CA2281539A1 - Antenna - Google Patents
Antenna Download PDFInfo
- Publication number
- CA2281539A1 CA2281539A1 CA002281539A CA2281539A CA2281539A1 CA 2281539 A1 CA2281539 A1 CA 2281539A1 CA 002281539 A CA002281539 A CA 002281539A CA 2281539 A CA2281539 A CA 2281539A CA 2281539 A1 CA2281539 A1 CA 2281539A1
- Authority
- CA
- Canada
- Prior art keywords
- antenna
- electromagnetic waves
- antenna body
- detecting electromagnetic
- resonance circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/06—Means for the lighting or illuminating of antennas, e.g. for purpose of warning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/088—Quick-releasable antenna elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
An antenna having a high receiving sensitivity and capable of detecting the direction of a radio wave transmission source and discriminating mounted equipment, comprising an antenna body, a head unit removably provided on the upper end of the antenna body and a support unit inserted into and supporting the antenna body, wherein the head unit has a resonance circuit including a coil, a rectifying diode and a light emitting diode or a discriminator for discriminating the equipment from others.
Description
SPECIFICATION
DEVICE FOR DETECTING ELECTROMAGNETIC G~IAVES
Field of Art The present invention relates to an antenna or a device for detecting electromagnetic waves used to be installed with equipment such as a portable telephone, a telecommunication apparatus aid the like.
Background Signal transmitting-receiving apparatus has now been widely used in various applications such as portable telephone, but entrains a drawback that it is not always to communicate with high accuracy in the case of bad receiving condition or low sensitivity, due to the geographical conditions of a location. In particular, due to the structure that the antenna is retracted in a body of the receiver upon non-use, the receiving condition will become worse.
Japanese non-examined patent publication No. Hei 10-197581, which is known as to improve the receiving sensitivity and to visualize the detected wave, discloses a device which senses a high frequency alternating current generated bin LC resonance circuit from an electromagnetic wave, energize a light emitting diode by a direct current rectified by a rectifying circuit to indicate a stronger wav~ intensity direction of the wave to a user, thereby to make possible to direct the antenna to a suitable direction.
However, such a prior art antenna causes the device to have a complicated circuit structure and high costs . nlso, the prior art antenna does not have a function to discriminate a device himself from the other.
It is an object of the present invention to provide a device for detecting electromagnetic~waves to solve the above-mentioned problems, having a high sensitivity, detecting the direction of the emitting source of the wave, and discriminating the device being installed.
Description of the Invention The device for detecting electromagnetic waves comprises an antenna body in the form of a rod of electrically conductive material, a head member removably attached a top end of the antenna body, and a supporting member inserted therein and expansibly and contractibly supporting the antenna body.
The head mem~2r encloses therein a serial resonance circuit, thereby i enabling to increase the receiving sensitivity.
The serial resonance circuit comprises a capacitive resistor and a coil, or a serial resonance circuit comprising a capacitive resistor and metal washer fitted to the upper portion of the resistor to select the wave having a desired frequency, thereby achieving reduction in costs .
Alternatively, the resonance circuit comprises a rod element extending from the capacitive resistor and the coil covering the rod element to form a parallel resonance circuit, or a rod element and a metal pipe selecting the objective frequency to form a parallel resonance circuit, thereby achieving reduction in costs and a high sensitivity.
In order to select a wave having desired frequency, one or two smoothing capacitors are connected at the middle portion of the element and to the upper end of the coil to form a serial resonance circuit, thereby to achieving a high sensitivity. i Furthermore, the resonance circuit may comprise a light emitting aerial resonance circuit to form an indicating member which comprises the resonance circuit may comprise a detector diode positioned at the central portion of the element extending from the capacitive resistor in series, a light emitting diode connected between the upper end portion of the coil and the upper portion of the element, thereby to form a an indicating member consisting of a light emitting series resonance circuit. In such construction, it is possible to indicate receiving a wave by light emission of the indicating member.
The head member, Which include a built-in resonance circuit, may comprise a connecting member formed of a conductor and a cap portion.
