KR101684174B1 - Stereotype FM Radio Antenna for Wireless Headset - Google Patents

Stereotype FM Radio Antenna for Wireless Headset Download PDF

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Publication number
KR101684174B1
KR101684174B1 KR1020150134825A KR20150134825A KR101684174B1 KR 101684174 B1 KR101684174 B1 KR 101684174B1 KR 1020150134825 A KR1020150134825 A KR 1020150134825A KR 20150134825 A KR20150134825 A KR 20150134825A KR 101684174 B1 KR101684174 B1 KR 101684174B1
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KR
South Korea
Prior art keywords
antenna
radio antenna
wireless headset
radio
neckband
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KR1020150134825A
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Korean (ko)
Inventor
전지환
김민기
신현웅
유상문
김형동
Original Assignee
한양대학교 산학협력단
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)

Abstract

An FM radio antenna for stereophonic wireless headsets is presented. An FM radio antenna for a stereophonic wireless headset, comprising: a main board; An auxiliary substrate; An earphone line connected to the main board and the auxiliary board, respectively; A neck band connecting the main substrate and the auxiliary substrate; And at least one passive element formed between the feeding point formed on the main board and the earphone line, and the earphone line may be used as an antenna by using the earphone line as a radiator.

Description

Stereotype FM Radio Antenna for Wireless Headset for Stereo Wireless Headset [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna, and more particularly, to a technique for implementing a neckband or earphone line, which is a structure existing in a stereotype wireless headset, with an FM radio antenna.

Wireless headsets that utilize wireless communications are rapidly growing in penetration and are classified as alternatives to wired earphones. In the case of a conventional wireless headset, only an antenna for Bluetooth communication is mounted, but the implementation of an FM antenna for implementing a radio function by a wireless headset alone is required by consumers.

However, since the frequency band of the FM radio is 88 to 108 MHz and the center frequency of 98 MHz is approximately 3 M, when an antenna is manufactured without using a structure existing in a conventional wireless headset using a conventional technology, There are difficulties in implementing an FM radio antenna on a PCB for a headset. Although wireless headset using wireless communication has various functions, it is difficult to implement various functions by wireless headset which is becoming smaller and smaller.

Korean Patent Laid-Open No. 10-2010-0009159 discloses such a built-in antenna for a headset, and describes an antenna with a built-in Bluetooth function in the headset.

Embodiments describe an FM radio antenna for a stereotyped wireless headset, and more specifically, a technique for implementing a neckband or earphone line, which is a structure present in a stereotyped wireless headset, with an FM radio antenna.

Embodiments provide a stereo type wireless headset FM that can operate stably in the FM radio frequency band by implementing a neckband or earphone line, which is a structure existing in a stereo type wireless headset, with an FM radio antenna and controlling a resonance frequency using a passive element. Provide a radio antenna.

Embodiments provide a technique for implementing a neckband or earphone line, which is a structure existing in a stereotyped wireless headset, with an FM radio antenna by controlling the input impedance using a feed structure and downsizing it.

An FM radio antenna for a stereophonic wireless headset, comprising: a main board; An auxiliary substrate; An earphone line connected to the main board and the auxiliary board, respectively; A neck band connecting the main substrate and the auxiliary substrate; And at least one passive element formed between the feed point formed on the main board and the earphone line, and operates as an antenna using the earphone line as a radiator.

Here, the at least one passive element may include at least one of an inductive element and a capacitive element to adjust the resonant frequency.

The antenna may operate as an antenna in the FM radio band 88 MHz to 108 MHz using the earphone line as a radiator.

The main substrate may further include a feed structure connected to the feed point, and the feed structure may control an input impedance of the antenna.

The feed structure may include a loop resonator.

An FM radio antenna for a stereophonic wireless headset according to another embodiment, comprising: a main board; An auxiliary substrate; An earphone line connected to the main board and the auxiliary board, respectively; A neck band connecting the main substrate and the auxiliary substrate; And at least one passive element formed between the feeding point formed on the main board and the earphone line, and operates as an antenna using the neckband as a radiator.

Here, the at least one passive element may include at least one of an inductive element and a capacitive element to adjust the resonant frequency.

The antenna may operate as an antenna in the FM radio band 88 MHz to 108 MHz using the neckband as a radiator.

The main substrate may further include a feed structure connected to the feed point, and the feed structure may control an input impedance of the antenna.

Further, the neckband can be additionally allocated with a cable used as an FM radio antenna.

Embodiments of the present invention provide a stereo type wireless headset capable of stably operating in the FM radio frequency band by implementing a neckband or earphone line, which is a structure existing in a stereo type wireless headset, with an FM radio antenna and controlling a resonance frequency using a passive element For example, an FM radio antenna.

Embodiments provide an FM radio antenna for a stereophonic wireless headset that can be applied to a neckband or earphone line without modification of a conventional stereo type wireless headset by controlling the input impedance using a feed structure and downsizing the size of the FM radio antenna .

1 is a diagram illustrating a general stereo type wireless headset structure.
2 is a diagram illustrating an FM radio antenna structure implemented in an earphone line according to an embodiment.
3 is a diagram illustrating an FM radio antenna structure implemented in an earphone line according to an embodiment.
4 is a view showing an application example of an FM radio antenna implemented in an earphone line according to an embodiment.
5 is a view illustrating a structure of an FM radio antenna implemented in a neckband according to another embodiment.
6 is a view showing a structure of an FM radio antenna implemented in a neckband according to another embodiment.
7 is a view showing an application example of an FM radio antenna implemented in a neckband according to another embodiment.
8 is a view for explaining an FM radio antenna implemented in a neckband according to another embodiment.
9 is a view for explaining resonant frequency control of an FM radio antenna implemented in an earphone line according to an embodiment.
10 is a view for explaining resonance frequency control of an FM radio antenna implemented in an earphone line according to an embodiment.
11 is a view for explaining an actual reflection coefficient of an FM radio antenna implemented in an earphone line according to an embodiment.
12 is a view for explaining resonant frequency control of an FM radio antenna implemented in a neckband according to another embodiment.
13 is a view for explaining resonance frequency control of an FM radio antenna implemented in a neckband according to another embodiment.
14 is a view for explaining an actual reflection coefficient of an FM radio antenna implemented in a neckband according to another embodiment.

Hereinafter, embodiments will be described with reference to the accompanying drawings. However, the embodiments described may be modified in various other forms, and the scope of the present invention is not limited by the embodiments described below. In addition, various embodiments are provided to more fully describe the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

In the conventional wireless headset, only an antenna for wireless communication such as Bluetooth is mounted. However, according to one embodiment, the FM radio antenna for realizing the radio function can be mounted in the wireless headset only by the wireless headset itself.

However, it is difficult to mount an antenna operating in the FM radio band 88 MHz to 108 MHz in a conventional wireless headset. For example, an antenna operating at 100 MHz is approximately 75 cm long and can not be mounted in the earphone line or neckband of a conventional wireless headset.

Accordingly, the FM radio antenna for a stereophonic wireless headset according to an embodiment includes at least one of an inductive element and a capacitive element formed between a feed point formed on a main board and an earphone line or a neck band, Can be used as an antenna. That is, an FM radio antenna for a stereotyped wireless headset can be mounted in the earphone line or neckband of a wireless headset by reducing the size of the antenna using inductive or capacitive elements.

The neckband for connecting the earphone line and the printed circuit board (PCB), which is an integral part of the stereo type wireless headset, is considerably larger than the PCB size. Below we can suggest an FM radio antenna for a stereo type wireless headset that uses this earphone line or neckband structure as an antenna for an FM radio.

More specifically, according to one embodiment, an earphone line or a neck band may be fed to serve as a monopole type antenna, and an inductive element and a capacitive element may be used between the power feeding section and the antenna to control the antenna operating frequency.

1 is a diagram illustrating a general stereo type wireless headset structure.

1 illustrates a general structure of a stereophonic wireless headset. In a typical stereophonic wireless headset 100, a main substrate 110 and an auxiliary substrate 120 exist, and a main substrate 110 and an auxiliary substrate 120 And can be connected using a neckband 140. The main board 110 and the auxiliary board 120 may be connected to an earphone line 130, respectively.

For example, in the case of a wireless headset 100 using Bluetooth, a Bluetooth antenna for performing short-range wireless communication may be mounted on the main board 110 and may be supplied to the Bluetooth antenna by a predetermined electrical connection means .

2 is a diagram illustrating an FM radio antenna structure implemented in an earphone line according to an embodiment.

Referring to FIG. 2, a structure of an FM radio antenna for a stereophonic wireless headset implemented in an earphone line is shown. The earphone line can be operated as an FM radio antenna using a radiator.

An FM radio antenna 200 for a stereo type wireless headset implemented in an earphone line according to an embodiment includes a main board 210, an auxiliary board 220, an earphone line 230, a neckband 240, 233). Here, the FM radio antenna is configured to receive the FM radio and may be configured in various forms, for example, as shown in FIG. 2.

The main substrate 210 and the auxiliary substrate 220 may be made of a printed circuit board (PCB) on which an antenna pattern is formed.

A wireless antenna such as Bluetooth of a stereo type wireless headset may be disposed on at least one of the main substrate 210 and the auxiliary substrate 220 and the main substrate 210 and the auxiliary substrate 220 may be connected to the neck band 240 Lt; / RTI > For example, in the case of a wireless headset using Bluetooth, a Bluetooth antenna for performing short-range wireless communication may be mounted on the main board 210 and / or the auxiliary board 220, and the Bluetooth antenna . ≪ / RTI >

An FM radio antenna may be provided on at least one of the main substrate 210 and the auxiliary substrate 220. A feed point 231 is formed at one end of the main substrate 210 and the feed point 231 is connected to a ground line Lt; / RTI >

The earphone line 230 may be connected to an ear pad (not shown) through a cable including a signal line and a ground line, and may be worn on a user's ear. The earphone line 230 may be connected to the main board 210 and the auxiliary board 220, respectively.

The neckband 240 may connect the main board 210 and the auxiliary board 220 as described above, and may include cables including a signal line and a ground line.

The passive elements 233 may be formed between the feed point 231 formed on the main substrate 210 and the earphone line 230. [

Here, the passive element 233 may be a capacitor, an inductor, a resistor, or the like. For example, passive element 233 may comprise at least one of an inductive element and a capacitive element to control the resonant frequency.

The capacitive element has a predetermined capacitance, and the inductive element can have a predetermined inductance. The inductive element can be, for example, a capacitor, and the capacitive element, for example, an inductor can be used.

As described above, the FM radio antenna 200 for a stereophonic wireless headset implemented in the earphone line can operate as an FM radio antenna using the earphone line 230 as a radiator.

More specifically, an FM radio antenna 200 for a stereo type wireless headset implemented in an earphone line can operate as an antenna at the FM radio band 88 MHz to 108 MHz using the earphone line 230 as a radiator.

Accordingly, it is possible to provide an FM radio antenna for a stereo type wireless headset that can operate stably in the FM radio frequency band by implementing an earphone line existing in a stereo type wireless headset with an FM radio antenna and controlling a resonance frequency using a passive element .

In addition, the main substrate 210 may further include a feed structure 232 connected to the feed point 231. The feed structure 232 can control the input impedance of the antenna.

And feed structure 232 may comprise a loop resonator.

In this way, the input impedance can be controlled using the feed structure and the size of the FM radio antenna can be miniaturized.

Hereinafter, an FM radio antenna for a stereophonic wireless headset implemented in an earphone line will be specifically described as an example.

For example, 13 × 35 is in any wireless headset including the antenna design of the PCB mm 2 can be applied to the FM radio antenna for a stereo type wireless headset that is implemented in the earphone line.

An FM radio antenna for a stereo type wireless headset implemented in an earphone line can be operated as an antenna by utilizing an earphone line connected to a PCB of any Bluetooth headset as a good radiator. For example, the length of the earphone line is 250 mm, and at least one of the inductive element and the capacitive element can be used between the earphone line and the feed point to adjust the resonance frequency.

The FM radio antenna for stereophonic wireless headsets implemented in these earphone lines can be designed to operate in the FM radio band 88 MHz to 108 MHz.

