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Double-frequency antenna

A dual-frequency antenna and radiating part technology, which is applied in directions such as antennas, devices that make antennas work in different frequency bands at the same time, and radiating element structures.

Inactive Publication Date: 2014-01-22
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to design a microstrip antenna with a smaller area in the frequency range that meets different wireless communication standards is a big challenge, and it is also an urgent goal for the industry to improve.

Method used

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Embodiment Construction

[0035] see figure 1 , is an overall schematic diagram of the dual-band antenna 100 in an embodiment of the present invention. In this embodiment, the dual-band antenna 100 is disposed on the substrate, and includes a feeding portion 10 , a radiator 20 and a grounding portion 30 . The feed-in portion 10 is square and is disposed on the first surface of the substrate for feeding in electromagnetic wave signals.

[0036] see figure 2 , is a partially enlarged schematic diagram of the dual-band antenna 100 in an embodiment of the present invention. In this embodiment, the radiator 20 is connected to the feed-in part 10 and is disposed on the first surface of the substrate for radiating electromagnetic wave signals, including an inverted F-shaped radiator 200 , a C-shaped radiator 300 and a parasitic microstrip line 204 .

[0037] The inverted F-shaped radiating portion 200 includes a first radiating portion 201 , a second radiating portion 202 parallel to each other, and a thi...

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PUM

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Abstract

The invention provides a double-frequency antenna. The double-frequency antenna comprises a feed part, a radiating body and a grounding part which are arranged on the first surface of a substrate, wherein the feed part is used for feeding an electromagnetic wave signal; the radiating body is connected with the feed part, is used for radiating the electromagnetic wave signal and comprises an inverted F-shaped radiating part, a C-shaped radiating part and a parasitic microstrip line; the inverted F-shaped radiating part comprises a first radiating part and a second radiating part which are mutually parallel as well as a third radiating part which is vertically connected with the first radiating part and the second radiating part; the third radiating part comprises a closed section and an opening section; the C-shaped radiating part is connected with the opening section of the third radiating section, and the opening of the C-shaped radiating part faces to the second radiating part; the parasitic microstrip line is of a strip shape and is vertically connected with the second radiating part; and the grounding part is connected with the radiating body. The double-frequency antenna can cover two frequency bands.

Description

technical field [0001] The invention relates to antennas, in particular to a dual-frequency antenna. Background technique [0002] The field of wireless communication has different frequency ranges for different standard applications. Among them, the frequency bands covered by the World Interoperability for Microwave Access (WiMAX) standard are 2.3GHz~2.4GHz, 2.496GHz~2.690GHz and 3.3GHz~ 3.8GHz, and the frequency bands covered by the Wireless Fidelity (Wi-Fi) standard are 2.412GHZ-2.472GHZ and 5.170GHz-5.825GHz. In the prior art, the frequency radiated by an antenna with one structure can only cover a certain single frequency band. To achieve multi-band coverage, multiple antennas with different structures must be used to cover multiple frequency bands. In this way, the area occupied by the antenna in the wireless communication device is bound to increase, which is not in line with the development trend of miniaturization of wireless communication devices today. Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q5/00H01Q13/08H01Q5/20H01Q5/321H01Q5/328
Inventor 杜信龙张瑞福
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD