KR101704572B1 - For vehicle pole antenna and antenna structure having the same - Google Patents

For vehicle pole antenna and antenna structure having the same Download PDF

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Publication number
KR101704572B1
KR101704572B1 KR1020150133961A KR20150133961A KR101704572B1 KR 101704572 B1 KR101704572 B1 KR 101704572B1 KR 1020150133961 A KR1020150133961 A KR 1020150133961A KR 20150133961 A KR20150133961 A KR 20150133961A KR 101704572 B1 KR101704572 B1 KR 101704572B1
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KR
South Korea
Prior art keywords
antenna
coil part
micro
length
accessory coil
Prior art date
Application number
KR1020150133961A
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Korean (ko)
Inventor
김병국
권재환
김용호
Original Assignee
현대자동차주식회사
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Priority to KR1020150133961A priority Critical patent/KR101704572B1/en
Application granted granted Critical
Publication of KR101704572B1 publication Critical patent/KR101704572B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

Disclosed are a vehicle pole antenna supporting a multi-frequency band and an antenna structure using the same. The vehicle pole antenna supporting a multi-frequency band according to an embodiment of the present invention comprises: a spiral coil part having a mono pole type; a spiral subsidiary coil part which extends in the coil part and forms a pitch change point section; and a micro antenna part formed in the lower part of the subsidiary coil part. Therefore, manufacturing cost such as cost, metal mold manufacturing cost and mechanical reliability certification can be saved and a fraction defective can be reduced by using the existing complex pole antenna and/or the antenna structure using the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pole antenna for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a pole antenna for a vehicle and a structure of an antenna using the pole antenna, and more particularly, to a pole antenna for a vehicle supporting multiple (multiple) frequency bands.

BACKGROUND ART [0002] A small-sized vehicle antenna is a device for receiving a radio broadcast through a radio receiver configured in a vehicle, and is generally known as a pole antenna.

The pole antenna has a helical coil type structure so that resonance occurs at a length shorter than the length of the antenna.

Recently, since terminals such as a telematics terminal and a GPS receiving device capable of wireless communication are installed in a vehicle, the above-described pole antenna is designed with a complicated antenna structure to support a plurality of frequency bands.

For example, a conventional pole antenna is formed by adding an outer coil for supporting a radio function and an inner coil for supporting a communication band.

In this case, the frequency performance between the inner coil and the outer coil occurs, and when the two coils are in contact, the antenna performance is changed. Since several coils enter the pole antenna, the manufacturing cost of the pole antenna The cost was increased.

It is an object of the present invention to provide a pole antenna for a vehicle which is designed as one coil covering the AM, FM, LTE and V2X frequency bands, and a structure of the antenna.

In addition, the present embodiment has another object to provide a structure of an antenna for a car covering not only the AM, FM, LTE and V2X frequency bands but also the GNSS and SXM frequency bands.

According to one embodiment, there is provided a pole antenna for a vehicle that supports a plurality of frequency bands, comprising: a spiral coil portion having a monopole type; a spiral type coil portion extending from the coil portion to form a pitch change point section; And a micro antenna formed on a lower portion of the accessory coil.

The vehicle pole antenna may further include a coil mounting portion provided between the accessory coil portion and the micro antenna portion to mount a lower portion of the accessory coil portion.

The micro-antenna unit may cover a V2X (Vehicle to Everything) frequency band.

When the accessory coil part includes a first accessory coil part and a second accessory coil part that are divided into two parts starting from the center, the second accessory coil part and the micro antenna part cover an LTE (Long Term Evolution) high frequency band .

The first accessory coil part, the second accessory coil part, and the micro antenna part may cover a LTE (Long Term Evolution) Low frequency band.

The above-described pole antenna may have an antenna length operating from? / 12 to? / 4.

The micro-antenna unit may have an antenna length of 0.8 to 1.6 cm when the antenna has an antenna length of? / 4.

The second accessory coil part and the micro antenna part may have an antenna length of 2 to 4 cm when the antenna part has an antenna length of? / 4.

The first accessory coil part, the second accessory coil part and the micro antenna part may have an antenna length of 6 to 15 cm when the antenna part has an antenna length of? / 4.

The helical coil part, the accessory coil part, and the micro antenna part may have an antenna length of 70 to 90 cm when they have the antenna length operated by? / 4.

According to one embodiment, there is provided a structure of a vehicle antenna supporting a plurality of frequency bands, the case comprising: a case; And a base coupled to a lower portion of the case to form a pedestal.

The case mounts any of the above-described pole antennas, and the base can mount the Global Navigation Satellite Systems (GNSS) antenna and the SXM (Sirius XM) antenna.

The above-described pole antenna may have an antenna length operating from? / 12 to? / 4.

The micro-antenna unit may have an antenna length of 0.8 to 1.6 cm when the antenna has an antenna length of? / 4.

The second accessory coil part and the micro antenna part may have an antenna length of 2 to 4 cm when the antenna part has an antenna length of? / 4.

The first accessory coil part, the second accessory coil part and the micro antenna part may have an antenna length of 6 to 15 cm when the antenna part has an antenna length of? / 4.

The helical coil part, the accessory coil part, and the micro antenna part may have an antenna length of 70 to 90 cm when they have the antenna length operated by? / 4.

As described above, the present embodiment has advantageous advantages as compared with the existing structure.

First, this embodiment uses the existing composite pole antenna and / or the antenna structure applied thereto, thus reducing manufacturing costs such as cost, mold production cost, and mechanical reliability certification.

Second, the present embodiment can support a desired frequency band while using the existing antenna structure as it is.

Third, the present embodiment can be extended to Radio / DMB (DAB) / GNSS / SXM / LTE / V2X specifications without having to configure the antenna product according to the required specifications.

Fourth, since the size and shape of the antenna are not changed and the structure of the conventional small-sized pole antenna can be maintained, this embodiment can be actively applied to the market of an increasingly small SUV / CUV vehicle.

Fifth, since a conventional pole antenna needs to have an inner coil and an outer coil, if the antenna is bent or changed in shape, the defect occurrence ratio is high. However, since this embodiment supports multiple frequency bands using one coil, The occurrence rate can be remarkably reduced, and the working time is not increased because there is no increase in parts and the process is simple.

1 is a perspective view showing an example of a pole antenna for a vehicle according to an embodiment.
2 is a diagram illustrating a section of a pole antenna covered for each frequency band according to an exemplary embodiment.
3 to 5 are views illustrating the structure of a pole antenna according to an embodiment of the present invention.
6 is a perspective view showing an example of a vehicle antenna according to an embodiment.
FIG. 7 is a graph illustrating a result of measuring the standing wave ratio performance of the pole antenna of FIG. 4 according to an exemplary embodiment.
8 is a graph and a table showing a gain state of a pole antenna supporting the LTE frequency band of FIG.
FIG. 9 is a graph illustrating a result of measurement of the standing wave ratio performance of the pole antenna of FIG. 4 according to an embodiment.
10 is a graph and a table showing the gain states of the pole antenna 100 supporting the V2X frequency band of FIG.

The structure of a pole antenna to which the following embodiments are applied and an antenna using the same will be described in detail with reference to the drawings. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

It is also to be understood that the "and / or" disclosed in the following description includes any and all possible combinations of one or more of the listed related items.

It is also to be understood that the terms such as " comprise, "" comprise, "" comprise ", and the like, It is to be understood that the invention includes not only other elements but also other elements.

It is also to be understood that the singular expression "above " used in the description of the embodiments disclosed in the following specification and claims is intended to include plural representations unless the context clearly dictates otherwise.

Hereinafter, a structure of a pole antenna for a vehicle and a vehicle antenna using the same will be described in detail.

≪ Structure Example of Poles Antennas >

1 is a perspective view showing an example of a pole antenna for a vehicle according to an embodiment.

1, a pole antenna 100 for a vehicle according to an embodiment includes a coil part 110, an accessory coil part 120, a micro antenna part 130, and a coil mounting part 140 (not shown) to support a plurality of frequency bands. ).

First, the coil part 110 is provided at the top end of a pole antenna for a vehicle and has a monopole shape, and can be manufactured in a spiral structure. The helical structure may be of a similar shape, such as a spring, to generate a first resonance in a length shorter than the length of the antenna.

The accessory coil part 120 is formed to extend under the coil part 110 and can have a spiral structure like the coil part 110.

However, the coil part 110 may have a tight spiral structure, while the accessory coil part 120 may have a similar spiral structure.

The reason for having a similar boss forming structure is to form a pitch change point section 101 through the accessory coil part 120. In this case, the approximate central point of the accessory coil part 120 becomes the inflection point 101a.

As such, when the pitch change point section is formed, the accessory coil section 120 can generate the second resonance around the inflection point 101a due to the impedance change due to the pitch change. The occurrence of the second resonance is very beneficial for covering a plurality of frequency bands.

For example, it may help cover the AM / FM frequency band as well as the LTE (Long Term Evolution) High and Low frequency bands through the accessory coil section 120. This will be explained more clearly in the future.

The micro antenna unit 130 is formed under the accessory coil part 120 to further cover a microwave, e.g., a V2X (Vehicle to Everything) frequency band. However, the micro-antenna unit 130 may be formed on the lower portion of the accessory coil portion 120 through the coil mounting portion 140,

That is, the coil mounting portion 140 is provided between the accessory coil portion 120 and the micro antenna portion 130 to mount the lower portion of the accessory coil portion 120.

The coil mounting portion 140 is not a device for transmitting and receiving a radio communication frequency and may have a tentacle shape in order to mount a lower portion of the accessory coil portion 120. [

Hereinafter, a section of a pole antenna for a vehicle covered by each of the above-mentioned frequency bands will be described.

2 is a diagram illustrating a section of a pole antenna covered for each frequency band according to an exemplary embodiment.

Referring to FIG. 2, the accessory coil part 120 of the pole antenna 100 according to an embodiment includes a first accessory coil part 121 and a second accessory coil part 122, which are divided into two parts starting from the center. can do.

The first accessory coil part 121 and the second accessory coil part 122 may be divided from the inflection point.

In this case, the second auxiliary coil part 122 and the micro antenna part 130 cover an LTE (Long Term Evolution) High frequency band having a frequency range of 1710 to 2170 MHz, and the first auxiliary coil part 121 The second auxiliary coil section 122 and the micro antenna section 130 may cover an LTE (Long Term Evolution) Low frequency band having a frequency range of 700 to 900 MHz.

On the other hand, the micro antenna unit 130 may cover a V2X (Vehicle to Everything) frequency band having a frequency range of 5850 to 5925 MHz.

For this purpose, the pole antenna 100 for covering each frequency band may have an antenna length operating from? / 12 to? / 4. Preferably, it may have an antenna length that operates at lambda / 4.

Hereinafter, the second resonance frequency characteristic and the antenna length of the pole antenna 100 operating at? / 4 will be described.

3 to 5 are views illustrating the structure of a pole antenna according to an embodiment of the present invention.

3, a pole antenna 100 according to an exemplary embodiment may include a micro antenna unit 130 that covers a V2X frequency band.

At this time, the micro-antenna unit 130 may have an antenna length of? (0.051 m) / 4 for the frequency band of 5850 ~ 5925 MHz.

An antenna length operating at [lambda] (0.051 m) / 4 has an effective length of 0.8 to 1.6 cm, preferably an effective antenna length of 1.2 cm. However, the present invention is not limited thereto.

The effective antenna length may be the length of the antenna in a substantially straightened state, not in the coiled state.

4, the pole antenna 100 according to an exemplary embodiment may include a second auxiliary coil part 122 and a micro antenna part 130 that cover the LTE high frequency band.

At this time, the second accessory coil part 122 and the micro antenna part 130 have the antenna length L operating at? (0.157 m) / 4 for the frequency band of 1710 to 2170 MHz (LTE High frequency band) .

The antenna length operating at lambda (0.157 m) / 4 is designed to be an effective length of 2 to 4 cm, preferably to an effective antenna length of 3.9 cm. However, the present invention is not limited thereto.

The effective antenna length may be the length of the antenna in a substantially straightened state, not in the coiled state.

For example, the second resonant frequency appearing through the effective antenna length of 3.9 cm can be expressed as shown in FIG. The second resonance frequency shown in FIG. 4 can be expressed as a resonance frequency 104 that matches the LTE Low frequency on the inflection point 106 as shown on the left side.

