JP3343764B2 - Portable wireless device and planar antenna - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable radio apparatus and a flat antenna used for mobile communication or satellite broadcast reception in a microwave band or a millimeter wave band.

[0002]

2. Description of the Related Art In a radio apparatus used for mobile communication or satellite broadcast reception, a parabolic antenna is first considered as an antenna system. This antenna is effective in terms of electrical characteristics such as high antenna efficiency, but because the parabolic reflector has a concave shape, it has a three-dimensional shape such that the primary radiator must project in front of the reflector. , Poor storage. Therefore, it can not be said that it is suitable for a portable wireless device required to be compact.

On the other hand, a system using a planar antenna such as a microstrip antenna can be developed and stored because it can be formed in a planar shape, and is effective for a portable wireless device. As an example of this, see, for example,
No. 03523, JP-A-63-250203, JP-A-63-250203
An antenna system for a portable wireless device, such as that disclosed in Japanese Patent Application Laid-Open No. 3-174431, can be mentioned. In these systems, for example, an array of microstrip antennas and a feed circuit for synthesizing radio waves of each antenna element are formed on a dielectric substrate. Since this antenna has a planar shape, it can be housed integrally with a bag or case. It is shown that when a large antenna aperture is required to increase the gain, a method such as folding or sliding can be used to realize an antenna system with excellent storability and expandable structure.

[0004] Thus, it can be said that the conventional planar antenna for a portable radio device is effective in terms of storability and ease of deployment. However, the following problems can be considered in terms of electrical characteristics.

[0005] A power supply circuit for synthesizing or distributing the array is required. For this reason, the conventional method uses a microstrip line to constitute the power supply circuit. But,
In this power supply circuit, the line becomes long, and power loss occurs due to dielectric loss, radiation loss, conductor loss, and the like. Among them, the dielectric loss is particularly large, which becomes particularly large when the array becomes large or the frequency becomes high, which causes a very large power loss. Therefore, in such a case, the efficiency of the antenna is significantly reduced.

Although it is possible to divide the antenna for storage and deployment, in this case, the problem is how to electrically connect the divided sub-arrays. For example, it is possible to use a flexible cable or rotary joint that can accommodate storage and deployment.However, when a cable is used, the phase changes when the cable is moved, or when a rotary joint is used. There are problems such as durability and an increase in price. Furthermore, it is important to combine (distribute) the sub-arrays in the same phase when the divided sub-arrays are electrically connected. To this end, it is necessary to improve the position accuracy of the antenna or fine-tune the position of the antenna. Function is needed.

[0007]

As described above, in the conventional portable radio apparatus, the storage capacity is poor when a parabolic antenna or the like is used, or when the power supply circuit is used when a planar antenna is used. There has been a problem that the electrical connection in the case of loss or division / expansion becomes complicated. According to the present invention, a portable wireless device having an antenna which can solve the above-described problems, can be housed and deployed, and is easily electrically connected, is provided.
And a planar antenna .

