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Miniature planer ultra-wide-band antenna

An ultra-wideband antenna and planar technology, which is applied in the direction of antenna grounding switch structure connection, radiation element structure, etc., can solve the problems of occupying a large space, difficult small system integration design, design and manufacturing difficulties, etc., to achieve small size, Ease of Microwave Integration, Compact Effects

Active Publication Date: 2017-09-22
TIANJIN 764 COMM AIRMANSHIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] People have designed a variety of antennas suitable for this frequency range, but most of them are three-dimensional antennas, which are relatively difficult to design and manufacture, and will occupy a large space in practice, and it is difficult to realize the integration with small systems. integrated design

Method used

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  • Miniature planer ultra-wide-band antenna

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Embodiment Construction

[0008] Such as figure 1 As shown, the small planar ultra-wideband antenna includes a dielectric substrate 1, a slot 2, a microstrip feeder 3 and an SMA radio frequency connector 4. The relative dielectric constant of the dielectric substrate 1 is 4.4, the thickness is 1.6mm, and the length is 37mm. The FR4 plate with a width of 30 mm, the gap 2 is a flat groove left by removing a metal layer of a certain shape on the upper surface of the dielectric substrate 1, and the certain shape is a circle with a diameter of 22 mm, and the upper end of the circle is from the upper end surface of the dielectric substrate 1 4mm, there is a notch in the horizontal direction of the circle, the apex of the notch is on the horizontal diameter of the circle, the radius of the notch is a=13mm, the angle θ=15°, there is a rectangular blind opening at the lower end of the circle, along the vertical diameter, the rectangular blind The intersection point of the opening and the circle is 11mm away fro...

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Abstract

The invention relates to a miniature planer ultra-wide-band antenna. The miniature planer ultra-wide-band antenna comprises a dielectric substrate, a gap, a micro-strip feeder and an SMA radio frequency connector, wherein the dielectric substrate is an FR4 sheet material with the relative dielectric constant of 4.4; the gap is a circular flat groove with the diameter of 20 to 24 mm remaining after a circular metal layer on the upper surface of the dielectric substrate is removed; a broken corner is formed in the horizontal direction of a circle, the peak of the broken corner is on the horizontal diameter of the circle, the semi-diameter a of the broken corner is equal to 11 to 15 mm, and the angle theta of the broken corner is equal to 13 to 17 degrees; a rectangular blind opening is formed in the lower end of the circle downwards along the vertical diameter; the distance between the intersection point of the rectangular blind opening and the circle and the bottom end face of the dielectric substrate is 11 mm; a strip metal micro-strip feeder is arranged on a vertical center line on the other surface of the dielectric substrate from the bottom end face upwards; the size of the micro-strip feeder meets the requirement of 50 Omega; the SMA radio frequency connector is fixed on the micro-strip feeder; and a metal layer of the dielectric substrate is grounded. The miniature planer ultra-wide-band antenna has compact in structure and small in size, is easy to microwave integration, meets the requirement of an ultra-wide-band wireless communication system for antenna radiation characteristic, and can serve as a transceiving antenna of a miniature ultra-wide-band system.

Description

technical field [0001] The invention relates to an ultra-wideband antenna, in particular to a small planar ultra-wideband antenna. Background technique [0002] In recent years, people's research on ultra-wideband technology has become more and more extensive and in-depth, mainly because this system has a wide frequency range from 3.1GHz to 10.6GHz, and can obtain large data transmission within a short distance (10 meters) At the same time, due to its own low power consumption and high capacity characteristics, it has its own characteristics and advantages compared with practical Bluetooth technology and IEEE 802.11 / a / b / g (54 Mbps / 11 Mbps / 22 Mbps) . [0003] People have designed a variety of antennas suitable for this frequency range, but most of them are three-dimensional antennas, which are relatively difficult to design and manufacture, and will occupy a large space in practice, and it is difficult to realize the integration with small systems. integrated design. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50Y02D30/70
Inventor 陈建军蔡玉亭王长林项勇跃刘晴晴张宪维白明杰
Owner TIANJIN 764 COMM AIRMANSHIP
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