In addition, the upper portion or whole portion of thQ cap member may be formed of a transparent or translucent insulator material, thereby enabling the indicating member or the discrimination member to be visible from the outside, Alternatively, when at least part of the cap member is Loaned by a opaque insulating material having any desired color or pattern, it provide a capability of discrimination between itself and others, The connecting member of the antenna may have a scr~w at the outer periphery, to which the cap member is screw,~d for fitting together, and a screwed penetrating hole at the center of the connecting member in the axial direction, by which the connecting member can be connected to the connecting member of the antenna member. Such construction makes possible to select one of various combinations of the cap members and the antenna members.
The antenna member may comprise a connecting member to be connected to thee head member at the upper end portion in its longitudinal direction, and a restricting member for preventing removal from the supporting member.
Furthermore, in order to improve the receiving sensitivity, the antenna body may be formed from telescopically expansible and contractible multiple pipes having the maximum length longer than its minimum length.
The antenna having the above-mentioned construction can be attached by removing the al~qady attached antenna from a portable telephone, for example, and by attaching in a manner that the supporting member of tha antenna of the present invention is fitted to the portable telephone in place, thereby exhibiting functions of improvement of receiving sensitivity, sensing the direction of the~emitting waves, indication of the receiving and discrimination between itself and others.
Brief Description of the Drawings Fig. 1 is a front view of a first embodiment of the present invention;
Fig. 2 is a sectional view of a head member of the first embodiment of the present invention;
DEVICE FOR DETECTING ELECTROMAGNETIC G~IAVES
Field of Art The present invention relates to an antenna or a device for detecting electromagnetic waves used to be installed with equipment such as a portable telephone, a telecommunication apparatus aid the like.
Background Signal transmitting-receiving apparatus has now been widely used in various applications such as portable telephone, but entrains a drawback that it is not always to communicate with high accuracy in the case of bad receiving condition or low sensitivity, due to the geographical conditions of a location. In particular, due to the structure that the antenna is retracted in a body of the receiver upon non-use, the receiving condition will become worse.
Japanese non-examined patent publication No. Hei 10-197581, which is known as to improve the receiving sensitivity and to visualize the detected wave, discloses a device which senses a high frequency alternating current generated bin LC resonance circuit from an electromagnetic wave, energize a light emitting diode by a direct current rectified by a rectifying circuit to indicate a stronger wav~ intensity direction of the wave to a user, thereby to make possible to direct the antenna to a suitable direction.
However, such a prior art antenna causes the device to have a complicated circuit structure and high costs . nlso, the prior art antenna does not have a function to discriminate a device himself from the other.
It is an object of the present invention to provide a device for detecting electromagnetic~waves to solve the above-mentioned problems, having a high sensitivity, detecting the direction of the emitting source of the wave, and discriminating the device being installed.
Description of the Invention The device for detecting electromagnetic waves comprises an antenna body in the form of a rod of electrically conductive material, a head member removably attached a top end of the antenna body, and a supporting member inserted therein and expansibly and contractibly supporting the antenna body.
The head mem~2r encloses therein a serial resonance circuit, thereby i enabling to increase the receiving sensitivity.
The serial resonance circuit comprises a capacitive resistor and a coil, or a serial resonance circuit comprising a capacitive resistor and metal washer fitted to the upper portion of the resistor to select the wave having a desired frequency, thereby achieving reduction in costs .
Alternatively, the resonance circuit comprises a rod element extending from the capacitive resistor and the coil covering the rod element to form a parallel resonance circuit, or a rod element and a metal pipe selecting the objective frequency to form a parallel resonance circuit, thereby achieving reduction in costs and a high sensitivity.
In order to select a wave having desired frequency, one or two smoothing capacitors are connected at the middle portion of the element and to the upper end of the coil to form a serial resonance circuit, thereby to achieving a high sensitivity. i Furthermore, the resonance circuit may comprise a light emitting aerial resonance circuit to form an indicating member which comprises the resonance circuit may comprise a detector diode positioned at the central portion of the element extending from the capacitive resistor in series, a light emitting diode connected between the upper end portion of the coil and the upper portion of the element, thereby to form a an indicating member consisting of a light emitting series resonance circuit. In such construction, it is possible to indicate receiving a wave by light emission of the indicating member.
The head member, Which include a built-in resonance circuit, may comprise a connecting member formed of a conductor and a cap portion.
