Patents by Inventor Yuan-Tung Cheng

Yuan-Tung Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual-band FR4 chip antenna
    Patent number: 6795026
    Abstract: A dual-band FR4 chip antenna is disclosed. The present invention forms a meandering radiating metal line on a low-cost FR4 chip base, thereby achieving a dual-band operation. The present invention comprises: an FR4 chip base made of an FR4 material; a meandering radiating metal line; and a connecting point, wherein the meandering radiating metal line is formed on at least two surfaces of the FR4 chip base, and the connecting point is used for connecting the meandering radiating metal line to a signal transmission line. The present invention can cover two ISM (Industrial-Scientific-Medical) bands, such as those around 2450 MHz and 5800 MHz. The FR4 chip antenna in the present invention is not only easy to be integrated with microwave circuits, but also sturdy and cheap, and is further suitable for using the surface-mounting technology (SMT) to perform a mass production. In addition, the present invention has two separate wide bandwidths, and is suitable for dual-band operation.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: September 21, 2004
    Assignees: Accton Technology Corporation, Kin-Lu Wong
    Inventors: Tsung-Wen Chiu, Yuan-Tung Cheng, Kin-Lu Wong
  • Dual-band FR4 chip antenna
    Publication number: 20030103007
    Abstract: A dual-band FR4 chip antenna is disclosed. The present invention forms a meandering radiating metal line on a low-cost FR4 chip base, thereby achieving a dual-band operation. The present invention comprises: an FR4 chip base made of an FR4 material; a meandering radiating metal line; and a connecting point, wherein the meandering radiating metal line is formed on at least two surfaces of the FR4 chip base, and the connecting point is used for connecting the meandering radiating metal line to a signal transmission line. The present invention can cover two ISM (Industrial-Scientific-Medical) bands, such as those around 2450 MHz and 5800 MHz. The FR4 chip antenna in the present invention is not only easy to be integrated with microwave circuits, but also sturdy and cheap, and is further suitable for using the surface-mounting technology (SMT) to perform a mass production. In addition, the present invention has two separate wide bandwidths, and is suitable for dual-band operation.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Tsung-Wen Chiu, Yuan-Tung Cheng, Kin-Lu Wong
  • Antenna with diffraction grating modulator
    Patent number: 6037904
    Abstract: An antenna includes a substrate, a microstrip patch or a slot, a feed line connected to the microstrip patch or slot, and a diffraction grating modulator mounted on the substrate and formed with a spatial periodic structure. The microstrip patch or slot radiates and receives electromagnetic waves when a signal between the substrate and the microstrip patch or slot satisfies resonance conditions. The diffraction grating modulator diffracts the electromagnetic waves in a predetermined manner so as to improve antenna gain and side lobe bandwidth and modulate directionality of the antenna.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: March 14, 2000
    Inventors: Yuan-Tung Cheng, Chin-An Su