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An adjustable multi-frequency antenna

A multi-frequency antenna and center frequency technology, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problem of not being able to significantly save antenna volume and achieve the effect of increasing the number

Active Publication Date: 2018-11-20
WUHAN SYNTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defect that the volume of the antenna cannot be significantly saved in the prior art, and the number of frequencies available for antenna operation is very small, the present invention provides an adjustable multi-frequency antenna

Method used

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  • An adjustable multi-frequency antenna
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  • An adjustable multi-frequency antenna

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Embodiment 1

[0036] This embodiment provides an adjustable multi-frequency antenna, see Figure 1~2 , the adjustable multi-frequency antenna 100 includes: a ground plate 11 , a dielectric substrate 12 , a first radiation patch 131 and a second radiation patch 132 . The ground plate 11 is a conductive material connected to the ground, usually a copper plate or tin foil. The dielectric substrate 12 is provided on the ground plane 11 . The dielectric substrate 12 includes a first dielectric part 121 and a second dielectric part 122, and the first and second dielectric parts are respectively composed of a first dielectric constant ε 11 and the second permittivity ε 12 made of materials. The first radiation patch 131 is disposed on the dielectric substrate 12 at a position corresponding to the first dielectric part 121, thereby having a first resonant center frequency f 11 . The second radiation patch 132 is disposed on the dielectric substrate 12 at a position corresponding to the second ...

Embodiment 2

[0041] This embodiment provides another adjustable multi-frequency antenna, such as image 3 and 4 As shown, the adjustable multi-frequency antenna 200 includes: a ground plate 21 , a dielectric substrate 22 , a first radiation patch 231 , a second radiation patch 232 and a third radiation patch 233 . The ground plate 21 is a conductive material connected to the ground, and is usually a copper plate or tin foil. The dielectric substrate 22 is provided on the ground plate 21 . The dielectric substrate 22 includes a first dielectric part 221, a second dielectric part 222 and a third dielectric part 223, and the first, second and third dielectric parts are respectively composed of a first dielectric constant ε 21 , the second permittivity ε 22 and the third permittivity ε 23 made of materials. The first radiation patch 231 is disposed on the dielectric substrate 22 at a position corresponding to the first dielectric part 221, thereby having a resonant center frequency f 21 ...

Embodiment 3

[0049] This embodiment provides another adjustable multi-frequency antenna structure, such as Figure 5-6 As shown, the adjustable multi-frequency antenna 300 includes: a ground plate 31 , a dielectric substrate 32 , a first radiation patch 331 , a second radiation patch 332 , a third radiation patch 333 and a fourth radiation patch 334 . The ground plate 31 is a conductive material connected to the ground, and is usually a copper plate or tin foil. The dielectric substrate 32 is provided on the ground plate 31 . The dielectric substrate 32 includes a first dielectric part 321, a second dielectric part 322, a third dielectric part 323 and a fourth dielectric part 324, and the first, second, third and fourth dielectric parts are respectively composed of a first dielectric constant ε 31 , the second permittivity ε 32 , the third permittivity ε 33 and the fourth permittivity ε 34 made of materials. The first radiation patch 331 is disposed on the dielectric substrate 32 at a...

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Abstract

The invention discloses an adjustable multifrequency antenna. The antenna comprises a grounding plate, a dielectric substrate, a first radiation paster and a second radiation paster, wherein the dielectric substrate is arranged on the grounding plate and includes first and second dielectric portions; the first and second dielectric portions are made of materials possessing a first dielectric constant and a second dielectric constant respectively; the first radiation paster is arranged at a position which corresponds to the first dielectric portion on the dielectric substrate so as to possess a first resonance center frequency; and the second radiation paster is arranged at a position which corresponds to the second dielectric portion on the dielectric substrate so as to possess a second center frequency. The first dielectric constant and the second dielectric constant are different so that the first resonance center frequency and the second resonance center frequency are different. When being working simultaneously, the first radiation paster and the second radiation paster are coupled and possess a third resonance center frequency. Through selecting the different radiation paster to work, the antenna can be adjusted to work at different frequencies.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an adjustable multi-frequency antenna. Background technique [0002] With the continuous advancement of technology, mobile terminals such as mobile phones are becoming more and more intelligent, with more and more functions and more and more complex structures. Therefore, the requirements for the antenna are getting higher and higher, which is mainly reflected in the fact that the space left for the antenna is getting smaller and smaller, but the frequency band of the antenna is required to be wider and wider to match the frequency requirements of communication modules of different protocols, such as Bluetooth modules, 3G Communication module, WiFi module and RFID communication module, etc. [0003] Although there are some existing antennas, the antennas of different lengths can be selected by setting switches or the antenna frequency can be adjusted by setting adjustable devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q5/10H01Q5/307
CPCH01Q1/38H01Q5/10H01Q5/307
Inventor 张科峰
Owner WUHAN SYNTEK CO LTD
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