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A Novel Dual Frequency Slot Resonant Antenna

A resonant antenna and slot technology, which is applied to slot antennas, antennas, and devices that enable antennas to work in different bands at the same time, to achieve the effects of flexible frequency adjustment, compact circuit structure, and low cost

Active Publication Date: 2019-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the portable device does not have the space to deploy the radiation structure required by the multi-frequency antenna, the existing design methods of these antennas will encounter great challenges

Method used

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  • A Novel Dual Frequency Slot Resonant Antenna
  • A Novel Dual Frequency Slot Resonant Antenna
  • A Novel Dual Frequency Slot Resonant Antenna

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with specific embodiments.

[0031] Such as figure 1 As shown, the dual-frequency slot resonant antenna 1 of the present invention includes a double-sided PCB circuit copper-clad board and a capacitive matching circuit. It is formed by lamination and connection. There is a notch slot on both sides of the double-sided PCB circuit copper-clad board. A set of pads 8 are arranged beside the two notch slots. The two sets of pads 8 in the two notch slots are respectively connected to their respective capacitive matching circuit.

[0032] The specific implementation of the present invention is mainly to lay a layer of copper skin 2 and 4 on both sides of a dielectric board 3 to form a PCB board, and open two circular gaps 5 on both symmetrical sides of the PCB board, and the circular gaps 5 pass through the rectangular gap 6 Connected to the edge of the PCB board. Welding pads 8 are provided on the same PC...

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Abstract

The invention discloses a novel dual-frequency slot resonant antenna, which comprises a double-sided PCB circuit copper laying board and capacitive matching circuits, wherein the double-sided PCB circuit copper laying board is mainly formed by laminating and connecting an upper surface copper laying board, a dielectric layer and a lower surface copper laying board up and down, a notch groove is formed in each of both sides of the double-sided PCB circuit copper laying board, a group of welding pads are arranged by the side of each of the two notch grooves, the two groups of welding pads of thetwo notch grooves are connected with the corresponding capacitive matching circuits separately; and the two groups of welding pads of the two notch grooves are connected to a Balun by means of respective capacitive matching circuits, and the Balun is connected with an RF transceiving amplifier. The novel dual-frequency slot resonant antenna generates effective radiation by means of a slot far smaller than a wavelength, can flexibly adjust the working efficiency through changing capacitive parameters of the matching circuits, has the advantages of flexible use, high radiation efficiency, goodomnidirectionality, capability of being integrally designed with a circuit, low cost and simple structure, and is widely applied to wireless communication antenna equipment of portable equipment.

Description

technical field [0001] The invention relates to an antenna, in particular to a novel dual-frequency slot resonant antenna. Background technique [0002] With the rapid development and promotion of wireless communication, antennas working in a single frequency band can no longer meet the working requirements of current mobile terminal equipment. The compatibility of multiple communication systems and communication methods requires antennas working in multiple frequency bands to complete the transmission and reception of signals during the communication process. At the same time, with the miniaturization requirements of portable mobile devices, the space for placing antennas becomes very narrow. If multiple different single-frequency antennas are used at the same time, it will not only increase the volume and weight, but also easily cause serious coupling and reduce the communication quality. Therefore, as an important carrier for signal transmission and reception in mobile ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/10H01Q5/20H01Q5/328H01Q23/00
Inventor 汤之仪皇甫江涛
Owner ZHEJIANG UNIV
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