Phase electric modulation antenna

A phased antenna and ESC technology, applied to antennas, electrical components, etc., can solve the problems of insufficient bandwidth of phased array antennas, insufficient phase shifting accuracy and system reliability, and high complexity of feeding phase shifting network design. Achieve the effects of low cost, reduced structural volume, and reduced production costs
CN103346401AActive Publication Date: 2013-10-09JIANGSU HENGXIN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU HENGXIN TECH CO LTD
Publication Date
2013-10-09

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Abstract

The invention relates to the technical field of electrocommunication, in particular to a phase electric modulation antenna. The phase electric modulation antenna comprises a coaxial line interface, a wide band printing one-arm helical antenna body, an active controllable circuit and a dielectric substrate. The wide band printing one-arm helical antenna body is printed on the upper surface of the dielectric substrate, an inner conductor of the coaxial line interface is directly connected with an input port of the wide band printing one-arm helical antenna body through a penetrating hole in the dielectric substrate, an outer conductor of the coaxial line interface is connected with the ground, the active controllable circuit comprises an adjustable capacitor and a direct current biasing circuit, one end of the adjustable capacitor is connected to the tail end of the wide band printing one-arm helical antenna body, the other end of the adjustable capacitor is directly connected with the ground, and the direct current biasing circuit is connected to the two ends of the adjustable capacitor in parallel. The phase electric modulation antenna uses the mode of loading the adjustable capacitor to achieve continuous changing of phase characteristics of the phase electric modulation antenna by controlling continuous changing of an adjustable capacitance value. The phase electric modulation antenna is simple in structure, easy to achieve, low in cost and strong in operability, and solves the problem that the bandwidth is limited.
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Description

technical field

[0001] The invention relates to the technical field of electronic communication, in particular to an electrically adjustable phase antenna, which can be used in production, retail, phased array antennas and microwave systems requiring continuous phase shifting in wide frequency bands. Background technique

[0002] The electrically adjustable phase antenna is an antenna whose phase continuity can be adjusted by means of a loaded adjustable capacitor and a broadband printed single-arm helical antenna. As a continuous-phase antenna with wide frequency band and relatively simple structure, the antenna can be widely used in various microwave systems.

[0003] The traditional phase shifter is called a phase shifter. According to the control circuit used, the phase shifter can be divided into "analog" phase shifter and "digital" phase shifter. The "analog" phase shifter controls the change of the output phase shift through the magnitude of the analog quantity of vo...

Claims

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