[0008]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
In the portable wireless device of the present invention, the dielectric substrate and the
A plurality of patch antennas formed on an electric circuit board, and
A transmission line connected to each of the patch antennas,
The plurality of patch antennas on a dielectric substrate and the transmission line
A dividing portion provided in a portion where a road is not formed;
The dielectric substrate is divided at the division portion and the inner surface of the lid is divided.
It can be integrated and stored and can be deployed when used
The dielectric on the inner surface of the transportable case and the lid unfolded during use
Primary radiation located in the case at a position facing the body
An antenna, and the dielectric substrate is folded at the divided portion.
Inside the case by folding, splitting or sliding
And the length of each of the transmission lines can be set appropriately.
The position of the radio wave totally reflected by the transmission line
The phase can be adjusted so that the primary radiating antenna can be
To concentrate the reflected radio waves, and the primary radiation antenna
Transmit and receive radio waves via reflections from multiple patch antennas
It is characterized by that. In addition, the portable
In a wireless device, the patch antenna may have a frequency or polarization
Operating on two different radio waves, wherein the transmission line is:
Each patch antenna for total reflection of each of the two radio waves
Characterized in that it is connected to two
You. Also, in the portable wireless device of the present invention, the first dielectric
And a ground formed on one surface of the first dielectric substrate.
A conductor, and a first dielectric substrate disposed on the other surface of the first dielectric substrate.
2, the first dielectric substrate and the second dielectric substrate.
A plurality of first patchers arranged and formed between dielectric substrates
Antenna and each of the plurality of first patch antennas
A first transmission line connected to the second transmission line,
On the surface opposite to the surface on which the first patch antenna is formed
The first plurality of patch antennas are arranged and different from the first plurality of patch antennas.
And a plurality of second patch antennas having different sizes.
Second patch antenna connected to each of the number of second patch antennas.
A transmission line, the first dielectric substrate and the second dielectric substrate;
The plurality of first patch antennas and the plurality of second patches
Switch antenna, the first transmission line, and the second transmission
The split part provided in the part where the line is not formed
The first dielectric substrate and the second dielectric substrate are Division
Divided into and integrated into the inner surface of the lid
Both are portable cases that can be deployed when used, and
At the position facing the plate-like substrate on the inner surface of the spread lid,
And disposed in the case, facing the first dielectric substrate.
A first primary radiation antenna provided at a position
The second primary provided at a position facing the second dielectric substrate
A radiation antenna, wherein the dielectric substrate is
The case can be folded, split, or slide
And the first transmission line and the second transmission line.
By appropriately setting the length of each of the two transmission lines,
The light is totally reflected by the first transmission line and the second transmission line.
The phase of the radio wave can be adjusted, and the first primary
Different for the radiating antenna and the second primary radiating antenna.
Of the first primary radiation
An antenna and a second primary radiating antenna are connected to the plurality of first radiating antennas.
A patch antenna and the plurality of second patch antennas
Transmitting and receiving radio waves of different frequencies through the reflection of
It is a feature. Also, the portable wireless device of the present invention
Now, on the dielectric substrate, the front and back of the dielectric substrate
A plurality of patchers arranged and formed so as to correspond one-to-one.
Antenna and the one-to-one corresponding patch antenna
The connected transmission line and the plurality of packages of the dielectric substrate.
To the part where the antenna and the transmission line are not formed.
The divided portion provided, and the dielectric substrate is connected to the divided portion.
The dielectric substrate is integrated into a lid and stored.
And a portable case that can be deployed at the time of use.
The position of the inner surface of the lid that is sometimes unfolded, facing the plate-like substrate
And a primary radiation antenna arranged in the case.
The dielectric substrate may be folded, divided,
It can be stored in the case by any of the slides.
By appropriately setting the length of each transmission line,
The phase of the radio wave propagating through the transmission line can be adjusted.
When transmitting, the transmitted radio wave is concentrated on the primary radiation antenna.
And the primary radiation antenna has a surface on the dielectric substrate.
Power is transmitted through the transmission of the patch antenna
It is characterized by transmitting and receiving waves. Also book
According to the planar antenna of the present invention, the first dielectric substrate and the second
A ground conductor formed on one surface of the first dielectric substrate;
A second dielectric substrate disposed on the other surface of the first dielectric substrate
And between the first dielectric substrate and the second dielectric substrate
set on A plurality of first patch antennas formed, and
And a first patch antenna connected to each of the plurality of first patch antennas.
Transmission line and the first package of the second dielectric substrate.
H is arranged and formed on the surface opposite to the surface on which the antenna is formed,
A plurality of patches having a size different from that of the first plurality of patch antennas.
The number of second patch antennas and the plurality of second patch antennas.
A second transmission line connected to each of the antennas,
A first one provided at a position facing the first dielectric substrate
A secondary radiation antenna, and a position facing the second dielectric substrate.
And a second primary radiation antenna provided in the
It is characterized by the following.

[0009]

[0010]

[0011]

[0012]

Embodiments of the present invention will be described below.

FIG. 1 is a perspective view showing a use state of a portable wireless device according to an embodiment of the present invention. The rectangular case 5 has a structure having a space inside, and a handle 6 for carrying is provided on the outside and legs 14 with adjustable height are provided at four corners on the lower surface.
Is provided. Antennas 3 and 4 are attached to rectangular plate-like substrates 1 and 2. A hinge 9 is attached to the plate-like substrates 1 and 2, and a hinge 10 is attached to the plate-like substrate 2 and the case 5, respectively, so that the plate-like substrates 1 and 2 can be fixed at a predetermined position and an angle when used. A horn antenna 7 as a primary radiator and a transceiver 8 are mounted inside the case 5, and the horn antenna 7 is connected to a waveguide coaxial converter 13 and transmitted and received from the waveguide coaxial converter 13 by a coaxial cable 11. Machine 8. The transceiver 8 has a built-in power supply device, and can supply power for operation of the transceiver from a battery or an external power supply. The transceiver 8 is provided with a connector terminal 12 for connection to an external device, for example, an audio device such as a microphone or a speaker, an image device such as a display or a camera, or a computer for signal processing.
FIG. 2 is a lateral view showing a use state of the portable wireless device. As shown in FIG. 2, the transceiver 8, the horn antenna 7, and the waveguide coaxial converter 13 are housed inside the case 5. The horn antenna 7 is arranged to face the plate-like bases 1 and 2. Here, it is assumed that there is no obstacle during the propagation of the radio wave from the horn antenna to the antennas 3 and 4 in the plate-like bases 1 and 2.

