Microstrip antenna for an identification appliance
DCFirst Claim
1. A wireless identification band adapted to communicate with another wireless device, the wireless identification band comprising:
- a band structure adapted to be worn by or attached to a person, the band structure having a first surface and a second surface, the second surface being located closer to the person than the first surface when the band structure is worn by or attached to the person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the band structure, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to the person;
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the band structure comprising at least two layers and the microstrip antenna and communication circuit being embedded between the at least two layers.
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Accused Products
Abstract
An identification appliance, such as a wristband, bracelet, patch, headband, necklace, card, sticker, or other wearable appliance, has an improved patch or microstrip antenna. The microstrip antenna comprises a conductive patch layer, a conductive ground layer and a dielectric layer in between the conductive layers. The microstrip antenna is mounted to or disposed in the identification appliance, where preferably the ground layer is closest to the user and the patch layer is furthest from the user. Electronic circuits may be located in the dielectric layer, on a surface of a conductive layer, or on another part of the identification appliance. Connecting holes through the dielectric layer may allow circuits to be connected to a conductive layer or layers. This improved antenna resolves detuning and communication degradation problems.
262 Citations
105 Claims
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1. A wireless identification band adapted to communicate with another wireless device, the wireless identification band comprising:
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a band structure adapted to be worn by or attached to a person, the band structure having a first surface and a second surface, the second surface being located closer to the person than the first surface when the band structure is worn by or attached to the person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the band structure, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to the person;
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the band structure comprising at least two layers and the microstrip antenna and communication circuit being embedded between the at least two layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A wireless identification band adapted to communicate with another wireless device, the wireless identification band comprising:
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a band structure adapted to be worn by or attached to a person, the band structure having a first surface and a second surface, the second surface being located closer to the person than the first surface when the band structure is worn by or attached to the person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the band structure, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to the person;
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the band structure further comprising a closure mechanism, the microstrip antenna being a portion of the closure mechanism. - View Dependent Claims (46, 47, 48)
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49. A wireless identification appliance adapted to communicate with another wireless device, the identification appliance comprising:
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a structure adapted to be worn, attached or carried by a person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the structure such that when the structure is worn, attached or carried by the person, the microstrip antenna is adapted to radiate energy away from the person and to radiate substantially less energy toward the person, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to or carried by the person;
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the structure comprising at least two layers and the microstrip antenna and communication circuit being embedded between the at least two layers. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)
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86. A wireless identification appliance adapted to communicate with another wireless device, the identification appliance comprising:
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a structure adapted to be worm, attached or carried by a person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the structure such that when the structure is worm, attached or carried by the person, the microstrip antenna is adapted to radiate energy away from the person and to radiate substantially less energy toward the person, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to or carried by the person;
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the structure further comprising a closure mechanism, the microstrip antenna being a portion of the closure mechanism; and
wherein tampering or opening of the closure mechanism after closure of the closure mechanism causes the control circuit to determine that tampering has occurred. - View Dependent Claims (87)
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88. A wireless identification band adapted to communicate with another wireless device, the wireless identification band comprising:
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a band structure adapted to be worn by or attached to a person, the band structure having a first surface and a second surface, the second surface being located closer to the person than the first surface when the band structure is worn by or attached to the person;
a communication circuit including a data storage device adapted to store data associated with the person, and a control circuit coupled to said data storage device; and
a microstrip antenna disposed on or in the band structure, the microstrip antenna comprising a conductive patch layer, a conductive ground layer and a dielectric material disposed between the patch layer and the ground layer, the ground layer being located closer to the person than the patch layer when the structure is worn by or attached to the person; and
said control circuit being further coupled to the microstrip antenna, the control circuit being adapted to communicate through the microstrip antenna with the another wireless device;
the band structure comprising an elongated flexible strap, and the microstrip antenna and communication circuit comprising thin film, flexible elements carried by said strap. - View Dependent Claims (89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105)
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Specification