Systems and methods that utilize an active stub/parasitic whip antenna to facilitate mobile communication
First Claim
1. A system that facilitates mobile communications, comprising:
- a transceiving component that is coupled to a first wireless communication device, the transceiving component receives a modulated signal from the first wireless communication device; and
an extendable component that is coupled to the transceiving component via a non-galvanic interface, the transceiving component conveys the modulated signal to the extendable component via electromagnetic induction, the extendable component transmits the signal to at least one other wireless communication device.
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Accused Products
Abstract
The present invention provides systems and methods that facilitate transmission and/or reception of radio frequency (RF) signals within a mobile communications device. The systems and methods include a first antenna component such as an active stub that comprises one or more active elements and a second antenna component such as a parasitic whip that is electromagnetically coupled to the first antenna component. The systems and methods provide a relatively compact antenna structure for mobile devices with limited physical volume, or footprint. The antenna structure does not require a mechanical interface (e.g., a galvanic connection) between the active stub and parasitic whip to provide a conductive connection to the whip when it is in an extended position. The novel systems and methods yield reduced antenna wear, higher antenna gain and better radiation efficiency than conventional systems and do not require a matching circuit to achieve multi-band resonances.
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Citations
26 Claims
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1. A system that facilitates mobile communications, comprising:
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a transceiving component that is coupled to a first wireless communication device, the transceiving component receives a modulated signal from the first wireless communication device; and
an extendable component that is coupled to the transceiving component via a non-galvanic interface, the transceiving component conveys the modulated signal to the extendable component via electromagnetic induction, the extendable component transmits the signal to at least one other wireless communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multi-frequency antenna for a mobile device, comprising:
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an active stub tuned to resonate at multiple frequencies; and
a parasitic whip coupled to the active stub, the parasitic whip receives a signal resonating within the tuned frequency band of the active stub and inductively transfers the signal to the active stub, which provides the signal to the mobile devices processing circuitry. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method for transmitting a radio frequency signal from a wireless communications device comprising:
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extending a parasitic whip to overlap an active stub;
providing the active stub with the radio frequency signal from the wireless communications device;
inducing a current in the parasitic whip; and
transmitting the signal utilizing both the active stub and the parasitic whip. - View Dependent Claims (21, 22)
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23. A method for receiving a radio frequency signal at a wireless communications device comprising:
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extending a parasitic whip to overlap an active stub;
receiving a signal utilizing both the parasitic whip and the active stub when the parasitic whip is extended; and
providing the received signal to the wireless communications device via the active stub. - View Dependent Claims (24, 25)
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26. A system that transmits and receives radio frequency signals comprising:
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means for configuring an active stub to transmit and receive data at a frequency; and
means for enhancing the ability of the active stub to transmit and receive data employing a parasitic whip.
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Specification