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Multiband Antenna Based on Planar Monopole and Substrate Integrated Waveguide Slot

A substrate-integrated waveguide and monopole antenna technology, which is applied in the direction of the connection of the antenna grounding switch structure and the structural form of the radiating element, can solve problems such as narrow impedance bandwidth, and achieve the effect of solving the separation problem

Active Publication Date: 2021-04-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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AI Technical Summary

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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  • Multiband Antenna Based on Planar Monopole and Substrate Integrated Waveguide Slot
  • Multiband Antenna Based on Planar Monopole and Substrate Integrated Waveguide Slot
  • Multiband Antenna Based on Planar Monopole and Substrate Integrated Waveguide Slot

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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 microwave and millimeter wave multi-band antenna based on a planar monopole and a substrate-integrated waveguide slot; including a planar monopole antenna, a substrate-integrated waveguide slot antenna, and a low-pass filter and a microstrip feeder; it is characterized in that the substrate integrated waveguide slotted antenna is composed of a substrate integrated waveguide and two right-angled triangular slots arranged symmetrically along the center line at the transmission terminal, and the microstrip feeder is fed to the In the center of the wide wall of the substrate-integrated waveguide slotted antenna, the low-pass filter is connected to a microstrip feeder, and the microstrip feeder is fed to the planar monopole antenna through the low-pass filter. The present invention utilizes the low barrel characteristics of the low-pass filter and the cut-off characteristics of the substrate integrated waveguide to complete the separation of microwave and millimeter wave frequencies, and realize the separation design of microwave and millimeter wave antennas; Process compatible, easy to process and low cost.

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 Patents(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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