In addition, the upper portion or whole portion of thQ cap member may be formed of a transparent or translucent insulator material, thereby enabling the indicating member or the discrimination member to be visible from the outside, Alternatively, when at least part of the cap member is Loaned by a opaque insulating material having any desired color or pattern, it provide a capability of discrimination between itself and others, The connecting member of the antenna may have a scr~w at the outer periphery, to which the cap member is screw,~d for fitting together, and a screwed penetrating hole at the center of the connecting member in the axial direction, by which the connecting member can be connected to the connecting member of the antenna member. Such construction makes possible to select one of various combinations of the cap members and the antenna members.
The antenna member may comprise a connecting member to be connected to thee head member at the upper end portion in its longitudinal direction, and a restricting member for preventing removal from the supporting member.
Furthermore, in order to improve the receiving sensitivity, the antenna body may be formed from telescopically expansible and contractible multiple pipes having the maximum length longer than its minimum length.
The antenna having the above-mentioned construction can be attached by removing the al~qady attached antenna from a portable telephone, for example, and by attaching in a manner that the supporting member of tha antenna of the present invention is fitted to the portable telephone in place, thereby exhibiting functions of improvement of receiving sensitivity, sensing the direction of the~emitting waves, indication of the receiving and discrimination between itself and others.
Brief Description of the Drawings Fig. 1 is a front view of a first embodiment of the present invention;
Fig. 2 is a sectional view of a head member of the first embodiment of the present invention;
Eig. 3 shows an exploded front view of the first embodiment of the present invention;
Fig. 9 is a circuit diagram of the first embodiment of the present invention:
Fig. 5 shows an exploded front view and a circuit diagram of a second embodiment of the present invention;
Eig. 6 shows an exploded front view of a third embodiment of the present invention;
Fig. 7 shows an exploded front view of a fourth embodiment of the present invention;
Fig. 8 shows an exploded front view of a fifth embodiment of the present invention;
Fig. 9 shows an exploded front view and a circuit diagram of a sixth embodiment of the present ~.avention;
Fig. 10 shows an exploded front view of a seventh embodiment of the present invention;
Fig . 11 is a sectional view of a head member of the seventh embodiment of thQ present invention:
Fig. 12 is a front view of the applied embodiment of the antenna of the present invention;
Fig. 13 Shows an exploded front view of a eighth embodiment of the present invention;
Fig. 14 sh~s a front view of a supporting member of the eighth i embodiment of the present invention;
Fig. 15 shows a front view of a ninth embodiment of the present invention;
Fig. I6 shows a front view of a tenth embodiment of the present invention;
Fig. 17 is a sectional view of a connecting member of the antenna of the applied embodiment of the present invention: and Fig. 18 is a view showing a form of use of a first embodiment of the present invention.
The Best Mode for Embodying the Present Invention (First Embodiment) An antenna A embodying the present invention of the present invention comprises, as shown in Fig. 1, an antenna body 1 in the form of a rod made of a conductive material, a head member 2 detachably fitted to zhe upper end portion of the antenna body 1, and a supporting member 3 inserted Lhrough the antenna body 1 for supporting it.
The head member 2 comprises, as illustrated in Fig. 2, a built-in resonance circuit 20a which receives a wave to generate a high frequency alternating current for indication. The upper part of the head member 2 is covered with a transparent or translucent cap member 210. At the lower part of the cap member 210 is provided a connecting member 220 fitted by screwing.
As shown in Fig. 3, the resonance circuit 20a comprises a capacitive resistor 201 press fitted to the antenna connecting member 220, a coil 202 snap fitted to a projection formed at the upper portion of the capacitivc resistor 201, an clement 203 disposed inside of the coil 202 at the central portion thereof. a detecting diode 209 disposed in the coil 202 and connected in series with the coil 202, and a light emitting diode 205 connected between an end of the coil 202 and an end of the element 203 in series with the detecting diode 204 (see Fig. 3).
Fig. 4 illustrates a circuit diagram showing the light emitting series resonance ci~'cuit, wherein a high frgquency alternating current generated in the coil 202 is rectified by the detecting diode 204, and then supplied to the light emitting diodo 205 to light it, thereby performing a function of indication at the indicating member 230.
As shown in Fig. 12, the antenna body 1 is provided with a connecting member 11 having threads llm for connecting it to the upper end portion of Che head member 2 by screwing. At the lower end portion of the antenna body 1 has a restricting member 12 for preventing removal of the antenna body 1 from the supporting member 3.
The antenna haring the above-mentioned construction can be attached to a portable telephone as shown in Fig. 18, for example, by removing the existing antenna and attaching in place thereof by screwing the supporting member 3 to an antenna fitting portion, thereby enabling increase in its receiving sensitivity and adjustment of the direction for a better receiving condition corresponding to the directivity of the electromagnetic waves by the aid of the intensity of the light emitted from the indicating member 230.
Referring now to a different embodiments with reference to Figs.
5 to 10 in which different head members 2 are used, and to Figs. 13 to 16 in which diffe~gnt antenna bodies 1 are used. These different head members 2 and different antenna bodies 1 can be used in any desired combination by attaching them by screwing the connecting member 11 of the antenna body 1 with the antenna connecting member 220 of the head member 2.
(Second Embodimen~) As illustrated in Fig. 5, the antenna of this embodiment comprises a series resonance circuit 20b press fitted to an antenna connecting member 220 and an discrimination member 207 made of insulating material having a desired color or pattern are enclosed within a transparent or translucent cap member 210.
The series resonance circuit 20b has a simple construction consisting of the capacitive resistor 201 and the coil 202 secured to the projection of the upper portion of the resistor 202, but the same function and effect as in the first embodiment can be~btained, and it is possible to discriminate itself from the other antenna or the device having other antenna by means of the indicating member 207.
(Third Embodiment) In the third embodiment shown in Fig. 6, different from the second embodiment, a metal washer 206 is fitted to the projection of the capacitive resistor 201. By this, a series resonance circuit 20c is formed which can perform adjustment to a desired wave, and it is possible to obtain the ~-a same function and effect as in the second embodiment.
(Fourth Embodiment) In the fourth embodiment shown in Fig. 7, there are provided a rod-shaped element extending from the capacitive xesistor 201, and a coil 202 covering the outer periphery of the element 203 and fitted to th~
capacitive resistor 201 co form a parallel resonance circuit 20d, thereby and it is possible to obtain the same function and effect as in the second and third embodiments.
(Fifth Embodiment) The fifth embodiment illustrated in Fig. d is different from th~
above fourth embodiment in that there is provided a metal pipe 208 which penetrates through~'the element 203 for sele iting a wave having a desired frequency. The metal pipe 208, within which the element 203 is inserted, is positioned within the coil 202. zn this embodiment, a parallel resonance circuit 20a is formed by using such construction as above, dnd the antenna presents same function and effect as in the second, third and fourth embodiments.
(Sixth Embodiment) The sixth embodiment illustrated in Fig. 9 (a) comprises a capacitor 209 serially connected to the rod-shaped element 203 which is extending from the capacitive resistor 201.. The capacitor 209 is so provided as to cover the outer periphery of the element 203, and constitute a series resonance circuit 20f together with a coil 202 attached to the projection of the capacitive resistor 201. The circuit diagram is shown in Fig. 9 (b) .
In this embo.~ment, it is possible not only to adjust to a desired frequency by the function of the capacitor 209, but also to obtain same function and effect as in the sQCOnd to fifth embodiments.
(Seventh Embodiment) The sixth embodiment illustrated in Figs. 10 and 11 comprises an opaque cap 210a, having any desired color or pattern, at the head portion for enabling the antenna to be discriminated from others by applying. In Eig. 11 is illustrated an example in which the resonance circuit 20b is 7 _ -n-n ~ ~ i . n ...,i Ilnr/ftl~l.INi.G7r\/ rr-nir,_. . ~n.r/n n . r .
built-in as described in the second embodiment, but it is possible to enclose any one of the resonance circuit 20c. 20d, 20e and 20f as described in the third, fourth, fifth and sixth embodiments, respectively.
