CN105529528A - Planar antenna - Google Patents

Planar antenna Download PDF

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Publication number
CN105529528A
CN105529528A CN201610089170.0A CN201610089170A CN105529528A CN 105529528 A CN105529528 A CN 105529528A CN 201610089170 A CN201610089170 A CN 201610089170A CN 105529528 A CN105529528 A CN 105529528A
Authority
CN
China
Prior art keywords
antenna
described
arc
antenna branch
afterbody
Prior art date
Application number
CN201610089170.0A
Other languages
Chinese (zh)
Inventor
邱圣渊
甘世宗
汤庆仲
卢彦龙
Original Assignee
昆山联滔电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昆山联滔电子有限公司 filed Critical 昆山联滔电子有限公司
Priority to CN201610089170.0A priority Critical patent/CN105529528A/en
Publication of CN105529528A publication Critical patent/CN105529528A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith

Abstract

The invention relates to a planar antenna, which comprises a ground plane and a round clearance zone, wherein the round clearance zone is hollowed out in the ground plane; a first antenna branch and a second antenna branch are arranged in the round clearance zone; the first antenna branch is in an arc form and is surrounded at the outer side of the second antenna branch; the first antenna branch comprises opposite first tail end and second tail second; the first tail end is connected with a ground plane; the second tail end is connected with the second antenna branch; the second tail end is also provided with a feed point which is welded with a coaxial line; the second antenna branch comprises an arc-shaped plate and a first radiation arm; the first radiation arm is located in the arc-shaped plate; and the arc-shaped plate comprises opposite first tail part and second tail part, so that the floor area of the planar antenna is reduced.

Description

Flat plane antenna

Technical field

The present invention relates to a kind of flat plane antenna.

Background technology

At present, each electronic product combines with communication module, as mobile phone, panel computer etc., makes user be advantageously connected to Local Area Network, or communicates to connect each other.Planar inverted F-shape antenna (PlanarInverTedFAntenna, hereinafter referred to as PIFA) be a kind of antenna design being widely used in various telecom terminal product, its basic structure is that employing planar radiating element is as radiant body, and using a large ground plane as reflecting surface, radiant body there is the pin of two vicinities, respectively in order to ground connection (Ground) with as feedback point (Feedpad).But the area of this antenna structure is comparatively large, needs to take a lot of spaces.

Summary of the invention

The object of the present invention is to provide a kind of flat plane antenna with reduction area occupied.

For realizing aforementioned object, the present invention adopts following technical scheme: a kind of flat plane antenna, it comprises a ground plane and the circular headroom district of hollow out in ground plane, one first antenna branch and one second antenna branch is provided with in described headroom district, described first antenna branches into arc, be surrounded on the outside of the second antenna branch, described first antenna branch has the first relative end and the second end, first end is connected with ground plane, described second end is connected with the second antenna branch, second end is also provided with weld together with a coaxial line one present point, described second antenna branch comprises an arc-like sheet and is positioned at one first radiation arm of arc-like sheet, described arc-like sheet has relative first afterbody and the second afterbody, described first afterbody connects the first radiation arm, described second afterbody is provided with the second radiation arm extended towards the first caudal directions.

First antenna of flat plane antenna of the present invention branches into arc, be surrounded on the outside of the second antenna branch, described second antenna branch comprises an arc-like sheet and is positioned at one first radiation arm of arc-like sheet, described arc-like sheet has relative first afterbody and the second afterbody, described first afterbody connects the first radiation arm, described second afterbody is provided with the second radiation arm extended towards the first caudal directions, design like this, reduce the area occupied of flat plane antenna, when antenna size and headroom district minimum, maintain antenna performance simultaneously and keep the omni-directional of radiation pattern.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of flat plane antenna of the present invention.

Embodiment

Refer to shown in Fig. 1, flat plane antenna 100 of the present invention, it circular headroom district 12 comprising a ground plane 11 and be positioned at ground plane 11, in headroom district 12, be provided with the planar inverted-F antenna be made up of one first antenna branch 14 and one second antenna branch 15.First antenna branch 14 is arc, is surrounded on the outside of the second antenna branch 15, simultaneously parallel with the inner surface in headroom district 12.First antenna branch 14 has the first relative end 141 and the second end 142, first end 141 is connected with ground plane 11, is grounded.Second end 142 is connected with the second antenna branch 15, the second end 142 is also provided with a feedback point 143, welds together with a coaxial line 15.

Second antenna branch 15 comprises an arc-like sheet 150 and is positioned at one first radiation arm 151 of arc-like sheet 150, arc-like sheet 150 is different from the home position in headroom district 12, arc-like sheet 150 is made to be close to ground plane 11, achieve the characteristic of planar inverted-F antenna in conjunction with coupled antenna, effectively can reduce antenna and keep stand line characteristic.Arc-like sheet 150 is different from the home position of the first antenna branch 14, arc-like sheet 150 is provided with relative first afterbody 154 and the second afterbody 155, first afterbody 154 and the second afterbody 155 close to each other but spaced apart, the first radiation arm 151 extends to the inside from the first afterbody 154 and forms.

