摘要:
The present invention is directed to a multi-band cable antenna. A multi-band cable antenna according to the present invention comprises: a dielectric substrate, as a nonconductive dielectric having a predetermined dielectric constant, with a plurality of conductive microstrips formed on the top and bottom sides of the substrate, for inducing a resonance in the multi-band; signal transfer means including the first and second conductors for signal transfer, which are electrically separated from each other by a layer of insulator, the first conductor for signal transfer configured to be short-circuited with one of microstrips formed on the top side of the dielectric substrate; a conductive solder ball for physically coupling one of the conductors for signal transfer with the microstrips formed on the top side of the dielectric substrate; and an upper and lower short-circuited conductor for short-circuited the second conductor for signal transfer on the signal transfer means with one of the micristrips formed on the bottom side of the dielectric substrate, wherein the upper and lower short-circuited conductor and the microstrips formed on the bottom side circuit-shorted with the second conductor of signal transfer are electrically grounded.
摘要:
The present invention is directed to an internal multi-band antenna with multiple layers. The internal multi-band antenna comprises a main radiation patch for forming an upper side of the antenna, one side of the main radiation patch connected to a feeder, the main radiation patch including a plurality of strips in the same plane and formed by a folded slit patch of maze type; and at least one auxiliary radiation patch bent downwardly at one side of an edge of the main radiation patch and formed in parallel to the main radiation patch between the main radiation patch and a feeder ground plane. In addition, the internal multi-band antenna further comprises a feeder connected to one side of the main radiation patch for transmitting receive signals of the antenna and radiation signals of a body of the portable terminal; a feeder extension extending vertically from a predetermined position in a longitudinal direction of the feeder; and an inverted Y type feeder structure formed by a feeder ground bent at an end of the feeder extension and contacting a ground plane.
摘要:
This invention includes a composition of Agastache rugosa and tilianin obtained by separation-purification for anti-inflammation and anti-atherosclerosis, and more particularly, an extract of Agastache rugosa and tilianin obtained therefrom by separation-purification which are effective in preventing and treating not only inflammatory diseases but also atherosclerosis related to inflammatory responses and disease in the circulatory system caused by atherosclerosis because they are excellent in inhibiting the activity of complement systems as a factor of inflammatory responses, the expression of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecular-1 (VCAM-1), and the production of nitric oxide (NO). They can also significantly reduce the development of atherosclerosis due to the inflammatory response.
摘要:
A gate-on voltage generation circuit, a gate-off voltage generation circuit, and a liquid crystal display (LCD) using the same are provided. The gate-on voltage generation circuit includes a first capacitor charged with a first control signal and a first reference voltage to output a first charging voltage through a first output node according to the first control signal. A second capacitor is charged with a second control signal and the first reference voltage to output a second charging voltage according to the second control signal. A first switching device is connected between the first capacitor and the first output node to selectively output the first charging voltage to the first output node. A second switching device is turned on by the second charging voltage to supply the first reference voltage to the first capacitor, the first and second switching devices being exclusively turned on and off. A third switching device is turned on by the first charging voltage to supply the first reference voltage to the second capacitor. The third switching device turns on the first switching device and at the same time turns off the second switching device by supplying the first reference voltage to the first and second switching devices.
摘要:
An apparatus is provided including an air diffuser, a filter, a cover, a fan, and a shade in which the fan is located. The air diffuser may be surrounded by the filter except for a bottom opening in the air diffuser. The cover may surround the filter and the air diffuser except for a bottom opening in the filter and the bottom opening in the air diffuser. The air diffuser and the cover may be attached to the shade. The shade may have a bottom opening. The fan may cause air to flow into the shade through the bottom opening of the shade, then through the bottom opening of the air diffuser, the filter, and a first opening of the cover, then out a set of a plurality of openings in a side of the air diffuser, then through the filter, and then out a set of a plurality of openings in the cover.
摘要:
Provided are a digitally controlled circulator and a radio frequency identification (RFID) reader having the circulator. A power splitter is composed of lumped elements and the values of the elements are digitally changed using switching means, in which the transmission loss of a signal is controlled according to whether the reader is in a transmission state or a reception state. Therefore, the loss can be minimized, and the circulator can be miniaturized and priced down by an integrated circuit (IC) semiconductor process and mounted in a mobile terminal such as a cellular phone.
摘要:
A dual mode terminal having a communication module controlled by a message, communication system for communicating with a dual mode terminal, and method for controlling a dual mode terminal are disclosed. In a dual mode terminal capable of communicating with a cellular network and a supplementary service network, and wherein the cellular network communicates with the supplementary service network, the present invention includes a first communication module providing a control signal to activate a second communication module for communicating with the supplementary service network responsive to a first message received from the cellular network. While inactive, the second communications module does not consume power nor interfere with communications of the first communications module.
摘要:
A NAND flash memory device includes a semiconductor substrate having a drain select transistor; a source select transistor, and memory cell transistors connected in series between the drain select transistor and the source select transistor, and an oxide film formed in the semiconductor substrate at each of a first side and a second side of a gate of the source select transistor. A method of manufacturing a NAND flash memory device includes providing the semiconductor substrate and forming the oxide film in the semiconductor substrate at each of the first side and the second side of the gate of the source select transistor.
摘要:
Provided is a receiver of a passive radio frequency identification (RFID) reader, which eliminates a leakage signal from a reception signal comprised of a RFID tag response signal and the leakage signal. The receiver includes a phase adjustment unit adjusting a local oscillation signal received from a frequency synthesizer to have a phase difference of a predetermined angle from the leakage signal. Since the phase adjustment unit adjusts the phase difference, the leakage signal input to the receiver of the RFID reader can be eliminated. Consequently, the performance of the receiver can be enhanced.
摘要:
Disclosed herein is a dielectric chip antenna structure using a metal conductor formed at the lateral side of the antenna along the longitudinal direction of the antenna. The dielectric chip antenna structure forms the metal conductor at the long side of the antenna to induce antenna resonance through coupling effect between the antenna and the ground. Furthermore, the dielectric chip antenna structure minimizes the space occupied by the antenna and modifies the theoretical feeding structures of the reverse F type antenna and monopole antenna to meet user's various demands.