Capacitively coupled plated antenna
First Claim
1. A wireless communications device comprising:
- a housing;
a transmitting and receiving antenna built into the housing, said antenna comprising a first antenna element with a first geometric shape and a second antenna element with a second geometric shape;
receive and transit circuitry within the housing for receiving and transmitting radio signals via the antenna; and
a coupling plate within the housing connected to the receive and transmit circuitry and spaced from the first antenna element by a distance h1, wherein received and transmitted radio signals are transferred between the antenna and the receive and transmit circuitry only by capacitive coupling between the first antenna element and the coupling plate; and
wherein said distance h1, said first geometric shape, and said second geometric shape are selected so as to match an impedance of said antenna to said receive and transmit circuitry.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna is provided for use in a wireless communications device having receive and transmit circuitry within a housing for receiving and transmitting radio signals. The antenna is built into the housing of the wireless communications device. A coupling plate is provided within the housing for transferring received and transmitted radio signals between the antenna and the receive and transmit circuitry. The coupling plate is connected to the receive and transmit circuitry and spaced from the antenna by a distance h1, such that the received and transmitted radio signals are transferred between the antenna and the receive and transmit circuitry only by capacitive coupling between the antenna and the coupling plate.
26 Citations
19 Claims
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1. A wireless communications device comprising:
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a housing;
a transmitting and receiving antenna built into the housing, said antenna comprising a first antenna element with a first geometric shape and a second antenna element with a second geometric shape;
receive and transit circuitry within the housing for receiving and transmitting radio signals via the antenna; and
a coupling plate within the housing connected to the receive and transmit circuitry and spaced from the first antenna element by a distance h1, wherein received and transmitted radio signals are transferred between the antenna and the receive and transmit circuitry only by capacitive coupling between the first antenna element and the coupling plate; and
wherein said distance h1, said first geometric shape, and said second geometric shape are selected so as to match an impedance of said antenna to said receive and transmit circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless communications device for transmitting and receiving radio frequency (RF) signals, the wireless communications device comprising:
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a housing;
receive and transmit circuitry within the housing for receiving and transmitting RF signals;
only one reception and transmission antenna, said antenna built into the housing, wherein said antenna comprises a first antenna element with a first geometric shape and a second antenna element with a second geometric shape; and
a coupling plate within the housing connected to the receive and transmit circuitry and spaced from the first antenna element by a distance h1, wherein received and transmitted RF signals are transferred between the antenna and the receive and transmit circuitry only by capacitive coupling between the first antenna element and the coupling plate; and
wherein said distance h1, said first geometric shape, and said second geometric shape are selected so as to match an impedance of said antenna to said receive and transmit circuitry. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification