KR101308917B1 - Circuit board with excellent easiness for antenna tunning process - Google Patents

Circuit board with excellent easiness for antenna tunning process Download PDF

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Publication number
KR101308917B1
KR101308917B1 KR1020130052383A KR20130052383A KR101308917B1 KR 101308917 B1 KR101308917 B1 KR 101308917B1 KR 1020130052383 A KR1020130052383 A KR 1020130052383A KR 20130052383 A KR20130052383 A KR 20130052383A KR 101308917 B1 KR101308917 B1 KR 101308917B1
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KR
South Korea
Prior art keywords
antenna
substrate body
antenna tuning
dummy pattern
surface
Prior art date
Application number
KR1020130052383A
Other languages
Korean (ko)
Inventor
이진성
정우람
김영호
정호철
Original Assignee
(주)드림텍
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Filing date
Publication date
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Priority to KR1020130052383A priority Critical patent/KR101308917B1/en
Application granted granted Critical
Publication of KR101308917B1 publication Critical patent/KR101308917B1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/16Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Abstract

Simplify the cost and procedure of antenna tuning by designing antenna tuning dummy patterns, which are pre-separated in matrix form, but electrically interconnected with each other, and performing antenna tuning by selectively removing parts not related to antenna performance. Disclosed is a circuit board which can be easily tuned to an antenna.
In accordance with another aspect of the present invention, a circuit board for easily tuning an antenna may include: a substrate body having a first surface and a second surface opposite to the first surface, the substrate body including an active region and an inactive region; A circuit pattern formed in an active region of the substrate body; And a first partial incision line formed in the inactive region of the first surface of the substrate body, the plurality of which are partially cut into a strip shape in a first direction, and the plurality of strips in a second shape crossing the first direction. And an antenna tuning dummy pattern having a cut second partial cut line.

Description

CIRCUIT BOARD WITH EXCELLENT EASINESS FOR ANTENNA TUNNING PROCESS}

The present invention relates to a circuit board that is easy to tune the antenna, more specifically, a plurality of preliminary separation in a matrix form, the antenna tuning dummy pattern is designed to be electrically connected to each other, and selectively to the part irrelevant to the antenna performance The present invention relates to a circuit board for easy antenna tuning, which can simplify the cost and procedure of antenna tuning by performing antenna tuning.

Recently, portable electronic products such as mobile phones, PDAs, and PMPs are widely used. However, small-sized mobile devices such as mobile phones suffer from difficulties in installing various functions because of their functions as well as their ease of portability.

Recently, antennas used in portable terminals are mainly built-in antennas, a monopole antenna having a length of λ / 4 of an operating frequency, and an antenna of PIFA (planner invertied F antenna) having an electrically corresponding length. Or a loop type antenna having a length of? / 2.

As such, in recent years, research into miniaturization of antennas and a method of mounting antennas have been actively conducted for researches on built-in antennas in which an antenna can be mounted inside a portable terminal by removing an existing external type.

In line with this, recently, the technology of directly printing antenna patterns on a main printed circuit board or a sub printed circuit board of a mobile terminal has been actively researched and developed. If necessary, plastic injection molding products are used as in the conventional internal antenna. By using metal plate, plating, etc. in addition to the built-in antenna formed on the printed circuit board to improve the performance as a lacking antenna.

However, in order to find the shape of the antenna pattern suitable for each model of the mobile terminal, a number of precise antenna pattern modifications are required. That is, after forming the antenna pattern on the printed circuit board according to the type of each mobile terminal, check the operating frequency, total radiated power (TRP), total isotropic sensitivity (TIS), etc. necessary for the normal operation of the antenna The shape of the optimized antenna pattern is realized. In particular, in the conventional antenna tuning operation, the design of the main or sub printed circuit board is changed, so that one printed circuit board is required to find the shape of one antenna pattern, which requires a lot of tuning time and cost. The tuning task was complicated.

Related prior art documents include Korean Patent Publication No. 10-2008-0063431 (published Jul. 4, 2008), which discloses a stacked antenna and an electronic device having the same.

It is an object of the present invention to design a plurality of antenna tuning dummy patterns which are preliminarily separated in a matrix form, and are electrically connected to each other, so that it is possible to perform various types of antenna tuning operations on one base substrate. To provide a circuit board that is easy to tune the antenna to simplify the cost and procedure of the system.

According to an embodiment of the present invention, a circuit board for easily tuning an antenna may include a substrate body having a first surface and a second surface opposite to the first surface, and including an active region and an inactive region; A circuit pattern formed in an active region of the substrate body; And a first partial incision line formed in the inactive region of the first surface of the substrate body, the plurality of which are partially cut into a strip shape in a first direction, and the plurality of strips in a second shape crossing the first direction. And an antenna tuning dummy pattern having a cut second partial cut line.

