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Missile-borne and miniature monopole antenna

A monopole antenna and radome technology, which is applied to the antenna grounding device, antenna support/installation device, radiating element structure and other directions, can solve the problem of high size of monopole antenna, save internal space and reduce feeder Loss, effect of reducing antenna height

Inactive Publication Date: 2018-06-15
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a missile-borne miniaturized monopole antenna to solve the problem that the size of the existing monopole antenna is too high

Method used

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  • Missile-borne and miniature monopole antenna
  • Missile-borne and miniature monopole antenna
  • Missile-borne and miniature monopole antenna

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Embodiment 1

[0034] combine figure 1 The present invention carries miniaturized monopole antenna structure, designs a compact monopole antenna: frequency range is UHF (429.2MHz-436.4MHz) frequency band; In this frequency band | S 11 |<-10dB. The missile-borne monopole antenna includes a radome, a sleeve monopole antenna, a metal base plate, a PCB circuit board and an missile body. The material of the radome is polytetrafluoroethylene, the diameter of the largest part is 55mm; the outer diameter of the sleeve monopole antenna is 10mm, and the height above the bottom plate is 25mm; screw slots are opened on the side of the metal sleeve to extend the current path.

[0035] image 3 is the measured S parameter of the missile-borne miniaturized monopole antenna of the present invention, Figure 4 is the radiation pattern of the antenna. The center frequency of the antenna is around 433MHz, the height of the sleeve monopole antenna is less than 0.04λ, and the miniaturization effect is remark...

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Abstract

The invention discloses a missile-borne and miniature monopole antenna. The missile-borne and miniature monopole antenna mainly comprises a conical antenna cover, a sleeve monopole antenna, a PCB, a metal bottom plate and a missile body, wherein the conical antenna cover is arranged at a head end of the missile body, the sleeve monopole antenna comprises a metal sleeve, a ceramic dielectric rod, afeeding probe and a support cushion sheet, the metal cylinder wraps a side surface and a bottom surface of the cylindrical ceramic dielectric rod, the feeding probe penetrates through a bottom surface of the metal sleeve and is fixed on the ceramic dielectric rod, the metal sleeve is of a barrel-shaped structure of which an upper surface is opened and the bottom is closed, and a spiral gap is formed in a side wall of the metal sleeve. By the missile-borne and miniature monopole antenna, the problems that the size of an existing monopole antenna is excessively large and missile-borne application cannot be achieved are solved, and the missile-borne and miniature monopole antenna has the advantage of simple structure and is easy to process and assemble.

Description

technical field [0001] The invention belongs to the technical field of missile-borne antennas, in particular to a missile-borne miniaturized monopole antenna. Background technique [0002] With the continuous development of science and technology and the increasing functional requirements of projectiles in military resistance, the miniaturization and integration of various missile-borne systems has become an important development trend. Missile-borne antennas play an important role in modern military communications, detection, and information countermeasures, and their performance plays a decisive role in the performance of the system. In order to save the internal space of the projectile and ensure the structural strength, the miniaturized antenna has long been an important technical indicator of the missile-borne antenna. [0003] Because of its simple structure and the ability to radiate linearly polarized waves with small cross-polarization, monopole antennas are widely...

Claims

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Application Information

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IPC IPC(8): H01Q1/12H01Q1/36H01Q1/48
CPCH01Q1/12H01Q1/36H01Q1/48
Inventor 王昊薛成石远程吴辰炜
Owner NANJING UNIV OF SCI & TECH