JP2003101325A - Multi-frequency antenna and diversity antenna constituted thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-frequency antenna that can be housed in the enclosure of radio equipment so as to improve the portability and operability of the antenna, is not deteriorated in antenna gain even when the antenna is brought nearer to the head of a person, is wide in band width, and can cover a plurality of frequency bands. SOLUTION: This multi-frequency antenna is provided with plate-shaped antenna elements 3a and 3b which are fitted to a plurality of surfaces of a polyhedron cubic molded resin 10 mounted on the radio equipment substrate 1 of portable radio equipment and having a specific dielectric constant and divided by a reactance component 20. Consequently, the frequency band of each antenna element becomes wider and the antenna can resonate in a plurality of frequency bands. In addition, the gain of the antenna can be improved at talking time by enlarging crossing polarized components in a free space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-frequency antenna for a portable wireless device, and more particularly to a multi-frequency antenna that can be used in a plurality of frequency bands built in a housing of the portable wireless device and a diversity antenna configured by the multi-frequency antenna.

[0002]

2. Description of the Related Art Conventionally, as an antenna used in a portable wireless device, for example, an antenna disclosed in Japanese Patent Laid-Open No. 6-232625 and shown in FIG. 33 has been generally used. That is, in FIG. 33, the conventional antenna includes the radio base plate 1 and the monopole antenna 100. Further, x, y, and z shown in FIG. 33 represent coordinate axes. As described above, the conventional monopole antenna is usually projected to the outside of the portable wireless device.

[0003]

However, the conventional antenna configuration as described above has a problem that portability and operability are poor because the antenna is projected to the outside of the housing. Further, the conventional antenna has a problem that the bandwidth is narrow and transmission / reception cannot be performed in a plurality of frequency bands. Further, the conventional antenna has a problem that the antenna gain deteriorates when the antenna approaches the human head.

The present invention has been made in order to solve the above-mentioned conventional problems, and improves the portability and operability by incorporating the antenna in the radio housing, and the antenna is close to the human head. Provided is a multi-frequency antenna having a wide bandwidth and capable of covering a plurality of frequency bands without deterioration of antenna gain.

[0005]

A multi-frequency antenna according to the present invention is a plate-shaped antenna element which is mounted on a plurality of surfaces of a multi-sided three-dimensional resin mold mounted on a substrate of a portable radio and divided by reactance components. Is provided. With this configuration, it is possible to realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands, and further, the cross polarization component in the free space is increased to improve the call gain. Can be improved.

The multi-frequency antenna according to the present invention has a structure in which helical antenna elements, which are mounted on a plurality of surfaces of a multi-faced three-dimensional resin mold mounted on the upper portion of a substrate of a portable radio, are divided by reactance components. is doing. With this configuration, it is possible to realize a multi-frequency antenna in which each frequency band of the antenna element is wide and resonance is easy in a plurality of frequency bands, and further, the cross polarization component in the free space is increased, The call gain can be improved.

The multi-frequency antenna according to the present invention has a structure in which it is mounted on a plurality of surfaces of a multi-faced three-dimensional resin mold mounted on the upper part of the substrate of a portable radio device and has a meandering antenna element divided by reactance components. is doing. With this configuration, it is possible to realize a multi-frequency antenna in which each of the antenna elements has a wider frequency band and resonates in a plurality of frequency bands, and further, the cross polarization component in the free space is increased to increase the gain during communication. Can be improved.

The multi-frequency antenna according to the present invention comprises a meander-shaped antenna element which is mounted on a plurality of surfaces of a multi-sided three-dimensional resin mold mounted on the upper portion of a board of a portable radio and is divided by a fixed inductance. Have With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little frequency variation, and resonance occurs in a plurality of frequency bands.
Further, the cross polarization component in the free space can be increased to improve the gain during a call.

A multi-frequency antenna according to the present invention has a structure in which the divided plate-shaped antenna element is resonated by a distributed constant and M coupling. With this configuration, it is possible to easily realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands. Further, by increasing the cross polarization component in free space, The gain can be improved.

In the multi-frequency antenna according to the present invention, the helical antenna element is used as a reactance component.
It has a configuration of dividing with a fixed inductance. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little frequency variation, and resonance easily occurs in multiple frequency bands. Furthermore, cross polarization in free space is possible. The component can be increased to improve the gain during a call.

