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Multi-layer spiral antenna for mobile telecommunication unit

A helical antenna, telecommunications technology, applied in the directions of helical antennas, antennas, electrical components, etc., can solve problems such as the limitation of the degree of miniaturization of helical antennas

Inactive Publication Date: 2005-04-27
KOREA ELECTRONICS TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a result of the aforementioned limitations, the degree of possible miniaturization of currently available helical antennas is limited

Method used

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  • Multi-layer spiral antenna for mobile telecommunication unit
  • Multi-layer spiral antenna for mobile telecommunication unit
  • Multi-layer spiral antenna for mobile telecommunication unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 2 The detailed structure of a multilayer helical antenna according to the present invention is shown in . As shown in the figure, the multilayer helical antenna 100 of the present invention includes a first dielectric sheet 130 , a plurality of second dielectric sheets 120 and a plurality of third dielectric sheets 110 . Each of the dielectric sheets 110 to 130 has a substantially disk shape and is made of a dielectric material having a predetermined dielectric constant and is provided with a through hole 180 at the center thereof so that a whip antenna 200 is aligned along a central axis of the helical antenna 100. Sliding up and down, the helical antenna is formed by stacking the dielectric sheets in a predetermined order in which the first dielectric sheet 130 is placed on top of the stack, followed by the second dielectric sheet 120 with the initial hole , followed by the third dielectric sheet 110, followed by the second dielectric sheet 120, followed by t...

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Abstract

A multilayered helical antenna for mobile communication units includes a first dielectric sheet, a plurality of second dielectric sheets, a plurality of second and third dielectric sheets. All of the second dielectric sheets, except one, have a starting hole and an ending hole, with the exception having the starting hole only. Each of the second dielectric sheet is provided with a partially opened circular metallic pattern. Each of the third dielectric sheets has a via hole. Each of the dielectric sheets has a through-hole at a center thereof in order to allow a whip antenna to be slid upward and downward along a center axis of a helical antenna which is formed by stacking the dielectric sheets in a predetermined order. The via holes are filled with the same conducting material as the partially opened circular metallic patterns to thereby vertically connect the partially opened circular metallic patterns on the second dielectric sheets through the corresponding starting holes and ending holes, thereby forming a spiral capable of transmitting and receiving horizontal and vertical polarizations.

Description

technical field [0001] The present invention relates to an antenna for transmitting and receiving radio frequency signals; and more particularly, to a multi-layer helical antenna for use in a mobile telecommunication unit, the antenna comprising a plurality of dielectric sheets therein, wherein the dielectric sheets Stacked on top of each other, some dielectric sheets are each provided with a conductor pattern. Background technique [0002] As is well known, helical antennas are provided with a dielectric body and an elongated metallic conductor of suitable length helically or helically wound thereon. [0003] Figure 1A with 1B A typical helical antenna is shown in . As shown in the figure, the helical antenna includes a dielectric body 30 with a through hole 40 at its center; and a metal coil 10 or a metal conductor shape 20 wound spirally or helically on the dielectric conductor 30, so as to pass Its coaxial axis feeds energy. Also, the helical antenna includes a mono...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/38H01Q11/08
CPCH01Q1/242H01Q1/38H01Q11/08H01Q1/362H01Q1/36
Inventor 金种圭朴寅植徐哠硕
Owner KOREA ELECTRONICS TECH INST