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A ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna

A technology of balanced feed and horn antenna, which is applied in the direction of antenna, waveguide horn, antenna grounding switch structure connection, etc., can solve the problems of limited use, antenna performance discount, etc., and achieve the elimination of grating lobe problems, size reduction, and feed network simple effect

Active Publication Date: 2020-09-11
SOUTHEAST UNIV
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Problems solved by technology

However, when the traditional waveguide horn antenna unit is formed into an array, due to the large diameter of the horn, the distance between the unit and the unit exceeds one working wavelength, resulting in a larger grating lobe, and the larger grating lobe makes The performance of the antenna is greatly reduced, which also limits its use in the field of satellite communications

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  • A ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna
  • A ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna
  • A ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna

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Embodiment Construction

[0029] The technical solution of the present invention will be further introduced below in combination with specific implementation methods and accompanying drawings.

[0030] This specific embodiment discloses a Ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna, such as figure 1 As shown, it includes crossed metal strips 4 or metal walls arranged from top to bottom, a stepped and tapered dielectric horn antenna 1 , an upper-layer balanced feed network 2 and a lower-layer balanced feed network 3 . The criss-cross metal strip 4 is arranged at the center of the top of the stepped dielectric horn antenna 1 . The stepped and tapered dielectric horn antenna 1 is formed by superimposing multiple layers of stepped media, and the cross-sectional structure of the horn is surrounded by metallized long slots 5 that are not connected to each other in each layer of media. The length of the metallized long groove 5 is L, the width is W, and the two ends of the ...

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Abstract

The invention discloses a Ku-band balanced feed dual-band dual-polarized dielectric horn antenna, which comprises a stepped gradient dielectric horn antenna, an upper balanced feed network and a lowerbalanced feed network, wherein the stepped gradient dielectric horn antenna is formed through superposing multiple layers of stepped dielectrics; a profile structure of a horn is enclosed in each layer of dielectric through disconnected metalized slots; the upper balanced feed network is used for achieving a horizontally polarized wave; and the lower balanced feed network is used for achieving avertically polarized wave. According to the Ku-band balanced feed dual-band dual-polarized dielectric horn antenna, the problem of a grating lobe of a traditional waveguide horn antenna during array forming is solved; the dimension of the Ku-band balanced feed dual-band dual-polarized dielectric horn antenna is greatly reduced; furthermore, the Ku-band balanced feed dual-band dual-polarized dielectric horn antenna is very simple in structure and very convenient to process, debug and install; and the Ku-band balanced feed dual-band dual-polarized dielectric horn antenna has the characteristicsof being wide in band, high in isolation, low in cross polarization and high in efficiency and has the characteristics of being simple in feed networks, low in loss and convenient to integrate.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a Ku-band balanced feed dual-frequency dual-polarization dielectric horn antenna. Background technique [0002] In recent years, with the rapid growth of satellite communication services and the rapid development of satellite communication technology, the traditional microwave low-frequency band has become very crowded, so Ku-band and even Ka-band have been used in satellite communication to meet the growing demand. communication needs. Today, the most widely used Ku-band antennas are mainly parabolic antennas. Parabolic antennas have the characteristics of heavy weight, large volume, high cost, and difficult installation and debugging. Due to the limitation of space in some applications, the parabolic antenna is too large to meet certain technical requirements, so the miniaturization of the antenna is very important. In some special applications, such as individual satellite ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02H01Q1/50
CPCH01Q1/50H01Q13/0208
Inventor 陈鹏杜恒张慧余旭涛
Owner SOUTHEAST UNIV
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