The radiation fin 156 of a junction 157, second antenna branch 15 that first radiation arm 151 comprises a rectangular radiation patch 156 and connects radiation fin 156 and the first afterbody 154 is positioned at the circular position of arc-like sheet 150.Second afterbody 155 is provided with the root being connected to the second radiation arm 158 towards the second end 142 of the second radiation arm 158, first antenna branch 14 of the first afterbody 154 direction extension.

First antenna branch 14 of flat plane antenna 100 of the present invention is set to arc, second antenna branch 15 is provided with an arc-like sheet 150 and is positioned at one first radiation arm 151 of arc-like sheet 150, design like this, reduce the area occupied of flat plane antenna 100, when antenna size and headroom district minimum, maintain antenna performance simultaneously and keep the omni-directional of radiation pattern.

Although be example object, disclose the preferred embodiment of the present invention, but those of ordinary skill in the art will recognize, when not departing from scope and spirit of the present invention disclosed in appending claims, various improvement, increase and replacement are possible.

Claims (5)

1. a flat plane antenna, it comprises a ground plane and the circular headroom district of hollow out in ground plane, one first antenna branch and one second antenna branch is provided with in described headroom district, it is characterized in that: described first antenna branches into arc, be surrounded on the outside of the second antenna branch, described first antenna branch has the first relative end and the second end, first end is connected with ground plane, described second end is connected with the second antenna branch, second end is also provided with weld together with a coaxial line one present point, described second antenna branch comprises an arc-like sheet and is positioned at one first radiation arm of arc-like sheet, described arc-like sheet has relative first afterbody and the second afterbody, described first afterbody connects the first radiation arm, described second afterbody is provided with the second radiation arm extended towards the first caudal directions.
2. flat plane antenna according to claim 1, is characterized in that: described arc-like sheet is different from the home position of the first antenna branch.
3. flat plane antenna according to claim 1, is characterized in that: described first afterbody and the second afterbody close to each other but spaced apart.
4. flat plane antenna according to claim 1, is characterized in that: the second end of described first antenna branch is connected to the root of the second radiation arm.
5. flat plane antenna according to claim 2, is characterized in that: described first radiation arm comprises a rectangular radiation patch and connects a junction of radiation fin and the first afterbody, and described radiation fin is positioned at the circular position of arc-like sheet.
CN201610089170.0A 2016-02-17 2016-02-17 Planar antenna CN105529528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610089170.0A CN105529528A (en) 2016-02-17 2016-02-17 Planar antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610089170.0A CN105529528A (en) 2016-02-17 2016-02-17 Planar antenna

Publications (1)

Publication Number Publication Date
CN105529528A true CN105529528A (en) 2016-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610089170.0A CN105529528A (en) 2016-02-17 2016-02-17 Planar antenna

Country Status (1)

Country Link
CN (1) CN105529528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106684532A (en) * 2016-11-17 2017-05-17 西北工业大学 Low-profile omni-directional high-frequency antenna

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914573B1 (en) * 2000-08-07 2005-07-05 Freescale Semiconductor, Inc. Electrically small planar UWB antenna apparatus and related system
CN101562277A (en) * 2008-04-16 2009-10-21 鸿富锦精密工业(深圳)有限公司;鸿海精密工业股份有限公司 Printed antenna
CN204118251U (en) * 2014-09-12 2015-01-21 昆山联滔电子有限公司 Flat plane antenna
CN105261832A (en) * 2015-10-29 2016-01-20 惠州硕贝德无线科技股份有限公司 Vehicle-borne two-in-one antenna
CN205406712U (en) * 2016-02-17 2016-07-27 昆山联滔电子有限公司 Flat antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914573B1 (en) * 2000-08-07 2005-07-05 Freescale Semiconductor, Inc. Electrically small planar UWB antenna apparatus and related system
CN101562277A (en) * 2008-04-16 2009-10-21 鸿富锦精密工业(深圳)有限公司;鸿海精密工业股份有限公司 Printed antenna
CN204118251U (en) * 2014-09-12 2015-01-21 昆山联滔电子有限公司 Flat plane antenna
CN105261832A (en) * 2015-10-29 2016-01-20 惠州硕贝德无线科技股份有限公司 Vehicle-borne two-in-one antenna
CN205406712U (en) * 2016-02-17 2016-07-27 昆山联滔电子有限公司 Flat antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106684532A (en) * 2016-11-17 2017-05-17 西北工业大学 Low-profile omni-directional high-frequency antenna

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Application publication date: 20160427