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Miniature broadband composite antenna

A composite antenna and broadband technology, applied in the field of composite antennas, can solve the problem of difficulty in miniaturization of antennas, and achieve the effect of realizing broadband omnidirectional characteristics and miniaturization

Inactive Publication Date: 2016-07-20
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a miniaturized broadband composite antenna, which aims to solve the problem that the miniaturization of the antenna is difficult due to the limitations of the antenna itself.

Method used

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] The structure of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the miniaturized broadband composite antenna of the embodiment of the present invention mainly includes: capacitor cap 1, frustum 2, hollow cylinder 3, upper biconical antenna feeder 4, lower biconical antenna feeder 5, radome 6, flange Disc 7 , medium 8 , compound antenna low-frequency feed port 9 , compound antenna high-frequency feed port 10 .

[0022] The antenna is composed of two biconical antennas (an upper biconical antenna and a lower biconical antenna)...

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Abstract

The invention discloses a miniature broadband composite antenna, which comprises an upper biconical antenna, a lower biconical antenna, a medium, an antenna cover and a flange plate, wherein a deformed cone frustum structure is adopted in the upper biconical antenna and the lower biconical antenna; a coaxial cable passes through the inside of cone frustums to feed the two antennas; the upper biconical antenna and the lower biconical antenna are isolated with the medium and play a support role; the antenna cover is arranged on the periphery of the overall composite antenna to play a role in fixing and protecting an antenna system to reduce the influence of the external environment to the greatest extent; and the flange plate is added to the bottom part of the composite antenna to play a role in fixing the antenna. The biconical antennas are adopted as a basic form of compounding the antennas; the broadband omnidirectional characteristics of the antenna are achieved; an up-and-down stacked coupled structure is adopted by the two biconical antennas; impedance matching of the antenna can be adjusted when high isolation degree between the two antennas is ensured; the tail end of the cone frustum structure of each antenna unit is turned over; and miniaturization of the antenna is achieved.

Description

technical field [0001] The invention belongs to the technical field of composite antennas, in particular to a miniaturized broadband composite antenna. Background technique [0002] Ultrashort wave communication is a communication that uses radio waves in the 30-300MHz band to transmit information, mainly relying on ground wave propagation and space wave line-of-sight propagation. Due to its wide frequency band, it is widely used in fields such as television, FM radio, radar detection, mobile communication and military communication. Ultrashort wave antenna is an important part of ultrashort wave communication system. The traditional antenna forms include: monopole whip antenna, dipole antenna, disc cone antenna, cage antenna, stub grounding grid, disc cage antenna, cone Helical antennas, log-periodic antennas, reflector antennas, etc. [0003] However, due to the limitations of the inherent structural characteristics of these antennas, it is difficult to miniaturize the a...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/50
CPCH01Q1/36H01Q1/50
Inventor 张志亚左少丽杨龙王力傅光黄鹏赵佳越
Owner XIDIAN UNIV
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