Resources Contact Us Home
Radio frequency identification tag antenna using proximity coupling for attaching to metal

Image Number 3 for United States Patent #7876269.

An antenna attached to an object and transmitting electromagnetic waves that are modulated by an RFID tag chip includes a polygonal dielectric material layer that is adjacent to the object, a microstrip patch that determines a resonance frequency of the antenna, a microstrip line that is electromagnetically coupled with the microstrip match, and a shorting pin that disconnects the object and the microstrip line. Accordingly, a small-sized antenna that can be attached to metal can be realized.

  Recently Added Patents
Systems and methods for excluding undesirable network transactions
Radio transmitter and radio receiver with channel condition assessment
Network client validation of network management frames
TRPM8 antagonists and their use in treatments
System for setting programmable parameters for an implantable hypertension treatment device
Controller for internal combustion engine
Plants and seeds of hybrid corn variety CH514730
  Randomly Featured Patents
Playhouse for pets
Programmed I/O ethernet adapter with early interrupts for accelerating data transfer
Optically active benzoic ester derivatives
Fibrous tissue dressing or implant
Composite material and resin mold
Underwater acoustic control system
Method and apparatus for implementing dynamically sizable color tables
Intelligent logistics goods binding system
Interspecific tree named `Yuba Gold`
Active-passive imager pixel array with small groups of pixels having short common bus lines