Modem card with balanced antenna
First Claim
Patent Images
1. A modem card comprising:
- a connector having pin configuration in accordance with a Personal Computer Memory Card International Association (PCMCIA) standard;
electronics connected to the connector; and
a balanced antenna connected to the electronics, the balanced antenna comprising a transformer loop having a balanced feed interface and a capacitively-loaded loop radiator coupled to the transformer loop.
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Accused Products
Abstract
A cellular modem card that conforms to a PCMCIA standard includes a balanced antenna. The balanced antenna minimizes susceptibility to limited available ground plane and limited ground connections between the modem card and a host device, such as laptop computer. The balanced antenna may be a dipole antenna, loop antenna, capacitively loaded antenna, or any other suitable balanced antenna.
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Citations
20 Claims
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1. A modem card comprising:
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a connector having pin configuration in accordance with a Personal Computer Memory Card International Association (PCMCIA) standard; electronics connected to the connector; and a balanced antenna connected to the electronics, the balanced antenna comprising a transformer loop having a balanced feed interface and a capacitively-loaded loop radiator coupled to the transformer loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cellular modem card comprising:
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a connector having pin configuration in accordance with a Personal Computer Memory Card International Association (PCMCIA) standard; electronics connected to the connector and comprising a cellular transceiver; and a balanced antenna connected to the cellular transceiver, the balanced antenna comprising a transformer loop having a balanced feed interface and a capacitively-loaded loop radiator coupled to the transformer loop. - View Dependent Claims (12, 13)
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14. A cellular modem card comprising:
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a housing having a form conforming to a Personal Computer Memory Card International Association (PCMCIA) standard; a connector having pin configuration and a form in accordance with the PCMCIA standard secured to the housing; electronics connected to the connector and comprising a cellular transceiver; and a balanced antenna connected to the cellular transceiver, the balanced antenna comprising a transformer loop having a balanced feed interface and a capacitively-loaded loop radiator coupled to the transformer loop. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification