Compact multiband inverted-F antenna
First Claim
1. An antenna, comprising:
- a first arm with a first end;
a second arm, substantially parallel to, co-planar with, and separated from the first arm along a length of the first arm and the second arm, and with a first end that is substantially aligned with the first end of the first arm;
a conducting bridge, electrically connected to the first end of the first arm and the first end of the second arm; and
a feed element, electrically connected to a middle point of the second arm, for connection to an RF feed on a circuit board,wherein the first arm, the second arm and the conducting bridge are mechanically unsupported by the circuit board while being designed for RF signal coupling with circuits on the circuit board, and wherein at least one of the first arm, the second arm, and the conducting bridge, are formed so as to be supported by a supporting structure that is mechanically separate from the support of the circuit board.
5 Assignments
0 Petitions
Accused Products
Abstract
A compact multiband Inverted-F antenna (110) that has a compact form factor and is particularly suited for manufacturability and inclusion into small form-factor devices. The Inverted-F Antenna (110) includes a first arm (150) and a substantially parallel second arm (152) connected by a conductive bridge (206). An RF feed that has an RF contact (126) and a ground contact (124) is attached to a middle portion of the second arm (150). The Inverted-F antenna (110) is suitable for mounting on an external face of a non-conductive support (112). The RF feed (150, 152) extends through the non-conductive support to facilitate electrical connection to RF circuits (108). The Inverted-F Antenna (110) has a three band RF characteristic (300), with the upper two bands chosen to form a single, continuous RF band (304).
18 Citations
16 Claims
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1. An antenna, comprising:
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a first arm with a first end; a second arm, substantially parallel to, co-planar with, and separated from the first arm along a length of the first arm and the second arm, and with a first end that is substantially aligned with the first end of the first arm; a conducting bridge, electrically connected to the first end of the first arm and the first end of the second arm; and a feed element, electrically connected to a middle point of the second arm, for connection to an RF feed on a circuit board, wherein the first arm, the second arm and the conducting bridge are mechanically unsupported by the circuit board while being designed for RF signal coupling with circuits on the circuit board, and wherein at least one of the first arm, the second arm, and the conducting bridge, are formed so as to be supported by a supporting structure that is mechanically separate from the support of the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An RF component, comprising:
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a first arm with a first end; a second arm, substantially parallel to, co-planar with, and separated from the first arm along a length of the first arm and the second arm, and with a first end that is substantially aligned with the first end of the first arm; a conducting bridge, electrically connected to the first end of the first arm and the first end of the second arm; a non-conductive support, mechanically connected to at least one of the first arm, the second arm and the conducting bridge; and a feed element, electrically connected to a middle point of the second arm, for connection to an RF feed on a circuit board, wherein the first arm, the second arm and the conducting bridge are mechanically unsupported by the circuit board while being designed for RF signal coupling with the RF feed on the circuit board, and wherein at least one of the first arm, the second arm, and the conducting bridge, are formed so as to be supported by a supporting structure that is mechanically separate from the support of the circuit board. - View Dependent Claims (12, 13, 14, 15)
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16. A wireless device, comprising:
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a circuit board comprising at least one of an RF transmission circuit, an RF receiving circuit, audio processing circuits and controller circuits; and an inverted-F antenna, comprising; a first arm with a first end; a second arm, substantially parallel to, co-planar with, and separated from the first arm along a length of the first arm and the second arm, and with a first end that is substantially aligned with the first end of the first arm; a conducting bridge, electrically connected to the first end of the first arm and the first end of the second arm; and a feed element, electrically connected to a middle point of the second arm, for connection to an RF feed on a circuit board, wherein the first arm, the second arm and the conducting bridge are mechanically unsupported by the circuit board while being designed for RF signal coupling with circuits on the circuit board, and wherein at least one of the first arm, the second arm, and the conducting bridge, are formed so as to be supported by a supporting structure that is mechanically separate from the support of the circuit board.
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Specification