(Eighth 8mbodiment) Referring now to an antenna body 1 embodying another embodiment of the present invention With reference to the drawings, in the eighth embodiment shown in Fig. 13, an antenna body lb is formed of multiple pipes 13a, 13b, 13c and 13d having different diameters from each other and arranged coaxial7.y in a manner to be expansible and contractible, thereby improving receiving sensitivity by expanding upon use. A supporting member 31 is fitted at the lower end portion of the antenna body lb. As shown in Fig. 14, t~, a supporting member 31 is attached to the antenna body lb by screwing the lowest pipe 13a having the largest diameter.
(Ninth Embodiment) In the ninth embodiment illustrated in Fig. 15, the antenna body lb in the above eighth embodiment is so modified that a shaft 33 is provided on the upper portion of a supporting member 32, and a pipe 14e positioned at the lowest and having largest diameter is connected to the shaft 33.
In this embodiment, it is possible to fold the antenna lc.
(Tenth. Embodiment) The tenth embodiment shown in Fig. 16 comprises two antenna bodies 1 at upper and lower portions, respectively, with the upper antenna body and the lower antenna body being mutually connect through an intermQdiate connecting member 14. Therefore, the entire length of the antenna body 1d is extended, thereby to improve its receiving sensitivity more easily.
In addition the present invention isralso possible to provide a sufficient sensitivity and discrimination ability as desired by a user, by using any desired combination of one of the antennas lb, le and ld of the eighth, ninth and tenth embodiments and one of head members 2 mentioned in the first through seventh embodiments.
Furthermore, as shown in Fig. 17 (a) , it is also preferable to connect by screwing the connecting member 11 of the antenna body 1 to an antenna a r ~ ~ r r r r ~."~ mut.tinr,ia..crrw ~r...._. . .,_ ..._ , . _ . .
connecting member 220 provided at the lower portion of the head member 2, or to form integrally an antenna connecting member 220a and the antenna 1.
Possibility of utilization in Industry As has beem~described above, the antenna of the present invention has a high receiving sensitivity, so that it is possible to prravent occurrence of inconvenient condition such as impossible state for receiving. In addition, due to the ability of sensing the direction of a wave emitting source, it is possible to receive a wave at a best condition even at the bad geographic location or in the shade of a building.
Furthermore, the head member is formed to be replaceable, the user can select a suitable combination according to a desired sensitivity or a performance. In addition, the antenna of the present invention can be attached in replace of the already existing antenna, thereby easily confirming whethsr the telephone belongs to the user or not.
'~'a .J C T ~ 1 'Il Al I/J~L4~I~LlJ:.~.rIT~! fl ~ r r.~f. r n n r r m, n. . . . .
Fig. 9 is a circuit diagram of the first embodiment of the present invention:
Fig. 5 shows an exploded front view and a circuit diagram of a second embodiment of the present invention;
Eig. 6 shows an exploded front view of a third embodiment of the present invention;
Fig. 7 shows an exploded front view of a fourth embodiment of the present invention;
Fig. 8 shows an exploded front view of a fifth embodiment of the present invention;
Fig. 9 shows an exploded front view and a circuit diagram of a sixth embodiment of the present ~.avention;
Fig. 10 shows an exploded front view of a seventh embodiment of the present invention;
Fig . 11 is a sectional view of a head member of the seventh embodiment of thQ present invention:
Fig. 12 is a front view of the applied embodiment of the antenna of the present invention;
Fig. 13 Shows an exploded front view of a eighth embodiment of the present invention;
Fig. 14 sh~s a front view of a supporting member of the eighth i embodiment of the present invention;
Fig. 15 shows a front view of a ninth embodiment of the present invention;
Fig. I6 shows a front view of a tenth embodiment of the present invention;
Fig. 17 is a sectional view of a connecting member of the antenna of the applied embodiment of the present invention: and Fig. 18 is a view showing a form of use of a first embodiment of the present invention.
The Best Mode for Embodying the Present Invention (First Embodiment) An antenna A embodying the present invention of the present invention comprises, as shown in Fig. 1, an antenna body 1 in the form of a rod made of a conductive material, a head member 2 detachably fitted to zhe upper end portion of the antenna body 1, and a supporting member 3 inserted Lhrough the antenna body 1 for supporting it.
The head member 2 comprises, as illustrated in Fig. 2, a built-in resonance circuit 20a which receives a wave to generate a high frequency alternating current for indication. The upper part of the head member 2 is covered with a transparent or translucent cap member 210. At the lower part of the cap member 210 is provided a connecting member 220 fitted by screwing.
