WO1998011622A1 - Antenna for radio transmitter and receiver - Google Patents

Antenna for radio transmitter and receiver Download PDF

Info

Publication number
WO1998011622A1
WO1998011622A1 PCT/KR1996/000195 KR9600195W WO9811622A1 WO 1998011622 A1 WO1998011622 A1 WO 1998011622A1 KR 9600195 W KR9600195 W KR 9600195W WO 9811622 A1 WO9811622 A1 WO 9811622A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
antenna
radio transmitter
loading
radio
Prior art date
Application number
PCT/KR1996/000195
Other languages
French (fr)
Inventor
Eung-Soon Chang
Original Assignee
Chang Eung Soon
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chang Eung Soon filed Critical Chang Eung Soon
Priority to AU75075/96A priority Critical patent/AU7507596A/en
Publication of WO1998011622A1 publication Critical patent/WO1998011622A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • 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

Definitions

  • the present invention relates to an antenna for a radio transmitter and receiver, and particularly to an improved antenna for a radio transmitter and receiver which is capable of more efficiently transmitting and receiving radio by providing an improved antenna for a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like.
  • a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like.
  • a radio transmitter and receiver includes an antenna for more efficiently transmitting and receiving radio.
  • a high frequency signal outputted from a modulator therein is transmitted to an antenna provided in the radio transmitter and receiver for transmitting the signal to a predetermined remote radio transmitter and receiver.
  • the remote radio transmitter and receiver receives the signal through an antenna provided therein.
  • the impedances of the antenna and the radio transmitter and receiver must be accurately matched in accordance with a frequency to be transmitted and received, and a radio loss must be necessarily reduced.
  • the center type has a spring disposed in a lower portion thereof as a member for efficiently transmitting and receiving a radio signal, and is directed to winding a coil onto a bottom loading made of a resin which are formed in the center portion of the spring.
  • the non-center type has only a spring without using a center loading in the center portion thereof.
  • Figure 1 is a perspective view illustrating a state that a conventional antenna is installed in a radio transmitter and receiver.
  • the conventional antenna for a radio transmitter and receiver includes a body 1 of a radio transmitter and receiver for supporting the same and including various components therein, and an antenna 2 connected to the body 1 for transmitting and receiving radio signal therethrough.
  • Figure 2 is a perspective view illustrating a loading which is used for a conventional antenna for a radio transmitter and receiver.
  • Figure 2 illustrates a center loading of a conventional antenna.
  • a loading 3 made of a resin is connected to a lower portion of the antenna 2.
  • a coil 4 is wound onto the surface of the loading 3, and one end of the coil 4 is connected to a first spring 5 through a hole formed in the loading 3, and another end of the coil 4 is connected to a second spring
  • a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like.
  • an antenna for a radio transmitter and receiver which includes a loading, the surface of which is coated with copper and nickel, respectively, being spiral, and a threaded portion thereof which is formed in a spiral shape is removed by a predetermined length.
  • Figure 1 is a perspective view illustrating a state that a conventional antenna is installed in a radio transmitter and receiver
  • Figure 2 is a perspective view illustrating a loading which is used for a conventional antenna for a radio transmitter and receiver;
  • Figure 3A is a front view illustrating a state before a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut; and Figure 3B is a front view illustrating a state after a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut by a predetermined length.
  • Figure 3A is a front view illustrating a state before a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut
  • Figure 3B is a front view illustrating a state after a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut by a predetermined length.
  • the same elements as in the conventional construction are given the same reference numerals with respect to the present invention.
  • the loading 3 disposed between the first and second springs 5 and 6 is molded in a spiral shape, and the loading 3 is firstly coated with copper, and is secondly coated with nickel, and then a threaded portion of the loading 3 is removed by a predetermined length.
  • the present invention is basically directed to fabricating the loading a mold method in a spiral shape as shown in Figure 3A.
  • the surface of the loading 3 is coated with copper, and then is coated with nickel.
  • the loading 3 itself is made conductive, so that it is possible to more efficiently transmit and receive radio signals.
  • the coating of the cut portion is removed as shown in Figure 3B.
  • the remaining portion (the hatched portion in the drawing) has a copper- and nickel-coated portion, so that the copper- and nickel-coated portion serves as a coil in the conventional art.
  • the copper- and nickel-coated portion of the loading 3 serves as a conductive material of the coil in the conventional art, it is unnecessary to wind coil onto the surface of the loading as in the conventional art.
  • the connection process between the coil and the spring are unnecessary in the present invention, whereby the fabrication process is made easier, and since the coils are not used in the present invention, it is possible to reduce the fabrication cost.
  • the technique used in the present invention is useful for a code division multiple access (CDMA), and may be used for a high frequency inductor using a ceramic. In particular, the technique thereof may be used for an SMD.
  • CDMA code division multiple access

Abstract

An antenna for a radio transmitter and receiver which makes it possible to more efficiently transmit and receive radio by providing an improved antenna for a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like, which includes a loading, the surface of which is coated with copper and nickel, respectively being spiral, and a threaded portion thereof which is formed in a spiral shape which is removed by a predetermined length.

Description

ANTENNA FOR RADIO TRANSMITTER AND RECEIVER
TECHNICAL FIELD
The present invention relates to an antenna for a radio transmitter and receiver, and particularly to an improved antenna for a radio transmitter and receiver which is capable of more efficiently transmitting and receiving radio by providing an improved antenna for a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like.
BACKGROUND ART
Generally, a radio transmitter and receiver includes an antenna for more efficiently transmitting and receiving radio.
Namely, in the radio transmitter and receiver, a high frequency signal outputted from a modulator therein is transmitted to an antenna provided in the radio transmitter and receiver for transmitting the signal to a predetermined remote radio transmitter and receiver. In addition, the remote radio transmitter and receiver receives the signal through an antenna provided therein.
In order to improve a radio transmitting and receiving characteristic of the radio transmitter and receiver, the impedances of the antenna and the radio transmitter and receiver must be accurately matched in accordance with a frequency to be transmitted and received, and a radio loss must be necessarily reduced.
As an antenna for a radio transmitter and receiver, there are two types of antennas: a center type and a non-center type. The center type has a spring disposed in a lower portion thereof as a member for efficiently transmitting and receiving a radio signal, and is directed to winding a coil onto a bottom loading made of a resin which are formed in the center portion of the spring. The non-center type has only a spring without using a center loading in the center portion thereof.
Figure 1 is a perspective view illustrating a state that a conventional antenna is installed in a radio transmitter and receiver.
As shown therein, the conventional antenna for a radio transmitter and receiver includes a body 1 of a radio transmitter and receiver for supporting the same and including various components therein, and an antenna 2 connected to the body 1 for transmitting and receiving radio signal therethrough.
Figure 2 is a perspective view illustrating a loading which is used for a conventional antenna for a radio transmitter and receiver. In more detail, Figure 2 illustrates a center loading of a conventional antenna.
As shown therein, a loading 3 made of a resin is connected to a lower portion of the antenna 2. A coil 4 is wound onto the surface of the loading 3, and one end of the coil 4 is connected to a first spring 5 through a hole formed in the loading 3, and another end of the coil 4 is connected to a second spring
6 through another hole formed in the loading 3, for thus achieving a desired characteristic of signal transmission and receiving. However, in the conventional antenna for a radio transmitter and receiver, it is difficult to wind the coil 4 onto the outer surface of the loading disposed in the center portion of the first and second springs 5 and 6. In addition, it is difficult to connect the wound coil 4 and the first and second springs 5 and 6. Moreover, since the coil 4 is additionally used therein, for thus increasing the fabrication cost of the antenna for a radio transmitter and receiver.
In addition, as means for winding a coil onto the loading 3, since an acetal material must molded, for thus increasing the cost of the radio transmitter and receiver.
DISCLOSURE OF THE INVENTION Accordingly, it is an object of the present invention to provide an antenna for a radio transmitter and receiver which which overcomes the problems encountered in the conventional radio transmitter and receiver.
It is another object of the present invention to provide an antenna for a radio transmitter and receiver which makes it possible to more efficiently transmit and receive radio by providing an improved antenna for a radio transmitter and receiver such as a wireless phone, a mobile phone, a personal communication system (PCS), and the like.
To achieve the above objects, there is provided an antenna for a radio transmitter and receiver which includes a loading, the surface of which is coated with copper and nickel, respectively, being spiral, and a threaded portion thereof which is formed in a spiral shape is removed by a predetermined length.
Additional advantages, objects and other features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and advantages of the invention may be realized and attained as particularly pointed out in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
Figure 1 is a perspective view illustrating a state that a conventional antenna is installed in a radio transmitter and receiver; Figure 2 is a perspective view illustrating a loading which is used for a conventional antenna for a radio transmitter and receiver;
Figure 3A is a front view illustrating a state before a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut; and Figure 3B is a front view illustrating a state after a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut by a predetermined length.
MODES FOR CARRYING OUT THE INVENTION Figure 3A is a front view illustrating a state before a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut, and Figure 3B is a front view illustrating a state after a threaded portion of a loading of an antenna for a radio transmitter and receiver according to the present invention is cut by a predetermined length. Here, the same elements as in the conventional construction are given the same reference numerals with respect to the present invention.
As shown therein, in the antenna for a radio transmitter and receiver, the loading 3 disposed between the first and second springs 5 and 6 is molded in a spiral shape, and the loading 3 is firstly coated with copper, and is secondly coated with nickel, and then a threaded portion of the loading 3 is removed by a predetermined length.
Namely, the present invention is basically directed to fabricating the loading a mold method in a spiral shape as shown in Figure 3A.
In addition, the surface of the loading 3 is coated with copper, and then is coated with nickel.
With the copper- and nickel-coated surface of the loading 3, the loading 3 itself is made conductive, so that it is possible to more efficiently transmit and receive radio signals.
In the state that the surface of the loading 3 is coated with copper and nickel, when the threaded portion of the loading is cut by a predetermined length, the coating of the cut portion is removed as shown in Figure 3B. The remaining portion (the hatched portion in the drawing) has a copper- and nickel-coated portion, so that the copper- and nickel-coated portion serves as a coil in the conventional art.
Therefore, since the copper- and nickel-coated portion of the loading 3 serves as a conductive material of the coil in the conventional art, it is unnecessary to wind coil onto the surface of the loading as in the conventional art. In addition, the connection process between the coil and the spring are unnecessary in the present invention, whereby the fabrication process is made easier, and since the coils are not used in the present invention, it is possible to reduce the fabrication cost. In addition, the technique used in the present invention is useful for a code division multiple access (CDMA), and may be used for a high frequency inductor using a ceramic. In particular, the technique thereof may be used for an SMD.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as recited in the accompanying claims.

Claims

1. An antenna for a radio transmitter and receiver wherein first and second springs 5 and 6 are connected, comprising: a loading 3, the surface of which is coated with copper and nickel, respectively, being spiral, and a threaded portion 7 thereof which is formed in a spiral shape is removed by a predetermined length.
2. The antenna of claim 1, wherein said loading 3 is used for a code division multiple access (CDMA).
3. The antenna of claim 1, wherein said loading 3 is used for a high frequency SMD inductor.
PCT/KR1996/000195 1996-09-16 1996-11-06 Antenna for radio transmitter and receiver WO1998011622A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU75075/96A AU7507596A (en) 1996-09-16 1996-11-06 Antenna for radio transmitter and receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019960040126A KR0177030B1 (en) 1996-09-16 1996-09-16 Antenna for wireless machine
KR1996/40126 1996-09-16

Publications (1)

Publication Number Publication Date
WO1998011622A1 true WO1998011622A1 (en) 1998-03-19

Family

ID=19473886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1996/000195 WO1998011622A1 (en) 1996-09-16 1996-11-06 Antenna for radio transmitter and receiver

Country Status (3)

Country Link
KR (1) KR0177030B1 (en)
AU (1) AU7507596A (en)
WO (1) WO1998011622A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008063026A1 (en) * 2006-11-23 2008-05-29 E.M.W. Antenna Co., Ltd. Antenna of parallel-ring type

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099010A (en) * 1960-02-19 1963-07-23 Columbia Products Co High-q loading coil having plural interleaved paralleled windings in combination with axial antenna
US4137534A (en) * 1977-05-26 1979-01-30 Goodnight Roy G Vertical antenna with low angle of radiation
US4161737A (en) * 1977-10-03 1979-07-17 Albright Eugene A Helical antenna
EP0613206A1 (en) * 1993-02-25 1994-08-31 Nec Corporation Antenna for a radio communication apparatus
US5420579A (en) * 1990-10-29 1995-05-30 Bio Medic Data Systems, Inc. Antenna and driving circuit for transmitting and receiving signals to and from a passive transponder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099010A (en) * 1960-02-19 1963-07-23 Columbia Products Co High-q loading coil having plural interleaved paralleled windings in combination with axial antenna
US4137534A (en) * 1977-05-26 1979-01-30 Goodnight Roy G Vertical antenna with low angle of radiation
US4161737A (en) * 1977-10-03 1979-07-17 Albright Eugene A Helical antenna
US5420579A (en) * 1990-10-29 1995-05-30 Bio Medic Data Systems, Inc. Antenna and driving circuit for transmitting and receiving signals to and from a passive transponder
EP0613206A1 (en) * 1993-02-25 1994-08-31 Nec Corporation Antenna for a radio communication apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008063026A1 (en) * 2006-11-23 2008-05-29 E.M.W. Antenna Co., Ltd. Antenna of parallel-ring type

Also Published As

Publication number Publication date
KR19980021312A (en) 1998-06-25
AU7507596A (en) 1998-04-02
KR0177030B1 (en) 1999-05-15

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