The circuit board for easy antenna tuning according to the present invention is divided into a plurality of antenna tuning dummy patterns in a cell type of a matrix, but includes an antenna tuning dummy pattern having an electrically connected structure, thereby performing one tuning operation. Each time, it is possible to tune various types of antenna patterns at a time for various purposes without having to separately form an antenna pattern in accordance with the form, so that the cost and time required for performing antenna tuning In addition to the reduction, the antenna tuning task can be simplified.

1 and 2 are a cross-sectional view and a plan view schematically showing a circuit board for easy antenna tuning operation according to an embodiment of the present invention.
3 is an enlarged plan view illustrating the antenna tuning dummy pattern of FIG. 2.
4 is an enlarged plan view illustrating a portion A of FIG. 3.
5 is an enlarged plan view illustrating another example of the antenna tuning dummy pattern of FIG. 3.
FIG. 6 is a plan view schematically illustrating a circuit board in which antenna tuning is easy according to another embodiment of the present invention.
FIG. 7 is a cross-sectional view taken along the line VII-VII 'of FIG. 6.
8 and 9 are diagrams for explaining an antenna tuning method using a circuit board for easy antenna tuning according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may 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 scope 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. Like reference numerals refer to like elements throughout the specification.

Hereinafter, a circuit board for easily tuning an antenna according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a cross-sectional view and a plan view schematically showing a circuit board for easy antenna tuning operation according to an embodiment of the present invention.

1 and 2, the circuit board 100 for easy antenna tuning operation according to an embodiment of the present invention shown in FIG. 1 includes a substrate body 110, a circuit pattern 120, and an antenna tuning dummy pattern 130. It includes.

The substrate body 110 has a first surface 110a and a second surface 110b opposite to the first surface 110a and includes an active area AA and an inactive area NAA. In this case, the active area AA corresponds to an area where the circuit pattern 120 is formed, and the inactive area NAA corresponds to an area where the circuit pattern 120 is not formed. For example, the substrate body 110 may be selected from epoxy resins such as prepreg (PPG), FR-4, FR-5, bismaleimide triazine (BT), and Ajinomoto Build up Film (ABF). have.

The circuit pattern 120 is formed in the active region AA of the substrate body 110. The circuit pattern 120 may be formed on one surface 110a and the other surface 110b opposite to the surface 110a of the substrate body 110. In this case, the circuit patterns 120 may be electrically connected to each other by through vias (not shown) passing through the inside of the substrate body 110.

The antenna tuning dummy pattern 130 is formed in the inactive area NAA of the first surface 110a of the substrate body 110.

3 is an enlarged plan view of the antenna tuning dummy pattern of FIG. 2, and FIG. 4 is an enlarged plan view of portion A of FIG. 3.

As shown in FIGS. 3 and 4, the antenna tuning dummy pattern 130 is formed in an inactive region of the first surface of the substrate body, and the first partial incision line SL1 is partially cut in a band shape in the first direction. ) And a second partial cut line SL2 partially cut in a band shape in a second direction crossing the first direction. Each of the first and second partial cutting lines SL1 and SL2 has a structure in which a plurality of through holes TH penetrating the first and second surfaces of the substrate body are arranged in a band shape.

In this case, the first partial cut line SL1 and the second partial cut line SL2 may be designed to vertically cross each other. In particular, the first and second partial cut lines SL1 and SL2 cross each other perpendicularly to each other, and preliminarily separate a plurality of antenna tuning dummy patterns 130 in a matrix cell type, but have a structure in which they are electrically interconnected. desirable.

That is, the antenna tuning dummy pattern 130 is preliminarily separated in a matrix form by the first partial cut line SL1 and the second partial cut line SL2, but is electrically connected to each other. Accordingly, the plurality of antenna tuning dummy patterns 130 may be preliminarily separated in a matrix form by the first and second partial cut lines SL1 and SL2 while being electrically connected to each other.

At this time, pre-separation of the antenna tuning dummy pattern 130 into a plurality of matrix forms selectively removes only a portion excluding the antenna pattern forming region during the antenna tuning operation for selectively searching the shape of the antenna pattern suitable for the type of the mobile terminal. This is to facilitate the operation. Accordingly, the antenna tuning operation may be performed by using the first and second partial cut lines SL1 and SL2 of the antenna tuning dummy pattern 130 to be removed by selectively removing unnecessary portions according to the shape of the antenna pattern. This can be facilitated.

Accordingly, in the present invention, the antenna tuning dummy pattern 130 is separated into a plurality of matrix cell types, and the antenna tuning dummy pattern 130 is designed to have an electrically interconnected structure. It is possible to tune various types of antenna patterns at a time for various purposes without having to form a separate circuit, thereby reducing the cost and time required for performing antenna tuning, Can be simplified.