Furthermore, a feed structure may be inserted to control the input impedance of an FM radio antenna for a stereophonic wireless headset implemented in an earphone line.

3 is a diagram illustrating an FM radio antenna structure implemented in an earphone line according to an embodiment.

Referring to FIG. 3, a feeding structure is added to an FM radio antenna 200 for a stereophonic wireless headset implemented in the earphone line described with reference to FIG. 2. The FM radio antenna 200 for stereophonic wireless headset The power supply structure 200 may further include a power supply structure 232 connected to the power supply point 231 of the main substrate 210. This feed structure 232 can control the input impedance of the antenna.

In addition, the main substrate 210 may further include a loop resonator to form the power supply structure 232, thereby controlling the input impedance of the antenna.

On the other hand, the antenna may include two types of lines: a signal line and a ground line. Here, the ground line may be used as an antenna and the ground line may be connected to a section for giving an FM radio antenna signal. At this time, the antenna signal line of the FM radio connected to the ground line can be connected by adding an inductor or a capacitor.

For example, if the antennas are not matched, the ground line may be fed from the signal line as shown in FIG. 4. At this time, the input impedance can be adjusted by feeding the antenna by adding a loop resonator have.

Thus, by controlling the input impedance by using the feeding structure and miniaturizing the size of the FM radio antenna, it is possible to provide an FM radio antenna for a stereo type wireless headset that can be applied to an earphone line without deforming the conventional stereo type wireless headset.

4 is a view showing an application example of an FM radio antenna implemented in an earphone line according to an embodiment.

As shown in FIG. 4, the FM radio antenna 200 for a stereo type wireless headset implemented in the earphone line described in FIGS. 2 and 3 can be actually applied to an earphone line of a stereotype wireless headset.

5 is a view illustrating a structure of an FM radio antenna implemented in a neckband according to another embodiment.

Referring to FIG. 5, a structure of a FM radio antenna for a stereophonic wireless headset implemented in a neck band is shown. The neckband can be used as an FM radio antenna using a radiator.

An FM radio antenna 300 for a stereo type wireless headset implemented in a neckband according to another embodiment includes a main substrate 310, an auxiliary substrate 320, a neckband 340, and a passive element 343 . Here, the FM radio antenna is for receiving the FM radio and may be configured in various forms, for example, as shown in FIG. 5.

The main substrate 310 and the auxiliary substrate 320 may be made of a printed circuit board (PCB) on which an antenna pattern is formed.

A wireless antenna such as Bluetooth of a stereo type wireless headset may be formed on the main board 310 and the auxiliary board 320 and the main board 310 and the auxiliary board 320 may be connected by a neck band 340 . For example, in the case of a wireless headset using Bluetooth, a Bluetooth antenna for performing short-range wireless communication can be mounted on the main board 310 and / or the auxiliary board 320, and a Bluetooth antenna It can be fed.

An FM radio antenna may be provided on at least one of the main substrate 310 and the auxiliary substrate 320. A feeding point 341 is formed at one end of the FM radio antenna and the feeding point 341 is connected to a ground line Lt; / RTI >

As described above, the neckband 340 may connect the main board 310 and the auxiliary board 320, and may include a cable including a signal line and a ground line.

delete

The passive element 343 may include at least one passive element 343 and may be formed between the feeding point 341 formed on the main substrate 310 and the neckband 340.

Here, the passive element 343 may be a capacitor, an inductor, a resistor, or the like. For example, the passive element 343 may comprise at least one of an inductive element and a capacitive element to control the resonant frequency.

The capacitive element has a predetermined capacitance, and the inductive element can have a predetermined inductance. The inductive element can be, for example, a capacitor, and the capacitive element, for example, an inductor can be used.

As such, the FM radio antenna 300 for a stereophonic wireless headset implemented in a neckband can operate as an FM radio antenna using the neckband 340 as a radiator.

More specifically, an FM radio antenna 300 for a stereo type wireless headset implemented in a neckband can operate as an antenna in the FM radio band 88 MHz to 108 MHz using the neckband 340 as a radiator.

Accordingly, it is possible to provide an FM radio antenna for a stereo type wireless headset which can stably operate in the FM radio frequency band by implementing the neck band existing in the stereo type wireless headset with the FM radio antenna and controlling the resonance frequency using the passive element .

Further, the main substrate 310 may further include a feed structure 342 connected to the feed point 341. The feed structure 342 can downsize the size of the antenna by controlling the input impedance of the antenna.

And the feed structure 342 may include a loop resonator.

Further, the neckband 340 may be additionally allocated with a cable used as an FM radio antenna. The description thereof will be specifically described below.

Hereinafter, an FM radio antenna for a stereophonic wireless headset implemented in a neck band will be described as an example in detail.

For example, 13 × 35 antenna any wireless headset including a design of the PCB mm 2 can be applied to the FM radio antenna for a stereo type wireless headset that is implemented on a neckband.

An FM radio antenna for a stereophonic wireless headset mounted on a neckband can operate as an antenna by utilizing a neckband that connects two PCB's of any Bluetooth headset as a good radiator. For example, the length of the neckband is 290 mm, and at least one of the inductive element and the capacitive element can be used between the neckband and the feed point to adjust the resonant frequency.

An FM radio antenna for a stereo type wireless headset implemented on such a neckband may be designed to operate in the FM radio band 88 MHz to 108 MHz.

Furthermore, a feed structure may be inserted for input impedance control of an FM radio antenna for a stereo type wireless headset implemented in a neckband.

6 is a view showing a structure of an FM radio antenna implemented in a neckband according to another embodiment.

Referring to FIG. 6, it can be shown that a feed structure is added to an FM radio antenna 300 for a stereophonic wireless headset implemented in the neck band described in FIG. That is, in order to control the input impedance, the feed structure may be inserted into the FM radio antenna 300 for a stereo type wireless headset implemented in the neck band described in FIG.

More specifically, the FM radio antenna 300 for a stereophonic wireless headset implemented in a neckband may further include a feed structure 342 connected to a feed point 341 of the main substrate 310. This feeding structure 342 can control the input impedance of the antenna.

Further, the main substrate 310 can further control the input impedance of the antenna by forming the feed structure 342 by further configuring a loop resonator.

On the other hand, the antenna may include two types of lines: a signal line and a ground line. Here, the ground line may be used as an antenna and the ground line may be connected to a section for giving an FM radio antenna signal. At this time, the antenna signal line of the FM radio connected to the ground line can be connected by adding an inductor or a capacitor.

For example, if the antennas are not matched, the ground line may be fed from the signal line as shown in FIG. 6. At this time, the input impedance can be adjusted by feeding the antenna by adding a loop resonator have.

If the earphone line is used as an antenna, only the ground line can be used as an antenna. However, if the neckband is used as an antenna, the ground line can be used as an antenna or an additional cable can be used as an antenna.

In this way, it is possible to provide an FM radio antenna for a stereo type wireless headset that can be applied to a neckband without deforming the conventional stereo type wireless headset by controlling the input impedance using the feed structure and downsizing the size of the FM radio antenna.

7 is a view showing an application example of an FM radio antenna implemented in a neckband according to another embodiment.

As shown in FIG. 7, the FM radio antenna 300 for a stereo type wireless headset implemented in the neck band described in FIGS. 5 and 6 can be practically applied to the neck band of a stereotype wireless headset.

8 is a view for explaining an FM radio antenna implemented in a neckband according to another embodiment.

Referring to FIG. 8, an FM radio antenna implemented in a neckband according to another embodiment includes a separate cable 11a capable of providing an FM radio antenna to a neckband 10 connecting a main board and an auxiliary board And can be implemented.

On the other hand, the antenna may include two types of lines, a signal line and a ground line. Here, the ground line may be used as an antenna and the ground line may be connected to a section for giving an FM radio antenna signal. At this time, the antenna signal line of the FM radio connected to the ground line can be connected by adding a passive element.

If the earphone line is used as an antenna, only the ground line can be used as an antenna. However, if the neckband is used as an antenna, the ground line can be used as an antenna or an additional cable can be used as an antenna.

There is a ground line connecting the two PCBs to the neck band. The ground line can be used as an FM radio antenna, or it can be used as an FM radio antenna by allocating a separate cable.

For example, if there are eight cables 11 in the neckband 10 antenna of a Bluetooth headset, one cable 11a may be added to serve as an FM radio antenna.

On the other hand, when the ground line is used as an antenna, an antenna can be implemented using an inductor. However, when the ground line is used as an antenna, the use of the capacitor may be restricted.

Therefore, when a single cable 11a is additionally allocated to the neckband 10 and used as an FM radio antenna, the use of passive elements such as an inductor and a capacitor is not limited, and the degree of freedom in designing the antenna is high.

9 is a view for explaining resonant frequency control of an FM radio antenna implemented in an earphone line according to an embodiment. As shown in FIG. 9, when the earphone line is used as an antenna, the resonance frequency can be controlled according to the change of the inductive element.

10 is a view for explaining resonance frequency control of an FM radio antenna implemented in an earphone line according to an embodiment. As shown in FIG. 10, when the earphone line is used as an antenna, it is possible to show a simulation reflection coefficient in the FM radio frequency band.

As shown in FIGS. 9 and 10, the FM radio antenna implemented in the earphone line can adjust the reflection coefficient to -6 dB or less as the inductor (L) is used in the FM radio band 88 MHz to 108 MHz.

Good results can be obtained by adjusting the resonance frequency by a simple method of adding a capacitive element such as an inductor.

In addition, impedance matching may be performed by forming a power supply structure including an inductor and a capacitor. For example, when power is supplied directly without impedance matching, the impedances do not match with each other, so that power can not be transmitted from the feed point to the antenna and can be reflected. When the power is not transmitted from the feed point to the antenna and thus reflected, the impedance matching is required. The impedance matching can be performed by adjusting the impedance by adding a loop resonator.

11 is a view for explaining an actual reflection coefficient of an FM radio antenna implemented in an earphone line according to an embodiment.

Referring to FIG. 11, the reflection coefficient measured by actually implementing the FM radio antenna implemented in the earphone line can be confirmed.

Thus, an FM radio antenna for an operable stereo type wireless headset implemented in an earphone line is operable stably in the FM radio frequency band by controlling the resonance frequency using a passive element. In addition, by controlling the input impedance using the feeding structure and miniaturizing the size of the FM radio antenna, it can be applied to the earphone line without modification of the conventional stereo type wireless headset.

12 is a view for explaining resonant frequency control of an FM radio antenna implemented in a neckband according to another embodiment. As shown in FIG. 12, when the neckband is used as an antenna, the resonance frequency can be controlled according to the change of the inductive element.

13 is a view for explaining resonance frequency control of an FM radio antenna implemented in a neckband according to another embodiment. As shown in FIG. 13, when the neckband is used as an antenna, it is possible to show the simulation reflection coefficient in the FM radio frequency band.

As shown in FIGS. 12 and 13, the FM radio antenna implemented in the neck band can adjust the reflection coefficient to -6 dB or less as the inductor L is used in the FM radio band 88 MHz to 108 MHz.

Good results can be obtained by adjusting the resonance frequency by a simple method of adding a capacitive element such as an inductor.

In addition, impedance matching may be performed by forming a power supply structure including an inductor and a capacitor. For example, when power is supplied directly without impedance matching, the impedances do not match with each other, so that power can not be transmitted from the feed point to the antenna and can be reflected. When the power is not transmitted from the feed point to the antenna and thus reflected, the impedance matching is required. The impedance matching can be performed by adjusting the impedance by adding a loop resonator.

14 is a view for explaining an actual reflection coefficient of an FM radio antenna implemented in a neckband according to another embodiment.

Referring to FIG. 14, the reflection coefficient measured by actually implementing the FM radio antenna implemented in the neckband can be confirmed.

Thus, an FM radio antenna for an operable stereo type wireless headset implemented in a neckband is operable stably in the FM radio frequency band by controlling the resonance frequency using a passive element. In addition, by controlling the input impedance using the feeding structure and miniaturizing the size of the FM radio antenna, it can be applied to the neckband without modification of the conventional stereo type wireless headset.

As described above, wireless headset using wireless communication is rapidly growing in penetration rate, and is classified as a technology to replace wired earphone in the future. It is a reality that it is difficult to implement by a wireless headset that requires various functions but is miniaturized.

The antenna according to these embodiments is applicable to a stereo type wireless headset having a necklace or earphone line for using an FM radio. It is also applicable to stereophonic wireless headsets for implementing FM radios and antennas using the 30 MHz to 1 GHz band. Furthermore, although the FM antenna is manufactured by using the earphone line and the neck band of the wireless headset as antennas, it is possible to implement an antenna that can be used in various frequency bands other than the FM antenna.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, controller, arithmetic logic unit (ALU), digital signal processor, microcomputer, field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing apparatus may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (10)

A main board;
An auxiliary substrate;
An earphone line formed of a cable including a signal line and a ground line and connected to the main board and the auxiliary board, respectively;
A neck band connecting the main substrate and the auxiliary substrate; And
And at least one passive element formed between the feeding point formed on the main board and the earphone line,
Lt; / RTI >
A short-range wireless communication antenna is mounted on the main board and is supplied by a predetermined electrical connection, and the earphone line is operated as an FM radio antenna using the earphone line as a radiator,
The main board further includes a feed structure connected to the feed point, and the feed structure controls the input impedance of the antenna to reduce the size of the FM radio antenna
An FM radio antenna for a stereo type wireless headset. The method according to claim 1,
Wherein the at least one passive element comprises:
Comprising at least one of an inductive element and a capacitive element to adjust the resonant frequency
An FM radio antenna for a stereo type wireless headset. The method according to claim 1,
The FM radio antenna includes:
Using the earphone line as a radiator to operate as an antenna in the FM radio band 88 MHz to 108 MHz
An FM radio antenna for a stereo type wireless headset. delete The method according to claim 1,
The power supply structure includes:
Including a loop resonator
An FM radio antenna for a stereo type wireless headset. A main board;
An auxiliary substrate;
A neckband for connecting the main board and the auxiliary board to each other through a cable including a signal line and a ground line; And
Wherein at least one passive element formed between a feeding point formed on the main board and the neck band,
Including,
A short-range wireless communication antenna is mounted on the main board and is fed by a predetermined electrical connection, and the neckband is operated as an FM radio antenna by using the neckband as a radiator,
The main board further includes a feed structure connected to the feed point, and the feed structure controls the input impedance of the antenna to reduce the size of the FM radio antenna
An FM radio antenna for a stereo type wireless headset. The method according to claim 6,
Wherein the at least one passive element comprises:
Comprising at least one of an inductive element and a capacitive element to adjust the resonant frequency
An FM radio antenna for a stereo type wireless headset. The method according to claim 6,
The FM radio antenna includes:
Operating the antenna in the FM radio band 88 MHz to 108 MHz using the neckband as a radiator
An FM radio antenna for a stereo type wireless headset. delete The method according to claim 6,
Said neckband comprising:
Additional allocation of cables used as FM radio antenna
An FM radio antenna for a stereo type wireless headset.
KR1020150134825A 2015-07-21 2015-09-23 Stereotype FM Radio Antenna for Wireless Headset KR101684174B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101991264B1 (en) * 2018-01-10 2019-06-20 주식회사 이엠따블유 Neck band having radio
KR102076761B1 (en) * 2018-11-26 2020-02-12 한양대학교 산학협력단 Dual-band cable antenna apparatus
US11217950B2 (en) 2018-01-30 2022-01-04 Samsung Electronics Co., Ltd. Apparatus and method for performing antenna function by using USB connector

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KR101991264B1 (en) * 2018-01-10 2019-06-20 주식회사 이엠따블유 Neck band having radio
US11217950B2 (en) 2018-01-30 2022-01-04 Samsung Electronics Co., Ltd. Apparatus and method for performing antenna function by using USB connector
KR102076761B1 (en) * 2018-11-26 2020-02-12 한양대학교 산학협력단 Dual-band cable antenna apparatus

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