FIG. 3 shows how the plate-like base is stored and unfolded. FIG. 3A shows a stored state. Plate-like substrates 1, 2
And fold it over the case 5 and fix it. With such a structure, the antenna and the transceiver can be integrated and stored. In addition, it is possible to store an audio device, an image device, a computer, and the like using the space in the case, and in this case, all devices used for communication can be stored compactly. Audio equipment, imaging equipment, computers, etc. can be integrated with the case, but when using these equipment, the presence of the user may degrade the characteristics of the antenna. Using a cable to work away from the antenna is more effective. At the time of storage, the handle 6 can be used to carry it freely anywhere. FIG.
(B) and FIG. 3 (c) show a state in the middle of the development.
From this, it can be seen that the plate-like bases 1 and 2 are sequentially opened and the structure is such that they can be easily deployed.

Next, the configuration and operation of the antennas 3 and 4 will be described. The antennas 3 and 4 are configured by an array of planar antennas, and the antennas 3 and 4 have basically the same configuration. FIG. 4 shows a cross-sectional view of the antenna 3 (4). The antenna is formed by laminating a thin planar radome 21 and a dielectric substrate 22. Here, the radome 21 is a cover for preventing corrosion and the like of the antenna. The dielectric substrate 22
A ground conductor 23 is provided on the lower surface, and a patch antenna 24 and a microstrip line 25 connected thereto are provided on the upper surface. FIG. 5 shows a view of the dielectric substrate viewed from above. The patch antenna and the microstrip line can be easily formed by a method such as etching. The patch antenna is sized and shaped to resonate with respect to the frequency and polarization of radio waves transmitted and received by the portable wireless device. For example, in the case of reception, the radio wave is input to all patch antennas. The radio wave input to the antenna propagates to the microstrip line, but one end of the microstrip line is in an open state, and the radio wave propagated here is totally reflected and radiated again from the patch antenna. Will be. At this time, by adjusting the length of the microstrip line, the phase of the radio wave re-radiated from each patch antenna can be changed for each patch antenna. By adjusting the phase distribution of the entire array in this manner, the re-radiated radio waves can be received intensively by the horn antenna arranged in the case and placed opposite to the plate-shaped base. In the case of transmission, the same operation is performed except that the propagation direction of the radio wave is reversed. That is, the antenna 3 is paired with the horn antenna 7.
And an antenna 4 to form a planar antenna.
The antenna equivalently operates as one planar antenna
You. Furthermore, this equivalent planar antenna is a patch antenna
And part where microstrip line is not formed
As shown in FIG.
It can be divided into teners 4. Such an antenna is called a reflectarray (references, J. Hua).
ng. "Microstrip reflector
ay ”, IEEE Antennas & Propag
ation Society SymposiumDi
gest, 33.9, 1991. ), Currently being researched and developed. In the present invention, the following effects are obtained by using the antenna of this type as the antenna of the portable wireless device.

There is no need to configure a feeder circuit as compared with a conventional system using a planar antenna. Therefore, the number of layers of the substrate constituting the antenna is reduced, which is advantageous in reducing the weight, size, and cost. Also, since there is no power loss due to the power supply circuit, the efficiency of the antenna can be increased. This is more effective as the array antenna is larger and the frequency is higher.

Each of the planar antenna elements constituting the array is configured completely independently, and the operation is also independent. Therefore, the array antenna can be freely divided or folded. It has a high degree of freedom in how to store and deploy the antenna, and is very effective as an antenna for a portable wireless device. Further, when the antenna is deployed, there is no need for a phase adjusting mechanism for synthesizing the electrical connection and the phase between the divided arrays into the same phase, so that the manufacturing is simplified and the cost can be reduced.

The primary radiation antenna can be fixedly installed in the case, the plate-like base can be fixed at a desired position when the base is unfolded, and the position and angle can be set relatively easily and with high accuracy. Good things can be realized. A highly durable one can be realized without using a complicated mechanical mechanism in deployment and storage.

In the plate-like base, the surfaces on which the antennas are formed can be overlapped and housed together.
The planar antenna can be protected from accidents such as dropping the wireless device or hitting another object. Even if a part of the planar antenna is damaged, only a part of the characteristics of many antenna elements is deteriorated, so that the characteristics of the whole antenna are not significantly deteriorated. If there is a feed circuit, the antenna may not operate at all if the last combined line is damaged, but there is no such concern in the configuration of the present invention. From the above, it can be said that the portable wireless device of the present invention has a function required for a portable device that is resistant to vibration, impact, and environmental changes, and is very effective. The effects of the present invention are the same even if the following changes are made in the embodiment of the present invention.

Similar effects can be obtained even if the planar antenna and the microstrip line are configured as follows. In the example of FIG. 6, a so-called proximity coupling antenna is used as the planar antenna. FIGS. 6A and 6B are a cross-sectional view showing one element in the array of the planar antenna and a top view seen from above the dielectric substrate 32. Here is radome 3 from above
1, a dielectric substrate 32, 33 is sequentially superposed, and a patch antenna 3 is provided on the upper surface of the dielectric substrate 32.
4. A microstrip line 35 is formed on the lower surface, and a ground conductor 36 is formed on the lower surface of the dielectric substrate 33. In this case, a radio wave propagates between the microstrip line and the patch antenna by electromagnetic coupling. There is an advantage that the antenna element and the line can be easily matched, and the thickness of the dielectric can be increased only for the patch antenna in order to widen the operating band of the patch antenna. In the example of FIG. 7, a so-called slot-coupled antenna is used as the planar antenna.
FIGS. 7A and 7B are a cross-sectional view showing one element in the array of the planar antenna and a top view seen from above the dielectric substrate 37. Here, from above, the radome 36 and the dielectric substrate 3
7 and 38 are sequentially superimposed. A patch antenna 39 is provided on the upper surface of the dielectric substrate 37, a conductor 41 having a slot 40 formed thereon, and a microstrip line 42 is provided on the lower surface of the dielectric substrate 38. Each is formed. In this case, a radio wave propagates by electromagnetic coupling between the microstrip line and the patch antenna via the slot. Since the antenna element and the line can be separated, each can be configured and adjusted independently, which increases the degree of freedom of design and is effective. For example,
The arrangement of the microstrip line is not limited to the arrangement of the array. Further, by providing a quarter-wave transformer, a stub, or the like on the microstrip line, there is an advantage that the antenna and the line can be easily matched.

In the embodiments described above, the antenna is described as operating with linear polarization. However, in the case of operating with circular polarization, the following configuration may be employed. FIG.
FIGS. 9 and 10 are cross-sectional views of the microstrip antenna of FIG. 4, the close-coupled antenna of FIG. 6, and the slot-coupled antenna of FIG. FIG. FIGS. 8A and 8B
In (c), when circular polarization of the microstrip antenna is performed, cuts or protrusions are provided in a part of a square or circular patch antenna as shown in the figure, and circular polarization is generated by solving the degenerate mode. Let it. Alternatively, a circularly polarized wave can be generated by forming a rectangular patch and connecting a line to the corner, or by using an elliptical patch. In the case of the close coupling antenna shown in FIGS. 9A, 9B, and 9C and the case of the slot coupling antenna shown in FIGS. 10A, 10B, the size of the patch is changed in the same manner as in FIG. Circular polarization occurs. FIG. 10
(C) shows an example of a circularly polarized antenna in which a non-excitation slot 43 is provided in addition to the slot 40 directly vibrated from the line. Although the above description has been given of the example of the circularly polarized antenna fed by one point, a circularly polarized antenna fed by two points can be used. FIGS. 11A and 11B are a cross-sectional view and a top view showing the configuration of a two-point feeding circularly polarized antenna in the case of a microstrip antenna. Here, the patch antenna is connected to two microstrip lines 45 and 46, and the microstrip lines 45 and 46 are connected to the hybrid coupler 44. The hybrid coupler is connected to another microstrip line 47, 48,
One ends of the microstrip lines 47 and 48 are open. In the configuration example of FIG. 11, since the two-point power supply is operated for both right-handed and left-handed circularly polarized waves, there is an advantage that the band of the circularly polarized waves is widened.

