Passive antenna array applied to millimeter wave communication and design method of passive antenna array

A technology for passive antennas and antenna arrays, which is applied to separately powered antenna arrays, antenna arrays, and devices for manufacturing antenna arrays, etc., can solve the problems of few MIMO channels, inability to meet design requirements, and design difficulties, so as to solve the problem of insufficient gain. Effect

Active Publication Date: 2019-02-01
CETHIK GRP
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Problems solved by technology

[0004] However, in actual design, the gain of traditional passive antenna design is insufficient to meet the design needs
In order to increase the antenna gain, the active antenna design will increase the cost
[0005] In addition, MIMO lanes are generally less, making design difficult due to the small number of phases

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  • Passive antenna array applied to millimeter wave communication and design method of passive antenna array
  • Passive antenna array applied to millimeter wave communication and design method of passive antenna array
  • Passive antenna array applied to millimeter wave communication and design method of passive antenna array

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Embodiment Construction

[0016] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, and the following embodiments do not constitute a limitation of the present invention.

[0017] Due to the performance requirements of 60GHz communication technology such as transmission rate, distance and power consumption, it is necessary to focus on improving performance such as gain, bandwidth and efficiency when designing and implementing antennas in this frequency band. First of all, the attenuation of high frequency, oxygen molecules and water molecules, in order to meet the requirements of long-distance transmission, not only requires the power amplifier to have enough output power to transmit signals, but also requires the antenna to have a large enough gain; secondly, the antenna needs to have a wide enough Bandwidth to cover the entire 60GHz frequency range, while high radiation efficiency is required to reduc...

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Abstract

The invention discloses a passive antenna array applied to millimeter wave communication and a design method of the passive antenna array. The antenna array comprises a plurality of sub-microstrip antennas; each sub-microstrip antenna comprises at least two microstrip patches; the microstrip patches are connected through a series feed microstrip transmission line; the microstrip patch adjacent toa feed end is connected with the feed end through a feed microstrip transmission line; the lengths of the series feed microstrip transmission line and the length of the feed microstrip transmission line are calculated through a transmission function, so that each of the microstrip patches transmit transmission signals of different phases; with the microstrip patches stacked, the transmission characteristics of the sub-microstrip antenna can be realized. According to the passive antenna array of the invention, the lengths of the transmission lines can be changed, so that a plurality of signal phases can be generated; sub-array antennas can be established through a multi-phase signal source; a large-scale antenna array can be established on the basis of the phase characteristics of differentsub-antenna arrays; phase adjustment is flexible; and the problems of insufficient gain and inflexibility of a passive antenna can be solved.

Description

technical field [0001] The invention belongs to the technical field of antenna design, in particular to a passive antenna array applied to millimeter wave communication and a design method thereof. Background technique [0002] In recent years, the 60GHz license-free frequency band has been opened in more and more countries. The 60GHz millimeter wave communication technology has the characteristics of strong anti-interference ability, high security, rich spectrum resources, high transmission rate, and high integration. 60GHz millimeter wave communication technology is widely used, covering high-speed wireless communication, automotive radar, medical imaging, wireless high-definition multimedia interface and other fields. [0003] As a key component of 60GHz millimeter wave communication technology, antenna is currently a research hotspot in millimeter wave communication. Large-scale antenna array design is the core technology of modern wireless communication, especially mil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00H01Q21/08
CPCH01Q1/38H01Q1/50H01Q21/0075H01Q21/0087H01Q21/08
Inventor 吕浩史锋徐能健徐敏张航潘小伟朱良王春雨薛丽房燕
Owner CETHIK GRP
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