MICROSTRIP ANTENNA FOR RF RECEIVER
First Claim
Patent Images
1. An antenna arrangement for a RF (radio frequency) signal, comprising:
- printed circuit board having first and second opposed sides;
a ground plane formed on the first side of the printed circuit board;
a circuit disposed on the second side of the printed circuit board; and
a flat, polygonal shaped spiral member disposed on the second side of the printed circuit board, the polygonal shaped spiral member having a first free end and a second connection end connected to the circuit, the spiral member having a plurality of straight portions which are interconnected to form a plurality of corners.
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Abstract
An antenna arrangement for a RF (radio frequency) signal, has: printed circuit board having first and second opposed sides; a ground plane formed on the first side of the printed circuit board; a circuit disposed on the second side of the printed circuit board; and a flat, polygonal shaped spiral member disposed on the second side of the printed circuit board, the polygonal shaped spiral member a first free end a second connection end connected to the circuit, the spiral member having a plurality of straight portions which are interconnected to form a plurality of corners.
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Citations
27 Claims
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1. An antenna arrangement for a RF (radio frequency) signal, comprising:
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printed circuit board having first and second opposed sides;
a ground plane formed on the first side of the printed circuit board;
a circuit disposed on the second side of the printed circuit board; and
a flat, polygonal shaped spiral member disposed on the second side of the printed circuit board, the polygonal shaped spiral member having a first free end and a second connection end connected to the circuit, the spiral member having a plurality of straight portions which are interconnected to form a plurality of corners. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. (canceled)
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13. (canceled)
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18. A remote control arrangement comprising:
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a rectangular spiral antenna having a free end and a connection end;
a circuit operatively connected to the connection end and adapted to operate a device in response to a signal being received by the antenna; and
a circuit board on which the antenna and the circuit are disposed, and wherein the printed circuit board is disposed in a door of a vehicle. - View Dependent Claims (14, 15, 16, 19, 20)
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21. A remote control arrangement comprising:
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a rectangular spiral antenna having a free end and connection end;
a circuit operatively connected to the connection end and adapted to operate a device in response to a signal being received by the antenna;
a circuit board on which the antenna and the circuit are disposed; and
a transmitter which is configured to transmit a signal to the antenna, the transmitter being disposed with a wheel of a vehicle and configured to be responsive to a pressure sensor which senses the pneumatic pressure in a tire on the wheel, and to transmit a signal indicative of the sensed pressure, to the antenna. - View Dependent Claims (17)
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22. A method of improving reception of a rectangular spiral antenna which is disposed on a circuit board and adapted to receive a signal from a remote transmitter, comprising:
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providing sharp corners at the intersections which interconnect straight portions of the rectangular spiral antenna;
disposing the antenna and a circuit on the same side of a circuit board, and connecting an end of the antenna to the circuit to minimize the distance between the antenna and the circuit; and
disposing a ground plane on a side of the circuit board which is opposite to the side on which the antenna and the circuit are disposed. - View Dependent Claims (23, 26)
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24. (canceled)
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25. (canceled)
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27. (canceled)
Specification