Printed Yagi antenna of vibrator loading type balance microstrip line feed

A technology for balancing microstrip lines and Yagi antennas, applied in antennas, antenna grounding switch structural connection, electrical components, etc., can solve problems such as large size, achieve size reduction, reduce size, and facilitate operation and maintenance.
CN102800951AInactive Publication Date: 2012-11-28HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2012-11-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a printed Yagi antenna of vibrator loading type balance microstrip line feed, relating to a printed Yagi antenna, in particular to a printed Yagi antenna of vibrator loading type balance microstrip line feed. The invention aims to solve the problem that the existing printed Yagi antenna feed structure has a very large size. In the invention, a first symmetric vibrator and a second symmetric vibrator are printed between a director and a reflector in a straight manner; the reflector is connected with a feed part in the middle of the lower edge of a dielectric slab; one side of the first symmetric vibrator close to the second symmetric vibrator is connected with the reflector through a feeder; a dead-end feeder load is printed on the back of the dielectric slab and connected with the feed part printed in the middle of the lower edge of the dielectric slab through a feeder; the second symmetric vibrator is connected with the feed through a metalized feed via hole by a balance microstrip line on the back of the dielectric slab; and the diameter of the metalized feed via hole is 1mm. The printed Yagi antenna disclosed by the invention is applied to the field of radio technology.
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Description

technical field

[0001] The invention relates to a printed Yagi antenna, in particular to a printed Yagi antenna loaded by an oscillator and fed by a balanced microstrip line. Background technique

[0002] The Yagi antenna was invented by Yagi Hideji and Uda Taro of Tohoku University in Japan in 1928. Since it came out, it has been widely used in radio communication and radar systems due to its simple structure and high gain. The structure of this antenna is generally composed of an active oscillator (usually a half-wave oscillator), a reflector and several directors, and the typical structure is a cylindrical oscillator structure. With the deepening of the research on the antenna, there have been directional antennas with active oscillators in the form of folded oscillators, fan-shaped oscillators, and conical oscillators, and the reflectors have also appeared in the form of corner reflectors and parabolic reflectors. With the development of printed circuit technology, Qian...

Claims

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