As shown in Fig. 3, the resonance circuit 20a comprises a capacitive resistor 201 press fitted to the antenna connecting member 220, a coil 202 snap fitted to a projection formed at the upper portion of the capacitivc resistor 201, an clement 203 disposed inside of the coil 202 at the central portion thereof. a detecting diode 209 disposed in the coil 202 and connected in series with the coil 202, and a light emitting diode 205 connected between an end of the coil 202 and an end of the element 203 in series with the detecting diode 204 (see Fig. 3).
Fig. 4 illustrates a circuit diagram showing the light emitting series resonance ci~'cuit, wherein a high frgquency alternating current generated in the coil 202 is rectified by the detecting diode 204, and then supplied to the light emitting diodo 205 to light it, thereby performing a function of indication at the indicating member 230.
As shown in Fig. 12, the antenna body 1 is provided with a connecting member 11 having threads llm for connecting it to the upper end portion of Che head member 2 by screwing. At the lower end portion of the antenna body 1 has a restricting member 12 for preventing removal of the antenna body 1 from the supporting member 3.
The antenna haring the above-mentioned construction can be attached to a portable telephone as shown in Fig. 18, for example, by removing the existing antenna and attaching in place thereof by screwing the supporting member 3 to an antenna fitting portion, thereby enabling increase in its receiving sensitivity and adjustment of the direction for a better receiving condition corresponding to the directivity of the electromagnetic waves by the aid of the intensity of the light emitted from the indicating member 230.
Referring now to a different embodiments with reference to Figs.
5 to 10 in which different head members 2 are used, and to Figs. 13 to 16 in which diffe~gnt antenna bodies 1 are used. These different head members 2 and different antenna bodies 1 can be used in any desired combination by attaching them by screwing the connecting member 11 of the antenna body 1 with the antenna connecting member 220 of the head member 2.
(Second Embodimen~) As illustrated in Fig. 5, the antenna of this embodiment comprises a series resonance circuit 20b press fitted to an antenna connecting member 220 and an discrimination member 207 made of insulating material having a desired color or pattern are enclosed within a transparent or translucent cap member 210.
The series resonance circuit 20b has a simple construction consisting of the capacitive resistor 201 and the coil 202 secured to the projection of the upper portion of the resistor 202, but the same function and effect as in the first embodiment can be~btained, and it is possible to discriminate itself from the other antenna or the device having other antenna by means of the indicating member 207.
(Third Embodiment) In the third embodiment shown in Fig. 6, different from the second embodiment, a metal washer 206 is fitted to the projection of the capacitive resistor 201. By this, a series resonance circuit 20c is formed which can perform adjustment to a desired wave, and it is possible to obtain the ~-a same function and effect as in the second embodiment.
(Fourth Embodiment) In the fourth embodiment shown in Fig. 7, there are provided a rod-shaped element extending from the capacitive xesistor 201, and a coil 202 covering the outer periphery of the element 203 and fitted to th~
capacitive resistor 201 co form a parallel resonance circuit 20d, thereby and it is possible to obtain the same function and effect as in the second and third embodiments.
(Fifth Embodiment) The fifth embodiment illustrated in Fig. d is different from th~
above fourth embodiment in that there is provided a metal pipe 208 which penetrates through~'the element 203 for sele iting a wave having a desired frequency. The metal pipe 208, within which the element 203 is inserted, is positioned within the coil 202. zn this embodiment, a parallel resonance circuit 20a is formed by using such construction as above, dnd the antenna presents same function and effect as in the second, third and fourth embodiments.
(Sixth Embodiment) The sixth embodiment illustrated in Fig. 9 (a) comprises a capacitor 209 serially connected to the rod-shaped element 203 which is extending from the capacitive resistor 201.. The capacitor 209 is so provided as to cover the outer periphery of the element 203, and constitute a series resonance circuit 20f together with a coil 202 attached to the projection of the capacitive resistor 201. The circuit diagram is shown in Fig. 9 (b) .
In this embo.~ment, it is possible not only to adjust to a desired frequency by the function of the capacitor 209, but also to obtain same function and effect as in the sQCOnd to fifth embodiments.
