KR101669607B1 - Ultra-compact Ultra wideband antenna Having backed radiator - Google Patents

Ultra-compact Ultra wideband antenna Having backed radiator Download PDF

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Publication number
KR101669607B1
KR101669607B1 KR1020150079410A KR20150079410A KR101669607B1 KR 101669607 B1 KR101669607 B1 KR 101669607B1 KR 1020150079410 A KR1020150079410 A KR 1020150079410A KR 20150079410 A KR20150079410 A KR 20150079410A KR 101669607 B1 KR101669607 B1 KR 101669607B1
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South Korea
Prior art keywords
radiation patch
length
constant length
matching
radiation
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KR1020150079410A
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Korean (ko)
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이재용
임나경
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주식회사 씨비클라인
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground

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Abstract

The present invention relates to a microminiature ultra-wideband antenna provided with a rear radiation patch for forming a slot in a rectangular radiation patch in which a metallic material is applied on the upper and lower portions of a dielectric substrate having an arbitrary dielectric constant to induce frequency adjustment, matching and notch characteristics .
Accordingly, the present invention satisfies the frequency band of 3.2 ㎓ to 7 ㎓ above the lower UWB communication system, and it is effective to miniaturize the antenna and apply it to wireless USB, MP3, mobile phone and all small-sized wired and wireless devices, It is effective to reduce the manufacturing cost of an antenna by using an inexpensive dielectric substrate having a high loss tangent value and to perform frequency adjustment, matching and frequency bridging in one slot without additional device and structure change.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ultra-compact Ultra wideband antenna having a backside radiation patch,

The present invention relates to a microwave ultra-wide band antenna having a rear radiation patch, and more particularly, to a microwave antenna having a rectangular radiation patch formed by applying a metallic material to the upper and lower portions of a dielectric substrate having a dielectric constant, The present invention relates to an ultra-small UWB antenna having a rear radiation patch for inducing a Notch characteristic.

The UWB communication system is a wireless technology developed by the US Department of Defense in the 1960s for the first military purpose. It uses low power in a very wide frequency band of several to several tens GHz and transmits at a rate 10 times higher than IEEE 802.11a (54Mbps) Or more to 500 MbPs to 1 Gbps.

The UWB communication system, which is the most important element in the UWB communication system, has an antenna pattern omnidirectional with respect to all frequencies of the band of interest, a small phase shift, no distortion of signals in pulse communication, Particularly, in order to ensure mobility, there has been a demand for an antenna having a small size, easy fabrication, and low manufacturing cost.

1, the dielectric 10 includes a trapezoidal radiation patch 20, which is connected to the feeder line 30 to apply a current thereto, The ground 40 is a CPW structure located on top of the dielectric 10 and induces matching of the antenna using two matching steps 50 and 60 and forms a notch slot 70 on top of the trapezoidal radiation patch 20 To block the WLAN frequency band.

However, the conventional ultra-wideband antenna has a problem that the size of the antenna is so large that its application field is limited, additional matching elements are required for antenna matching, and additional notched slots are required to induce the notch characteristic.

As a technology related to an ultra-wideband antenna, Korean Patent Registration No. 10-1113888, which is an ultra-wideband communication small antenna, includes an insulating substrate, a conductor formed on one surface of the insulating substrate, And a radiator which emits energy by exciting the energy by the applied current. The radiator includes a first region formed in a semicircular shape and a second region formed in a rectangular shape opposite to the first region A plurality of first tabs having a rectangular shape and a plurality of second tabs having a rectangular shape smaller than the first tabs are formed in the second region.

However, the above-mentioned prior art also has a problem that the size of the antenna is so large that the application field is limited and the structure is complicated, so that it is not easy to manufacture and the manufacturing cost is high.

Patent Document 1. Korean Patent Publication No. 10-1113888 discloses a small antenna for ultra-wideband communication

Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to reduce the size of an antenna while using an inexpensive substrate and to provide matching and notch characteristics with only one slot without additional matching elements and notch slots .

According to an aspect of the present invention, there is provided an ultra-small UWB antenna having a rear radiation patch, comprising: a dielectric substrate; a metallic material for inducing energy radiation on the rear surface of the dielectric substrate; A first radiation patch applied in a rectangular shape of 20 to 9 mm in length and a metallic material for inducing energy radiation on the entire surface of the dielectric substrate in a rectangular shape of 20 mm to 9 mm in length and 20 mm to 9 mm in length A second radiation patch, a feed line configured to extend from a lower end of the rectangular radiation patch, a first ground disposed on the left and right with respect to the feed line, and a second ground formed on the second radiation patch, The second radiation patch facing the lower end of the second radiation patch extending from the feed line while being spaced apart from the right end of the radiation patch by a predetermined distance, A slot formed to extend in a second predetermined length in the direction of the left end of the second radiation patch to induce frequency adjustment, matching, and notch characteristics, and a slot disposed below the lower end of the first radiation patch And a lower hole penetrating the dielectric substrate in the first radiation patch and the second radiation patch.

As described above, the present invention satisfies the frequency band of 3.2 ㎓ to 7 ㎓ above the lower UWB communication system, and has an effect of miniaturizing the antenna and applying it to wireless USB, MP3, mobile phone, and all miniaturized wired / Structure and a low loss tangent value, it is effective to reduce the manufacturing cost of an antenna and to perform frequency adjustment, matching, and frequency bridging in one slot without additional device and structure change .

1 shows a conventional ultra wideband antenna configuration diagram
FIG. 2 is a schematic diagram of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention
FIG. 3 is a perspective view of various embodiments of a slot according to another embodiment of the present invention.
FIG. 4 is a graph showing a VSWR graph of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention.
FIG. 5 is a graph illustrating a reflection loss graph according to the presence or absence of a backside radiation patch of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention.
FIG. 6 is a graph illustrating a reflection loss graph of a frequency adjustment and matching when a slot length is changed in a micro-UWB antenna having a rear radiation patch according to an embodiment of the present invention.
FIG. 7 is a graph illustrating a change in the notch reflection loss when a slot length of a very small UWB antenna having a rear radiation patch according to an embodiment of the present invention is changed.

Best Mode for Carrying Out the Invention Hereinafter, a configuration and an operation of a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a schematic view of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention. The ultra-small UWB antenna with the rear radiation patch includes a dielectric substrate 100 and a first radiation patch 200, The second radiation patch 300, the feeder line 400, the first ground 500, the slot 600, the second ground 700, and the via hole 800.

More specifically, the dielectric substrate 100 is a substrate having a dielectric constant.

That is, it is preferable that the dielectric substrate 100 is an inexpensive FR-4 substrate having a dielectric constant of 4.3, a loss tangent of 0.025, and a thickness of 0.8 mm.

The first radiation patch 200 is applied in a square shape having a width of 20 mm to 9 mm and a length of 20 mm to 9 mm to induce energy radiation from the rear surface of the dielectric substrate 100.

The second radiation patch 300 is applied to the entire surface of the dielectric substrate 100 in a rectangular shape having a width of 20 mm to 9 mm and a length of 20 mm to 9 mm.

In this case, one of the first radiation patch 200 and the second radiation patch 300 is a non-feed patch and the other is a feed patch. In particular, the second radiation patch 300 includes a slot 600, Respectively.

2, the first radiation patch 200 of the first and second radiation patches 200 and 300 operates in a higher frequency band than the center frequency of the used frequency band, The second radiation patch 300 operates in a lower frequency band below the center frequency of the used frequency band to satisfy the desired UWB frequency band.

Particularly, the first and second radiation patches 200 and 300 are preferably applied in a rectangular shape with a width of 20 mm to 9 mm and a length of 20 mm to 9 mm, 10 mm, and 10 mm in length are ideal.

The feeder line 400 is configured to extend from the lower end of the second radiation patch 300 having a rectangular shape.

That is, the feeder line is used to supply the transmitter output to the antenna and is arranged to be separated by the feeder line 400, such as A, B shown in FIG. 2 (a) And the patch 300 is extended.

The first ground 500 is disposed on the left and right with respect to the feed line 400.

That is, as shown in FIG. 2 (a), the first ground 500 is extended to any end of the second radiation patch 300, so that the first ground 500 is divided into two, 2 (a) to extend to the lower end of the second radiation patch 300. As shown in Fig.

The slot 600 is formed in the second radiation patch 300 and is spaced apart from the right end of the second radiation patch 300 by a predetermined distance so that the second radiation patch 300, The first radiation patch 300 has a first predetermined length in the direction of the upper end of the second radiation patch 300 and a second predetermined length in the direction of the left end of the second radiation patch 300 to induce frequency adjustment, do.

That is, in the slot 600, the antenna operating frequency, the matching frequency and the notch frequency band are selected according to the first and second constant lengths, the first constant length is 2 mm to 8 mm, the second constant length is 3 mm 4 mm, but is not particularly limited thereto.

As a result, the slot 600 is'

Figure 112015054165786-pat00001
&Quot; and "
Figure 112015054165786-pat00002
'Shape is preferably formed by changing the angle depending on the condition without forming the right angle.

The second ground 700 is disposed below the lower end of the first radiation patch.

The lower hole 800 is formed to penetrate the dielectric substrate 100 in the first radiation patch 200 and the second radiation patch 300.

That is, the lower hole 800 is formed to penetrate the dielectric substrate 100 to connect the first radiation patch 200 and the second radiation patch 300.

FIG. 3 is a diagram illustrating various configurations of a slot according to an exemplary embodiment of the present invention. Referring to FIG. 3, (a), (b), (c), (d), (e) ), and (h) will be described.

The slot 601 shown in FIG. 3 is formed in the second radiation patch 300 and extends from the right end of the second radiation patch 300 toward the left end of the second radiation patch 300 A third constant length is formed, and at the same time, a fourth constant length is formed in the direction of the upper end of the second radiation patch 300 while extending to the third constant length to induce frequency adjustment, matching, and notch characteristics.

As a result, the slot 601 is'

Figure 112015054165786-pat00003
&Quot; and "
Figure 112015054165786-pat00004
'Shape is preferably formed by changing the angle depending on the condition without forming the right angle.

A slot 602 shown in FIG. 3 (b) is formed in the second radiation patch 300 and is spaced apart from the right end of the second radiation patch 300 by a predetermined distance, A fifth constant length is formed in the direction of the upper end of the second radiation patch 300 facing the lower end of the radiation patch 300 and a sixth constant length is formed in the direction of the right end of the second radiation patch 300 Frequency adjustment and matching and notch characteristics.

As a result, the slot 602 is'

Figure 112015054165786-pat00005
&Quot; and "
Figure 112015054165786-pat00006
'Shape is preferably formed by changing the angle depending on the condition without forming the right angle.

The slot 603 shown in FIG. 3 (c) is formed in the second radiation patch 300 and is spaced apart from the right end of the second radiation patch 300 by a predetermined distance, A seventh constant length is formed in the direction of the upper end of the second radiation patch 300 facing the lower end of the radiation patch 300 and an eighth constant length protrudes laterally from the upper end and the lower end of the seventh constant length Frequency adjustment and matching and notch characteristics.

As a result, the slot 603 is'

Figure 112015054165786-pat00007
&Quot; and "
Figure 112015054165786-pat00008
'It is also preferable that the portion formed by the coupling is formed not by a right angle but by changing the angle according to the condition.

A slot 604 shown in FIG. 3 (d) is formed in the second radiation patch 300 and is spaced apart from the right end of the second radiation patch 300 by a predetermined distance, And a ninth constant length is formed in the direction of the upper end of the second radiation patch 300 facing the lower end of the radiation patch 300. At the same time, A 10th constant length is formed so as to protrude to the left and right to induce frequency adjustment, matching and notch characteristics.

As a result, the slot 604 is'

Figure 112015054165786-pat00009
&Quot; and "
Figure 112015054165786-pat00010
'It is also preferable that the portion formed by the coupling is formed not by a right angle but by changing the angle according to the condition.

A slot 605 shown in FIG. 3 (e) is formed in the second radiation patch 300 and is spaced apart from a right end of the second radiation patch 300 by a predetermined distance, The first radiation patch 300 is formed to have an eleventh constant length in the direction of the upper end of the second radiation patch 300 facing the lower end of the radiation patch 300 and at the same time to be connected to the 11th constant length end toward the upper end of the second radiation patch 300 The 12th constant length on one side is formed in a V-shaped 12th constant length longer than the other side on the other side to induce frequency adjustment, matching and notch characteristics.

As a result, the slot 605 is'

Figure 112015054165786-pat00011
&Quot; and "
Figure 112015054165786-pat00012
'Shape is preferably formed by changing the angle of the V-shape formed by the coupling according to conditions.

In particular, it is preferable that the constant length of 12-1 and the constant length of 12-2 are the same.

A slot 606 shown in FIG. 3 (f) is formed in the second radiation patch 300 and is formed to have a thirteenth constant length from the right end of the second radiation patch 300 to the left, The first radiation patch 300 is formed to have a length of 14-1 constant length in the direction of the upper end of the second radiation patch 300 and a 14-2 constant length is formed in the direction of the right end of the second radiation patch 300 A certain length is formed to induce frequency adjustment, matching and notch characteristics.

As a result, the slot 606 is'

Figure 112015054165786-pat00013
&Quot; and "
Figure 112015054165786-pat00014
'It is also preferable that the portion formed by the coupling is formed not by a right angle but by changing the angle according to the condition.

