摘要:
A planar antenna disposed on a plate having a first surface and a second surface is provided. The planar antenna includes a metal layer, an antenna body, a stepped impedance device, a coupling device and a matching device. The metal layer is disposed on the first surface and has a slot line exposing the first surface. The antenna body, the stepped impedance device, the coupling device and the matching device are disposed on the second surface. The antenna body is corresponding to a surrounding of the metal layer except a feed end thereof, the stepped impedance device and the matching device are corresponding to the metal layer, and the coupling device is corresponding to the slot line. The matching device is coupled between the coupling device and the feed end. The stepped impedance device has a transmission zero in a radio frequency band operated by the antenna body.
摘要:
A portable electronic device and a transferring method of a circuit element thereof are provided. The portable electronic device comprises a main body and a circuit element. The main body has a shell and a control element by a print way. The circuit element is integrated with the shell by transferring and is electrically connected with the control element.
摘要:
The invention relates to a method and a system for information corresponding to a geographical position. The method includes the following steps. First, a plurality of words are captured from electronic information. Then, position information conforming to a specific address format is searched out in the captured words. Furthermore, the position information is converted to latitude and longitude data.
摘要:
A portable electronic device and a transferring method of a circuit element thereof are provided. The portable electronic device comprises a main body and a circuit element. The main body has a shell and a control element by a print way. The circuit element is integrated with the shell by transferring and is electrically connected with the control element.
摘要:
A planar antenna disposed on a plate having a first surface and a second surface is provided. The planar antenna includes a metal layer, an antenna body, a stepped impedance device, a coupling device and a matching device. The metal layer is disposed on the first surface and has a slot line exposing the first surface. The antenna body, the stepped impedance device, the coupling device and the matching device are disposed on the second surface. The antenna body is corresponding to a surrounding of the metal layer except a feed end thereof, the stepped impedance device and the matching device are corresponding to the metal layer, and the coupling device is corresponding to the slot line. The matching device is coupled between the coupling device and the feed end. The stepped impedance device has a transmission zero in a radio frequency band operated by the antenna body.
摘要:
The plastic composition includes PET and Nylon. The weight percentage of PET is between 20% and 90%. The weight percentage of Nylon is between 5% and 40%.
摘要:
The invention discloses a method which may determine a reference point when multiple trigger points are triggered on a detecting device by a user's finger. Whether the reference point corresponds to a left clicking or a right clicking is determined according to the corresponding position relation between the reference point and the trigger points. Operations of a conventional mouse may be performed by the user merely through a touch panel.
摘要:
An electronic device includes first and second housings which are pivoted to each other, and a spring-biased stopper mounted movably on an upper wall of the first housing. The stopper is movable in a transverse direction relative to the upper wall between an engaging position, in which the stopper projects outwardly of the first housing through the upper wall and engages the second housing, and a second position, in which the stopper is received in the first housing and disengages from the second housing.
摘要:
An electronic device includes first and second housings which are pivoted to each other, and a spring-biased stopper mounted movably on an upper wall of the first housing. The stopper is movable in a transverse direction relative to the upper wall between an engaging position, in which the stopper projects outwardly of the first housing through the upper wall and engages the second housing, and a second position, in which the stopper is received in the first housing and disengages from the second housing.
摘要:
An electronic device includes first and second housings which are pivoted to each other, and a spring-biased stopper mounted movably on an upper wall of the first housing. The stopper is movable in a transverse direction relative to the upper wall between an engaging position, in which the stopper projects outwardly of the first housing through the upper wall and engages the second housing, and a second position, in which the stopper is received in the first housing and disengages from the second housing.