In the multi-frequency antenna according to the present invention, the meandering antenna element is used as a reactance component.
It has a configuration of dividing with a fixed inductance. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wider, there is less frequency variation, and resonance occurs in multiple frequency bands, and the cross polarization component in free space is increased. Then, the gain during a call can be improved.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that operates as a reflector is formed on the upper part of the radio device substrate on the human body by forming a conductor pattern having an open surface. With this configuration, it is possible to realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands. Further, the parasitic element directs the directivity in the direction opposite to the human body and directivity control is performed. It is possible to realize a multi-frequency antenna capable of

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that operates as a reflector is formed by forming a conductor pattern having an open surface on the upper portion of the radio substrate which is opposite to the human body. is doing. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in multiple frequency bands. Furthermore, the parasitic element directs the direction opposite to the human body. It is possible to realize a multi-frequency antenna that can be turned to the right and can control directivity.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that acts as a reflector is formed on the upper portion of the radio device substrate on the human body side by forming a conductor pattern with one end short-circuited. There is. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in multiple frequency bands. Furthermore, the parasitic element directs the direction opposite to the human body. It is possible to realize a multi-frequency antenna that can be turned to the right and can control directivity.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length which operates as a reflector is formed on the upper part of the radio device substrate opposite to the human body side by forming a conductor pattern with one end short-circuited. have. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in multiple frequency bands. Furthermore, the parasitic element has a directivity opposite to that of the human body. It is possible to realize a multi-frequency antenna in which the directivity can be controlled so as to face the direction.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that acts as a reflector is formed by forming a conductor pattern having an open surface on the upper part of the radio body substrate on the human body side. With this configuration, the frequency band of each antenna element is wide, and it is possible to easily realize a multi-frequency antenna that resonates in a plurality of frequency bands. Furthermore, the parasitic element directs the direction opposite to the human body,
A multi-frequency antenna capable of directivity control can be realized.

The multi-frequency antenna according to the present invention has a structure in which a conductor pattern having an open entire surface is formed on the upper portion of the wireless device substrate on the side opposite to the human body side, and a parasitic element having a length that operates as a reflector is provided. is doing. With this configuration, it is possible to easily realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body. It is possible to realize a multi-frequency antenna capable of controlling the sex.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that operates as a reflector is formed on the upper part of the radio body substrate on the human body side by forming a conductor pattern with one end short-circuited. There is. With this configuration, the frequency band of each antenna element is wide, and it is possible to easily realize a multi-frequency antenna that resonates in a plurality of frequency bands.
Furthermore, the parasitic element directs the directivity in the direction opposite to the human body, and a multi-frequency antenna capable of directivity control can be realized.

The multi-frequency antenna according to the present invention has a structure in which a parasitic element having a length that operates as a reflector is formed on the upper part of the radio substrate opposite to the human body by forming a conductor pattern with one end short-circuited. have. With this configuration, it is possible to easily realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body. It is possible to realize a multi-frequency antenna capable of controlling the sex.

The multi-frequency antenna according to the present invention has a length that operates as an impedance matching element with respect to a specific surface of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-sided three-dimensional resin mold. As a parasitic element, a plate-shaped conductor whose both ends are open is arranged. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in multiple frequency bands. Furthermore, a multi-frequency antenna capable of directivity control is realized. can do.

The multi-frequency antenna according to the present invention has a length that operates as an impedance matching element with respect to a plurality of surfaces of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-sided three-dimensional resin mold. As a parasitic element, a plate-shaped conductor whose both ends are open is arranged. With this configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in multiple frequency bands. Furthermore, a multi-frequency antenna capable of directivity control is realized. can do.

The multi-frequency antenna according to the present invention has a length that operates as an impedance matching element with respect to a specific surface of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-sided three-dimensional resin mold. As a parasitic element, a plate-shaped conductor whose both ends are open is arranged. With this configuration, it is possible to easily realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands, and further it is possible to realize a multi-frequency antenna capable of directivity control. .

In the multi-frequency antenna according to the present invention, a long-length antenna that operates as an impedance matching element with respect to a plurality of surfaces of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-faced three-dimensional resin mold. As a parasitic element, a plate-shaped conductor whose both ends are open is arranged. With this configuration, it is possible to easily realize a multi-frequency antenna in which each antenna element has a wide frequency band and resonates in a plurality of frequency bands, and further it is possible to realize a multi-frequency antenna capable of directivity control. .

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First to thirtieth embodiments of the present invention will be described in detail below with reference to the accompanying drawings. (First Embodiment) First, a multi-frequency antenna according to the first embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, plate-shaped antenna elements 3a and 3b, and a six-sided three-dimensional resin mold 10. The antenna feeding unit 4 and the reactance component 20 that divides the plate-shaped antenna element are included. The multi-frequency antenna according to the present embodiment has plate-shaped antenna elements 3a and 3a.
b is divided by a reactance component 20, and is formed on a plurality of surfaces of, for example, a six-dimensional three-dimensional resin mold 10 having a specific dielectric constant, and is further mounted on the upper portion of the board of the portable wireless device.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be realized, and further, the cross polarization component in the free space can be increased to improve the call gain.

(Second Embodiment) Next, a multi-frequency antenna according to a second embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment is provided with a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, an antenna feeding unit 4, and helical antenna elements 5a and 5b.
It is configured to have a three-dimensional three-dimensional resin mold 10 and a reactance component 20 that divides the helical antenna elements 5a and 5b. The multi-frequency antenna according to the present embodiment has a structure in which the helical antenna elements 5a and 5b are divided by the reactance component 20 and is composed of, for example, a plurality of 6-sided three-dimensional resin molds 10 having a specific dielectric constant. It is configured to be mounted on the upper part of the board of the portable wireless device.

The multi-frequency antenna according to this embodiment is
With this configuration, each frequency band of the antenna element is wide and a plurality of (in the present embodiment, 2
It is possible to realize a multi-frequency antenna that easily resonates in the frequency band, and further increase the cross polarization component in free space to improve the gain during a call.

(Third Embodiment) Next, a multi-frequency antenna according to a third embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment has a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, an antenna feeding part 4, and meandering antenna elements 6a and 6b.
It is configured to have a three-dimensional three-dimensional resin mold 10 and a reactance component 20 that divides the meandering antenna element. The multi-frequency antenna according to the present embodiment has a structure in which meander-shaped antenna elements 6a and 6b are divided by a reactance component 20, and for example, a six-sided three-dimensional resin mold 10 having a specific dielectric constant has a plurality of surfaces, It is configured to be mounted on the upper part of the board of the portable wireless device.

The multi-frequency antenna according to this embodiment is
With this configuration, it is possible to realize a multi-frequency antenna in which each antenna element has a wider frequency band and resonates in a plurality of (two in the present embodiment) frequency bands, and further, in a free space. It is possible to increase the cross-polarization component in and improve the call gain.

(Fourth Embodiment) Next, a multi-frequency antenna according to a fourth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, plate-shaped antenna elements 3a and 3b, an antenna feeding unit 4, and 6 faces. The three-dimensional resin mold 10 and the fixed inductance 30 that divides the plate-shaped antenna element. The multi-frequency antenna according to the present embodiment has a structure in which plate-shaped antenna elements 3a and 3b are divided by a fixed inductance 30 and inserted or caulked in, for example, a six-dimensional three-dimensional resin mold 10 having a specific dielectric constant, In addition, the plate-shaped antenna elements 3a and 3b are composed of a plurality of surfaces to have a structure in which the length and width can be set arbitrarily, and are further mounted on the upper part of the board of the portable wireless device.

The multi-frequency antenna according to this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Further, the cross polarization component in the free space can be increased to improve the gain during a call.

Next, referring to the VSWR (voltage standing wave ratio) characteristic diagram shown in FIG. 5, 500 MHz to 2 measured using the multi-frequency antenna according to the fourth embodiment of the present invention.
An example of actual measurement of VSWR characteristics at 500 MHz will be described. As can be seen from FIG. 5, when VSWR is set to 3 or less, a resonance frequency of about 800 MHz to 12000 MHz and a resonance frequency of about 1700 MHz to 2500 MHz appear, and a multi-frequency antenna that resonates in two or more bands (frequency). It turns out that can be realized.

Further, FIG. 6 shows a case where the multi-frequency antenna according to the fourth embodiment of the present invention is used, and the size of the radio board is 40 (width) × 125 (length) mm, and the volume of the antenna module is 8. (Horizontal) x 20 (vertical) x 7 (height) m
An example of directivity at 2170 MHz in the case of m is shown. According to this directivity example, it can be seen that the multi-frequency antenna in the present embodiment has a balanced directivity.

(Fifth Embodiment) Next, a multi-frequency antenna according to a fifth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, plate-shaped antenna elements 3a and 3b, an antenna feeding unit 4, and 6 faces. The three-dimensional resin mold 10 of FIG. The multi-frequency antenna according to the present embodiment is a plate-shaped antenna element 3
a and 3b are made to resonate by the capacitance between the gaps and M coupling, and are inserted or caulked in, for example, a 6-sided three-dimensional resin mold 10 having a specific permittivity, and plate-shaped antenna elements 3a and 3b are provided on a plurality of sides. And the structure in which the length and width can be set arbitrarily, and is further mounted on the upper part of the substrate of the portable wireless device.

The multi-frequency antenna in this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be easily realized, and further, the cross polarization component in the free space can be increased to improve the call gain.

(Sixth Embodiment) Next, a multifrequency antenna according to a sixth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to a human body, helical antenna elements 5a and 5b, and a six-sided three-dimensional resin mold 10. , And a fixed inductance 30 that divides the helical antenna element. In the multi-frequency antenna according to the present embodiment, the helical antenna elements 5a and 5b are divided by a fixed inductance 30, and for example, the three-dimensional resin mold 10 having six surfaces has a specific dielectric constant. And a structure in which the width can be set arbitrarily, and is further configured to be mounted on the upper portion of the substrate of the portable wireless device.

The multi-frequency antenna according to this embodiment is
With this configuration, a multi-frequency antenna in which each frequency band of the antenna element is wide, there is little frequency variation, and resonance is easy in a plurality of (two in this embodiment) frequency bands is realized. Can, in addition,
By increasing the cross polarization component in free space, it is possible to improve the gain during a call.