A slot 607 shown in FIG. 3 is formed in the second radiation patch 300 and is spaced apart from the right end of the second radiation patch 300 by a predetermined distance, A 15th constant length is formed in the direction of the upper end of the second radiation patch 300 from the end to induce frequency adjustment, matching, and notch characteristics.

As a result, the slot 607 is'

Figure 112015054165786-pat00015
'Shape.

A slot 608 shown in FIG. 3 is formed in the second radiation patch 300 and extends from the right end of the second radiation patch 300 toward the left end of the second radiation patch 300. 16 lengths are formed to induce frequency adjustment and matching and notch characteristics.

As a result, the slot 608 is'

Figure 112015054165786-pat00016
'Shape.

The above-described slots 600, 601, 602, 603, 604, 605, 606, 607 and 608 can be formed in the first radiation patch 200, appear.

The slots 600, 601, 602, 603, 604, 605, 606, 607, 608 constitute a first radiation patch 200 and the second radiation patch 300 comprises slots 600, 604, 605, 606, 607, 608 are formed.

FIG. 4 is a graph illustrating VSWR of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention. When VSWR <3, FIG.

FIG. 5 is a graph illustrating reflection loss depending on the presence or absence of a first radiation patch in a very small UWB antenna having a rear radiation patch according to an embodiment of the present invention. In the absence of the first radiation patch, And when the first radiation patch exists, the high frequency band is satisfied.

FIG. 6 is a graph illustrating reflection loss when a frequency is adjusted and a length of a matching slot is changed in a very small UWB antenna having a rear radiation patch according to an embodiment of the present invention,

Figure 112015054165786-pat00017
'The shorter the upper horizontal length of the shape slot, the better the frequency match, but the frequency shifted to the right (higher frequency direction), and the longer the slot, the lower the frequency shifted to the left It can be confirmed that the frequency matching degree is deteriorated.

FIG. 7 is a schematic view of an ultra-small UWB antenna having a rear radiation patch according to an embodiment of the present invention.

Figure 112015054165786-pat00018
'As the slot length is longer, the frequency notch characteristic appears, and it moves to the lower frequency side. It is also possible to select the frequency band to be blocked by adjusting the slot length have.

6 and 7, the frequency adjustment, matching, and notch characteristic are designed while adjusting the length of each part of the slot shape in one slot.

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 disclosed exemplary embodiments, It is not used to limit the scope.

Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: dielectric substrate 200: first radiation patch
300: second radiation patch 400: feed line
500: first ground
600, 601, 602, 603, 604, 605, 606, 607, 608: Slot
700: second ground 800: via hole

Claims (11)

