In-glass antenna element matching
First Claim
Patent Images
1. An in-glass FM antenna system with adjustable impedance for a window, comprising:
- an in-glass FM slot antenna defined by an upper portion, a lower portion and two respective side portions of an electrically conductive member; and
an in-glass impedance matching circuit connected to said in-glass slot antenna, said in-glass impedance matching circuit being located within said in-glass FM slot antenna, wherein said in-glass impedance matching circuit is capable of adjusting the impedance of said in-glass FM slot antenna.
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Abstract
An in-glass antenna system for a window with adjustable impedance for impedance matching. The in-glass antenna system includes an in-glass slot antenna that is defined by an upper portion, a lower portion and two respective side portions. An in-glass impedance matching circuit is connected to the slot antenna, wherein the impedance matching circuit adjusts the impedance of said slot antenna.
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Citations
18 Claims
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1. An in-glass FM antenna system with adjustable impedance for a window, comprising:
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an in-glass FM slot antenna defined by an upper portion, a lower portion and two respective side portions of an electrically conductive member; and
an in-glass impedance matching circuit connected to said in-glass slot antenna, said in-glass impedance matching circuit being located within said in-glass FM slot antenna, wherein said in-glass impedance matching circuit is capable of adjusting the impedance of said in-glass FM slot antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An in-glass FM antenna system with adjustable impedance for a window, comprising:
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an in-glass FM slot antenna comprised at least in part of an in-glass antenna conductive trace that runs substantially parallel with a horizontal portion of said window;
a second in-glass conductive trace connected to said in-glass antenna conductive trace that runs substantially parallel with the horizontal portion of said window for a predetermined distance, said second conductive trace being located within said in-glass FM slot antenna, wherein a first end of said second in-glass conductive trace is grounded and a second end of said second in-glass conductive trace is used as a radio signal transmission line; and
wherein said predetermined distance, the spacing of said second conductive trace from an edge of said window and the width of said second in-glass conductive trace are adjusted to thereby adjust the impedance of said in-glass FM slot antenna.
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9. An in-glass FM antenna system with adjustable impedance for a window, comprising:
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an in-glass FM slot antenna that is comprised at least in part of an in-glass antenna conductive trace that runs substantially parallel with a horizontal portion of said window;
a second in-glass conductive trace connected to said in-glass antenna conductive trace that runs substantially parallel with the horizontal portion of said window for a predetermined distance, said second conductive trace being located within said in-glass FM slot antenna, wherein a first end of said second in-glass conductive trace is grounded and a second end of said second in-glass conductive trace is used as a radio signal transmission line; and
wherein said predetermined distance is adjusted thereby adjusting the impedance of said in-glass FM slot antenna. - View Dependent Claims (10, 11)
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12. An in-glass FM antenna system with adjustable impedance for a window, comprising:
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an in-glass FM slot antenna that is comprised at least in part of an in-glass antenna conductive trace that runs substantially parallel with a horizontal portion of said window;
a second in-glass conductive trace connected to said in-glass antenna conductive trace that runs substantially parallel with the horizontal portion of said window for a predetermined distance, said second conductive trace being located within said in-glass FM slot antenna, wherein a first end of said second in-glass conductive trace is grounded and a second end of said second in-glass conductive trace is used as a radio signal transmission line; and
wherein the spacing of said second in-glass conductive trace from the horizontal portion of said window is adjusted to thereby adjust the impedance of said in-glass FM slot antenna. - View Dependent Claims (13, 14)
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15. An in-glass FM antenna system with adjustable impedance for a window, comprising:
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an in-glass FM slot antenna comprised at least in part of an in-glass antenna conductive trace that runs substantially parallel with a horizontal portion of said window;
a second in-glass conductive trace connected to said in-glass antenna conductive trace that runs substantially parallel with the horizontal portion of said window for a predetermined distance, said second conductive trace being located within said in-glass FM slot antenna, wherein a first end of said second in-glass conductive trace is grounded and a second end of said second in-glass conductive trace is used as a radio signal transmission line; and
wherein the width of said second in-glass conductive trace can be adjusted, thereby adjusting the impedance of said in-glass FM slot antenna. - View Dependent Claims (16, 17)
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18. A method of providing an in-glass FM antenna system with adjustable impedance for impedance matching in a window, comprising:
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providing a FM slot antenna including an in-glass antenna conductive trace that runs substantially parallel with a horizontal plane of said window;
positioning an in-glass second conductive trace within said FM slot antenna;
connecting said in-glass second conductive trace to said in-glass antenna conductive trace that runs substantially parallel with the horizontal plane of said window for a predetermined distance, wherein a first end of said second conductive trace is grounded and a second end of said second conductive trace is used as a radio signal output line; and
adjusting the impedance of said FM slot antenna by adjusting said predetermined distance, the spacing of said in-glass second conductive trace from an edge of said window and the width of said in-glass second conductive trace.
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Specification