Multiband planar built-in radio antenna with inverted-l main and parasitic radiators
First Claim
Patent Images
1. A multi-band radio antenna device for a radio communication terminal, comprising:
- a flat ground substrate;
a flat main radiating element having a radio signal feeding point; and
a flat parasitic element; and
wherein the flat main radiating element is located in the same plane as the flat ground substrate; and
wherein a first elongated portion of the flat main radiating element extends in an L shape away from a side edge of the flat ground substrate, a longer leg of the L shape extending substantially parallel to the side edge.
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Abstract
A multi-band radio antenna device (1) for a radio communication terminal, comprising a flat ground substrate (20), a flat main radiating element (2, 9) having a radio signal feeding point (3), and a flat parasitic element (5, 6). The main radiating 5 element is located adjacent to and in the same plane as said ground substrate, and preferably dielectrically separated therefrom. The antenna device is suitable for being used as a built-in antenna in portable radio terminals, such as a mobile phone (30).
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Citations
34 Claims
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1. A multi-band radio antenna device for a radio communication terminal, comprising:
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a flat ground substrate;
a flat main radiating element having a radio signal feeding point; and
a flat parasitic element; and
wherein the flat main radiating element is located in the same plane as the flat ground substrate; and
wherein a first elongated portion of the flat main radiating element extends in an L shape away from a side edge of the flat ground substrate, a longer leg of the L shape extending substantially parallel to the side edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication terminal devised for multi-band radio communication;
- comprising
a housing;
a user input and output interface; and
a built-in antenna device in the housing, the built-in antenna device including;
a flat ground substrate;
a flat main radiating element having a radio signal feeding point; and
a flat parasitic element; and
wherein the flat main radiating element is located in the same plane as the flat ground substrate; and
wherein a first elongated portion of the flat main radiating element extends in an L shape away from a side edge of the flat ground substrate, a longer leg of the L shape extending substantially parallel to the side edge. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- comprising
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21. A multi-band radio antenna for a radio communication terminal, comprising:
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a flat main radiating element having a radio signal feeding point; and
a flat parasitic element; and
wherein the multi-band radio antenna is connectable to a flat ground substrate by interconnection with the flat parasitic element such that the flat main radiating element is located in the same plane as the flat ground substrate; and
wherein a first elongated portion of the flat main radiating element extends in an L shape away from a side edge of the flat ground substrate, a longer leg of the L shape extending substantially parallel to the side edge.
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22. An integrated multi-band radio antenna and ground substrate device for a radio communication terminal;
- comprising
a flat ground substrate;
a flat main radiating element having a radio signal feeding point; and
a flat parasitic element; and
wherein the flat main radiating element is located in substantially the same plane as the flat ground substrate; and
wherein a first elongated portion of the flat main radiating element extends in an L shape away from a side edge of the flat ground substrate, a longer leg of the L shape extending substantially parallel to the side edge. - View Dependent Claims (23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34)
- comprising
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26. (canceled)
Specification