4, a pole antenna 100 according to an embodiment includes a first auxiliary coil part 121, a second auxiliary coil part 122, and a micro antenna part 130 that cover an LTE Low frequency band. . ≪ / RTI >

At this time, the first accessory coil part 121, the second accessory coil part 122 and the micro antenna part 130 operate in the frequency range of 700 MHz to 900 MHz (LTE Low frequency band) with λ (0.375 m) / 4 Lt; / RTI > antenna length.

An antenna length operating at lambda (0.375 m) / 4 has an effective length of 6 to 15 cm, preferably an effective antenna length of 9.3 cm. However, the present invention is not limited thereto.

The effective antenna length may be the length of the antenna in a substantially straightened state, not in the coiled state.

For example, the second resonant frequency appearing through the effective antenna length of 9.3 cm can be expressed as a resonant frequency 105 that corresponds to the LTE high frequency as shown on the right side of the inflection point 106 as shown in FIG.

5, a pole antenna 100 according to an embodiment includes a helical coil part 110, an accessory coil part 120, and a micro antenna part 130 that cover an AM / FM frequency band .

At this time, the helical coil part 110, the accessory coil part 120, and the micro antenna part 130 have antenna lengths of? (3.06 m) / 4 for the frequency band 88 MHz to 108 MHz (AM / FM frequency band) Lt; / RTI >

The antenna length L operating at lambda (3.06 m) / 4 is designed as an effective length of 70 to 90 cm, preferably 76.5 cm. However, the present invention is not limited thereto.

The effective antenna length may be the length of the antenna in a substantially straightened state, not in the coiled state.

For example, the second resonant frequency appearing through the effective antenna length of 76.5 cm can be expressed as a resonant frequency 107 that corresponds to the AM / FM frequency band as shown on the left side around the inflection point 108 as shown in FIG.

3 through 5, since the antenna is designed to have the optimum antenna length together with the second resonance in order to cover a plurality of frequency bands through the pole antenna 100 having one coil, Thereby minimizing the manufacturing cost.

≪ Structural Example of Car Antenna >

6 is a perspective view showing an example of a vehicle antenna according to an embodiment.

Referring to FIG. 6, the vehicle antenna 200 according to one embodiment may include a case 210 and a base 220 to support a plurality of frequency bands.

The case 210 is equipped with a pole antenna 100 for supporting a plurality of frequency bands.

The pole antenna 100 may include a plurality of frequency bands, for example, LTE (Long Term Evolution) High frequency band using a single coil including a coil part 110 and an accessory coil part 120, LTE (Long Term Evolution) low frequency band, V2X (Vehicle to Everything) frequency band, and AM / FM frequency band.

For this purpose, the pole antenna 100 may include a coil part 110, an accessory coil part 120, a micro antenna part 130, and a coil mounting part 140 to support a plurality of frequency bands.

Since the features of each of these configurations are fully described in Figs. 1 to 5, the description thereof is omitted, and the present embodiment can be similarly applied.

In particular, when the configurations as shown in FIG. 2 are combined, the pole antenna 100 may have an antenna length operating from? / 12 to? / 4. In this case, the pole antenna 100 can cover all of the above-mentioned frequency bands when the antenna has an antenna length of? / 4.

For example, the micro antenna unit 130 described in FIGS. 1 to 5 is designed with an effective antenna length of 0.8 to 1.6 cm to cover the V2X (Vehicle to Everything) frequency band operating at? / 4, When combining the accessory coil part 122 and the micro antenna part 130, the effective antenna length may be designed to be 2 to 4 cm to cover the LTE High frequency band operating at? / 4.

In the case where the first accessory coil part 121, the second accessory coil part 122 and the micro antenna part 130 described in FIGS. 1 to 5 are combined, the LTE Low frequency band operating in? / 4 It can be designed with an effective antenna length of 6 to 15 cm to cover.

When the helical coil part 110, the accessory coil part 120 and the micro antenna part 130 are combined, an effective antenna length of 70 to 90 cm is required to cover the AM / FM frequency band operating at lambda / 4 . ≪ / RTI >

However, it is needless to say that the present invention is not limited to the above-described antenna length in the corresponding frequency band.

The reason why the plurality of frequency bands can be covered with the pole antenna 100 having one coil is that the auxiliary coil part 120 generating the second resonance around the inflection point 101a is divided into the helical coil part 110 As shown in FIG.

The example of the second resonance is omitted because it is fully described in Figs. 1 to 5, and the same can be applied to this embodiment.

Meanwhile, the base 220 according to one embodiment is coupled to the lower portion of the case 210 to serve as a pedestal. The base 220 may be equipped with a Global Navigation Satellite Systems (GNSS) antenna 221 and a Sirius XM (SXM) antenna 222.

Thus, by applying the pole antenna 100 supporting the multiple frequency bands to the vehicle antenna 200, the existing composite pole antenna and / or the antenna structure using the same can be used as it is. Thus, cost, mold production cost, It is possible to reduce the manufacturing cost.

<Measurement example 1>

FIG. 7 is a graph illustrating a result of measuring the standing wave ratio performance of the pole antenna of FIG. 4 according to an exemplary embodiment.

Referring to Fig. 7, the abscissa of the graph represents the frequency and the ordinate represents the standing wave ratio (VSWR). In this case, since the standing wave ratio VSWR is close to 1 in the LET high frequency band covered by the pole antenna 100 of FIG. 4, it can be seen that the pole antenna 100 of FIG. As a result, the LET High frequency band can be stably transmitted and received by the pole antenna 100 of FIG.

Needless to say, the pole antenna 100 refers to the second auxiliary coil part 122 and the micro antenna part 130.

In contrast, in the LTE Low frequency band covered by the pole antenna 100 of FIG. 4, the standing wave ratio is lower than that of the LTE High frequency band. However, since the pole antenna 100 of FIG. It will be able to receive the band stably.

The pole antenna 100 may refer to the first accessory coil part 121, the second accessory coil part 122, and the micro antenna part 130.

<Measurement example 2>

8 is a graph and a table showing a gain state of a pole antenna supporting the LTE frequency band of FIG.

Referring to FIG. 8, the graph shows the radiation intensity in an arbitrary direction. When there is no resistance loss in the pole antenna 100 covering the LTE frequency band in FIG. 7, Which is the same as the directivity gain.

For example, in the table, it can be seen that the antenna has a good gain value for each LTE frequency at an angle of 60 degrees with the maximum radiation intensity.

<Measurement example 3>

FIG. 9 is a graph illustrating a result of measurement of the standing wave ratio performance of the pole antenna of FIG. 4 according to an embodiment.

Referring to FIG. 9, the abscissa of the graph represents the frequency and the ordinate represents the standing wave ratio (VSWR). In this case, in the V2X frequency band covered by the pole antenna 100 of FIG. 3, the VSWR is closest to 1, so that the pole antenna 100 of FIG. As a result, the V2X frequency band can be stably transmitted and received in the pole antenna 100 of FIG.

The pole antenna 100 may be referred to as a micro antenna unit 130.

<Measurement example 4>

10 is a graph and a table showing gain states of a pole antenna supporting the V2X frequency band of FIG.

Referring to Fig. 10, the graph shows the radiant intensity in any direction. When there is no resistance loss in the pole antenna 100 covering the V2X frequency band in Fig. 9, Which is the same as the directivity gain.

For example, in the table, it can be seen that V2X frequency has a good gain value at an angle of 60 degrees with the maximum radiation intensity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. You can understand that you can do it. The embodiments described above are therefore to be considered in all respects as illustrative and not restrictive.

100: pole antenna 110: coil part
120: Accessory coil part 130: Micro antenna part
140: coil mounting portion 200: car antenna
210: Case 220: Base
221: GNSS antenna 222: SXM antenna

Claims (16)

