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Stable gain trapped wave Vivaldi antenna applied to 5G dual-frequency transmit-receive system

A transceiver system and wave trap technology, which is applied to the connection of the antenna, the antenna grounding switch structure, and the devices that make the antenna work in different frequency bands at the same time, so as to simplify the design difficulty, increase the coupling degree, and increase the coupling strength.

Pending Publication Date: 2022-05-03
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing Vivaldi antenna can not meet the requirements. Therefore, it is of great significance to design a new antenna structure based on the Vivaldi antenna, so that it can use the notch band to load the broadband antenna and realize the multi-frequency filtering effect.

Method used

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  • Stable gain trapped wave Vivaldi antenna applied to 5G dual-frequency transmit-receive system
  • Stable gain trapped wave Vivaldi antenna applied to 5G dual-frequency transmit-receive system
  • Stable gain trapped wave Vivaldi antenna applied to 5G dual-frequency transmit-receive system

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0022] Such as Figure 1-Figure 2 As show...

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Abstract

The invention discloses a stable gain trapped wave Vivaldi antenna applied to a 5G dual-frequency transceiving system, which is a Vivaldi trapped wave antenna working in a 5G millimeter wave frequency band and with the frequency of 24.25-29.5 GHz and 37-43.5 GHz, and is characterized in that a double-slot Vivaldi radiator is fed through a power division structure feed network; broadband matching is realized on the microstrip and slot line transition structure through fan-shaped matching; a pair of bent branch knot loading resonators are symmetrically loaded at the feeder line, so that an in-resistance band double-pole independent adjustable notch band is realized; the position and the bandwidth of the notch band are adjusted on the premise that the protection bands are reserved on the two sides of the dual-passband. According to the invention, the dual-frequency filtering effect is realized by loading the notch band on the basis of the broadband characteristic of the Vivaldi antenna, and the Vivaldi antenna is applied to a 5G millimeter wave frequency band dual-frequency (24.25-29.5 GHz, 37-43.5 GHz) transceiving system to realize signal transmission and reception.

Description

technical field [0001] The invention relates to the technical field of Vivaldi antennas, in particular to a stable gain notch Vivaldi antenna applied to a 5G dual-frequency transceiver system. Background technique [0002] At present, there is a serious shortage of mobile communication spectrum in frequency bands below 3 GHz, which cannot support the rapid improvement of communication speed. Therefore, using the millimeter wave (mmWave) frequency band is a necessary solution to improve communication quality and 5G wireless communication. In order to overcome the high propagation loss that occurs in the mmWave frequency band, antennas with broadband, stable radiation characteristics, and high gain are required. Recently, the electromagnetic spectrum resources are limited, and the demand for frequency bands has increased, resulting in scarcity and austerity. Therefore, eliminating interference between broadband systems and some narrowbands has become the focus of attention t...

Claims

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Application Information

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IPC IPC(8): H01Q1/50H01Q1/38H01Q5/10H01Q5/335H01Q5/50
CPCH01Q1/50H01Q1/38H01Q5/10H01Q5/335H01Q5/50
Inventor 马凯学滕曦慧闫宁宁王勇强
Owner TIANJIN UNIV
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