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Gain band-notched filter antenna

A filter antenna and gain band technology, which is applied in the field of filter antenna with gain band trapping characteristics, can solve the problems of low complexity and achieve the effects of simple manufacturing process, good application prospects, and simple structure

Inactive Publication Date: 2017-07-21
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design method has low complexity and is beneficial to solve the problem of beam reconfigurable antenna design in small devices. At the same time, the filtering function can be realized by adjusting the inherent radiation pattern of the antenna without adding additional resonators and parasitic elements.

Method used

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  • Gain band-notched filter antenna
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  • Gain band-notched filter antenna

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0024] Control attached figure 1 , figure 2 , the invention discloses a filter antenna with gain band notch characteristics, which includes a circular dielectric substrate 1 . The upper surface of the dielectric substrate 1 is provided with a groove line 2, a first disturbance branch 3 and a second disturbance branch 4; the groove line 2 is a circular arc with a certain width and the same center as the dielectric substrate 1, in the present invention , the length of the slot line 2 is 1.10-1.75 working wavelengths. The shape and size of the first disturbance branch 3 and the second disturbance branch 4 are the same, both are perpendicular to the tangent line of the groove line 2 and intersect with the groove line 2; Central axis symmetry.

[0025] In the present invention, by introducing the first disturbance branch 3 and the second disturbanc...

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Abstract

The invention discloses a gain band-notched filter antenna and belongs to the microwave technical field. The gain band-notched filter antenna of the present invention comprises a circular dielectric substrate as well as a slot line, a microstrip line, a first disturbance branch and a second disturbance branch which are all arranged on the circular dielectric substrate. According to the gain band-notched filter antenna of the invention, under a premise that an additional resonator is not adopted, and the continuity of the impedance and frequency response of the antenna is not damaged, a gain band-notched property at a specific frequency and in a specific angular direction can be realized through controlling the excitation degree of even-order intrinsic radiation modes. The gain band-notched filter antenna of the invention has the advantages of simple structure, small size, low production cost, and the like, and has a wide application prospect in the wireless communication field.

Description

technical field [0001] The invention relates to a gain band trap characteristic filter antenna, which belongs to the field of microwave technology. Background technique [0002] The rapid development of wireless communication technology has put forward higher requirements for modern microwave and wireless communication systems. It is necessary for the components of the system to be compact, low-cost, low-power and more importantly, not affected by the surrounding environment. [0003] Broadband design has become a hot area of ​​antenna design. In the mobile communication system, the channel capacity of wireless communication is getting bigger and bigger, the transmission rate is getting higher and higher, and the service mode is getting more and more flexible. At the same time, more and more electronic devices that meet different needs are concentrated on the same carrier, forming a complex electromagnetic environment, and the mutual interference between different antennas ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01P1/20
CPCH01Q1/38H01P1/20H01Q1/50H01Q1/52
Inventor 吕文俊王雷杰王生光李笑乾许璐王东东刘超男王康朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM