Defected ground structure (DGS) asymmetrical coplanar waveguide type tri-band antenna

A technology of defective ground structure and coplanar waveguide, which is applied in the field of radio antennas, can solve the problems of antenna mutual interference and low spectrum utilization

Active Publication Date: 2015-11-18
ANHUI UNIVERSITY OF ARCHITECTURE
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Problems solved by technology

However, the erection of multiple antennas has brought many new problems, the most prominent of which are low spectrum utilization and serious mutual interference between antennas

Method used

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  • Defected ground structure (DGS) asymmetrical coplanar waveguide type tri-band antenna
  • Defected ground structure (DGS) asymmetrical coplanar waveguide type tri-band antenna
  • Defected ground structure (DGS) asymmetrical coplanar waveguide type tri-band antenna

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Embodiment Construction

[0040] In order to make the technical means, creative features, work process, use method, purpose and effect of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0041] Such as figure 1 As shown, an asymmetric coplanar waveguide type tri-band antenna with a defective ground structure includes: a substrate 1, a radiation patch unit 2, a metal ground plate 3, and an impedance matching input transmission line 4.

[0042] The substrate is made of polytetrafluoroethylene material, its re...

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Abstract

The invention provides a defected ground structure (DGS) asymmetrical coplanar waveguide type tri-band antenna, which comprises a substrate, a radiation patch unit, a metal grounding plate and an impedance-matching input transmission line. The radiation patch unit, the metal grounding plate and the impedance-matching input transmission line are arranged on the surface of the substrate. The metal grounding plate is provided with a rectangular slot, an inverted right-angled triangular slot and an arc-shaped slot. The radiation patch unit is composed of three radiation patches, namely a homogeneous type fold line combined radiation patch A, a radiation patch C and a non-homogeneous type fold line combined radiation patch C. The bottoms of the three radiation patches are overlapped. The middle parts of the bottoms of the three radiation patches are connected with one end of the impedance-matching input transmission line. The other end of the impedance-matching input transmission line is connected with the bottom end of the substrate. The three radiation patches and the impedance-matching input transmission line are symmetrical relative to the Y-axis of the substrate. The DGS asymmetrical coplanar waveguide type tri-band antenna is very concise, compact and novel in structure, and better in applicability. Meanwhile, the effective area of the radiation patches is increased, and the antenna performance is improved.

Description

Technical field [0001] The invention relates to the technical field of radio antennas, in particular to a defective structured asymmetric coplanar waveguide type three-band antenna. Background technique [0002] With the rapid growth of wireless communication demand, wireless communication technology has achieved rapid development, and new wireless communication technologies and wireless communication frequency bands continue to appear. At present, 3G / 4G wireless communication systems, Bluetooth technology, Global Interoperability for Microwave Access (WIMAX), and wireless local area network systems (WLAN) all use different wireless spectrums. In order to solve the communication problem of different wireless spectrums, multiple antennas are generally set up on the system equipment. However, setting up multiple antennas brings many new problems. The most prominent ones are low spectrum utilization and serious interference between antennas. [0003] Asymmetrical coplanar waveguide ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/28
Inventor 吕虹夏新升于永林华志祥吴东升平兰兰
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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