KR101356429B1 - Dual band antenna device - Google Patents

Dual band antenna device Download PDF

Info

Publication number
KR101356429B1
KR101356429B1 KR1020120071805A KR20120071805A KR101356429B1 KR 101356429 B1 KR101356429 B1 KR 101356429B1 KR 1020120071805 A KR1020120071805 A KR 1020120071805A KR 20120071805 A KR20120071805 A KR 20120071805A KR 101356429 B1 KR101356429 B1 KR 101356429B1
Authority
KR
South Korea
Prior art keywords
antenna
slot
half
slot antenna
integrated
Prior art date
Application number
KR1020120071805A
Other languages
Korean (ko)
Other versions
KR20140004363A (en
Inventor
조동호
윤창배
박대희
민태홍
Original Assignee
한국과학기술원
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 한국과학기술원 filed Critical 한국과학기술원
Priority to KR1020120071805A priority Critical patent/KR101356429B1/en
Publication of KR20140004363A publication Critical patent/KR20140004363A/en
Application granted granted Critical
Publication of KR101356429B1 publication Critical patent/KR101356429B1/en

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28Arrangements for establishing polarisation or beam width over two or more different wavebands
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061Two dimensional planar arrays
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way

Abstract

The present invention relates to a dual band antenna device, comprising a first antenna unit having a first size including a plurality of slot antennas operating in a first frequency band, and a plurality of half slot antennas operating in a second frequency band. And a second antenna portion of a second size, wherein the first antenna portion and the second antenna portion are integrated on a plane having the second size.
Accordingly, by providing a dual band antenna device in which a plurality of slot antennas are integrated in a plane in which a plurality of half slot antennas are integrated, a transmission capacity can be increased in a limited space using a deviator diversity and an antenna multiplexing technique. There is an advantage to overcome the constraints of the antenna installation space.

Description

Dual Band Antenna Unit {DUAL BAND ANTENNA DEVICE}

The present invention relates to a dual band antenna device, and more particularly, to a dual band antenna device in which a plurality of slot antennas and a plurality of half slot antennas are integrated on a single plane.

As is known, the slot antenna mainly uses a structure in which a straight slot of a certain size is dug out into a flat metal plate. Looking at the relationship between the length (L), the width (d) and the wavelength (λ) of the linear slot in such a slot antenna, L = λ / 2, d <<λ, the width (d) has a very short structural features.

Since such a slot antenna is large in size to be integrated in a limited space, a spiral slot may be used to further reduce the size of the slot antenna.

Slot antennas using spiral slots are arranged on a flat metal plate with a straight slot with short boundary conditions at both ends, and two spiral slots arranged on both ends of the straight slot to be symmetrical with respect to the straight slot. It is a structure having a spiral slot. Here, the helical slot acts as an inductor, thereby making a miniaturized slot antenna having a constant resonance frequency while reducing the length of the slot.

Meanwhile, the slot antenna using the spiral slot can be further miniaturized using the half slot antenna structure.

The basic half-slot antenna has a flat metal plate with straight slots, one of which is short and one of which is open. Therefore, radiation occurs at a frequency of λ = 4 · L. In this half-slot antenna, two spiral slots can be arranged to be symmetrical with respect to the straight slot at one end of the straight slot at both ends of the straight slot, thereby making the size smaller.

Although research efforts for miniaturizing slot antennas and half slot antennas have been continued in accordance with these conventional techniques, they are facing limitations, and both slot antennas and half slot antennas are installed, such as base stations of a mobile communication system using dual bands. In the environment to be installed, there is a problem that it is difficult to install the slot antenna and the half slot antenna, respectively, due to the limited installation space.

Registration No. 10-047001, published February 4, 2005.

The present invention has been proposed to solve the problems of the prior art as described above, and provides a dual band antenna device in which a plurality of slot antennas are integrated together in a plane in which a plurality of half slot antennas are integrated, thereby limiting the antenna installation space. To overcome.

According to an aspect of the present invention, a dual band antenna device includes a first antenna unit having a first size including a plurality of slot antennas operating in a first frequency band, and a plurality of half slot antennas operating in a second frequency band. And a second antenna unit having a second size, wherein the first antenna unit and the second antenna unit are integrated on a plane having the second size.

Here, the second antenna unit, the first half-slot antenna and the fourth half-slot antenna is integrated in each of the four corner regions of the square plane having a size of λ / 2, the first antenna unit, the center of the square plane In comparison with the point, the first slot antenna and the second slot antenna may be integrated in a central rectangular area where the center point coincides.

The first antenna portion, when setting one orthogonal axis on the square plane having the first size and thereby dividing into first to fourth quadrants, the first slot antenna is integrated in the first quadrant and the third quadrant The second slot antenna may be integrated in the second slot antenna, or the first slot antenna may be integrated in the second quadrant and the second slot antenna may be integrated in the fourth quadrant.

The first slot antenna and the second slot antenna, when setting one horizontal axis (or vertical axis) on any one of the first to fourth quadrants, thereby dividing the first and second slot antennas into first and second And a straight slot having a boundary condition of both ends is disposed on the horizontal axis (or a vertical axis), and the first bisection and the second biplane are symmetrical with respect to the horizontal axis (or the vertical axis) at both ends of the straight slot. Spiral slots may each be disposed in the quadrant.

The first half slot antenna and the fourth half slot antenna have a horizontal axis (or vertical axis) when setting one horizontal axis (or vertical axis) on the corner region and thereby dividing the first half and second half planes. The boundary condition at one end is short and the boundary condition at the other end is open, and a straight slot is disposed, and the horizontal axis (or Spiral slots may be disposed in the first and second biplanes so as to be symmetric with respect to the vertical axis).

The first half slot antennas and the fourth half slot antennas may be arranged such that the ends of the straight slots having the boundary condition open toward different directions.

According to an embodiment of the present invention, by providing a dual band antenna device in which a plurality of slot antennas are integrated together in a plane in which a plurality of half slot antennas are integrated, a transmission capacity using a deflection diversity and an antenna multiplexing technique in a limited space, etc. It can be increased to overcome the constraints of the antenna installation space.

1 is a block diagram of a dual band antenna device according to an embodiment of the present invention.
2 is a configuration diagram of a first antenna unit having a slot antenna structure included in a dual band antenna device according to an exemplary embodiment of the present invention.
3 is a diagram illustrating a slot antenna structure of a first antenna unit included in a dual band antenna device according to an exemplary embodiment of the present invention.
4 is a configuration diagram of a second antenna unit having a half slot antenna structure included in a dual band antenna device according to an exemplary embodiment of the present invention.
5 is a block diagram illustrating a half slot antenna structure of a second antenna unit included in a dual band antenna device according to an exemplary embodiment of the present invention.
6 is a characteristic graph of the S-parameters of a single slot antenna radiating at 26.6 GHz.
7 is a characteristic graph of the S-parameters of a single half slot antenna radiating at 1.98 GHz.
8 is a characteristic graph of a 26 GHz band S-parameter by the dual band antenna device according to an exemplary embodiment of the present invention.
9 is a characteristic graph of 26 GHz band interference by the dual band antenna device according to the embodiment of the present invention.
10 is a characteristic graph of a 2 GHz band S-parameter by the dual band antenna device according to an embodiment of the present invention.
11 is a characteristic graph of the 2 GHz band interference amount by the dual band antenna device according to an embodiment of the present invention.
12 is a configuration diagram of a dual band antenna device according to another embodiment of the present invention.
13 is a configuration diagram of a dual band antenna device according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In describing the embodiments of the present disclosure, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted. Terms to be described below are terms defined in consideration of functions in the embodiments of the present invention, and may vary according to intentions or customs of users or operators. Therefore, the definition should be based on the contents throughout this specification.

1 is a block diagram of a dual band antenna device according to an embodiment of the present invention.

As shown therein, the dual band antenna device 100 includes a first antenna unit 110 having a first size including a plurality of slot antennas operating in a first frequency band, and a plurality of harps operating in a second frequency band. A second antenna unit 120 having a second size including a slot antenna is included, and the first antenna unit 110 and the second antenna unit 120 are integrated on a plane having a second size.

In the dual band antenna device 100, the second antenna unit 120 is disposed on a square plane having a size of one side having a length of 75 mm (λ / 2), and the first antenna unit 110 is a second antenna unit. 120 is integrated together in a square plane having a size of 5.47 mm (0.47 lambda) in one side disposed in the integrated square plane.

To this end, the second antenna unit 120 is integrated with one first half slot antenna or one fourth half slot antenna in four corner regions of a square plane having a size of λ / 2, and the first antenna unit 110 When compared with the center point of the square plane, the first slot antenna and the second slot antenna are integrated in the center rectangular area where the center point coincides.

2 is a configuration diagram of a first antenna unit 110 having a slot antenna structure included in a dual band antenna device according to an exemplary embodiment of the present invention.

As shown in the drawing, when the first antenna unit 110 sets one orthogonal axis on a square plane having a first size and thereby divides it into the first to fourth quadrants, the first slot antenna 111 in the first quadrant. ) May be integrated and the second slot antenna 113 may be integrated in the third quadrant.

Alternatively, as another embodiment, the first slot antenna 111 may be integrated in the second quadrant and the second slot antenna 113 may be integrated in the fourth quadrant. This will be described again with reference to FIG. 13.

3 is a block diagram illustrating a slot antenna structure of the first antenna unit 110 included in the dual band antenna device according to an exemplary embodiment of the present invention. The first slot antenna 111 and the second slot antenna 113 are Having the same structure, the first slot antenna 111 is representatively shown.

As shown therein, when the first slot antenna 111 sets one horizontal axis (or vertical axis) on any of the first to fourth quadrants, thereby dividing it into the first and second biplanes, The first biplane and the second slot are arranged on the horizontal axis (or vertical axis) so that the straight slots 111a having the boundary conditions at both ends are short, and are symmetrical with respect to the horizontal axis (or the vertical axis) at both ends of the straight slot 111a. The spiral slots 111b are disposed in two bisections, respectively. The first slot antenna 111 may be disposed on a square plane having a side length of 2.72 mm (0.24 λ).

4 is a configuration diagram of a second antenna unit 120 having a half slot antenna structure included in a dual band antenna device according to an embodiment of the present invention, and FIG. 5 is a dual band antenna device according to an embodiment of the present invention. It is a block diagram showing a half-slot antenna structure of the second antenna unit 120 included in 100. The first half slot antenna 121 to the fourth half slot antenna 129 have the same structure, and the first half slot antenna 121 is representatively shown in FIG. 5.

As shown in the drawing, the second antenna unit 120 includes the first half slot antenna 121 to the fourth half slot antenna 129 at four corner regions in a square plane having a length of 75 mm (0.5λ). Are integrated one by one, and each of the first half slot antennas 121 to the fourth half slot antennas 129 sets one horizontal axis (or vertical axis) on one corner region, whereby the first bisector and the second When dividing into two halves, a straight slot 121a is arranged in which the boundary condition of one end 121aa is short on the horizontal axis (or vertical axis) and the boundary condition of the other end 121ab is open. Spiral slots 121b are disposed in the first and second biplanes so as to be symmetrical with respect to the horizontal axis (or vertical axis) at one end 121aa whose boundary condition is a short circuit among both ends of the straight slot 121a. do. Here, in the corner regions where the first half slot antennas 121 to the fourth half slot antennas 129 are formed, the length direction of the straight slot 121a is 22 mm (0.146λ) and the width direction of the straight slot 121a is 24 mm. It has a rectangular planar shape of (0.146λ).

When the antenna multiplexing technique is applied to increase transmission capacity in the dual band antenna structure, the mutual distance between the antennas should be about λ / 2 apart. Suggest. As described above with reference to FIGS. 1 to 4, the dual band antenna device 100 according to an exemplary embodiment of the present invention includes a plurality of slot antennas 111 and 113 on a square plane having a size of one side of λ / 2. ) And the plurality of half slot antennas 121, 123, 125, and 129 are integrated together, so that the half slot antennas 121, 123, 125, and 129 radiate in the 2 Ghz band, and the slot antennas 111 and 113 are in the 26 Ghz band. Emitted in dual band operation.

6 is a characteristic graph of S-parameters of a single slot antenna radiating at 26.6 GHz, and FIG. 7 is a characteristic graph of S-parameters of a single half slot antenna radiating at 1.98 GHz.

According to an embodiment of the present invention, a single slot antenna included in the first antenna unit 110 radiates at 26.6 GHz so that the S1,1 parameter has a characteristic graph as shown in FIG. 6, and the second antenna unit 120 is provided. The single half-slot antenna included in radiates at 1.98 GHz so that the S1,1 parameter has a characteristic graph as shown in FIG.

8 is a characteristic graph of 26 GHz band S-parameters by the dual band antenna device according to an exemplary embodiment of the present invention, and FIG. 9 is a characteristic graph of 26 GHz band interference amount by a dual band antenna apparatus according to an exemplary embodiment of the present invention. 10 is a characteristic graph of a 2 GHz band S-parameter by the dual band antenna device according to an embodiment of the present invention, and FIG. 11 is a diagram of a 2 GHz band interference amount by the dual band antenna device according to an embodiment of the present invention. Characteristic graph.

In the case of integrating a plurality of slot antennas and a plurality of half slot antennas together in a limited space as in the embodiment of the present invention, interference between the antennas may be a problem, according to an embodiment of the present invention, as shown in FIGS. 1 to 5. By arranging the half slot antennas in the four corner regions and the slot antenna in the center region within a 0.5λ space, the interference proportional to the distance between the antennas can be reduced as much as possible.

When arranging the first half slot antenna 121 to the fourth half slot antenna 129 included in the second antenna unit 120 according to an embodiment of the present invention, as shown in FIGS. 1 and 5, a straight slot is shown. By arranging the ends 121ab having open boundary conditions toward different directions among the two ends of 121a, the amount of interference between the antennas can be further reduced, and polarization diversity is achieved because each antenna generates vertical and horizontal polarizations. Can increase the transmission capacity.

The dual-band antenna device 100 according to the embodiment of the present invention can obtain the S1,1 parameter characteristics as shown in FIG. 8 and the interference amount as shown in FIG. 9 in the 26 GHz band. Has bandwidth. In the 2 GHz band, the S1,1 parameter characteristics as shown in FIG. 10 and the interference amount as shown in FIG. 11 can be obtained, and have a bandwidth of 33 MHz (1.6%) at a center frequency of 2.05 GHz.

12 is a configuration diagram of a dual band antenna device according to another embodiment of the present invention. As shown in the drawing, the second antenna unit 120 'included in the dual band antenna device 100' according to another embodiment of the present invention may be partially disposed when arranging the first half slot antenna to the fourth half slot antenna. The half-slot antenna may be arranged such that the ends of the straight slots having the boundary condition open toward the same direction.

13 is a configuration diagram of a dual band antenna device according to another embodiment of the present invention. As shown in the drawing, the first antenna unit 110 ′ included in the dual band antenna device 100 ″ according to another embodiment of the present invention sets one orthogonal axis on a square plane having a first size and thereby When divided into the first to fourth quadrants, slot antennas may be integrated in the second and fourth quadrants, respectively. In addition, referring to FIG. 3, the straight slot 111a may be disposed on the horizontal axis, but may also be disposed on the vertical axis.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: dual band antenna device 110: first antenna unit
111: first slot antenna 113: second slot antenna
120: second antenna portion 121: first half slot antenna
123: second half slot antenna 125: third half slot antenna
129: fourth half-slot antenna

Claims (6)

  1. delete
  2. A first antenna unit having a first size including a plurality of slot antennas operating in a first frequency band;
    A second antenna part of a second size including a plurality of half slot antennas operating in a second frequency band,
    The first antenna unit and the second antenna unit are integrated on a plane having the second size,
    The second antenna unit, the first half-slot antenna and the fourth half-slot antenna is integrated in each of the four corner regions of the square plane having a size of λ / 2,
    The first antenna unit may include a first slot antenna and a second slot antenna integrated in a central rectangular area where the center point coincides with the center point of the square plane.
    Dual band antenna device.
  3. 3. The method of claim 2,
    The first antenna unit,
    When setting one orthogonal axis on the square plane having the first size and thereby dividing into first to fourth quadrants, the first slot antenna is integrated in the first quadrant and the second slot antenna in the third quadrant. Or the first slot antenna is integrated in a second quadrant and the second slot antenna is integrated in a fourth quadrant.
    Dual band antenna device.
  4. The method of claim 3, wherein
    The first slot antenna and the second slot antenna,
    When setting one horizontal axis (or vertical axis) on any of the first to fourth quadrants and thereby dividing it into the first and second biplanes, a boundary condition of both ends is formed on the horizontal axis (or vertical axis). Short straight slots are disposed, and spiral slots are disposed at both first and second biplanes so as to be symmetrical with respect to the horizontal axis (or vertical axis) at both ends of the straight slots.
    Dual band antenna device.
  5. 3. The method of claim 2,
    The first half slot antenna to the fourth half slot antenna,
    When setting one horizontal axis (or vertical axis) on the corner region and thereby dividing it into the first and second biplanes, the boundary condition of one end on the horizontal axis (or vertical axis) is short and the other The boundary condition at one end is arranged with an open straight slot, and the first half face and the first biplane are arranged so as to be symmetrical with respect to the horizontal axis (or vertical axis) at one end of each of the ends of the straight slot where the boundary condition is a short circuit. 2 spiral slots each
    Dual band antenna device.
  6. The method of claim 5, wherein
    The first half slot antenna to the fourth half slot antenna,
    Of the ends of the straight slot is arranged so that the end of the boundary condition is open in a different direction
    Dual band antenna device.
KR1020120071805A 2012-07-02 2012-07-02 Dual band antenna device KR101356429B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120071805A KR101356429B1 (en) 2012-07-02 2012-07-02 Dual band antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120071805A KR101356429B1 (en) 2012-07-02 2012-07-02 Dual band antenna device

Publications (2)

Publication Number Publication Date
KR20140004363A KR20140004363A (en) 2014-01-13
KR101356429B1 true KR101356429B1 (en) 2014-02-03

Family

ID=50140363

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120071805A KR101356429B1 (en) 2012-07-02 2012-07-02 Dual band antenna device

Country Status (1)

Country Link
KR (1) KR101356429B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060045003A (en) * 2004-08-21 2006-05-16 삼성전자주식회사 The small planar antenna with enhanced bandwidth and the small rectenna for rfid and wireless sensor transponders
KR20090103683A (en) * 2008-03-28 2009-10-01 삼성탈레스 주식회사 Multi resonant broadband compact antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060045003A (en) * 2004-08-21 2006-05-16 삼성전자주식회사 The small planar antenna with enhanced bandwidth and the small rectenna for rfid and wireless sensor transponders
KR20090103683A (en) * 2008-03-28 2009-10-01 삼성탈레스 주식회사 Multi resonant broadband compact antenna

Also Published As

Publication number Publication date
KR20140004363A (en) 2014-01-13

Similar Documents

Publication Publication Date Title
JP2010068085A (en) Antenna device
US9190733B2 (en) Antenna with multiple coupled regions
CN105493348A (en) Multiband common-caliber antenna
US8659482B2 (en) MIMO antenna having plurality of isolation adjustment portions
TWI548145B (en) Omnidirectional antenna
US20130050027A1 (en) Mimo/diversity antenna with high isolation
KR101711150B1 (en) Dual-polarized antenna for mobile communication base station and multi-band antenna system
CN102386482B (en) Multi-loop antenna system and electronic device with same
TWI599105B (en) Mobile communication device
US7573433B2 (en) Dual-band antenna and mimo antenna using the same
Li et al. Frequency-and pattern-reconfigurable antenna for multistandard wireless applications
US8610633B2 (en) Dual polarized waveguide slot array and antenna
TW201431176A (en) Electronic device and antenna unit thereof
TWI569505B (en) Ground radiation antenna
KR20060009822A (en) Reflector, in particular for a mobile radio antenna
US8094076B2 (en) Multiband antenna
CN103311651B (en) A kind of ultra wideband multi-band dual polarized antenna
EP2733785A1 (en) Antenna isolation for a communication device
CN103579745B (en) There is the inside antenna of broadband character
US20130169494A1 (en) Circular polarization antenna
US9099766B2 (en) Wideband antenna structure
JP4623105B2 (en) Broadcast receiving antenna device
JP2014150526A (en) Antenna assembly and communication device comprising the same
US8884824B2 (en) Planar inverted-F antenna
US9246236B2 (en) Dual-polarization radiating element of a multiband antenna

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20161227

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20180102

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee