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Coaxial waveguide filtering antenna with adjustable frequency

A coaxial waveguide and filter antenna technology, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve problems such as unstable impedance characteristics, and achieve simple and reliable structure, good application prospects, and low loss Effect

Pending Publication Date: 2021-08-06
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In general, in the existing work, there are many studies on the realization of frequency tunable filter antennas, but the impedance characteristics in the adjustable range of some work are unstable

Method used

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  • Coaxial waveguide filtering antenna with adjustable frequency
  • Coaxial waveguide filtering antenna with adjustable frequency
  • Coaxial waveguide filtering antenna with adjustable frequency

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0025] see Figure 1 to Figure 3 As shown, the frequency-tunable coaxial waveguide filter antenna provided in this embodiment includes a standard WR-90 waveguide 1, one end of the standard WR-90 waveguide 1 is provided with a waveguide excitation port 9, and the other end is provided with an antenna The radiation port 10, the upper surface of the standard WR-90 waveguide 1 is respectively vertically inserted with the first tuning screw 2, the second tuning screw 3, the third tuning screw 4 and the fourth tuning screw 5, the first tuning screw The screws 2, the second tuning screws 3, the third tuning screws 4 and the fourth tuning screws 5 are arranged at intervals in the direction from one end to the other end of the standard WR-90 waveguide 1 and arranged in a row, and...

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Abstract

The invention discloses a coaxial waveguide filtering antenna with adjustable frequency. The coaxial waveguide filtering antenna comprises a standard WR-90 waveguide, wherein a waveguide excitation port and an antenna radiation port are formed in the two ends of the standard WR-90 waveguide respectively, a first tuning screw, a second tuning screw, a third tuning screw and a fourth tuning screw which are arranged in a row in the direction from one end to the other end of the standard WR-90 waveguide are vertically inserted into the upper surface of the standard WR-90 waveguide, the insertion depths of the first tuning screw and the fourth tuning screw are the same, the insertion depths of the second tuning screw and the third tuning screw are the same, a fifth tuning screw, a sixth tuning screw and a seventh tuning screw which are on the same straight line with the first tuning screw, the second tuning screw, the third tuning screw and the fourth tuning screw are vertically inserted into the lower surface of the standard WR-90 waveguide, the fifth tuning screw is located between the first tuning screw and the second tuning screw, the sixth tuning screw is located between the second tuning screw and the third tuning screw, the seventh tuning screw is located between the third tuning screw and the fourth tuning screw, and the insertion depths of the fifth tuning screw and the seventh tuning screw are the same. The center frequency of the antenna can be adjusted by adjusting the insertion depths of the screws, and the coaxial waveguide filtering antenna has the advantages of being simple and reliable in structure, convenient to process, low in loss, high in performance and the like.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a coaxial waveguide filter antenna with adjustable frequency. Background technique [0002] Due to the rapid development of wireless communication systems, the performance requirements of various microwave devices are getting higher and higher. Antenna is an indispensable microwave device in a communication system, and it is a research hotspot to integrate more functions. The reconfigurability of microwave devices is of great help to production design. The frequency reconfigurable antenna can reduce the design and processing cost of the antenna, and has great economic benefits. In addition, the coaxial waveguide resonator has a great advantage in loss compared with the microstrip resonator due to its high unloaded quality factor. Designing a frequency-tunable coaxial waveguide filter antenna has great application value. Many scholars have proposed the method of realizing fre...

Claims

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Application Information

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IPC IPC(8): H01Q5/28H01Q23/00
CPCH01Q5/28H01Q23/00
Inventor 陈付昌向凯燃
Owner SOUTH CHINA UNIV OF TECH
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