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Double-frequency dual polarization stacked patch antenna based on microstrip Balun feed and design method thereof

A microstrip balun, patch antenna technology, applied in the field of microwave passive devices, can solve the problems of low isolation, narrow impedance bandwidth, large cross-polarization, etc., to improve isolation, reduce cross-polarization, and reduce cross-polarization. polarized effect

Active Publication Date: 2018-07-27
ANHUI UNIVERSITY
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Problems solved by technology

[0008] The purpose of the present invention is to provide a dual-frequency dual-polarization antenna based on microstrip balun feeding to solve the defects of narrow impedance bandwidth, low isolation and large cross-polarization in the prior art. Stacked patch antenna and its design method to solve the above problems

Method used

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  • Double-frequency dual polarization stacked patch antenna based on microstrip Balun feed and design method thereof
  • Double-frequency dual polarization stacked patch antenna based on microstrip Balun feed and design method thereof
  • Double-frequency dual polarization stacked patch antenna based on microstrip Balun feed and design method thereof

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Embodiment Construction

[0075] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0076] Such as figure 1 , figure 2 with image 3 As shown, the dual-frequency dual-polarization laminated patch antenna based on microstrip balun feeding described in the present invention includes an antenna radiation component and an antenna feed component. The antenna radiation component includes a first resonant unit component and a second resonant unit component.

[0077] The first resonant unit assembly includes an upper microwave dielectric substrate 601, the upper surface of the upper microwave dielectric substrate 601 is etched with a first square patch 101, the second resonant unit assembly includes a middle microwave dielectric substrate 602, and the upper surface of the middle microwave dielectric substrate 602 A secon...

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Abstract

The invention relates to a double-frequency dual polarization stacked patch antenna based on microstrip Balun feed and a design method thereof. Compared with the prior art, the double-frequency dual polarization stacked patch antenna overcomes the defects of a double-frequency dual polarization antenna that the impedance bandwidth is too narrow, the isolation degree is low, and the cross polarization is large. Four rectangular caps are embedded on a first square patch, four feed probes are located in the rectangular caps respectively, and all penetrate through an upper microwave dielectric substrate, a middle microwave dielectric substrate and a lower microwave dielectric substrate, the upper ends of the feed probes are connected with the rectangular caps respectively, the lower ends of two of the feed probes are connected with two output ports of a first microstrip Balun unit respectively, and the lower ends of the other two feed probes are connected with two output ports of a secondmicrostrip Balun unit respectively. The double-frequency dual polarization stacked patch antenna based on the microstrip Balun feed and the design method thereof have the advantages that the relativebandwidth is large, the isolation degree is high, the cross polarization is small, and radiation patterns are symmetric, and are applicable to WiMAX and WLAN wireless communication systems.

Description

technical field [0001] The invention relates to the technical field of microwave passive devices, in particular to a dual-frequency dual-polarization laminated patch antenna based on microstrip balun feeding and a design method thereof. Background technique [0002] As the transmitting and receiving equipment of radio communication, the antenna directly affects the quality of the radio signal. Therefore, the antenna occupies an extremely important position in radio communication. An antenna system with a reasonable structure and excellent performance can minimize the requirements on the entire wireless system, thereby saving system costs and improving the performance of the entire wireless system. Microstrip antenna has become the preferred antenna in some wireless fields because of its low profile, light structure, miniaturization, low loss, and low cost. As early as 1953, Professor G.A.DcDhamps proposed the concept of using the radiation of microstrip lines to make micros...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q5/10H01Q5/20H01Q15/24
CPCH01Q1/38H01Q1/50H01Q1/52H01Q5/10H01Q5/20H01Q15/24Y02D30/70
Inventor 孙玉发余俊南朱浩然李帆
Owner ANHUI UNIVERSITY
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