In order to extend the operating band of the antenna, FIG.
The effect of the present invention is the same even when a structure in which another patch antenna 50 is stacked on the patch antenna 24 as shown in the example of 2 (a) and 2 (b) is used. Here, 4
9 is a dielectric.

In the above example, an example in which a microstrip line is used as a line connected to an antenna has been described. Even if used, there is an equivalent effect. As for the antenna element, it is also possible to use a method other than the antennas described above, for example, a planar antenna such as a slot antenna, a flat plate dipole antenna, or a spiral antenna.

Even if the transmission line is not open (open) but short-circuited (short-circuited), the radio wave is totally reflected here and can be used in the present invention. As a method of short-circuiting a microstrip line, there is a method of connecting a conductor of the line to a ground conductor with a conductive material (solder, through hole, or the like) at a point where the microstrip line is short-circuited.

Although an example in which a horn antenna is used as the primary radiation antenna has been described, similar effects can be obtained by using any other antenna. For example, the following may be used. Part of the transceiver may be integrated with the primary radiating antenna. For example, a frequency converter and an amplifier can be integrated.

The effect of the present invention is the same even if a slide type or a method of assembling divided antennas is used as a method of storing and deploying the antenna. FIGS. 13 (a), 13 (b), 13 (c)
Shows the state of storage and deployment when a slide is used. At the time of storage, the plate-shaped substrate 51 can be stored compactly by overlapping it on the case 5. The slidable plate-shaped base 52 is built in the plate-shaped base 51. Plate-like substrate 52
An array of planar antennas as shown in FIGS. 4 and 5 is formed on the surface of the flat substrate 51 and the surface of the flat substrate 51 that appears when the flat substrate 52 is slid and unfolded. In this case, the structure is such that it is easy to maintain the parallelism between the plate-shaped base 51 and the plate-shaped base 52, which is convenient for improving the positional accuracy of the antenna surface. FIGS. 14A and 14B show an example in which the divided antennas are assembled and stored. Case 5
The primary radiation antenna 7, the transceiver 8 and the like are fixed in the space inside the antenna.
It is a structure that can also store. The lid 58 of the case is fixed to the case 5 by the hinge 53. The lid is closed at the time of storage, and the lid can be expanded at the time of deployment and fixed at a desired angle. FIG. 15 shows a state at the time of development. By assembling the divided antennas and fixing them to the lid 58, an antenna that operates as a portable wireless device is formed. Since the antenna can be divided and separated, there is an advantage that the antenna can be easily replaced when it is damaged. When the portable wireless device is operated at two different frequencies, it can be dealt with by making the planar antenna shown in FIGS. 4 and 5 have a configuration as shown in FIGS. In this case, the antenna is configured by sequentially superimposing a radome 61, a dielectric substrate 62, and a dielectric substrate 63. A patch antenna 64 and a microstrip line 65 connected thereto are formed on the upper surface of the dielectric substrate 62. A patch antenna 66 and a microstrip line 67 connected thereto are formed on the upper surface of the dielectric substrate 63. A ground conductor 68 is formed. In this case, the patch antenna 64 operates so as to regard the patch antenna 66 as a ground conductor, and operates on radio waves of high frequency.
A patch antenna 66 larger than the patch antenna 64 operates on radio waves of lower frequency. By opening one end of the microstrip line connected to each antenna and adjusting the line length, the phase distribution is optimized at each frequency so that radio waves radiated from the patch antenna concentrate on the primary radiation antenna. Can be set. Since the phase distribution can be set at two frequencies completely independently, the position where radio waves re-emitted from the patch antenna are concentrated can be changed by the frequency. In this case, as shown in FIG. 17, the primary radiation antennas 70 and 71 can be separately installed. The primary radiation antennas 70 and 71 are connected to waveguide coaxial converters 72 and 73, respectively,
4 and 75 connect to the transceiver 8. With this configuration, a portable wireless device that operates simultaneously at two different frequencies can be realized, and the primary radiation antenna can be separately configured for each frequency, so that production is simple.
The same can be said for the case of operating with two different polarizations. In this case, the configuration example of the antenna is shown in FIGS.
Shown in In this case, the antenna is configured by overlapping the radome 170 and the dielectric 171. A patch antenna 172 is formed on the upper surface of the dielectric substrate 171, and a ground conductor 173 is formed on the lower surface. Microstrip lines 174 and 175 are connected to the patch antenna 172, and radio waves propagating on each line correspond to two orthogonal polarized waves. By adjusting the lengths of the microstrip lines 174 and 175, the phases can be set independently for two orthogonal polarizations. Therefore, by optimizing the entire phase distribution, it is possible to set each polarization so that radio waves re-emitted from the patch antenna concentrate on the primary radiation antenna. Next, a second embodiment of the present invention will be described.

FIG. 19 is a lateral view showing a second embodiment of the present invention. The second invention is different from the embodiment shown in FIG. 1 in the configuration of the antenna in the plate-like base, and the other configurations are exactly the same. Similar effects can be expected. FIG. 19 shows a state when the antenna is deployed.
For example, in the case of receiving a radio wave from a satellite,
Radio waves are received by antennas incorporated in 1, 82,
This radio wave is re-emitted and received by the primary radiation antenna 7. In the embodiment of FIG. 1, the re-radiation of the antenna is in the direction of reflection, but in the second invention, the re-radiation of the antenna is in the direction of transmission.

FIGS. 20 (a), 20 (b) and 20 (c) show a method of storing and deploying the antenna according to the second embodiment of the present invention. At the time of storage, the structure is such that it can be folded into the plate-like bases 81 and 82 and fixed to the overlapping case, so that it can be compactly integrated and stored, and is easy to carry. At the time of deployment, FIG.
As shown in (1), the plate-like substrates 81 and 82 are sequentially expanded. The connection between the plate-shaped bases 81 and 82 and the connection between the plate-shaped base 82 and the case 5 by a hinge or the like and the provision of a support 83 for fixing the angle and the position of the antenna at the time of deployment provide easy deployment and storage. And the antenna at the time of deployment can be fixed with high accuracy.

FIG. 21 is a sectional view of an antenna incorporated in the plate-like substrates 81 and 82 in the second embodiment. The antenna is formed by sequentially stacking dielectric substrates 91, 92, 93 and 94. A radome for protecting the antenna may be provided outside the dielectric substrate. FIG. 22 is a top view of the dielectric substrate 91 as viewed from above, FIG. 23 is a top view of the dielectric substrate 92 as viewed from above, and FIG. 24 is a top view of the dielectric substrate 94 as viewed from above. . Patch antenna 9 on top layer
5 and the lowermost patch antenna 101 correspond one to one. For example, when a radio wave is incident from above in FIG. 21, the radio wave received by the patch antenna is
Through the slot 96 formed in the triplate line 9
8 is propagated. This radio wave is transmitted through a slot 99 formed in the conductor surface 100 to the lowermost patch antenna 101.
And is re-emitted in the lower direction of FIG. At this time, the phase of the re-radiated radio wave can be arbitrarily adjusted by adjusting the line length of the triplate line 98. By optimally setting the phase distribution of the entire re-radiated array antenna, the radio waves can be concentrated on the primary radiation antenna.

In the second embodiment, an amplifier, a phase shifter, and the like can be formed in a triplate line. The amplifier and the phase shifter can be reduced in size and thickness by the MMIC technology, and can be incorporated in a multi-layer substrate such as an antenna. By incorporating an amplifier, reception and transmission radio waves can be amplified, and the amplitude distribution of the entire array antenna can be adjusted from electric signals to form an antenna pattern and increase the efficiency of the antenna. Further, by incorporating the phase shifter, the phase distribution of the array antenna can be adjusted by an electric signal, and the antenna pattern can be shaped and the beam can be scanned. Further, it is possible to electrically control the direction of the reception and transmission radio waves.
In this case, a power supply for the phase shifter and the amplifier and a circuit for exchanging electric signals for control are necessary.However, since the circuit operates at a low frequency near DC or near DC, it is necessary for RF electric signals. It can be easily configured as compared with the power supply circuit of FIG.

[0031]

With the above described configuration according to the present invention, it is easy to deploy and receiving antennas, peripherals transceivers such also be stored in a compact wireless device and a simple portable carrying
A planar antenna can be provided. In addition, power loss is small,
A highly efficient antenna can be realized, and a wireless device which has durability which is important for portable use and has few failures can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a portable wireless device of the present invention.

FIG. 2 is a lateral view showing an embodiment of the portable wireless device of the present invention.

FIG. 3 is a diagram showing a state of deployment and storage of an antenna in one embodiment of the portable wireless device of the present invention.

FIG. 4 is a sectional view showing the configuration of an antenna in one embodiment of the portable wireless device of the present invention.

FIG. 5 is a top view showing the configuration of an antenna in one embodiment of the portable wireless device of the present invention.

FIG. 6 is a cross-sectional view and a top view showing another example of the configuration of the antenna in one embodiment of the portable wireless device of the present invention.

FIGS. 7A and 7B are a cross-sectional view and a top view illustrating another configuration example of the antenna in one embodiment of the portable wireless device of the present invention. FIGS.

FIG. 8 is a cross-sectional view and a top view showing another configuration example of the antenna in one embodiment of the portable wireless device of the present invention.

FIG. 9 is a cross-sectional view and a top view showing another configuration example of the antenna in the portable wireless device according to the embodiment of the present invention.

FIGS. 10A and 10B are a cross-sectional view and a top view illustrating another configuration example of the antenna in one embodiment of the portable wireless device of the present invention. FIGS.

FIGS. 11A and 11B are a cross-sectional view and a top view illustrating another configuration example of the antenna in one embodiment of the portable wireless device of the present invention. FIGS.

12A and 12B are a cross-sectional view and a top view illustrating another configuration example of the antenna in one embodiment of the portable wireless device of the present invention.

FIG. 13 is a diagram showing a state of deployment and storage of an antenna in one embodiment of the portable wireless device of the present invention.

FIG. 14 is a perspective view and a side view showing another example of an antenna shape in one embodiment of the portable wireless device of the present invention.

FIG. 15 is a perspective view showing another example of the antenna shape in one embodiment of the portable wireless device of the present invention.

FIG. 16 is a cross-sectional view and a top view showing another configuration example of the antenna in one embodiment of the portable wireless device of the present invention.

FIG. 17 is a perspective view showing another example of the antenna in one embodiment of the portable wireless device of the present invention.

FIG. 18 is a cross-sectional view and a top view showing another example of the configuration of the antenna in the portable wireless device according to the embodiment of the present invention.

FIG. 19 is a sectional view showing another embodiment of the portable wireless device of the present invention.

FIG. 20 is a diagram showing a state of storage and deployment of an antenna in another embodiment of the portable wireless device of the present invention.

FIG. 21 is a sectional view showing the configuration of an antenna according to another embodiment of the portable wireless device of the present invention.

FIG. 22 is a top view showing the configuration of an antenna according to another embodiment of the portable wireless device of the present invention.

FIG. 23 is a top view showing the configuration of an antenna according to another embodiment of the portable wireless device of the present invention.

FIG. 24 is a top view showing the configuration of an antenna according to another embodiment of the portable wireless device of the present invention.

[Explanation of symbols]

1, 2, 51, 52, 81, 82 Plate base 3, 4 Antenna 5 Case 6 Handle 7, 71, 72 Horn antenna 8 Transceiver 9, 10, 53 Hinge 21, 31, 36 , 61, 170 ... radome 22, 32, 33, 37, 36, 62, 63, 91, 9
2, 93, 94, 171 dielectric substrate 23, 36, 173 ground conductor 24, 34, 39, 64, 66, 95, 101, 172
... patch antennas 25, 35, 42, 65, 67, 174, 175 ... microstrip lines 40, 96, 99 ... slots 54, 55, 56, 57 ... split antennas 83 ... support

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI H01Q 21/06 H01Q 21/06 H04B 1/08 H04B 1/08 Z 1/38 1/38 (56) References JP-A-64 -8703 (JP, A) JP-A-59-169205 (JP, A) JP-A-63-250203 (JP, A) JP-A-60-251706 (JP, A) JP-A-63-303523 (JP, A JP-A-63-174431 (JP, A) JP-A-64-82803 (JP, A) JP-A-63-292734 (JP, A) JP-A-2-65529 (JP, A) 181011 (JP, U) Actually open 1986-52808 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01Q 15/14-19/00 H01Q 1/08-1/44 H01Q 21/06 H04B 1/08-1/38

Claims (5)

(57) [Claims] 1. A dielectric substrate and a plurality of patch antennas formed on the dielectric substrate
When a transmission line connected to each of these patch antennas, the plurality of patch antenna and the heat transfer of the dielectric substrate
A dividing part provided in a portion where the transmission line is not formed, a portable case which is capable of dividing the dielectric substrate in the dividing part, integrally storing the dielectric substrate in an inner surface of a lid thereof, and being expandable in use; A primary radiating antenna disposed in the case at a position facing the dielectric on the inner surface of the lid that is sometimes unfolded, wherein the dielectric substrate is folded, divided,
Of the transmission line by appropriately setting the length of each of the transmission lines.
The phase of the radio wave totally reflected by the transmission line can be adjusted, and the reflected radio wave is concentrated on the primary radiation antenna during use.
And the primary radiating antenna is connected to the plurality of patch antennas.
Portable radio apparatus characterized by transmitting and receiving radio waves through the reflection on the Na. 2. The patch antenna operates for two radio waves having different frequencies or polarizations, and the transmission line is connected to each of the two patch antennas in order to totally reflect each of the two radio waves. The portable wireless device according to claim 1, wherein the portable wireless device is a portable wireless device. 3. A first dielectric substrate, a ground conductor formed on one surface of the first dielectric substrate, and a second dielectric disposed on the other surface of the first dielectric substrate.
And a substrate between the first dielectric substrate and the second dielectric substrate.
A plurality of first patch antennas formed and connected to each of the plurality of first patch antennas
A first transmission line and the first patch antenna of the second dielectric substrate are formed.
The first plurality is disposed and formed on a surface opposite to the formed surface.
A plurality of second patches having a size different from that of the second patch antenna.
And Chiantena, connected to each of the plurality of second patch antenna
A second transmission line, and the plurality of the first dielectric substrate and the second dielectric substrate;
A first patch antenna, the plurality of second patch antennas;
Forming the first transmission line and the second transmission line
Dividing the first dielectric substrate and the second dielectric substrate with each other,
Divided into parts and integrated into the inner surface of the lid
Portable case that can be deployed when used with
At the position facing the plate-like substrate on the inner surface of
It is arranged in the case and faces the first dielectric substrate.
A first primary radiation antenna provided at a position where
A second one provided at a position facing the second dielectric substrate
A secondary radiation antenna, wherein the dielectric substrate is folded, divided,
And the length of each of the first transmission line and the second transmission line.
The first transmission line and the front
The phase of the radio wave totally reflected by the second transmission line can be adjusted
In use, the first primary radiation antenna and the second primary radiation antenna
Reflected radio waves of different frequencies are concentrated on the
The first primary radiation antenna and the second primary radiation antenna.
The antenna includes the plurality of first patch antennas and the plurality of first patch antennas.
Different frequencies via reflection at the second patch antenna of
A portable wireless device for transmitting and receiving radio waves. 4. A dielectric substrate, a plurality of patch antennas arranged one-to-one on front and back surfaces of the dielectric substrate, and a plurality of patch antennas corresponding to the one-to-one correspondence, respectively. Transmission line, the plurality of patch antennas of the dielectric substrate , and the transmission line.
A dividing portion provided in a portion where the transmission line is not formed, and a portable case that is capable of dividing the dielectric substrate at the dividing portion and integrally storing the dielectric substrate in a lid shape and expanding when used. And a primary radiating antenna disposed in the case at a position on the inner surface of the lid that is unfolded during use and facing the plate-shaped substrate, wherein the dielectric substrate is folded, divided,
Of the transmission lines by appropriately setting the length of each of the transmission lines.
When the phase of the radio wave propagating through the transmission line can be adjusted and used
Concentrate the transmitted radio wave to the primary radiation antenna,
The portable radio device according to claim 1, wherein the primary radiation antenna transmits and receives radio waves through transmission of the patch antenna corresponding to a front surface and a rear surface on the dielectric substrate . 5. A first dielectric substrate, a ground conductor formed on one surface of the first dielectric substrate, and a second dielectric disposed on the other surface of the first dielectric substrate.
And a substrate between the first dielectric substrate and the second dielectric substrate.
A plurality of first patch antennas formed and connected to each of the plurality of first patch antennas
A first transmission line and the first patch antenna of the second dielectric substrate are formed.
The first plurality is disposed and formed on a surface opposite to the formed surface.
A plurality of second patches having a size different from that of the second patch antenna.
And Chiantena, connected to each of the plurality of second patch antenna
A second transmission line, and a first transmission line provided at a position facing the first dielectric substrate.
And a primary radiating antenna facing the second dielectric substrate.
A second primary radiation antenna provided at a position
A planar antenna characterized in that: