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Duplex filtering antenna based on central short circuit T-shaped resonator

A filter antenna and resonator technology, which is applied to the antenna grounding device, the structural connection of the antenna grounding switch, the structural form of the radiating element, etc. Effect

Active Publication Date: 2018-05-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In such a system, both the antenna and the transceiver need an external matching network to match the feeder, which makes the entire system bulky and heavy, especially the loss caused by the feeder and matching network will greatly reduce the transmission efficiency of the signal

Method used

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  • Duplex filtering antenna based on central short circuit T-shaped resonator
  • Duplex filtering antenna based on central short circuit T-shaped resonator
  • Duplex filtering antenna based on central short circuit T-shaped resonator

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Embodiment

[0031] This embodiment provides a duplex filter antenna based on a center short-circuit T-shaped resonator, the overall structure is as follows figure 1 As shown, it includes an upper dielectric substrate (13), a lower dielectric substrate (14), and a stacked square parasitic patch (1) printed on the upper surface of the upper dielectric substrate (13), such as figure 2 Shown; The square microstrip patch (2) printed on the upper surface of the lower dielectric substrate (14) is respectively loaded on the transmitting channel feed network and the receiving channel feed network on both sides of the square microstrip patch (2), and The transmitting channel feeding network is distributed on the same side of the square microstrip patch (2) and the transmitting port (6) connected to the transmitting channel feeding network is distributed on the same side as the receiving channel feeding network on the square microstrip patch (2). side and the receiving port (10) connected to the re...

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Abstract

The invention discloses a duplex filtering antenna based on a central short circuit T-shaped resonator, and the antenna comprises an upper dielectric substrate, a lower dielectric substrate, stacked square parasitic patches printed on the upper surface of the upper dielectric substrate, a square microstrip patch printed on the upper surface of the lower dielectric substrate, a transmitting channelfeed network and a receiving channel feed network which are loaded at two sides of the square microstrip patch, a transmitting port which is disposed at the same side as the transmitting channel feednetwork and is connected with the transmitting channel feed network, a receiving port which is disposed at the same side as the receiving channel feed network and is connected with the receiving channel feed network, and a reflection grounding plate which is printed on the lower surface of the lower dielectric substrate. The central short circuit T-shaped resonator is introduced as a feed network, and the stacked patches serve as a radiation unit. The antenna has a function of frequency division duplex, can achieve the simultaneous transmitting and receiving, and the electromagnetic weaves employed by the transmitting and receiving operations of the antenna are linearly polarized electromagnetic waves.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a duplex filter antenna based on a central short-circuit T-shaped resonator. Background technique [0002] As a device for transmitting and receiving electromagnetic waves, an antenna is an indispensable key component in a wireless communication system. The antenna itself is reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna. In the early wireless communication systems, the antenna needs to be raised by a bracket to obtain a long communication distance. Due to the large volume and weight of the wireless transceiver, in order to reduce the weight of the elevated antenna, the antenna and the transceiver are usually separated. Such as radio frequency switch, circulator, directional coupler and duplexer, etc. to separate the signal transmitted to the transmit channel of the antenna and the signal of the receive ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 黎定豪谢泽明
Owner SOUTH CHINA UNIV OF TECH
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