5 is an enlarged plan view illustrating another example of the antenna tuning dummy pattern of FIG. 3.

As shown in FIG. 5, the antenna tuning dummy pattern 130 may be designed in the form of a triangular mesh that is preliminarily separated from each other and electrically connected to each other.

In this case, the antenna tuning dummy pattern 130 may include a plurality of first partial incision lines SL1 partially cut in a band shape in a first direction and a plurality of partial cuts in a band shape in a second direction crossing the first direction. The second partial cut line SL2 and the third partial cut line SL3 partially cut in a band shape in a third direction different from the first and second directions have a triangular mesh structure.

Although not illustrated in the drawings, the plurality of preliminary-separated antenna tuning dummy patterns 130 may not only be limited to the shapes of triangles and quadrangles, but may have any one of a polygon, a circle, and an oval including a pentagon.

FIG. 6 is a plan view schematically illustrating a circuit board with which antenna tuning is easy according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 6.

6 and 7, the circuit board 100 for easy antenna tuning according to another embodiment of the present invention is a substrate body 110, a circuit pattern (not shown), and an antenna tuning dummy pattern 130. In addition, the antenna may further include an additional antenna tuning dummy pattern 132.

The antenna tuning dummy pattern 130 is formed in the inactive region of the first surface 110a of the substrate body 110, and the additional antenna tuning dummy pattern 132 is formed in the inactive region of the second surface 110b of the substrate body 110. Is formed. That is, the circuit board 100 which is easy to tune the antenna according to another embodiment of the present invention is the antenna tuning dummy pattern 130 and the first surface (110a) and the second surface (110b) of the substrate body (110) Each of the additional antenna tuning dummy patterns 132 may enable a tuning operation to find more various types of antenna patterns.

Each of the antenna tuning dummy pattern 130 and the additional antenna tuning dummy pattern 132 may be separated into a plurality of matrix cell types, and electrically connected to each other. That is, each of the antenna tuning dummy pattern 130 and the additional antenna tuning dummy pattern 132 is formed in the inactive regions of the first surface 110a and the second surface 110b of the substrate body 110, respectively, in the first direction. A plurality of first partial cut lines SL1 partially cut into a strip shape and a second partial cut line SL2 partially cut into a strip shape in a second direction crossing the first direction are provided. In this case, the antenna tuning dummy pattern 130 and the additional antenna tuning dummy pattern 130 may be disposed on the first surface 110a and the second surface 110b of the substrate body 110, respectively, to form mutually symmetrical structures. Can be.

In particular, each of the first and second partial cut lines SL1 and SL2 includes a plurality of through vias TS penetrating through the first surface 110a and the second surface 110b of the substrate body 110. It has a structure that is arranged as. That is, the through via TS is formed on the inner wall of the substrate body 110 to electrically connect the antenna tuning dummy pattern 130 and the additional antenna dummy pattern 132.

The circuit board for easy antenna tuning according to the above-described embodiments of the present invention is designed to have a structure in which an antenna tuning dummy pattern is separated into a plurality of matrix cell types and electrically connected to each other, thereby performing one tuning operation. Each time, it is possible to tune the antenna patterns of various types at a time for various purposes without having to separately form the antenna pattern in accordance with the form, so the cost and time required to perform the antenna tuning In addition, the antenna tuning operation can be simplified.

Meanwhile, FIGS. 8 and 9 are diagrams for explaining an antenna tuning method using a circuit board for easy antenna tuning according to an embodiment of the present invention.

First, as shown in FIG. 8, a circuit board (100 of FIG. 1) having an antenna tuning dummy pattern 130 that is preliminarily separated into a plurality of matrix cell types is prepared. In this case, the circuit board may include an antenna pattern formation area PA. For example, as illustrated in FIG. 8, the antenna pattern formation area PA may have a shape such as an area shaded with diagonal lines. The antenna pattern formation area PA may have various shapes according to each model of the mobile terminal.

Next, as shown in FIG. 9, antennas are formed along the first and second partial cut lines (SL1 and SL2 of FIG. 8) to perform a tuning operation using the antenna tuning dummy pattern (130 of FIG. 8). When the antenna tuning dummy pattern corresponding to the portion except for the region (PA of FIG. 8) is removed and removed, the antenna pattern 135 having the same shape as the antenna formation region can be formed.

Next, the operating frequency, the total radiated power (TRP), the total isotropic sensitivity (TIS), etc. necessary for the normal operation of the antenna pattern 135 are checked and their suitability is determined. By repeatedly performing such a series of operations, the antenna tuning operation can be performed by finding an optimal shape of the antenna pattern 135.

As described above, the present invention does not use one circuit board per antenna pattern to find the shape of the antenna pattern corresponding to the model of each mobile terminal, but selectively connects antenna tuning dummy patterns on one circuit board and antennas. It is possible to perform various types of antenna tuning work by removing and removing the parts that affect the noise.

Therefore, the tuning operation can be simplified because the shape of the antenna pattern corresponding to each model can be found by selectively and repeatedly performing a tuning operation according to the required shape using the antenna tuning dummy patterns on the circuit board corresponding to the base board. In addition, the cost and time required to perform tuning operations can be significantly reduced.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. These changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.

100: circuit board 110: substrate body
110a: substrate body first surface 110b: substrate body second surface
120: circuit pattern 130: antenna tuning dummy pattern
132: additional antenna tuning dummy pattern TS: through hole
TV: Through Via PA: Antenna Pattern Formation Area
AA: active region NAA: inactive region
SL1, SL2: first and second partial incision lines

Claims (8)

  1. A substrate body having a first surface and a second surface opposite the first surface, the substrate body having an active region and an inactive region;
    A circuit pattern formed in an active region of the substrate body; And
    A first partial incision line formed in the inactive region of the first surface of the substrate body and partially cut in a band shape in a first direction, and a plurality of partial cuts in a band shape in a second direction crossing the first direction And an antenna tuning dummy pattern having a second partial incision line.
  2. The method of claim 1,
    The antenna tuning dummy pattern
    By the first partial incision line and the second partial incision line, a plurality of preliminary separation in the form of a matrix, the circuit board easy antenna tuning, characterized in that electrically connected to each other.
  3. The method of claim 2,
    The plurality of pre-separated antenna tuning dummy patterns
    A circuit board for easy antenna tuning, characterized in that it has a shape of any one selected from polygons, triangles, pentagons, including a triangle, a square, a pentagon.
  4. The method of claim 1,
    Each of the first and second partial incision lines
    And a plurality of through holes penetrating the first and second surfaces of the substrate body in a band form.
  5. A substrate body having a first surface and a second surface opposite the first surface, the substrate body having an active region and an inactive region;
    A circuit pattern formed in an active region of the substrate body;
    A first partial incision line formed in the inactive region of the first surface of the substrate body and partially cut in a band shape in a first direction, and a plurality of partial cuts in a band shape in a second direction crossing the first direction An antenna tuning dummy pattern having a second partial incision line; And
    And an additional antenna tuning dummy pattern formed in an inactive region of the second surface of the substrate body.
    Each of the first and second partial cut lines may include a plurality of through vias penetrating through the first and second surfaces of the substrate body in a band form.
  6. The method of claim 5,
    The through via is
    And a circuit board formed on an inner wall of the substrate body to electrically connect the antenna tuning dummy pattern and the additional antenna dummy pattern.
  7. The method of claim 5,
    The antenna tuning dummy pattern and the additional antenna tuning dummy pattern
    An easy circuit tuning antenna, characterized in that having a mutually symmetrical structure.
  8. The method according to claim 1 or 2,
    In the tuning operation using the antenna tuning dummy pattern,
    An antenna pattern is easily formed according to the first and second partial incision lines to form an antenna pattern in a manner of removing and removing the antenna tuning dummy pattern which is preliminarily separated corresponding to the portion except for the antenna formation region. Board.
KR1020130052383A 2013-05-09 2013-05-09 Circuit board with excellent easiness for antenna tunning process KR101308917B1 (en)

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KR1020130052383A KR101308917B1 (en) 2013-05-09 2013-05-09 Circuit board with excellent easiness for antenna tunning process

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KR1020130052383A KR101308917B1 (en) 2013-05-09 2013-05-09 Circuit board with excellent easiness for antenna tunning process

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08340211A (en) * 1995-06-12 1996-12-24 Sumitomo Electric Ind Ltd Array antenna
JP2002314324A (en) 2001-04-13 2002-10-25 Furukawa Electric Co Ltd:The Small antenna and its manufacturing method
KR100810383B1 (en) 2006-12-01 2008-03-04 삼성전자주식회사 Built-in type antenna apparatus
KR100921494B1 (en) 2008-03-28 2009-10-13 삼성탈레스 주식회사 Multi resonant broadband compact antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08340211A (en) * 1995-06-12 1996-12-24 Sumitomo Electric Ind Ltd Array antenna
JP2002314324A (en) 2001-04-13 2002-10-25 Furukawa Electric Co Ltd:The Small antenna and its manufacturing method
KR100810383B1 (en) 2006-12-01 2008-03-04 삼성전자주식회사 Built-in type antenna apparatus
KR100921494B1 (en) 2008-03-28 2009-10-13 삼성탈레스 주식회사 Multi resonant broadband compact antenna

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