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Planar monopole and substrate integrated waveguide groove-based multi-band antenna

A substrate-integrated waveguide and monopole antenna technology, applied in the direction of antenna grounding switch structure connection, radiation element structure, etc., can solve the problem of narrow impedance bandwidth and achieve the effect of solving the separation problem

Active Publication Date: 2018-04-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0004] The traditional cylindrical monopole antenna has the characteristics of horizontal omnidirectional radiation, but its impedance bandwidth is very narrow, which limits its application

Method used

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  • Planar monopole and substrate integrated waveguide groove-based multi-band antenna
  • Planar monopole and substrate integrated waveguide groove-based multi-band antenna
  • Planar monopole and substrate integrated waveguide groove-based multi-band antenna

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0017] This embodiment provides a multi-band antenna based on planar monopole and substrate integrated waveguide slotting, its structure is as follows Figure 4 As shown, it includes a planar monopole antenna, a substrate-integrated waveguide slot antenna, a low-pass filter and a microstrip feeder; it is characterized in that the substrate-integrated waveguide slot antenna consists of a substrate-integrated waveguide and a transmission terminal along the center Two right-angled triangular slots are line-symmetrically opened, and the microstrip feeder is fed to the center of the wide side of the substrate integrated waveguide slotted antenna through a trapezoidal transition structure. The low-pass filter is connected to the microstrip feeder, and the microstrip feeder passes through the The low-pass filter is fed to the planar monopole antenna,...

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Abstract

The invention belongs to the technical field of wireless communication, and provides a planar monopole and substrate integrated waveguide groove-based microwave and millimeter-wave multi-band antenna.The multi-band antenna comprises a planar monopole antenna, a substrate integrated waveguide groove antenna, a low pass filter and a microstrip feeder and is characterized in that the substrate integrated waveguide groove antenna is formed by symmetrically forming two right-triangle grooves in a transmission terminal along a central line by a substrate integrated waveguide, the microstrip feederis fed to a center of a wide wall of the substrate integrated waveguide groove via a transition structure, the low pass filter is connected to the microstrip feeder, and the microstrip feeder is fed to the planar monopole antenna via the low pass filter. By means of low cylinder characteristic of the low pass filter and the cutoff characteristic of the substrate integrated waveguide, separation ofa microwave frequency and a millimeter-wave frequency is completed, and separated design of the microwave antenna and the millimeter-wave antenna is achieved; and the multi-band antenna is compact instructure and low in cost, is compatible with a traditional printed circuit process and is easy to process.

Description

technical field [0001] The invention belongs to the technical field of wireless communication and relates to a microwave and millimeter wave multi-band antenna, in particular to a microwave and millimeter wave multi-band antenna based on planar monopole and substrate integrated waveguide slotting. Background technique [0002] With the rapid development of the Internet and multimedia technologies, various terminal devices have a great demand for higher-speed wireless communication technologies. A higher rate means a larger bandwidth, and a direct way to increase the bandwidth is to increase the operating frequency from the microwave frequency to the millimeter wave frequency band; in the microwave frequency band, various types of antennas are basically implemented using microstrips; In the wave frequency band, due to the serious loss of the microstrip antenna, the efficiency of the antenna is reduced, and the size of the microstrip antenna is also very small, which requires ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/36
CPCH01Q1/36H01Q1/50
Inventor 张勇吴成凯徐锐敏延波黎雨坤
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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