A dielectric substrate;
A first radiation patch applied on the rear surface of the dielectric substrate in a rectangular shape having a width of 20 mm to 9 mm and a length of 20 mm to 9 mm;
A second radiation patch applied on the entire surface of the dielectric substrate in a square shape having a width of 20 mm to 9 mm and a length of 20 mm to 9 mm;
A feeder line configured to extend from a lower end of the second radiation patch of the rectangular shape;
A first ground disposed on the left and right sides of the feed line;
A first predetermined length is formed in the second radiation patch in the direction of the upper end of the second radiation patch facing at the lower end of the second radiation patch extending from the right end of the second radiation patch, A slot formed to extend in a second predetermined length in a direction toward the left end of the second radiation patch to induce frequency adjustment and matching and notch characteristics;
A second ground disposed below the lower end of the first radiation patch; And
Wherein the first radiation patch and the second radiation patch are made of a rubbing hole penetrating the dielectric substrate,
Wherein the slot is configured as a first radiation patch and the second radiation patch is configured as a first radiation patch before a slot is formed. &Lt; RTI ID = 0.0 &gt; 31. &lt; / RTI &gt;
The connector according to claim 1,
A third radiation patch formed on the second radiation patch and extending from the right end of the second radiation patch toward the left end of the second radiation patch and extending to the third predetermined length, And a fourth constant length is formed by the first and second radiation patches to induce frequency adjustment, matching, and notch characteristics.
The connector according to claim 1,
A fifth predetermined length is formed in the second radiation patch in the direction of the upper end of the second radiation patch facing the lower end of the second radiation patch extending from the right end of the second radiation patch, Wherein the second radiation patch has a sixth predetermined length extending in a direction toward the right end of the second radiation patch to induce frequency adjustment, matching, and notch characteristics.
The connector according to claim 1,
And a seventh constant length is formed in the direction of the upper end of the second radiation patch facing the lower end of the second radiation patch in which the feed line is extended while being spaced apart from the right end of the second radiation patch by a predetermined distance Wherein the antenna is coupled between the upper and lower ends of the seventh constant length to protrude left and right by an eighth predetermined length to induce frequency adjustment, matching, and notch characteristics.
The connector according to claim 1,
And a ninth constant length is formed in the direction of the upper end of the second radiation patch facing the lower end of the second radiation patch in which the feed line is extended while being spaced apart from the right end of the second radiation patch by the second radiation patch And a tenth constant length is formed to protrude laterally from the ninth constant length end toward the upper end of the second radiation patch to induce frequency adjustment, matching, and notch characteristics. Ultra-small Ultra-Wideband Antenna.
The connector according to claim 1,
An eleventh constant length is formed in the direction of the upper end of the second radiation patch facing the lower end of the second radiation patch in which the feed line is extended while being spaced apart from the right end of the second radiation patch by the second radiation patch And a 12th constant length on one side is formed in a V-shaped length longer than the other 12-2 constant length on one side while being coupled to the 11th constant length end toward the upper end of the second radiation patch, Wherein the tuning and matching and notch characteristics are derived.
The connector according to claim 1,
A first radiation patch formed on the second radiation patch and formed to have a thirteenth constant length from the right end of the second radiation patch to the left and extending to the thirteenth constant length, And a fourth constant length is formed to extend in the direction of the right end of the second radiation patch by a constant length of 14-2 so as to induce frequency adjustment and matching and notch characteristics. Ultra - wideband antenna.
The connector according to claim 1,
The second radiation patch is formed at a predetermined length from the lower end of the second radiation patch to the upper end of the second radiation patch while being spaced apart from the right end of the second radiation patch by a predetermined distance to form a frequency adjustment, Wherein the antenna has a backside radiation patch.
The connector according to claim 1,
Wherein the second radiation patch is formed on the second radiation patch and has a constant length from the right end of the second radiation patch toward the left end of the second radiation patch to induce frequency adjustment, matching, and notch characteristics. An ultra-small ultra-wideband antenna.
delete The method according to claim 1,
Characterized in that the first radiation patch operates in a higher frequency band above the center frequency of the frequency band of use and the second radiation patch operates in a lower frequency band below the center frequency of the frequency band of use. Broadband antenna.
KR1020150079410A 2015-06-04 2015-06-04 Ultra-compact Ultra wideband antenna Having backed radiator KR101669607B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020192531A1 (en) * 2019-03-28 2020-10-01 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna module and electronic device
WO2020262942A1 (en) * 2019-06-25 2020-12-30 주식회사 아모텍 Uwb antenna module
KR20220020104A (en) * 2020-08-11 2022-02-18 충북대학교 산학협력단 Ultra-wide band antenna with rectangular notch, and manufacturing method thereof
CN114094326A (en) * 2021-11-04 2022-02-25 天津大学 UWB antenna gain improvement structure for WLAN applications

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KR20110076528A (en) * 2009-12-29 2011-07-06 전자부품연구원 Ultra-wide band antenna
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KR20080002346A (en) * 2006-06-30 2008-01-04 (주)파트론 Dual band patch antenna for zigbee system
KR100757090B1 (en) * 2006-08-02 2007-09-10 한양대학교 산학협력단 Multi-band monopole antena
KR101113888B1 (en) 2007-02-23 2012-03-02 삼성테크윈 주식회사 Small size antenna for ultra wide band communication
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020192531A1 (en) * 2019-03-28 2020-10-01 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna module and electronic device
US11056771B2 (en) 2019-03-28 2021-07-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna module and electronic device
WO2020262942A1 (en) * 2019-06-25 2020-12-30 주식회사 아모텍 Uwb antenna module
KR20210000519A (en) * 2019-06-25 2021-01-05 주식회사 아모텍 Ultra wide band antenna module and combo antenna module
KR102322994B1 (en) * 2019-06-25 2021-11-09 주식회사 아모텍 Ultra wide band antenna module
KR20220020104A (en) * 2020-08-11 2022-02-18 충북대학교 산학협력단 Ultra-wide band antenna with rectangular notch, and manufacturing method thereof
KR102422214B1 (en) * 2020-08-11 2022-07-15 충북대학교 산학협력단 Ultra-wide band antenna with rectangular notch, and manufacturing method thereof
CN114094326A (en) * 2021-11-04 2022-02-25 天津大学 UWB antenna gain improvement structure for WLAN applications

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