1. A pole antenna for a vehicle that supports a plurality of frequency bands,
A spiral coil portion having a monopole type;
A spiral accessory coil portion extending from a lower portion of the helical coil portion to form a pitch change point section that is a reference for covering the plurality of frequency bands;
A micro-antenna unit formed at a lower portion of the spiral accessory coil part via a coil mounting part below; And
And a coil mounting portion provided between the helical accessory coil portion and the micro antenna portion for mounting a lower portion of the accessory coil portion,
And a plurality of antenna elements. The method according to claim 1,
A coil mounting portion provided between the accessory coil portion and the micro antenna portion for mounting a lower portion of the accessory coil portion;
Wherein the antenna further comprises: The method according to claim 1,
The micro-
Vehicle pole antenna that covers the V2X (Vehicle to Everything) frequency band. The method according to claim 1,
The sub-
When the first accessory coil part and the second accessory coil part, which are divided into two parts starting from the center, are provided,
Wherein the second accessory coil part and the micro-
Long Term Evolution (LTE) An antenna for a car that covers the high frequency band. 5. The method of claim 4,
Wherein the first accessory coil part, the second accessory coil part, and the micro-
Long Term Evolution (LTE) A pole antenna for a vehicle that covers the low frequency band. 6. The method according to any one of claims 1 to 5,
The pole antenna includes:
And an antenna length operating in a range of? / 12 to? / 4 around the pitch change point interval. The method according to claim 6,
The micro-
And has an antenna length of 0.8 to 1.6 cm when the antenna has an antenna length of? / 4. The method according to claim 6,
Wherein the second accessory coil part and the micro-
And having an antenna length of? / 4, and having an antenna length of 2 to 4 cm. The method according to claim 6,
Wherein the first accessory coil part, the second accessory coil part, and the micro-
And has an antenna length of 6 to 15 cm when the antenna has an antenna length of? / 4. The method according to claim 6,
Wherein the helical coil part, the accessory coil part and the micro-
And has an antenna length of 70 to 90 cm when the antenna has an antenna length of? / 4. A structure of a vehicle antenna supporting a plurality of frequency bands,
case; And a base coupled to a lower portion of the case to form a pedestal,
In this case,
Wherein a pole antenna according to any one of claims 1, 2, 3, 4, 5,
The base includes:
Structure of an automotive antenna with Global Navigation Satellite Systems (GNSS) antennas and Sirius XM (SXM) antennas. 12. The method of claim 11,
The pole antenna includes:
And a length of the antenna operating in a range of lambda / 12 to lambda / 4 around the pitch change point interval. 13. The method of claim 12,
The micro-
The antenna structure of the vehicle has an antenna length of 0.8 to 1.6 cm when the antenna length is set to lambda / 4. 13. The method of claim 12,
Wherein the second accessory coil part and the micro-
The antenna structure of the vehicle having the antenna length of 2 to 4 cm when the antenna length is set to lambda / 4. 13. The method of claim 12,
Wherein the first accessory coil part, the second accessory coil part, and the micro-
Wherein the antenna length is 6 to 15 cm when the antenna has a length of? / 4. 13. The method of claim 12,
Wherein the helical coil part, the accessory coil part and the micro-
When the antenna length is set to lambda / 4, Structure of an antenna for a vehicle having an antenna length of 70 to 90 cm.
KR1020150133961A 2015-09-22 2015-09-22 For vehicle pole antenna and antenna structure having the same KR101704572B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150133961A KR101704572B1 (en) 2015-09-22 2015-09-22 For vehicle pole antenna and antenna structure having the same

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Application Number Priority Date Filing Date Title
KR1020150133961A KR101704572B1 (en) 2015-09-22 2015-09-22 For vehicle pole antenna and antenna structure having the same

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130127669A (en) * 2012-05-15 2013-11-25 인팩일렉스 주식회사 Vehicle antenna for broadcasting and communication
KR20140075067A (en) * 2012-12-10 2014-06-19 인팩일렉스 주식회사 Small antenna apparatus for vehicle and manufacturing method therefor
KR20150089490A (en) * 2014-01-28 2015-08-05 현대자동차주식회사 Multiple band antenna for vehicle and manufacturing method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130127669A (en) * 2012-05-15 2013-11-25 인팩일렉스 주식회사 Vehicle antenna for broadcasting and communication
KR20140075067A (en) * 2012-12-10 2014-06-19 인팩일렉스 주식회사 Small antenna apparatus for vehicle and manufacturing method therefor
KR20150089490A (en) * 2014-01-28 2015-08-05 현대자동차주식회사 Multiple band antenna for vehicle and manufacturing method thereof

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