JP4124803B1 - Portable radio - Google Patents

Abstract

To provide a portable wireless device capable of improving antenna performance even when a circuit board has a notch.
A portable wireless device includes a lower substrate having a cutout portion, a ground pattern formed on the lower substrate, and a lower substrate provided around the cutout portion. An antenna power supply unit 222 that supplies power and a conductive member 225 that is provided across the notch 211 and electrically connects the ground pattern.
[Selection] Figure 1

Description

The present invention relates to a portable wireless device such as a cellular phone, and more particularly to a portable wireless device in which a large electronic component such as a camera module is mounted around a hinge portion.

  In a portable wireless device such as a cellular phone, it is conventionally performed to operate not only an antenna element but also a ground pattern provided on a circuit board as a radiator (see, for example, Patent Document 1).

  FIG. 16 is a schematic configuration diagram of a conventional portable wireless device, in which FIG. 16A is a front view and FIG. 16B is a side view. As shown in FIG. 16, the conventional portable wireless device 10 has a lower housing 20 and an upper housing 30. The upper housing 30 and the lower housing 20 each have a rectangular upper substrate 31 and lower substrate 21 in which a ground pattern (not shown) is formed. On the lower substrate 21, circuit components such as an antenna power supply unit 23 that supplies power to the antenna element 22 and electronic components 24 such as a camera module are mounted.

  A ground pattern made of a planar conductive material is generally provided in a planar shape substantially matching the respective shapes on the entire surface of the upper substrate 31 and the lower substrate 21 from the viewpoints of ground reinforcement and improvement of antenna characteristics. A ground current having a phase opposite to that of the antenna element 22 flows through the ground pattern. At this time, it is known that if the ground pattern has a length component of λ / 4 or more with respect to the wavelength λ of the desired frequency, the radiation efficiency of the antenna is lowered. For example, in the case of 2 GHz (gigahertz) which is a frequency band used in a mobile phone, the length corresponding to the above λ / 4 is about 4 cm (centimeter).

  FIG. 17 is a diagram illustrating a simulation result of the current distribution of the portable wireless device 10 when the antenna feeding unit 23 outputs a current of 1940 MHz (megahertz) in the conventional portable wireless device 10 illustrated in FIG. 16. The horizontal axis indicates the vertical position of the portable wireless device 10 with the upper housing 30 opened, and the vertical axis indicates the horizontal position of the portable wireless device 10. A darker area indicates a higher ground current.

  As shown in FIG. 17, in the conventional portable radio device 10, the current distribution of the lower substrate 21 is strong and the distribution spreads over the entire lower substrate 21. Thus, in the conventional portable wireless device 10, the antenna characteristic with high radiation efficiency is ensured by flowing the ground current over the entire surface of the casing.

By the way, in recent years, in a portable wireless device, a circuit board in which a notch such as a U-shape is formed is used. By using such a circuit board, for example, it is possible to arrange electronic components that have been placed on the circuit board in the form of being embedded in the circuit board, making the portable wireless device thinner, smaller, and lighter. And multi-function can be achieved.
Japanese Patent No. 3613526

  However, when the notch is provided on the circuit board, the antenna performance of the portable wireless device may be deteriorated. This is because a notch having the same shape is also formed in the ground pattern, and the above-described length component of λ / 4 or more can be generated as the peripheral length of the notch.

  FIG. 18 shows a simulation result of current distribution when a length component of λ / 4 or more occurs in the conventional portable radio device 10 shown in FIG. 16 because the electronic component 24 portion of the lower substrate 21 is notched. It is a figure shown and corresponds to FIG.

  Comparing FIG. 18 with FIG. 17, it can be seen that in the lower substrate 20 having the notch, the current distribution is weak and the distribution is concentrated around the electronic component 24 (around the notch). In such a state, radiation efficiency is deteriorated and antenna characteristics are also lowered. Therefore, when the cutout portion is provided, it is desirable to suppress the peripheral length to less than λ / 4.

  However, in view of the increase in the volume of components accompanying the high performance of the electronic components and the tendency to expand to the high frequency band of wireless communication, it is difficult to design the peripheral length of the notch to be less than λ / 4. It is becoming.

  In particular, when an antenna feeding unit is provided around the notch, the ground current tends to concentrate on the area around the notch because the antenna is close to the feeding point, and the deterioration of the antenna performance is further serious. Is likely.

  The present invention has been made in view of this point, and an object of the present invention is to provide a portable wireless device that can improve antenna performance even when a circuit board has a notch.

A portable wireless device according to the present invention includes a circuit board, a cutout part in which one side of the circuit board is cut out, a camera unit disposed in the cutout part, and one side provided with the cutout part of the circuit board. an antenna element disposed on the side of a ground pattern formed on the circuit board, the circuit board is provided around the notch, and a feeding unit for supplying high frequency power to the antenna element, wherein A structure is provided that includes a conductive member provided across the notch, electrically connecting the ground pattern, and having a plane perpendicular to the circuit board .
Alternatively, the portable wireless device of the present invention is provided with a circuit board, a cutout part in which one side of the circuit board is cut out, a camera part disposed in the cutout part, and the cutout part of the circuit board. An antenna element disposed on one side, a ground pattern formed on the circuit board, and a power feeding unit that is provided around the notch of the circuit board and supplies high-frequency power to the antenna element. And a conductive member that is provided across the notch, electrically connects the ground pattern, and is disposed between the antenna element and the circuit board in the thickness direction of the circuit board. Take.
Alternatively, the portable wireless device according to the present invention includes a first protrusion, a second protrusion, and a notch positioned between the first protrusion and the second protrusion. A circuit board, a camera part disposed in the notch part, an antenna element disposed on one side of the circuit board provided with the notch part, a ground pattern formed on the circuit board, A power supply unit that is provided on the first projection or the second projection and supplies high-frequency power to the antenna element, a conductive member that electrically connects the ground pattern, the ground pattern, and the conductivity An electrical contact that electrically connects the member, the conductive member is provided across the notch, and the first protrusion and the second protrusion are the conductive member. By the route different from the ground pattern A configuration that is electrically connected.

  According to the present invention, since the ground current can be guided to a path different from the ground pattern around the notch portion, even when the circuit board has the notch portion, the ground current to the notch portion surrounding portion is obtained. The antenna performance can be improved by broadening the distribution of the antenna current on the circuit board.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  1A and 1B are schematic configuration diagrams illustrating a configuration of a portable wireless device according to an embodiment of the present invention, in which FIG. 1A is a front view and FIG. 1B is a side view. FIG. 2 is a schematic perspective view of the lower substrate 210. This embodiment is an example in which the present invention is applied to a foldable mobile phone with a camera.

  In FIG. 1, the portable wireless device 100 has a lower housing 200 and an upper housing 300. The upper housing 300 is connected to the lower housing 200 via a hinge portion (not shown), and can be opened and closed with the hinge portion as a center. Although not shown, the lower housing 200 is provided with an operation unit composed of a plurality of key switches for performing various operations and a microphone for inputting voice calls, and the upper housing 300 is provided for image display. Liquid crystal display and a speaker for outputting a call voice.

  The upper housing 300 is provided with an upper substrate 310 that is a circuit board on which various circuit components are mounted and in which a ground pattern (not shown) is formed on substantially the entire surface.

  Cable terminals 311 are mounted on the upper substrate 310. A substrate connection cable 312 which is a coaxial cable passing through the hinge portion is connected to the cable terminal 311.

  The lower housing 200 is a circuit board on which various circuit components are mounted, a lower board 210 having a ground pattern (not shown) formed on substantially the entire surface, an antenna element 230, and a complementary metal oxide (CMOS). And a camera module 240 having an image sensor such as a sensor.

  At the edge of the lower substrate 210 on the hinge portion side, a cutout portion 211 for arranging the camera module 240 in an embedded form is provided in order to reduce the thickness of the portable wireless device 100. The notch 211 has a shape in which one side of the lower substrate 210 is notched into a U-shape. Two protrusions 212 and 213 are formed on both sides of the notch 211 as a result of the notch 211 being formed on the edge of the lower substrate 210 on the hinge part side. Hereinafter, the right protrusion 212 in FIG. 1A is referred to as a first protrusion 212, and the other protrusion 213 is referred to as a second protrusion 213.

