Inversed-F type antenna

An antenna and metal sheet technology, applied in the resonant antenna, radiating element structure and other directions, can solve the problems of efficiency loss, increase the complexity of the antenna, and insufficient to meet the

Inactive Publication Date: 2006-12-27
连展科技电子(昆山)有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the above-mentioned inverted-F antenna designs, the first design utilizes the structure of multiple paths in order to increase the bandwidth, making the structure more complex, which in turn causes efficiency loss and increases the complexity of antenna manufacturing; although the second design structure is relatively Simple, but its bandwidth is small, not enough to meet the needs of multi-frequency operation of today's handheld products

Method used

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Embodiment 3

[0029] FIG. 3 shows an embodiment 3 of the inverted-F antenna of the present invention, which includes: a radiating metal sheet 30 having a first sub-radiating metal sheet 301, a feeding point 302, and a The second sub-radiation metal sheet 303 and a short-circuit point 304; a ground plane 34, a dielectric substrate 35, a feed-in metal sheet 36 and a short-circuit metal sheet 37. One of the first sub-radiating metal sheets 301 has a starting end and an end. The starting end is located at an edge of the radiating metal sheet, and the end extends in a spiral manner to form a first path, and the end is close to the starting end And is an open circuit; the feeding point 302 is located near the starting end of the first sub-radiating metal sheet; the second sub-radiating metal sheet 303 has a starting end and an end, wherein the starting end and the first sub-radiating metal sheet The start end of 30 is connected, and the end extends along the inner edge of the first sub-radiating meta...

Embodiment 5

[0032] Fig. 5 shows another embodiment 5 of the inverted-F antenna of the present invention, which includes: a radiating metal sheet 50 having a first sub-radiating metal sheet 501, a feeding point 502, A second sub-radiation metal sheet 503 and a short-circuit point 504, a ground plane 54, a dielectric substrate 55, a feed-in metal sheet 56 and a short-circuit metal sheet 57. The first sub-radiating metal sheet 501 and the second sub-radiating metal sheet 503 respectively extend in a spiral manner to form a first and a second path for generating the first (low frequency) and second (low frequency) of the antenna, respectively. (Sub-high frequency) and third (high frequency) operating modes, where the second path is surrounded by the first path, and the feed point 502 and the short-circuit point 504 are respectively located in the first sub-radiating metal sheet The starting end of 501 and the end of the second sub-radiating metal sheet 503, the first sub-radiating metal sheet 501...

Embodiment 6

[0033] Fig. 6 shows another embodiment 6 of the inverted-F antenna of the present invention, which includes: a radiating metal sheet 60 having a first sub-radiating metal sheet 601, a feeding point 602, A second sub-radiation metal sheet 603 and a short-circuit point 604, a ground plane 64, a dielectric substrate 65, a feed-in metal sheet 66 and a short-circuit metal sheet 67. The first sub-radiating metal sheet 601 and the second sub-radiating metal sheet 603 respectively extend in a spiral manner to form a first and a second path for generating the first (low frequency) and second (low frequency) of the antenna, respectively. (Sub-high frequency) and third (high frequency) operating modes, where the second path is surrounded by the first path, and the feed point 602 and the short-circuit point 604 are respectively located in the first sub-radiating metal sheet The start end of 601 and the end of the second sub-radiation metal sheet 603. The second sub-radiation metal sheet 603 o...

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Abstract

The related reverse-F antenna comprises: a grounding surface, a base, a feed-in metal piece, a short-circuit metal piece, and a radiation metal piece with a first / second piece and a feed-in point and a short-circuit point, wherein both pieces curled extend to form two paths for three operation modes, two points are on the start end of the first piece and the back end of the second piece. This invention uses the first / second mode from the first piece with the third mode from the second piece to meet frequency-band request of GSM900, DCS1800 and PCS1900.

Description

【Technical Field】 [0001] The invention relates to an inverted-F antenna, especially an antenna applied to wireless communication products. 【Background technique】 [0002] With the rapid development of wireless communication in recent years, the requirements for products have gradually increased. In addition to achieving the specifications of electrical characteristics, the appearance and practical convenience are gradually diversified, so the miniaturized built-in type Antennas have become the mainstream of wireless products recently. In order to achieve size reduction, and the antenna characteristics must still maintain multi-band or broadband characteristics, the design of the built-in antenna tends to be complicated and difficult to make specifications. Adjustment. Therefore, how to use effective antenna parameters in a limited environment and space to reduce the complexity of the design and achieve the required specifications and flexibility of the product has become an impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q9/04
Inventor 林圣智谢芳旻邱宗文萧富仁
Owner 连展科技电子(昆山)有限公司
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