Low-Profile Multiband Antenna For a Wireless Communication Device
First Claim
1. A device for wireless communication, comprising:
- a wireless transceiver;
a printed circuit board (PCB) coupled to the wireless transceiver;
a first antenna coupled to the PCB at a feed point and grounded at a ground point, the first antenna being a quarter-wavelength antenna communicating signals with the wireless transceiver at a first frequency band; and
a second antenna coupled to the first antenna at the feed point and grounded at a further ground point, the second antenna being a half-wavelength antenna communicating signals with the wireless transceiver at a second frequency band.
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Accused Products
Abstract
A device for wireless communication including a wireless transceiver, a printed circuit board (PCB) coupled to the wireless transceiver, a first antenna and a second antenna. The first antenna is coupled to the PCB at a feed point and grounded at a ground point. The first antenna is a quarter-wavelength antenna communicating signals with the wireless transceiver at a first frequency band. The second antenna is coupled to the first antenna at the feed point and grounded at a further ground point. The second antenna is a half-wavelength antenna communicating signals with the wireless transceiver at a second frequency band.
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Citations
20 Claims
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1. A device for wireless communication, comprising:
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a wireless transceiver; a printed circuit board (PCB) coupled to the wireless transceiver; a first antenna coupled to the PCB at a feed point and grounded at a ground point, the first antenna being a quarter-wavelength antenna communicating signals with the wireless transceiver at a first frequency band; and a second antenna coupled to the first antenna at the feed point and grounded at a further ground point, the second antenna being a half-wavelength antenna communicating signals with the wireless transceiver at a second frequency band. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An antenna arrangement, comprising:
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a first antenna adapted to be coupled to a printed circuit board at a feed point and adapted to be grounded at a ground point, the first antenna being a quarter-wavelength antenna adapted to communicate signals in a first frequency band; and a second antenna adapted to be coupled to the first antenna at the feed point and adapted to be grounded at a further ground point, the second antenna being a half-wavelength antenna adapted to communicate signals in a second frequency band.
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9. A device for wireless communication, comprising:
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a wireless transceiver; a printed circuit board (PCB) coupled to the wireless transceiver; a first antenna capacitively coupled to the PCB at a feed point and grounded at a first ground point, the first antenna being a quarter-wavelength antenna conveying first signals to and from the wireless transceiver, the first signals being signals at a first frequency band; a second antenna coupled to the first antenna at the feed point and grounded at one of the first ground point and a second ground point, the second antenna being a half-wavelength antenna communicating second signals with the wireless transceiver, the second signals being signals at a second frequency band; a third antenna coupled to the first antenna at the feed point and grounded at a third ground point, the third antenna being a half-wavelength antenna receiving the second signals and third signals, the third signals being signals at a third frequency band; and one of a filter and a shunt LC circuit coupled between the third antenna and the further ground point filtering the second signals and communicating the third signals with the wireless transceiver. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An antenna arrangement, comprising:
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a first antenna adapted to be capacitively coupled to a PCB at a feed point and grounded at a first ground point, the first antenna being a quarter-wavelength antenna adapted to communicate at a first frequency band; a second antenna coupled to the first antenna at the feed point and adapted to be grounded at one of the first ground point and a second ground point, the second antenna being a half-wavelength antenna adapted to communicate at a second frequency band; a third antenna coupled to the first antenna at the feed point and adapted to be grounded at a third ground point, the third antenna being a half-wavelength antenna adapted to receive signals at the second frequency band and signals at a third frequency band; and one of a filter and a shunt LC circuit coupled between the third antenna and the further ground point filtering signals at the second frequency band and communicating signals at the third frequency band.
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Specification