  In addition, the planar shape of the ground pattern substantially matches the planar shape of the lower substrate 210. Therefore, the ground pattern has a notch portion and two protruding portion shape portions corresponding to the notch portion 211 and the two protrusion portions 212 and 213. Hereinafter, the notch portion and the two protrusion portions of the ground pattern are referred to as the notch portion 211 and the two protrusion portions 212 and 213 as appropriate.

  As shown in FIG. 1 and FIG. 2, a cable terminal 221, an antenna feeding unit 222, a matching circuit 223, and a wireless circuit 224 are mounted on the lower substrate 210.

  The cable terminal 221 is provided on the second protrusion 213 and electrically connects the ground pattern of the lower substrate 210 and the ground pattern of the upper substrate 310 via the substrate connection cable 312. Hereinafter, the ground pattern of the lower substrate 210 and the ground pattern of the upper substrate 310 are appropriately handled as one ground pattern. The ground pattern is a metal that becomes a ground potential.

  The antenna feeding unit 222 has a feeding point on the first protrusion 212, supplies a high-frequency current to the antenna element 230, uses the ground pattern as a ground, and causes the antenna element 230 and the ground pattern to function as an antenna. The matching circuit 223 matches the impedance of the antenna element 230 to, for example, 50Ω (ohms). The wireless circuit 224 performs signal processing on a transmission signal and a reception signal by wireless communication.

  As a feature of the present invention, the lower substrate 210 is provided with a conductive member 225.

  The conductive member 225 is made of a conductive material, and is connected to the first protrusion 212 and the second protrusion 213 of the ground pattern by electrical contacts 226 and 227 such as spring contacts, respectively. That is, the conductive member 225 electrically connects the first protrusion 212 and the second protrusion 213 of the ground pattern through a path different from the ground pattern.

  FIG. 3 is a schematic configuration diagram showing the configuration of another example of the portable wireless device, and corresponds to FIG. Parts that are the same as or correspond to those in FIG. 1A are given the same reference numerals, and descriptions thereof are omitted.

  As shown in FIG. 3, the camera module 240 can be attached to the lower substrate 210 via a flexible substrate 241.

  FIG. 4 is a partial cross-sectional view showing an example of the shape of the conductive member 225, and shows a state when the cross section taken along the broken line Y in FIG. 3 is viewed from the upper side in FIG. In addition, in order to show that the antenna element 230 and the conductive member 225 are parallel, the entire antenna element 230 is also illustrated.

  As shown in FIG. 4, the camera module 240 is attached to the lower substrate 210 via a flexible substrate 241 and a camera connector 242.

  In the portable wireless device 100, as described above, the feeding point of the antenna feeding unit 222 is arranged on the first protrusion 212. Here, as an example, it is assumed that the peripheral length of the notch 211 is about 7.5 cm and the radio frequency is 2 GHz. In this case, since the peripheral length of the notch 211 substantially coincides with λ / 2, the ground current concentrates around the notch 211 when no measures are taken.

  Therefore, in this embodiment, a conductive member 225 is provided to straddle the first protrusion 212 and the second protrusion 213 and to electrically connect them through a path different from the ground pattern. As a result, the ground current flowing to the second protrusion 213 can be dispersed to the conductive member 225 side, and the current distribution of the ground pattern can be improved and the radiation efficiency can be improved. In addition, since the board connection cable 312 is connected to the second protrusion 213, when no action is taken, the ground pattern in the longitudinal direction of the ground pattern (in FIG. 1A or FIG. 3) is taken. Where the component in the vertical direction is dominant, the component in the short direction of the ground pattern (the horizontal direction in FIG. 1A or FIG. 3) can be relatively increased. As a result, the ground current can be distributed in a balanced manner with respect to the feeding point.

  The conductive member 225 can take various shapes.

  FIG. 5 is a partial cross-sectional view showing an example of the shape of the conductive member 225, and shows a state when a cross section taken along the broken line X in FIG. 1B is viewed from the upper side of the drawing in FIG. However, illustration of the camera module 240, the cable terminal 221, and the circuit components on the conductive member 225 side is omitted. Further, as in FIG. 4, the entire antenna element 230 is also illustrated.

  FIG. 5A shows an example in which a planar sheet metal parallel to the lower substrate 210 is adopted as the conductive member 225. FIG. 5B shows an example in which a sheet metal having a plane perpendicular to the lower substrate 210 is adopted as the conductive member 225. Here, any conductive member 225 is disposed between the antenna element 230 and the lower substrate 210 in the thickness direction of the lower substrate 210.

