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US 10,186,781 B2Granted
Edge type dipole antenna structure and PCB including the same
AssigneeNethom
InventorGun-Hong Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to printed circuit board (PCB) tracking technology, specifically to a dipole antenna structure for a radio frequency identification (RFID) tag. More specifically, the present invention relates to an edge type dipole antenna structure is implemented on an extremely small area on the edge of a ground plane provided on the PCB for various kinds of electronic products, and a PCB including the same.
Claims24
An edge type dipole antenna structure embodied in a printed circuit board (PCB) of an electronic product, comprising:
- a slit having a gap formed in an edge of a ground plane of the PCB such that the edge of the ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit;
- and
- wherein a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip.
3 more elements
A printed circuit board (PCB) of an electronic product in which a ground plane is provided on one surface of the PCB, comprising:
- a slit having a gap formed in an edge of the ground plane such that the edge of the ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit;
- and
- wherein a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip.
3 more elements
A printed circuit board (PCB) of an electronic product in which an upper-surface ground plane and an undersurface ground plane are provided on the PCB, comprising:
- a slit having a gap formed in an edge of the upper-surface ground plane such that the edge of the upper-surface ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit;
- and
- wherein a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip.
3 more elements
A printed circuit board (PCB) of an electronic product comprising an edge type dipole antenna structure,
- wherein the edge type dipole antenna structure comprises:
- a slit having a gap formed in an edge of a ground plane of the PCB such that the edge of the ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit;
- and
- wherein a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip.
4 more elements
A system comprising:
- a printed circuit board (PCB) of an electronic product in which a ground plane is provided on one surface of the PCB,
- wherein the PCB comprising:
- a slit having a gap formed in an edge of the ground plane such that the edge of the ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit, and a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip;
- and
- a reader-writer which communicates with the tag chip in the PCB through a wireless means.
5 more elements
A system comprising:
- a printed circuit board (PCB) of an electronic product in which an upper-surface ground plane and an undersurface ground plane are provided on the PCB,
- wherein the PCB comprising:
- a slit having a gap formed in an edge of the upper-surface ground plane such that the edge of the upper-surface ground plane acts as a dipole antenna of a tag chip in a longitudinal direction of the edge;
- and
- an expanded portion extending from the slit, the expanded portion imparting inductive reactance to the slit,
- wherein the tag chip is connected to the slit, and a dimension of the expanded portion associated with the inductive reactance is determined based on a relationship between power transferred to the tag chip and the dimension of the expanded portion such that a desired power is transferred to the tag chip;
- and
- a reader-writer which communicates with the tag chip in the PCB through a wireless means.
5 more elements
Dependencies are inferred from the claim text.