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Broadband antenna of dual resonance

A broadband antenna, dual resonance technology, applied in resonant antennas, antennas, antenna parts and other directions, can solve the problems of enlarged antenna size, miniaturization of antenna miniaturization, impact and limitations of portable terminals, etc. and reliability, and the effect of improving commerciality

Inactive Publication Date: 2010-02-10
E M W ANTENNA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, considering the characteristics of ground-wave broadcasting using lower frequency bands, the length of the antenna is limited when using the above-mentioned antenna to receive ground-wave broadcasting services, and this will also restrict the miniaturization of portable terminals.
[0007] In particular, in order to obtain broadband radiation characteristics, the size of the antenna will become large, which will adversely affect the miniaturization of the antenna and the miniaturization of the portable terminal using the antenna

Method used

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  • Broadband antenna of dual resonance
  • Broadband antenna of dual resonance
  • Broadband antenna of dual resonance

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Embodiment Construction

[0023] Hereinafter, the preferred embodiments of the dual-resonance broadband antenna of the present invention will be described in detail with reference to the accompanying drawings.

[0024] figure 1 It is a structural diagram of an example of the dual resonant broadband antenna of the present invention, including a first radiator 10, a second radiator 20, a dielectric 30, a grounding portion 40, a connecting portion 50, a first inductive element 61 and a power supply portion 70, and the above-mentioned first radiation The body 10 and the second radiator 20 are in a polyline style that repeats the "ㄈ" shape.

[0025] like Figure 4 The above-mentioned first radiator 10 resonates at the first resonance frequency corresponding to (A), for example, at 174 MHz included in the VHF frequency band, and the above-mentioned first radiator 10 interacts with the above-mentioned first inductance element 61 to cause resonance at the above-mentioned first inductance element 61. Resonanc...

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Abstract

Disclosed herein is a dual-resonance broadband antenna, and more particularly, to such a dual-resonance broadband antenna in which dual resonance is caused to occur using an antenna consisting of a strip line, a microstrip line or the like having a meander pattern so as to receive a signal for a wireless communication service at a relatively low frequency band, particularly, a signal with a terrestrial digital multimedia broadcasting (T-DMB) service frequency band of 174-216 MHz among a very high frequency (VHF) band. Particularly, the dual-resonance broadband antenna of the present inventionis remarkably red uced in its size (length) as compared to a general helical antenna, a monopole antenna, a dipole antenna or the like while using a wireless communication service at a relatively lowfrequency band, thereby achieving miniaturization thereof. Further, it is possible to improve quality and reliability of the small-sized dual-resonance broadband antenna according to the present invention as well as enhance the qualities of a portable terminal and a transmission and reception device for wireless communication employing the antenna according to the present invention.

Description

technical field [0001] The present invention relates to a dual-resonance wideband antenna, in particular to a dual-resonance generated by an antenna composed of a meander-style stripline or microstrip line, so as to receive a lower frequency band wireless communication service signal, especially a VHF (VHF) Very High Frequency: 30 ~ 300MHz) double resonance broadband antenna for ground wave T-DMB (Digital Multimedia Broadcasting) service band (174 ~ 216MHz) signal. [0002] In particular, while utilizing wireless communication services in lower frequency bands, the size can be significantly reduced compared to general helical (Heliacl) antennas, monopole (Monopole) antennas, or dipole (Dipole) antennas to achieve miniaturization. While improving the commerciality and reliability of the antenna of the present invention, the commerciality of the portable terminal and the wireless communication transmitter-receiver using the antenna of the present invention can also be improved. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/08H01Q5/10
CPCH01Q1/242H01Q9/30H01Q1/38H01Q21/30H01Q5/0062H01Q5/378H01Q13/08
Inventor 柳秉勋成元模崔在薰全承吉柳洸佑
Owner E M W ANTENNA CO LTD