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A 2.4/5ghz Dual-band Omnidirectional Antenna Suitable for Wireless Local Area Network

A wireless local area network and omnidirectional antenna technology, applied in the field of 2.4/5GHz dual-band omnidirectional antenna, can solve the problems of large size at low frequency and large ohmic loss at high frequency of microstrip patch antenna, and achieve small return loss and ohmic loss. Small, easy to design and integrate effects

Active Publication Date: 2016-03-02
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the size of the microstrip patch antenna is large at low frequencies and the bottleneck of high-frequency ohmic loss limits its further development.

Method used

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  • A 2.4/5ghz Dual-band Omnidirectional Antenna Suitable for Wireless Local Area Network
  • A 2.4/5ghz Dual-band Omnidirectional Antenna Suitable for Wireless Local Area Network
  • A 2.4/5ghz Dual-band Omnidirectional Antenna Suitable for Wireless Local Area Network

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Embodiment Construction

[0023] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0024] like Figure 1-3 As shown, the 2.4 / 5GHz dual-frequency omnidirectional antenna suitable for wireless local area network is composed of a substrate-integrated coaxial cable 1 and a rectangular dielectric resonator 2. The substrate-integrated coaxial cable 1 is processed by a standard printed circuit board process. The size of the dielectric resonator 2 is calculated from the operating frequency. The substrate integrated coaxial line 1 is composed of an upper surface metal 11, a lower surface...

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Abstract

The invention discloses a 2.4 / 5 GHz double-frequency omni-directional antenna suitable for a wireless local area network. The antenna comprises a substrate integrated coaxial line serving as a feeder line and a dielectric resonator with a center opening. One end of the substrate integrated coaxial line is a feed port and the other end of the substrate integrated coaxial line passes through the center opening of the dielectric resonator, so that a monopole antenna is formed. According to the double-frequency antenna, the wave standing character and the omni-directional radiation character are good and the low cross polarization character and the high-radiation efficiency are achieved. The size of a monopole and the size of the dielectric resonator are changed, so that the antenna operates at two different frequency points.

Description

technical field [0001] The invention relates to a 2.4 / 5GHz dual-frequency omnidirectional antenna suitable for a wireless local area network, belonging to the technical field of antennas. Background technique [0002] In the field of wireless local area network (Wireless Local Access Network, WLAN), in order to meet the requirements of reducing antenna size and electromagnetic interference, and covering multiple communication frequency bands at the same time, dual-band and multi-band antennas have emerged as the times require. At present, the antenna mainly used in WLAN is a microstrip patch antenna. However, the size of the microstrip patch antenna is large at low frequencies and the bottleneck of high-frequency ohmic loss limits its further development. Contents of the invention [0003] Purpose of the invention: In order to realize the dual-frequency characteristics of the antenna and the broadband characteristics of the high-frequency point, and reduce the ohmic loss ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q5/10H01Q5/20H01Q9/30H01Q13/08
Inventor 王海明张小伟余晨洪伟
Owner SOUTHEAST UNIV
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