Wireless device with extendable antenna
First Claim
1. Wireless communication device having receiver circuits supporting at least two simultaneous independent receive paths in the same frequency band and/or transmitter circuits supporting at least two simultaneous independent transmit paths in the same frequency band, and having a multiport antenna with at least two ports and a sufficient number N of ports for the available receiver or transmitter circuits, said multiport antenna having multiple mechanical states, comprising at least a compact mechanical state and one extended mechanical state, and being connected to the N ports of the receiver and/or transmitter circuits by a 2N-port matching and decoupling network, which has multiple, selectable electrical states, each corresponding to at least one of the mechanical states of the multiport antenna system such that there is at least one first combination of the mechanical state of the multiport antenna system and the electrical state of the matching and decoupling network which allows for receive and/or transmit operation in a wireless channel of rank N, equal to the larger of the numbers of available receiver or transmitter circuits and to the number of antenna ports, and at least a second combination of the mechanical state of the multiport antenna and the electrical state of the matching and decoupling network allowing for receive and/or transmit operation in a wireless channel of rank less than N.
1 Assignment
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Accused Products
Abstract
A wireless device has receiver circuits and/or transmitter circuits supporting at least two simultaneous independent transmit paths in the same frequency band, and a multiport antenna with N ports, for the available receiver or transmitter circuits. The multiport antenna has a compact mechanical state and an extended mechanical state, and is connected to the N ports of the receiver and/or transmitter circuits by a 2N-port matching and decoupling network. This has multiple, selectable electrical states, each corresponding to at least one of the mechanical states. One combination of the mechanical state and the electrical state allows operation in a wireless channel of rank N. A second combination of the mechanical state and the electrical state allows operation in a wireless channel of rank less than N. Better MIMO performance with the extended antenna configuration can be obtained with the convenience of retaining limited performance when the user cannot use the extended antenna.
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Citations
20 Claims
- 1. Wireless communication device having receiver circuits supporting at least two simultaneous independent receive paths in the same frequency band and/or transmitter circuits supporting at least two simultaneous independent transmit paths in the same frequency band, and having a multiport antenna with at least two ports and a sufficient number N of ports for the available receiver or transmitter circuits, said multiport antenna having multiple mechanical states, comprising at least a compact mechanical state and one extended mechanical state, and being connected to the N ports of the receiver and/or transmitter circuits by a 2N-port matching and decoupling network, which has multiple, selectable electrical states, each corresponding to at least one of the mechanical states of the multiport antenna system such that there is at least one first combination of the mechanical state of the multiport antenna system and the electrical state of the matching and decoupling network which allows for receive and/or transmit operation in a wireless channel of rank N, equal to the larger of the numbers of available receiver or transmitter circuits and to the number of antenna ports, and at least a second combination of the mechanical state of the multiport antenna and the electrical state of the matching and decoupling network allowing for receive and/or transmit operation in a wireless channel of rank less than N.
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11. A method of using a wireless communication device having receiver circuits supporting at least two independent simultaneous receive paths in the same frequency band and/or transmitter circuits supporting at least two independent simultaneous transmit paths in the same frequency band, and having a multiport antenna with at least two ports and a sufficient number of N ports for available receiver or transmitter circuits, said multiport antenna having multiple mechanical states, comprising at least a compact mechanical state and one extended mechanical state, and being connected to the N ports of the receiver and/or transmitter circuits by a 2N-port matching and decoupling network, which has multiple, selectable electrical states, each corresponding to at least one of the mechanical states of the multiport antenna system such that there is at least a first combination of the mechanical state of the multiport antenna system and electrical state of the matching and decoupling network which allows for receive and/or transmit operation in a wireless channel of rank N, equal to the larger of the numbers of available receiver or transmitter circuits and to the number of antenna ports, and at least a second combination of the mechanical state of the multiport antenna and the electrical state of the matching and decoupling network allowing for proper receive and/or transmit operation in a wireless channel of rank less than N, the method comprising the steps of:
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transmitting and/or receiving using the wireless communication device in the first combination of states, adapting the wireless communication device into the second combination of states, and transmitting and/or receiving using the wireless communication device in the second combination of states. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless communication device having receiver circuits supporting at least two simultaneous independent receive paths in the same frequency band and/or transmitter circuits supporting at least two simultaneous independent transmit paths in the same frequency band, and having a multiport antenna with at least two ports and a sufficient number N of ports for the available receiver or transmitter circuits, said multiport antenna having multiple mechanical states, comprising at least a compact mechanical state and one extended mechanical state, and being connected to the N ports of the receiver and/or transmitter circuits by a 2N-port matching and decoupling network, which has multiple, selectable electrical states, each corresponding to at least one of the mechanical states of the multiport antenna system such that there is at least one first combination of the mechanical state of the multiport antenna system and the electrical state of the matching and decoupling network which allows for only transmit operation in a wireless channel of rank N, equal to the larger of the numbers of available receiver or transmitter circuits and to the number of antenna ports, and at least a second combination of the mechanical state of the multiport antenna and the electrical state of the matching and decoupling network allowing for only transmit operation in a wireless channel of rank less than N.
Specification