Abstract:
An antenna module is provided. The antenna module comprises a first radiation conductor, a second radiation conductor, a short-circuit element (s/c element), a ground plane, a feed-in cable and a spurious radiation conductor. One terminal of the second radiation conductor is near the first radiation conductor with a gap. One terminal of the s/c element is connected to the second radiation conductor and the other side of the s/c element is connected to the ground plane. The feed-in cable comprises a centre conductor and an external conductor, wherein the centre conductor is connected to the first radiation conductor and the external conductor is connected to the ground plane. The spurious radiation conductor is connected to the second radiation conductor. The second radiation conductor comprises a spurious radiation plate, a first radiation piece and a second radiation piece within the two sides of the second radiation conductor. The first radiation piece and a second radiation piece are in parallel and a gap is conducted between the first radiation piece and the second radiation piece.
Abstract:
An electrical connector includes a top plate, a first clamping plate extending integrally and downwardly from a first side of the top plate, and a second clamping plate extending integrally and downwardly from a second side of the top plate, and cooperating with the top plate and the first clamping plate to define a clamp for clamping a grounding plate. A connecting member extends integrally from the second side of the top plate and is connected electrically to a ground pattern provided on a circuit board of an antenna module.
Abstract:
A wide band antenna has a ground plane, a dielectric member and a radiating patch. The dielectric member is mounted on the ground plane. The radiating patch is held by the dielectric member, is mounted on the ground plane and has a main conductor, a feeding conductor, a coupling conductor, an extension conductor and a shorting conductor. The main conductor has a first resonant mode. The extension conductor has a second resonant mode. The coupling conductor is capable of feeding high frequency signals into the main conductor and the extension conductor by capacitive coupling effect. With the main conductor, the extension conductor and the coupling conductor, the size of the wide band antenna is effectively reduced.
Abstract:
An antenna module is provided. The antenna module comprises a first radiation conductor, a second radiation conductor, a short-circuit element (s/c element), a ground plane, a feed-in cable and a spurious radiation conductor. One terminal of the second radiation conductor is near the first radiation conductor with a gap. One terminal of the s/c element is connected to the second radiation conductor and the other side of the s/c element is connected to the ground plane. The feed-in cable comprises a centre conductor and an external conductor, wherein the centre conductor is connected to the first radiation conductor and the external conductor is connected to the ground plane. The spurious radiation conductor is connected to the second radiation conductor. The second radiation conductor comprises a spurious radiation plate, a first radiation piece and a second radiation piece within the two sides of the second radiation conductor. The first radiation piece and a second radiation piece are in parallel and a gap is conducted between the first radiation piece and the second radiation piece.
Abstract:
A retainer is adapted for retaining a coaxial cable on a planar antenna. The coaxial cable includes a core conductor disposed at the center thereof, an insulator provided around the core conductor, an outer conductor provided around the insulator, and an insulating sheath provided around the outer conductor. The retainer is metallic, and includes a clamping member including a C-shaped clamp for clamping and contacting electrically the outer conductor of the coaxial cable, and a connecting member connected integrally to the clamping member and adapted to be connected electrically to the planar antenna.
Abstract:
A multiband antenna with the broadband function has a radiator, a feed cable, a first extension conductor, and a second extension conductor. The radiator has a microwave substrate, a coupling conductor, a first conductor, a second conductor, a third conductor, and a connecting conductor. The coupling conductor is connected with a positive signal wire of the feed cable. The third conductor is connected with a negative signal of the feed cable for transmitting electrical signals. The radiator generates the multiband mode of the antenna. By connecting the first extension conductor and the second extension conductor with the radiator, the surface current distribution and impedance variation of the antenna can be effectively adjusted to achieve the broadband effect.
Abstract:
To control printing in a printer image data of an edge region of a printing medium is received, then it is determined if the edge region contains a pixel whose gray level is higher than a predetermined gray level. The image data is updated by lowering gray levels if the edge region contains the pixel whose gray level is higher than the predetermined gray level. Then, a ribbon is heated to transfer dye on the ribbon to the printing medium according to a result of updating the gray levels of the image data.
Abstract:
A method for recognizing a color of a printing ribbon includes providing a printing ribbon having a repeated sequence of dyed and undyed regions such that output of a photosensor sensing the ribbon is a low or high level based on a threshold. The method includes illuminating a sensing area of the ribbon, moving the ribbon relative to the sensing area, measuring output of the photosensor over time as the ribbon moves, correlating output of the photosensor to the repeated sequence as the ribbon moves to determine the color of the ribbon under the print head, and setting operational parameters of the printer and print head according to the color of the ribbon under the print head. The repeated sequence is unprintable black dye, yellow dye with undyed ribbon, magenta dye, undyed ribbon, cyan dye, and transparent overcoating with undyed ribbon.
Abstract:
A multi-antenna module comprises a ground plane, a primary conductor, a secondary conductor and a plurality of coupling conductors, wherein the framework of the parallel primary radiation arm and secondary radiation arm can infinitely expand the number of antenna units in the same antenna structure. The capacitive coupling effect of parallel radiation arms and the inductance of the radiation arms themselves can effectively reduce the signal interference between antennae, whereby a plurality of antennae can be integrated to achieve antenna miniaturization. The primary conductor, the secondary conductor and the coupling conductors are all connected to the same ground plane, whereby the layout space is reduced, and the multi-antenna module is easy-to-assemble for various electronic devices.
Abstract:
A multi-antenna module comprises a ground plane, a primary conductor, a secondary conductor and a plurality of coupling conductors, wherein the framework of the parallel primary radiation arm and secondary radiation arm can infinitely expand the number of antenna units in the same antenna structure. The capacitive coupling effect of parallel radiation arms and the inductance of the radiation arms themselves can effectively reduce the signal interference between antennae, whereby a plurality of antennae can be integrated to achieve antenna miniaturization. The primary conductor, the secondary conductor and the coupling conductors are all connected to the same ground plane, whereby the layout space is reduced, and the multi-antenna module is easy-to-assemble for various electronic devices.