(Seventh Embodiment) Next, a multi-frequency antenna according to a seventh embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, meander antenna elements 5a and 5b, and a six-sided three-dimensional resin mold 10. , And a fixed inductance 30 that divides the meandering antenna element. In the multi-frequency antenna according to the present embodiment, meander-shaped antenna elements 6a and 6b are divided by a fixed inductance 30, and the three-dimensional resin mold 10 having a specific permittivity is composed of a plurality of surfaces and has a length of And a structure in which the width can be set arbitrarily, and is further configured to be mounted on the upper portion of the substrate of the portable wireless device.

The multi-frequency antenna according to this embodiment is
By configuring in this way, the frequency band of each of the antenna elements is wider, there is less frequency variation,
In addition, it is possible to realize a multi-frequency antenna that resonates in a plurality of (two in the present embodiment) frequency bands, and further, to increase the cross polarization component in free space and improve the call gain. .

(Eighth Embodiment) Next, a multi-frequency antenna according to an eighth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment has a wireless device substrate 1, a ground plane 2b on the wireless device substrate on the human body side, the plate-shaped antennas 3a and 3b described in the fourth embodiment, and the entire surface opened. And a conductor pattern 7 disposed on the printed circuit board. In addition to the plate-shaped antenna element described in the fourth embodiment, the multi-frequency antenna according to the present embodiment has a long antenna that operates as a reflector on the upper part of the wireless device substrate on the human body side while the wireless device is carried. The passive element is formed by forming the conductor pattern 7 having an open surface.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
It is possible to realize a multi-frequency antenna that resonates in the frequency band. Furthermore, the parasitic element directs the directivity in the direction opposite to the human body on the opposite side of the antenna, so the antenna gain does not deteriorate and directivity control is possible. It is possible to realize various multi-frequency antennas.

(Ninth Embodiment) Next, a multifrequency antenna according to a ninth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, and plate-shaped antennas 3a and 3b according to the fourth embodiment. It is configured to have a conductor pattern 7 on a printed circuit board whose entire surface is open. In addition to the plate-shaped antenna element described in the fourth embodiment, the multi-frequency antenna according to the present embodiment is provided with a reflector on the upper surface of the substrate of the radio opposite to the human body when the radio is carried. A parasitic element having a length that operates as described above is formed by forming a conductor pattern 7 whose entire surface is open.

The multi-frequency antenna according to this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Further, since the directivity is directed in the direction opposite to the human body by the parasitic element, the antenna gain is not deteriorated, and a multi-frequency antenna capable of directivity control can be realized.

(Tenth Embodiment) Next, a multi-frequency antenna according to a tenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2b on the radio substrate on the human body side, plate-shaped antennas 3a and 3b described in the fourth embodiment, and one end thereof. And a conductor pattern 8 on the printed circuit board which is short-circuited. In addition to the plate-shaped antenna element described in the fourth embodiment, the multi-frequency antenna according to the present embodiment has a long antenna that operates as a reflector on the upper part of the wireless device substrate on the human body side while the wireless device is carried. As a parasitic element, a conductor pattern 8 having one end short-circuited is formed.

The multi-frequency antenna according to this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Further, since the directivity is directed in the direction opposite to the human body by the parasitic element, the antenna gain is not deteriorated, and a multi-frequency antenna capable of directivity control can be realized.

(Eleventh Embodiment) Next, a multi-frequency antenna according to an eleventh embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, and plate-shaped antennas 3a and 3b according to the fourth embodiment.
Conductor pattern 8 on a printed circuit board with one end short-circuited
And is configured. In addition to the plate-shaped antenna element described in the fourth embodiment, the multi-frequency antenna according to the present embodiment has a reflector as a reflector on the upper surface of the radio device substrate opposite to the human body when the radio device is carried. As a parasitic element having an operating length, a conductor pattern 8 having one end short-circuited is formed.

The multi-frequency antenna according to this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Further, since the directivity is directed in the direction opposite to the human body by the parasitic element, the antenna gain is not deteriorated, and a multi-frequency antenna capable of directivity control can be realized.

(Twelfth Embodiment) Next, a multi-frequency antenna according to a twelfth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment has a radio substrate 1, a ground plane 2b on the radio substrate on the human body side, the plate-shaped antennas 3a and 3b described in the fifth embodiment, and the entire surface thereof is open. And the conductor pattern 7 on the printed circuit board. In addition to the plate-shaped antenna element described in the fifth embodiment, the multi-frequency antenna according to the present embodiment is a long antenna that operates as a reflector on the upper part of the wireless device substrate on the human body side while the wireless device is carried. The passive element is formed by forming the conductor pattern 7 having an open surface.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be easily realized.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body, so the antenna gain does not deteriorate and a multi-frequency antenna that can control the directivity is used. Can be realized.

(Thirteenth Embodiment) Next, a multi-frequency antenna according to a thirteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, and plate-shaped antennas 3a and 3b according to the fifth embodiment.
It is configured to have a conductor pattern 7 on a printed circuit board whose entire surface is open. In addition to the plate-shaped antenna element described in the fifth embodiment, the multi-frequency antenna according to the present embodiment is provided with a reflector on the upper surface of the substrate of the radio opposite to the human body when the radio is carried. A parasitic element having a length that operates as described above is formed by forming a conductor pattern 7 whose entire surface is open.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be easily realized.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body, so the antenna gain does not deteriorate and a multi-frequency antenna that can control the directivity is used. Can be realized.

(Fourteenth Embodiment) Next, a multi-frequency antenna according to a fourteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a wireless device substrate 1, a ground plane 2b on the wireless device substrate on the human body side, plate-shaped antennas 3a and 3b described in the fifth embodiment, and one end thereof. And a conductor pattern 8 on the printed circuit board which is short-circuited. In addition to the plate-shaped antenna element described in the fifth embodiment, the multi-frequency antenna according to the present embodiment is a long antenna that operates as a reflector on the upper part of the wireless device substrate on the human body side while the wireless device is carried. As a parasitic element, a conductor pattern 8 having one end short-circuited is formed.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be easily realized.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body, so the antenna gain does not deteriorate and a multi-frequency antenna that can control the directivity is used. Can be realized.

(Fifteenth Embodiment) Next, a multi-frequency antenna according to a fifteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, and plate-shaped antennas 3a and 3b according to the fifth embodiment.
Conductor pattern 8 on a printed circuit board with one end short-circuited
And is configured. In addition to the plate-shaped antenna element described in the fifth embodiment, the multi-frequency antenna according to the present embodiment is provided with a reflector as a reflector on the upper surface of the radio device substrate opposite to the human body when the radio device is carried. As a parasitic element having an operating length, a conductor pattern 8 having one end short-circuited is formed.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
A multi-frequency antenna that resonates in the frequency band can be easily realized.Furthermore, the parasitic element directs the directivity in the direction opposite to the human body, so the antenna gain does not deteriorate and a multi-frequency antenna that can control the directivity is used. Can be realized.

(Sixteenth Embodiment) Next, a multi-frequency antenna according to a sixteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes the radio substrate 1, the ground plane 2a on the radio substrate opposite to the human body, the plate-shaped antenna element 44 described in the fourth embodiment, It has an impedance matching element 9a as a power feeding element. The multi-frequency antenna in this embodiment is
An impedance matching element 9a made by vapor-depositing metal on a plate-shaped conductor or resin is provided on a specific surface of the antenna module configured by the plate-shaped antenna element according to the fourth embodiment. They are arranged to form a multi-frequency antenna.

The multi-frequency antenna according to this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Furthermore, it is possible to realize a multi-frequency antenna capable of controlling directivity.

(Seventeenth Embodiment) Next, a multi-frequency antenna according to a seventeenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes the radio substrate 1, the ground plane 2a on the radio substrate opposite to the human body, the plate-shaped antenna element 44 described in the fourth embodiment, Impedance matching elements 9a, 9b, 9 as power feeding elements
and c. The multi-frequency antenna according to the present embodiment is a plate-shaped conductor whose both ends are open with respect to a plurality of faces of an antenna module configured by the plate-shaped antenna element described in the fourth embodiment, or metal is vapor-deposited on resin. The multi-frequency antenna is configured by arranging the impedance matching elements 9a, 9b, and 9c described above.

The multi-frequency antenna in this embodiment is
With such a configuration, it is possible to realize a multi-frequency antenna in which the frequency band of each antenna element is wide, there is little variation in frequency, and resonance occurs in a plurality of (two in this embodiment) frequency bands. Furthermore, it is possible to realize a multi-frequency antenna capable of controlling directivity.

(Eighteenth Embodiment) Next, a multi-frequency antenna according to an eighteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, a plate-shaped antenna element 45 described in the fifth embodiment, and an impedance. And a matching element 9a. The multi-frequency antenna according to the present embodiment is made of a plate-shaped conductor or resin whose both ends are open with respect to a certain surface of the antenna module including the plate-shaped antenna element described in the fifth embodiment. A multi-frequency antenna is constructed by arranging an impedance matching element 9a formed by vapor deposition of metal.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
It is possible to easily realize a multi-frequency antenna that resonates in the frequency band, and further it is possible to realize a multi-frequency antenna that can control directivity.

(Nineteenth Embodiment) Next, a multi-frequency antenna according to a nineteenth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The multi-frequency antenna according to the present embodiment includes a radio substrate 1, a ground plane 2a on the radio substrate opposite to the human body, a plate-shaped antenna element 45 described in the fifth embodiment, and an impedance. It is configured to have matching elements 9a, 9b, 9c. The multi-frequency antenna according to the present embodiment is a plate-shaped conductor whose both ends are open with respect to a plurality of faces of an antenna module configured by the plate-shaped antenna element described in the fifth embodiment, or metal vapor-deposited on resin. The multi-frequency antenna is configured by arranging the impedance matching elements 9a, 9b, and 9c described above.

The multi-frequency antenna according to this embodiment is
With this configuration, the frequency band of each antenna element is wide and a plurality of antenna elements (two in this embodiment) are provided.
It is possible to easily realize a multi-frequency antenna that resonates in the frequency band, and further it is possible to realize a multi-frequency antenna that can control directivity.

(Twentieth Embodiment) Next, a diversity antenna according to a twentieth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 41 described in the first embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element described in the first embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and a plurality of antenna elements are provided. (Two in this embodiment) A multi-frequency antenna that resonates in the frequency band and has the same effect as that of the first embodiment that realizes a multi-frequency antenna that further improves the call gain is realized as a diversity antenna. can do.

(Twenty-first Embodiment) Next, a diversity antenna according to a twenty-first embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 42 described in the second embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element described in the second embodiment as an antenna element that constitutes the diversity antenna, so that each frequency band of the antenna element is wide and a plurality of antenna elements are provided. With the multi-frequency antenna having the same effects as those in the second embodiment, which realizes the multi-frequency antenna that resonates in the frequency bands (two in the present embodiment) and facilitates the improvement of the call gain, A diversity antenna can be realized.

(Twenty-second Embodiment) Next, a diversity antenna according to a twenty-second embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 43 described in the third embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the third embodiment as an antenna element forming the diversity antenna, so that each frequency band of the antenna element is further wide, and A plurality of (2 in this embodiment)
(3) A diversity antenna can be realized by a multi-frequency antenna having the same effects as those of the third embodiment that realizes a multi-frequency antenna that resonates in the frequency band and further improves the call gain.

(Twenty-third Embodiment) Next, a diversity antenna according to a twenty-third embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 44 described in the fourth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element described in the fourth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and the frequency variation. And a multi-frequency antenna having a similar effect to that of the fourth embodiment, which realizes a multi-frequency antenna that resonates in a plurality of (two in the present embodiment) frequency bands and further improves speech gain. Thereby, a diversity antenna can be realized.

(Twenty-fourth Embodiment) Next, a diversity antenna according to a twenty-fourth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 45 described in the fifth embodiment. The diversity antenna in the present embodiment is configured by using the antenna element described in the fifth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and a plurality of antenna elements are provided. (Two in this embodiment) A multi-frequency antenna having a similar effect to that of the fifth embodiment for easily realizing a multi-frequency antenna that resonates in a frequency band and further improves the call gain is provided. Can be realized.

(Twenty-fifth Embodiment) Next, a diversity antenna according to a twenty-fifth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 46 described in the sixth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the sixth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and An effect similar to that of the sixth embodiment, which realizes a multi-frequency antenna that has little variation, resonates in a plurality of (two in the present embodiment) frequency bands, and easily improves the call gain, can be obtained. A diversity antenna can be realized by using the multi-frequency antenna.

(Twenty-sixth Embodiment) Next, a diversity antenna according to a twenty-sixth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 47 described in the seventh embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the seventh embodiment as an antenna element forming the diversity antenna, so that each frequency band of the antenna element is wider and Is small, and resonates in a plurality of (two in the present embodiment) frequency bands,
Further, the diversity antenna can be realized by the multi-frequency antenna having the same effect as that of the seventh embodiment for realizing the multi-frequency antenna for improving the call gain.

(Twenty-Seventh Embodiment) Next, a diversity antenna according to a twenty-seventh embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 48 described in the sixteenth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the sixteenth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and the frequency variation. A multi-frequency antenna having a small number and resonating in a plurality of (two in the present embodiment) frequency bands and realizing a multi-frequency antenna capable of directivity control and having the same effect as that in the sixteenth embodiment Thereby, a diversity antenna can be realized.

(Twenty-eighth Embodiment) Next, a diversity antenna according to a twenty-eighth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 49 described in the seventeenth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the seventeenth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and the frequency variation. First, to realize a multi-frequency antenna that has a small number of antennas, resonates in a plurality of (two in the present embodiment) frequency bands, and is capable of directivity control.
A diversity antenna can be realized by the multi-frequency antenna having the same effect as that of the seventh embodiment.

(Twenty-ninth Embodiment) Next, a diversity antenna according to a twenty-ninth embodiment of the present invention will be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And the antenna element 50 described in the eighteenth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element according to the eighteenth embodiment as an antenna element that constitutes the diversity antenna, so that the frequency band of each antenna element is wide and a plurality of antenna elements are provided. (Two in this embodiment)
A diversity antenna can be realized by a multi-frequency antenna having the same effects as those of the eighteenth embodiment which resonates in the frequency band and easily realizes a directivity controllable multi-frequency antenna.

(30th Embodiment) A diversity antenna according to a 30th embodiment of the present invention will now be described with reference to the schematic perspective view of FIG. The diversity antenna according to the present embodiment is the radio base plate 1
And an antenna element 51 described in the nineteenth embodiment. The diversity antenna according to the present embodiment is configured by using the antenna element described in the nineteenth embodiment as an antenna element forming the diversity antenna, so that the frequency band of each antenna element is wide and a plurality of antenna elements are provided. (Two in this embodiment)
A diversity antenna can be realized by a multi-frequency antenna that resonates in the frequency band and has the same effect as that of the nineteenth embodiment that easily realizes the directivity controllable multi-frequency antenna.

[0075]

The multi-frequency antenna and diversity antenna according to the present invention are configured as described above, and in particular,
The antenna is built into the radio housing to improve portability and operability, and directivity is controlled, so that the antenna gain does not deteriorate even when the antenna is placed close to the human head, and the antenna is divided by reactance components. However, by mounting on a plurality of surfaces of a multi-faced three-dimensional resin mold, it is possible to use a wide bandwidth and a plurality of frequency bands.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a first embodiment of the present invention,

FIG. 2 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a second embodiment of the present invention,

FIG. 3 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a third embodiment of the present invention,

FIG. 4 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a fourth embodiment of the present invention,

5 is a VSWR characteristic diagram showing a VSWR characteristic of the multi-frequency antenna shown in FIG.

FIG. 6A is a diagram showing directivity in the xy plane of the multi-frequency antenna according to the embodiment of the present invention; and FIG. 6B is a directivity in the yz plane of the multi-frequency antenna according to the embodiment of the present invention. And (C) a diagram showing directivity in the xz plane of the multi-frequency antenna according to the embodiment of the present invention,

FIG. 7 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a fifth embodiment of the present invention,

FIG. 8 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a sixth embodiment of the present invention,

FIG. 9 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a seventh embodiment of the present invention,

FIG. 10 is a schematic perspective view showing a configuration of a multi-frequency antenna according to an eighth embodiment of the present invention,

FIG. 11 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a ninth embodiment of the present invention,

FIG. 12 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a tenth embodiment of the present invention,

FIG. 13 is a schematic perspective view showing a configuration of a multi-frequency antenna according to an eleventh embodiment of the present invention,

FIG. 14 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twelfth embodiment of the present invention,

FIG. 15 is a schematic perspective view showing the structure of a multi-frequency antenna according to a thirteenth embodiment of the present invention,

FIG. 16 is a schematic perspective view showing the structure of a multi-frequency antenna according to a fourteenth embodiment of the present invention,

FIG. 17 is a schematic perspective view showing a configuration of a multi-frequency antenna according to a fifteenth embodiment of the present invention,

FIG. 18 is a schematic perspective view showing the structure of a multi-frequency antenna according to a sixteenth embodiment of the present invention,

FIG. 19 is a schematic perspective view showing the structure of a multi-frequency antenna according to a seventeenth embodiment of the present invention,

FIG. 20 is a schematic perspective view showing the structure of a multi-frequency antenna according to the eighteenth embodiment of the present invention,

FIG. 21 is a schematic perspective view showing the structure of a multi-frequency antenna according to a nineteenth embodiment of the present invention,

FIG. 22 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twentieth embodiment of the present invention,

FIG. 23 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-first embodiment of the present invention,

FIG. 24 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-second embodiment of the present invention,

FIG. 25 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-third embodiment of the present invention,

FIG. 26 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-fourth embodiment of the present invention,

FIG. 27 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-fifth embodiment of the present invention,

FIG. 28 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty sixth embodiment of the present invention,

FIG. 29 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-seventh embodiment of the present invention,

FIG. 30 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty-eighth embodiment of the present invention,

FIG. 31 is a schematic perspective view showing the structure of a multi-frequency antenna according to a twenty ninth embodiment of the present invention,

FIG. 32 is a schematic perspective view showing the structure of a multi-frequency antenna according to a thirtieth embodiment of the present invention,

FIG. 33 is a diagram showing a configuration of an antenna of a conventional example.

[Explanation of symbols]

1 Radio board 2a Ground plane 2b opposite to the human body Ground plane 3a on the human body side Plate-shaped antenna element 3b on the feeding point side Plate-shaped antenna element 4 on the opposite side to the feeding point Antenna feeding point 5a Feeding point side Helical antenna element 5b Helical antenna element 6a on the opposite side to the feeding point Meander antenna element 6b on the feeding point side Meander antenna element 7 on the opposite side to the feeding point Upper conductor pattern 8 Conductor pattern on printed circuit board with one end short-circuited 9a Impedance matching element 9b arranged on left side of antenna Impedance matching element 9c arranged on right side of antenna Impedance arranged on top of antenna Matching element 10 Resin mold 20 for fixing antenna having specific dielectric constant 20 Reactor Component 30 Fixed Inductance 41 Antenna Module of First Embodiment 42 Antenna Module of Second Embodiment 43 Antenna Module of Third Embodiment 44 Antenna Module of Fourth Embodiment 45 Fifth Implementation Antenna module 46 of the sixth embodiment antenna module 47 of the sixth embodiment antenna module 48 of the seventh embodiment antenna module 49 of the sixteenth embodiment antenna module 50 of the seventeenth embodiment Antenna module 51 in the form of 19th Embodiment Antenna module 100 in the 19th embodiment Monopole antenna

