communication device includes a processor, a transceiver circuit, an amplifier circuit, and a control logic circuit. The processor generates a baseband signal and a gain control signal. The transceiver circuit converts the baseband signal to an analog form, and amplifies the converted baseband signal to output a first transmission signal. The amplifier circuit amplifies the first transmission signal to output a second transmission signal. The control logic circuit controls the transceiver circuit and the amplifier circuit based on the gain control signal to generate the second transmission signal. The transceiver circuit adopts one of a first plurality of power gain levels at an increasing sequence when the amplifier circuit adopts a lowest level of a second plurality of power gain levels.