(Seventh Embodiment) The sixth embodiment illustrated in Figs. 10 and 11 comprises an opaque cap 210a, having any desired color or pattern, at the head portion for enabling the antenna to be discriminated from others by applying. In Eig. 11 is illustrated an example in which the resonance circuit 20b is 7 _ -n-n ~ ~ i . n ...,i Ilnr/ftl~l.INi.G7r\/ rr-nir,_. . ~n.r/n n . r .
built-in as described in the second embodiment, but it is possible to enclose any one of the resonance circuit 20c. 20d, 20e and 20f as described in the third, fourth, fifth and sixth embodiments, respectively.
(Eighth 8mbodiment) Referring now to an antenna body 1 embodying another embodiment of the present invention With reference to the drawings, in the eighth embodiment shown in Fig. 13, an antenna body lb is formed of multiple pipes 13a, 13b, 13c and 13d having different diameters from each other and arranged coaxial7.y in a manner to be expansible and contractible, thereby improving receiving sensitivity by expanding upon use. A supporting member 31 is fitted at the lower end portion of the antenna body lb. As shown in Fig. 14, t~, a supporting member 31 is attached to the antenna body lb by screwing the lowest pipe 13a having the largest diameter.
(Ninth Embodiment) In the ninth embodiment illustrated in Fig. 15, the antenna body lb in the above eighth embodiment is so modified that a shaft 33 is provided on the upper portion of a supporting member 32, and a pipe 14e positioned at the lowest and having largest diameter is connected to the shaft 33.
In this embodiment, it is possible to fold the antenna lc.
(Tenth. Embodiment) The tenth embodiment shown in Fig. 16 comprises two antenna bodies 1 at upper and lower portions, respectively, with the upper antenna body and the lower antenna body being mutually connect through an intermQdiate connecting member 14. Therefore, the entire length of the antenna body 1d is extended, thereby to improve its receiving sensitivity more easily.
In addition the present invention isralso possible to provide a sufficient sensitivity and discrimination ability as desired by a user, by using any desired combination of one of the antennas lb, le and ld of the eighth, ninth and tenth embodiments and one of head members 2 mentioned in the first through seventh embodiments.
Furthermore, as shown in Fig. 17 (a) , it is also preferable to connect by screwing the connecting member 11 of the antenna body 1 to an antenna a r ~ ~ r r r r ~."~ mut.tinr,ia..crrw ~r...._. . .,_ ..._ , . _ . .
connecting member 220 provided at the lower portion of the head member 2, or to form integrally an antenna connecting member 220a and the antenna 1.
Possibility of utilization in Industry As has beem~described above, the antenna of the present invention has a high receiving sensitivity, so that it is possible to prravent occurrence of inconvenient condition such as impossible state for receiving. In addition, due to the ability of sensing the direction of a wave emitting source, it is possible to receive a wave at a best condition even at the bad geographic location or in the shade of a building.
Furthermore, the head member is formed to be replaceable, the user can select a suitable combination according to a desired sensitivity or a performance. In addition, the antenna of the present invention can be attached in replace of the already existing antenna, thereby easily confirming whethsr the telephone belongs to the user or not.
'~'a .J C T ~ 1 'Il Al I/J~L4~I~LlJ:.~.rIT~! fl ~ r r.~f. r n n r r m, n. . . . .
Claims (8)
1. A device for detecting electromagnetic waves characterized by comprising: comprises an antenna body in the form of a rod of electrically conductive material, a head member removably attached to a top end of said antenna body, and a supporting member inserted in said antenna body to support said supporting body.
2. The device for detecting electromagnetic waves of claim 1, characterized in that said head member encloses therein a resonance circuit for receiving as electromagnetic wave to generate a high frequency alternating current.
3. The device for detecting electromagnetic waves of claim 1 or 2, characterized in that said resonance circuit comprises a detecting diode for converting a generated high frequency alternating current into a direct current, and an indicating member having a light emitting diode.
4. The device for detecting electromagnetic waves of claim 1 or 2, characterized in that said head member has a discrimination member for discriminating itself and others.
5. The device for detecting electromagnetic waves of any one of claims 1 to 4, characterized in that said head member is formed of a transparent or translucent insulating material.