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04M 1/02 H04M 1/02 C (72) Inventor Hideo Ito 4-3 Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa No. 1 In Matsushita Communication Industrial Co., Ltd. (72) Inventor Hideki Watanabe 4-3 Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa F-Term (Reference) 5J021 AA02 AA11 AB06 DB07 GA08 HA06 HA10 JA03 JA07 JA08 5J046 AA04 AA07 AB10 AB13 PA04 PA07 TA03 5J047 AA04 AA07 AB10 AB13 FD01 5K023 AA07 BB06 LL01 LL05

Claims (20)

[Claims] 1. A multi-frequency antenna comprising a plate-shaped antenna element which is mounted on a plurality of surfaces of a multi-sided three-dimensional resin mold mounted on an upper portion of a substrate of a portable wireless device and which is divided by a reactance component. 2. A multi-frequency antenna comprising a helical antenna element mounted on a plurality of surfaces of a multi-faced three-dimensional resin mold mounted on the upper part of a substrate of a portable wireless device and divided by reactance components. 3. A multi-frequency antenna, comprising a meander-shaped antenna element mounted on a plurality of surfaces of a multi-sided three-dimensional resin mold mounted on the upper part of a substrate of a portable radio device and divided by a reactance component. 4. A multi-frequency antenna comprising a meander-shaped antenna element mounted on a plurality of surfaces of a multi-sided three-dimensional resin mold mounted on the upper part of a board of a portable wireless device and divided by a fixed inductance. 5. The multifrequency antenna according to claim 1, wherein the divided plate-shaped antenna element is resonated by a distributed constant and M coupling. 6. The multi-frequency antenna according to claim 2, wherein the helical antenna element is divided by a fixed inductance as a reactance component. 7. The multifrequency antenna according to claim 3, wherein the meandering antenna element is divided by a fixed inductance as a reactance component. 8. The multi-frequency antenna according to claim 4, further comprising a parasitic element having a length which acts as a reflector by forming a conductor pattern whose entire surface is open, on the upper part of the radio body substrate on the human body side. 9. A parasitic element having a length that operates as a reflector by forming a conductor pattern having an open surface is provided on an upper portion of a wireless device substrate opposite to a human body side.
The described multi-frequency antenna. 10. The multi-frequency device according to claim 4, further comprising a parasitic element having a length which acts as a reflector by forming a conductor pattern having one end short-circuited, on an upper portion of a radio body substrate on the human body side. antenna. 11. An upper part of a wireless device substrate opposite to a human body,
The multi-frequency antenna according to claim 4, further comprising a parasitic element having a length that forms a conductor pattern with one end short-circuited and operates as a reflector. 12. A multi-frequency antenna according to claim 5, further comprising a parasitic element having a length which operates as a reflector by forming a conductor pattern whose entire surface is open on the upper part of the radio body substrate on the human body side. 13. A wireless device substrate on the side opposite to the human body,
6. The multi-frequency antenna according to claim 5, further comprising a parasitic element having a length that operates as a reflector by forming a conductor pattern having an open surface. 14. A multi-frequency device according to claim 5, further comprising: a parasitic element having a length which acts as a reflector by forming a conductor pattern of which one end is short-circuited, on the upper portion of the radio body substrate on the human body side. antenna. 15. An upper part of a radio device substrate opposite to a human body,
The multi-frequency antenna according to claim 5, further comprising a parasitic element having a length that forms a conductor pattern with one end short-circuited and operates as a reflector. 16. A parasitic element having a length that operates as an impedance matching element with respect to a specific surface of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-faced three-dimensional resin mold. The multi-frequency antenna according to claim 4, wherein a plate-shaped conductor having both ends opened is arranged. 17. A parasitic element having a length that operates as an impedance matching element with respect to a plurality of surfaces of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-faced three-dimensional resin mold. The multi-frequency antenna according to claim 4, wherein a plate-shaped conductor having both ends opened is arranged. 18. A parasitic element having a length that operates as an impedance matching element with respect to a specific surface of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-faced three-dimensional resin mold. The multi-frequency antenna according to claim 5, further comprising a plate-shaped conductor having both ends open. 19. A parasitic element having a length that operates as an impedance matching element with respect to a plurality of surfaces of an antenna module composed of the plate-shaped antenna elements mounted on a plurality of surfaces of the multi-faced three-dimensional resin mold. The multi-frequency antenna according to claim 5, further comprising a plate-shaped conductor having both ends open. 20. A diversity antenna comprising the multi-frequency antenna according to claim 1 as a diversity antenna.