  The conductive member 225 only needs to be provided across the notch 211 and electrically connect the ground pattern. According to the design specifications of the portable wireless device 100, various shapes, connection forms, and materials can be used. What is necessary is just to select and employ | adopt an appropriate thing from each. In addition, a component arranged in the notch 211 for the purpose other than improving the current distribution is used as the conductive member 225, or such a component and a newly provided component are used as the conductive member 225. May be.

  Hereinafter, other examples of the shape and connection form of the conductive member 225 will be described as modifications of the portable wireless device 100.

(Modification 1)
FIG. 6 is a schematic configuration diagram showing the configuration of the portable wireless device according to the first modification of the present embodiment, and corresponds to FIG. The same parts as those in FIG. 1A are denoted by the same reference numerals, and description thereof will be omitted.

  As illustrated in FIG. 6, the conductive member 225 a of the portable wireless device 100 a according to the first modification is connected to the tips of the first protrusion 212 and the second protrusion 213. As a result, the influence of reflection at the tip portion of the first projection 212 and the tip of the second projection 213 can be minimized, and the ground pattern (GND) in the vicinity of the antenna feeding portion 222 having the strongest current distribution can be obtained. ) Can be connected to the conductive member 225a, and the current distribution can be further improved compared to the case where the conductive member 225 is connected to a portion other than the tip.

(Modification 2)
FIG. 7 is a schematic partial configuration diagram showing a partial configuration of a portable wireless device according to the second modification of the present embodiment, and corresponds to FIG. The same parts as those in FIG. 1A are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in FIG. 7, in the portable wireless device according to the second modification, the conductive member 225 is connected to the lower substrate 210 via electrical contacts 226b and 227b into which reactance elements are inserted. FIG. 7A shows an example in which reactance elements are inserted into both the electrical contacts 226 and 227 shown in FIG. FIG. 7B shows an example in which a reactance element is inserted only into the electrical contact 227 shown in FIG. FIG. 7C shows an example in which a reactance element is inserted only into the electrical contact 226 shown in FIG.

  Thus, by connecting the conductive member 225 to the lower substrate 210 via the reactance element, the current flowing through the conductive member 225 can be easily adjusted, and the current distribution can be more finely adjusted at a desired frequency. It becomes. For example, cellular phones use not only 2 GHz but also 1.7 GHz and 800 MHz, and the frequency band used in portable wireless devices covers a wide range. Good ground conditions can be obtained only by adjusting the conductive member 225 alone. May be difficult. In such a case, it becomes easy to obtain a good ground condition at a desired frequency by using the reactance element in combination.

(Modification 3)
FIG. 8 is a schematic configuration diagram showing a configuration of a portable wireless device according to the third modification of the present embodiment, and corresponds to FIG. The same parts as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in the front view of FIG. 8A and the side view of FIG. 8B, in the portable wireless device 100c according to the modification 3, the flexible substrate 241 for the camera module 240 is provided on the back side of the camera module 240. Has been placed. Further, a camera sheet metal 243 that functions as a shield for the camera module 240 is disposed on the back side of the flexible substrate 241.

  FIG. 9 is a partial cross-sectional view showing a state when the cross section taken along the broken line Xc in FIG. 8B is viewed from the upper side in FIG. 8B, and corresponds to FIG. The same parts as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in FIG. 9, the camera sheet metal 243 is not in contact with the flexible substrate 241 or the lower substrate 210, but is attached to the lower substrate 210 by a spring contact 244 and electrically connected to the ground pattern via the reactance element 245. It is connected to the. Further, the camera sheet metal 243 is disposed in parallel and close to the flexible substrate 241 and is capable of capacitive coupling with the flexible substrate 241. As a result, the ground current from the antenna power supply unit 222 can also flow through the camera sheet metal 243, and the current distribution can be made better.

(Modification 4)
FIG. 10 is a partial cross-sectional view showing the configuration of the cutout portion of the portable wireless device according to the fourth modification of the present embodiment, and corresponds to FIG. The same parts as those in FIG. 9 are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in FIG. 10, in the portable wireless device according to Modification 4, the conductive member 225 d is connected to the first protrusion 212, but is not connected to the second protrusion 213. However, the conductive member 225d extends long toward the second protrusion 213, and is capable of capacitive coupling with the ground pattern of the second protrusion 213. Accordingly, the camera sheet metal 243 can be connected to the ground pattern at a high frequency by capacitive coupling. That is, since the conductive member 225d and the second protrusion 213 are electromagnetically connected, the ground current from the antenna power feeding part 222 can flow through the camera sheet metal 243, and the second protrusion 213 side is electrically connected. Desired characteristics can be ensured without securing a contact. Accordingly, the present invention can be applied to the case where an electrical contact with the second protrusion 213 cannot be provided due to the presence of other circuit components, and the degree of freedom in circuit design can be increased. In addition, although it was set as the structure which provides an electrical contact in the feed point side, you may make it implement | achieve by the capacitive coupling also about the electrical connection in the feed point side.

(Modification 5)
FIG. 11 is a schematic configuration diagram showing the configuration of the portable wireless device according to the fifth modification of the present embodiment, and corresponds to FIG. The same parts as those in FIG. 8 are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in the front view of FIG. 11 (A) and the side view of FIG. 11 (B), the portable wireless device 100e according to the modified example 5 is a small circuit board (sub circuit board) arranged so as to overlap the lower board 210. ) 250. The small circuit board 250 has an opening 251 in the portion of the camera module 240 and has a shape surrounding the camera module 240. The small circuit board 250 is mounted with a first speaker 252 and a second speaker 253 for outputting sound at positions overlapping the first protrusion 212 and the second protrusion 213. In the fifth modification, the conductive member 225e is disposed in a space between the small circuit board 250 and the lower board 210, and is electrically connected not only to the lower board 210 but also to the small circuit board 250.

  FIG. 12 is a partial cross-sectional view showing a state when the cross section taken along the broken line Xe in FIG. 11B is viewed from the upper side of the paper in FIG. 11B, and corresponds to FIG. The same parts as those in FIG. 10 are denoted by the same reference numerals, and description thereof will be omitted.

  As illustrated in FIG. 12, in the portable wireless device 100e according to the modification 5, the conductive member 225e is not connected to the second protrusion 213 in the same manner as the modification 4, and the second protrusion 213 is not connected. Projected long to the side. The conductive member 225e in the modified example 5 is further arranged in proximity to the reactance element 254 that is disposed on the surface on the lower substrate 210 side of the small circuit board 250 and connects the first speaker 252 and the small circuit board 250. And are arranged so as to be capable of capacitive coupling.

  Since the first speaker 252 is close to the antenna power supply unit 222, the antenna current is distributed in the line of the first speaker 252 due to electromagnetic coupling. Therefore, as in this modification, the first speaker 252 can be separated from the small circuit board 250 in high frequency by way of the reactance element 254. In addition, the reactance element 254 connected to the first speaker 252 where the antenna current is likely to be distributed and the conductive member 225 are electromagnetically connected, so that the ground pattern of the small circuit board 250 is also connected to the ground pattern from the antenna power supply unit 222. A ground current can flow, and it becomes easy to obtain better ground conditions. In addition, since an electrical contact between the small circuit board 250 and the conductive member 225e is not necessary, the degree of freedom in circuit design can be increased.

  As described above, the conductive member 225 can adopt various shapes and connection forms, both of which are the first protrusion 212 and the second protrusion in a path different from the ground pattern of the lower substrate 210. The unit 213 is electrically connected.

  Next, the effect obtained by providing the conductive member 225 will be described using simulation results.

  FIG. 13 is a diagram illustrating a simulation result of the current distribution of the portable wireless device 100 when the antenna power feeding unit 222 outputs a current of 1940 MHz, and corresponds to FIGS. 17 and 18.

  In a conventional portable wireless device that has a cutout portion and is not provided with the conductive member 225, as described with reference to FIG. 18, the periphery of the camera module 240 in the lower housing 200, that is, the cutout portion 211 of the lower substrate 210. Current concentrates in the surrounding area. Further, it can be seen from FIG. 18 that a small amount of current does not flow in the left side region.

  On the other hand, in the case of the portable wireless device 100 according to the present embodiment in which the conductive member 225 is provided, as shown in FIG. 13, current concentration on the peripheral portion of the notch 211 is suppressed, and the lower casing 200 is suppressed. The current flowing in the region on the left side surface of is increasing, and the current distribution is more averaged. From this, it can be seen that the provision of the conductive member 225 suppresses local current concentration and improves the current distribution of the ground pattern.

  FIG. 14 is a diagram illustrating a simulation result of the antenna performance when the conductive member 225 is not provided, and FIG. 15 is a diagram illustrating a simulation result of the antenna performance when the conductive member 225 is provided. 14A and 15A are impedance charts, and FIGS. 14B and 15B are diagrams showing frequency characteristics of a voltage standing wave ratio (VSWR). It is. In FIG. 14A to FIG. 15B, the markers with the same numerals correspond to the same frequency. 14A to 15B, the range of the markers “3” to “5” corresponds to the frequency band 410 of 1.7 to 2 GHz used in the mobile phone.

  As shown in FIG. 14B, when the conductive member 225 is not provided, the voltage standing wave ratio exceeds the value “2” in the frequency band 410. The closer the voltage standing wave ratio is to “1”, the better the antenna performance.

  On the other hand, as shown in FIG. 15B, when the conductive member 225 is provided, the voltage standing wave ratio in the frequency band 410 is suppressed to a value “2” or less. Further, comparing FIG. 14A and FIG. 15B, the impedance in the frequency band 410 is distributed to a value closer to 50Ω. That is, it can be seen that the band performance is improved and the antenna performance is improved when the conductive member 225 is provided rather than when the conductive member 225 is not provided.

  As described above, according to the present embodiment, the first protrusion 212 and the second protrusion 213 formed on both sides of the notch 211 of the lower substrate 210 are connected by the conductive member 225. To do. As a result, current can be guided to the second protrusion 213 through a path different from the ground pattern, so that current concentration on the peripheral portion of the notch 211 is suppressed and the current distribution of the lower substrate 210 is expanded. The antenna performance can be improved even when the circuit board has a notch. That is, it is possible to dispose electronic components such as camera modules in a circuit board in a state in which a decrease in radiation efficiency is suppressed, thereby reducing the thickness, size, and weight of the portable wireless device 100 and wireless communication. It is easy to achieve both quality maintenance. In particular, in the case of a mobile phone, it is possible to improve the call gain compared to the conventional case.

  Further, as a configuration of the conductive member 225, a radiation element or a device design can be obtained by using a reactance element, a circuit component having conductivity, or adopting capacitive coupling as a coupling form of the conductive member 225 to the ground pattern. The degree of freedom can be easily improved.

  In the present embodiment, the case where the shape of the cutout portion is a U-shape has been described as an example. However, if the cutout portion is formed by cutting out any side of the ground pattern, an L-shape or a T-shape is used. Etc., and can be applied to notches of any shape.

  In the present embodiment, the electronic component provided in the notch portion of the ground pattern has been described as a camera module. However, the electronic component provided in the notch portion is not particularly limited. From the viewpoint of obtaining an effect that a part arranged in the notch can be used as a part or all of the conductive member, an electronic part using a circuit board or a sheet metal having a conductive part such as a ground pattern is used. It is desirable to provide it.

  In the present embodiment, the case where the present invention is applied to a foldable mobile phone has been described. However, the present invention is not limited to this, and a ground pattern is provided and a circuit board having a notch is further provided with an antenna. The present invention can be applied to various portable wireless devices provided with a power feeding unit. For example, the present invention can be applied to a portable wireless device such as a personal digital assistant (PDA) or a personal computer having a wireless communication function. In the point that current concentration in the peripheral part of the notch can be effectively suppressed, the present invention arranges the feeding point of the antenna feeding part on one of the two protrusions on both sides of the notch. This is particularly suitable for portable radio devices.

  The portable wireless device according to the present invention is useful as a portable wireless device that can improve the antenna performance even when the circuit board has a notch.

1 is a schematic configuration diagram of a portable wireless device according to an embodiment of the present invention. Schematic perspective view of the lower substrate in the present embodiment Schematic configuration diagram of another example of the portable wireless device according to the present embodiment Partial sectional view of another example of the portable wireless device according to the present embodiment Partial sectional view of portable wireless device according to the present embodiment Schematic configuration diagram of a portable wireless device according to Modification 1 of the present embodiment Schematic partial configuration diagram of a portable wireless device according to Modification 2 of the present embodiment Schematic configuration diagram of a portable wireless device according to Modification 3 of the present embodiment Partial sectional view of a portable wireless device according to Modification 3 of the present embodiment Partial sectional view of a portable wireless device according to Modification 4 of the present embodiment Schematic configuration diagram of a portable wireless device according to Modification 5 of the present embodiment Partial sectional view of a portable wireless device according to Modification 5 of the present embodiment The figure which shows the simulation result of the current distribution of the portable radio | wireless machine which concerns on this Embodiment The figure which shows the simulation result of the antenna performance when the electroconductive member in this Embodiment is not provided The figure which shows the simulation result of the antenna performance at the time of providing the electroconductive member in this Embodiment Schematic configuration diagram of a conventional portable radio The figure which shows the simulation result of the antenna characteristic of the conventional portable radio | wireless machine shown in FIG. The figure which shows the simulation result of the antenna characteristic of the conventional portable radio | wireless machine which provided the notch part in the circuit board

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Portable wireless device 200 Lower housing | casing 210 Lower board | substrate 211 Notch part 212 1st projection part 213 2nd projection part 221 Terminal for cables 222 Antenna feeding part 223 Matching circuit 224 Wireless circuit 225 Conductive member 226, 227 Electrical contact 230 Antenna Element 240 Camera Module 241 Flexible Board 242 Camera Connector 243 Camera Sheet Metal 244 Spring Contact 245, 254 Reactance Element 250 Small Circuit Board 251 Opening 252 First Speaker 253 Second Speaker 300 Upper Housing 310 Upper Board 311 Cable Terminal 312 Board connection cable

Claims (10)

A circuit board;
A notch cut out on one side of the circuit board;
A camera unit disposed in the notch,
An antenna element disposed on one side of the circuit board provided with the notch,
A ground pattern formed on the circuit board;
Of the circuit board, it provided around the cutout portion, and a power supply unit for supplying high frequency power to the antenna element,
A conductive member provided across the notch, electrically connecting the ground pattern, and having a plane perpendicular to the circuit board ;
A portable radio. A circuit board;
A notch cut out on one side of the circuit board;
A camera unit disposed in the notch,
An antenna element disposed on one side of the circuit board provided with the notch,
A ground pattern formed on the circuit board;
Of the circuit board, it provided around the cutout portion, and a power supply unit for supplying high frequency power to the antenna element,
A conductive member provided across the notch, electrically connecting the ground pattern, and disposed between the antenna element and the circuit board in the thickness direction of the circuit board ;
A portable radio. A circuit board having a first protrusion, a second protrusion, and a notch positioned between the first protrusion and the second protrusion ;
A camera unit disposed in the notch,
An antenna element disposed on one side of the circuit board provided with the notch,
A ground pattern formed on the circuit board;
A power feeding section that is provided on the first projecting section or the second projecting section and supplies high-frequency power to the antenna element ;
A conductive member for electrically connecting the ground pattern;
An electrical contact that electrically connects the ground pattern and the conductive member;
With
The conductive member is provided across the notch,
The portable wireless device, wherein the first protrusion and the second protrusion are electrically connected by a path different from the ground pattern by the conductive member . The power feeding part has a power feeding point on one of two protrusions on both sides of the notch part of the circuit board.
The portable wireless device according to any one of claims 1 to 3 . The circumferential length of the notch is not less than 1/4 of the wavelength λ of the desired frequency.
The portable wireless device according to any one of claims 1 to 4 . The conductive member electrically connects a portion of the ground pattern located at the tip of two protrusions on both sides of the notch.
The portable wireless device according to any one of claims 1 to 5 . The conductive member is connected to the ground pattern via a reactance element.
The portable wireless device according to any one of claims 1 to 6 . The conductive member includes a sheet metal disposed at a lower portion of the camera unit , and the sheet metal is connected to the ground pattern via a reactance element.
The portable wireless device according to any one of claims 1 to 7 . The conductive member is electromagnetically connected to the ground pattern by capacitive coupling.
The portable wireless device according to any one of claims 1 to 8 . Speaker parts;
A sub circuit board for connecting the speaker component and the circuit board;
The conductive member is
Electromagnetically connected to the sub circuit board by capacitive coupling,
The portable wireless device according to any one of claims 1 to 9 .

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