6. The device for detecting electromagnetic waves of any one of claims 1 to 5, characterized in that said indicating member or said discrimination member is accommodated in a manner to be visible from the outside.
7. The device for detecting electromagnetic waves of claim 1, characterized in that said antenna body has a connecting member connected to said head member and a restricting member at the lower portion thereof for preventing removal from said supporting member.
8. The device for detecting electromagnetic waves of claim 1, characterized in that said antenna body is formed of a expansible and contractible multiple pipes,
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9/365627 | 1997-12-22 | ||
| JP9365627A JPH10335914A (en) | 1997-04-03 | 1997-12-22 | Antenna for portable telephone set |
| JP1998009048U JP3060368U (en) | 1998-11-16 | 1998-11-16 | antenna |
| JP10/9048U | 1998-11-16 | ||
| PCT/JP1998/005813 WO1999033140A1 (en) | 1997-12-22 | 1998-12-22 | Antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2281539A1 true CA2281539A1 (en) | 1999-07-01 |
Family
ID=31189816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002281539A Abandoned CA2281539A1 (en) | 1997-12-22 | 1998-12-22 | Antenna |
Country Status (11)
| Country | Link |
|---|---|
| KR (1) | KR19990063267A (en) |
| CN (1) | CN1252173A (en) |
| AP (1) | AP9901639A0 (en) |
| AU (1) | AU1685899A (en) |
| BR (1) | BR9807602A (en) |
| CA (1) | CA2281539A1 (en) |
| EA (1) | EA199900761A1 (en) |
| ID (1) | ID24905A (en) |
| IL (1) | IL131497A0 (en) |
| OA (1) | OA11259A (en) |
| WO (1) | WO1999033140A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790167A1 (en) * | 1999-02-24 | 2000-08-25 | Guillaume Fontaine | Mobile telephone light display incoming call signaling having bulb unit antenna replacing and tuned receiver circuit radio frequency signals detecting/rectifying and light transmitting. |
| KR101054829B1 (en) * | 2008-11-13 | 2011-08-05 | (주)파트론 | Broadcast receiving antenna with removable helical head and mobile communication terminal using same |
| CN101833047B (en) * | 2009-03-13 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5496504U (en) * | 1977-12-20 | 1979-07-07 | ||
| JPH0327794U (en) * | 1989-07-26 | 1991-03-20 | ||
| JPH0636381Y2 (en) * | 1989-08-10 | 1994-09-21 | 株式会社イナックス | Separable hot and cold water mixer |
| JP3222056B2 (en) * | 1996-03-07 | 2001-10-22 | 原田工業株式会社 | Light-emitting body antenna |
-
1998
- 1998-12-21 KR KR1019980056723A patent/KR19990063267A/en not_active Application Discontinuation
- 1998-12-22 CN CN98804055A patent/CN1252173A/en active Pending
- 1998-12-22 AU AU16858/99A patent/AU1685899A/en not_active Abandoned
- 1998-12-22 IL IL13149798A patent/IL131497A0/en unknown
- 1998-12-22 EA EA199900761A patent/EA199900761A1/en unknown
- 1998-12-22 WO PCT/JP1998/005813 patent/WO1999033140A1/en active Application Filing
- 1998-12-22 CA CA002281539A patent/CA2281539A1/en not_active Abandoned
- 1998-12-22 ID IDW991031A patent/ID24905A/en unknown
- 1998-12-22 AP APAP/P/1999/001639A patent/AP9901639A0/en unknown
- 1998-12-22 BR BR9807602-7A patent/BR9807602A/en not_active IP Right Cessation
-
1999
- 1999-08-20 OA OA9900190A patent/OA11259A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999033140A1 (en) | 1999-07-01 |
| KR19990063267A (en) | 1999-07-26 |
| EA199900761A1 (en) | 2000-04-24 |
| OA11259A (en) | 2002-11-20 |
| AP9901639A0 (en) | 2000-06-22 |
| ID24905A (en) | 2000-08-31 |
| BR9807602A (en) | 2000-02-22 |
| IL131497A0 (en) | 2001-01-28 |
| CN1252173A (en) | 2000-05-03 |
| AU1685899A (en) | 1999-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |