Continuously adjustable phase shifter

A phase shifter and microstrip transmission line technology, which is applied to waveguide-type devices, electrical components, circuits, etc., can solve the problems of unbalanced coupling current between inner and outer jackets, series superposition of insertion loss of multiple phase shifters, and impedance mismatch. , to achieve the effect of flexible and variable phase shift range, improving communication quality and reducing blind area area
CN1170336CInactive Publication Date: 2004-10-06XIAN HAITIAN ANTENNA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN HAITIAN ANTENNA TECH CO LTD
Publication Date
2004-10-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

This invention provides a continuous-adjustable phase shifter containing a dielectric plate, a sliding plate, a coupling plate, a transmission-line board, among which the sliding plate is to form an air microstrip transmission line by two up-and-down strips, the coupling plate is to form a parallel transmission line by two up-and-down symmetrical metal plates and the dielectric plate fixed by a clip block at the outside of the sliding plate by use of the transition meander line microstrip structure connected with metal plate. The transmission line board decomposes the input radiation signal To to at least two routes of output signals and distributes the power at will to connect one of the routes to both ends of the sliding plate, then to send them to each radiation unit respectively after phase shift, and another route is connected directly to the radiation unit.
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Description

Technical field:

[0001] The invention relates to an antenna component, in particular to a continuously adjustable phase shifter. The continuously adjustable phase shifter is especially suitable for array antennas that scan beams and change the shape of side lobes. Background technique:

[0002] As we all know, the phase shifter is a key component to change the beam scanning of the array antenna. The phase shifters of various structures used in the existing antenna arrays all have defects in different degrees. For example, Figure 8 The shown Chinese patent 96193925.7 is an antenna array composed of three elements. The phase shifter of the antenna array is composed of a dielectric microstrip plate 16 , a dielectric sliding plate 17 and a metal base plate 18 . Microstrip lines 19 and branch lines 20 are engraved on the dielectric microstrip plate 16 . When the dielectric sliding plate 17 moves along the z direction, the signal transmission rate in the microstrip curve sect...

Claims

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