Multiband antenna
A multi-frequency antenna and frequency band technology, applied in antenna coupling, independent antenna unit combination, antenna grounding switch structure connection, etc., can solve problems such as poor isolation and large antenna size
Inactive Publication Date: 2014-03-26
NANNING FUGUI PRECISION IND CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Although there are multi-frequency antenna devices on the market to realize the functions of multiple antennas, the size of these antennas is relatively large and the isolation is relatively poor, so it is necessary to provide a multi-frequency antenna with a smaller size and better isolation. antenna
Method used
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Embodiment Construction
[0012] Such as Figure 1-2 Shown is a schematic diagram of the multi-frequency antenna 1 in the first embodiment of the present invention. The multi-frequency antenna 1 includes a substrate 10 , a first feeding line 20 , a second feeding line 21 and a ground 30 . The substrate 10 includes a first surface 11 and a second surface 12 . The two feeding lines 20 and 21 are symmetrically disposed on the first surface 11 of the substrate 10 , and the ground 30 is disposed on the second surface 12 of the substrate.
[0013] The substrate 10 includes a substrate body 13 and an extension portion 14 . The extension portion 14 includes a first rectangular plate 141 , a second rectangular plate 142 and a third rectangular plate 143 . The first rectangular plate 141 and the second rectangular plate 142 are parallel to each other, and both are parallel to a side of the substrate body 13 . The third rectangular plate 143 vertically connects the first rectangular plate 141 , the second recta...
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The invention provides a multiband antenna. The multiband antenna comprises a substrate, two feed lines and a ground, wherein the substrate has a first surface and a second surface; the two feed lines are symmetrically arranged on the first surface of the substrate; the ground is arranged on the second surface of the substrate; the substrate further includes a substrate body and an extension part; the extension part includes a first rectangular plate, a second rectangular plate and a third rectangular plate; the first rectangular plate and the third rectangular plate are parallel, and both of them are parallel to one edge of the substrate body; the third rectangular plate is vertically connected with the first rectangular plate, the second rectangular plate and the substrate body at the midpoint of both the first rectangular plate and the second rectangular plate; the two feed lines are respectively arranged on two sides of the third rectangular plate in an L-shaped manner, and comprise first lines and second lines vertical to each other; the two first lines are connected to the first surface of the substrate body; the free ends of the two second lines are separated from each other. The multiband antenna provided by the invention has relatively small size and better isolation degree.
Description
technical field [0001] The invention relates to a multi-frequency antenna. Background technique [0002] With more and more functions of electronic devices, one antenna can no longer meet people's wireless communication needs, and many electronic devices have multiple antennas to receive different wireless signals, such as WiFi, GSM and so on. Although there are multi-frequency antenna devices on the market to realize the functions of multiple antennas, the size of these antennas is relatively large and the isolation is relatively poor, so it is necessary to provide a multi-frequency antenna with a smaller size and better isolation. antenna. Contents of the invention [0003] In view of this, it is necessary to provide a multi-frequency antenna with smaller size and better isolation. [0004] The multi-frequency antenna includes a substrate, two feeding lines and ground. The substrate includes a first surface and a second surface, the two feeding lines are symmetrically...
Claims
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IPC IPC(8): H01Q1/36H01Q1/50H01Q1/52H01Q21/30
Inventor 杜信龙
Owner NANNING FUGUI PRECISION IND CO LTD