CN104617394A - Tunable external antenna and implementation method thereof - Google Patents

Tunable external antenna and implementation method thereof Download PDF

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Publication number
CN104617394A
CN104617394A CN201510019885.4A CN201510019885A CN104617394A CN 104617394 A CN104617394 A CN 104617394A CN 201510019885 A CN201510019885 A CN 201510019885A CN 104617394 A CN104617394 A CN 104617394A
Authority
CN
China
Prior art keywords
external antenna
described
tunable
frequency range
characterized
Prior art date
Application number
CN201510019885.4A
Other languages
Chinese (zh)
Inventor
唐登涛
韦天德
郑虎
Original Assignee
优能通信科技(杭州)有限公司
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 优能通信科技(杭州)有限公司 filed Critical 优能通信科技(杭州)有限公司
Priority to CN201510019885.4A priority Critical patent/CN104617394A/en
Publication of CN104617394A publication Critical patent/CN104617394A/en

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Abstract

The invention discloses a tunable external antenna and an implementation method thereof; the tunable external antenna comprises an external antenna body; one end of the external antenna is connected with a PCB board of a communication terminal, the other end is provided with an expansion port. The implementation method comprises the following steps: reserving an expansion port at the top end of the external antenna; connecting the external antennal with the PCB board of the communication terminal; idling the expansion port, covering a first frequency band by the external antenna; arranging an expansion radiator in the expansion port, covering a second frequency band by the external antenna. The tunable external antenna and the implementation method thereof can cover a plurality of substantially adjacent low frequency bands, thus making the integration of a plurality of high performance low frequency antennas be possible.

Description

A kind of tunable external antenna and its implementation

Technical field

The present invention relates to field of antenna, particularly the tunable external antenna of one and its implementation.

Background technology

Modern communications terminals, to the requirement of different communication standard, makes to need when Antenna Design to cover more frequency range.And for low frequency high-performance external antenna, after usually having designed, it covers frequency range and has just been fixed, the covering frequency range again due to this antenna is limited, can not meet the requirement of wideband, multisystem.

Therefore, existing communication terminal can not integrated multiple high performance low-frequency antenna.

Summary of the invention

The present invention is directed to above-mentioned problems of the prior art, propose a kind of tunable external antenna and its implementation, solving existing communication terminal can not the problem of integrated multiple high performance low-frequency antenna.

For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The invention provides a kind of tunable external antenna, it comprises: external antenna body, and described one end of external antenna body is connected with the pcb board of communication terminal, and the other end is provided with expansion mouth.

Preferably, also comprise expansion radiant body, described expansion radiant body comprises extension blocks and the contiguous block of interconnection, and described contiguous block can be arranged in described expansion mouth, is electrically connected with described external antenna.

Preferably, described extension blocks is metal derby.

Preferably, when described contiguous block is not arranged in described expansion mouth, described external antenna covers the first frequency range; When described contiguous block is positioned at described expansion mouth, described external antenna covers the second frequency range.

Preferably, described first frequency range is 400MHz ~ 450MHz, and now external antenna is LTE antenna; Described second frequency range is 350MHz ~ 390MHz, and now external antenna is PDT antenna, and the present invention can make low-frequency antenna cover 350MHz and 400MHz two low frequency relatively.

Preferably, internal thread is provided with in described expansion mouth.

Preferably, described contiguous block is provided with external screw thread, described external screw thread is corresponding with described internal thread., be threaded connection more stable, be electrically connected effective, antenna performance is good.

Preferably, described external antenna is external whip antenna.

The present invention also provides a kind of implementation method of tunable external antenna, comprises the following steps:

S91: the reserved expansion mouth on the top of external antenna;

S92: external antenna is connected with the pcb board of communication terminal;

S93: described expansion mouth leaves unused, and described external antenna covers the first frequency range;

In described expansion mouth, arrange expansion radiant body, described external antenna covers the second frequency range.

Preferably, step S93 is specially: described expansion mouth leaves unused, and described external antenna covers 400MHz ~ 450MHz frequency range;

In described expansion mouth, arrange expansion radiant body, described external antenna covers 350MHz ~ 390MHz frequency range.Can make antenna cover low frequency frequency range relatively, and antenna performance is good, is with roomy.

Compared to prior art, the present invention has the following advantages:

(1) tunable external antenna provided by the invention and its implementation, at external aerial head reserved expansion mouth, when needed, the expansion radiant body of certain length is loaded by this interface, thus change antenna resonance, reach the demand covering more multiband, be equivalent to be integrated with multiple high performance low-frequency antenna;

(2) utilize tunable external antenna of the present invention, multiple low frequency frequency range relatively can be covered, and antenna performance is good, is with roomy.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiments of the present invention are described further:

Fig. 1 is the structural representation that tunable external antenna of the present invention does not add expansion radiant body;

Fig. 2 is the structural representation that tunable external antenna of the present invention adds expansion radiant body;

Fig. 3 is the flow chart of the implementation method of tunable external antenna of the present invention.

Label declaration: 1-external antenna, 11-expands mouth, 2-PCB plate, and 3-expands radiant body, 31-extension blocks, 32-contiguous block.

Embodiment

Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

embodiment 1:

Be illustrated in figure 1 the structural representation of the tunable external antenna of the present embodiment, composition graphs 1, the present embodiment describes tunable external antenna of the present invention in detail, and it comprises external antenna 1, its one end is connected with the pcb board 2 of communication terminal, and the other end is provided with expansion mouth 11.

In the present embodiment, external antenna 1 is external whip antenna, and it is set to the LTE antenna of covering frequence 400MHz ~ 450MHz, and correspondingly select LTE400MHz antenna at the interface of communication terminal, such user can use this system to communicate.

LTE400MHz antenna performance is as shown in table 1,

Table 1

Frequency (MHz) 400 425 450 Free space efficiency (%) 55.25 61.18 57.86

embodiment 2:

The present embodiment is on the basis of embodiment 1, and external antenna 1 loads expansion radiant body 3, and expansion radiant body 3 comprises extension blocks 31 and contiguous block 32, as shown in Figure 2.Wherein: contiguous block 32 is arranged in expansion mouth 11, and it is electrically connected with external antenna 1, thus extension blocks 31 is electrically connected with external antenna, changes the resonance of antenna.

In the present embodiment, expansion mouth 11 is provided with internal thread, and contiguous block 32 is provided with corresponding external screw thread, and contiguous block 32 screw in expansion mouth 11 with screw form, and be connected firmly, electrical connection properties is good.This is not limitation of the present invention, in different embodiment, the forms such as directly plug also can be adopted to connect.

In the present embodiment, extension blocks 31 is metal derby, and length is d is 25mm, expands to frequency 350MHz to 390MHz, and correspondingly select PDT350MHz antenna (PDT intercom) at communication terminal interface, such user just can use this system to communicate.

PDT350MHz antenna performance is as shown in table 2,

Table 2

Frequency (MHz) 350 375 390 Free space efficiency (%) 50.12 53.64 49.53

In the present embodiment, external antenna can cover 400MHz ~ 450MHz and 350MHz ~ 390MHz two frequency ranges, namely covers two comparison frequencies low frequency frequency range relatively, and as can be seen from table 1, table 2, antenna performance is better, more stable.

In different embodiment, the extension blocks 31 of a series of different length can be set, be used for reaching required covering frequency range.

embodiment 3:

The present embodiment describes the implementation method of tunable external antenna of the present invention in detail: it comprises the following steps:

S91: the reserved expansion mouth 11 on the top of external antenna 1;

S92: external antenna 11 is connected with the pcb board 2 of communication terminal;

S93: expansion mouth 11 leaves unused, and external antenna 1 covers the first frequency range;

In expansion mouth 11, arrange expansion radiant body 3, external antenna covers the second frequency range.

Wherein, step S93 is specially: when described expansion mouth leaves unused, and described external antenna covers 400MHz to 450MHz frequency range;

When arranging extension blocks in described expansion mouth, described external antenna covers 350MHz to 390MHz frequency range.

Disclosed herein is only the preferred embodiments of the present invention, and this specification is chosen and specifically described these embodiments, and being to explain principle of the present invention and practical application better, is not limitation of the invention.The modifications and variations that any those skilled in the art do within the scope of specification, all should drop in scope that the present invention protects.

Claims (10)

1. a tunable external antenna, is characterized in that, comprising: external antenna body, and one end of described external antenna connects the pcb board of communication terminal, and the other end is provided with expansion mouth.
2. tunable external antenna according to claim 1, is characterized in that, also comprises expansion radiant body, and described expansion radiant body comprises extension blocks and the contiguous block of interconnection, and described contiguous block can be arranged in described expansion mouth, is electrically connected with described external antenna.
3. tunable external antenna according to claim 2, is characterized in that, described extension blocks is metal derby.
4. tunable external antenna according to claim 2, is characterized in that, when described contiguous block is not arranged in described expansion mouth, described external antenna covers the first frequency range;
When described contiguous block is positioned at described expansion mouth, described external antenna covers the second frequency range.
5. tunable external antenna according to claim 4, is characterized in that, described first frequency range is 400MHz ~ 450MHz; Described second frequency range is 350MHz ~ 390MHz.
6. tunable external antenna according to claim 2, is characterized in that, is provided with internal thread in described expansion mouth.
7. tunable external antenna according to claim 6, is characterized in that, described contiguous block is provided with external screw thread, and described external screw thread is corresponding with described internal thread.
8. the tunable external antenna according to any one of claim 1 to 7, is characterized in that, described external antenna is external whip antenna.
9. an implementation method for tunable external antenna, is characterized in that, comprises the following steps:
S91: the reserved expansion mouth on the top of external antenna;
S92: external antenna is connected with the pcb board of communication terminal;
S93: described expansion mouth leaves unused, and described external antenna covers the first frequency range;
In described expansion mouth, arrange expansion radiant body, described external antenna covers the second frequency range.
10. the implementation method of tunable external antenna according to claim 9, it is characterized in that, step S93 is specially: described expansion mouth leaves unused, and described external antenna covers 400MHz ~ 450MHz frequency range;
In described expansion mouth, arrange expansion radiant body, described external antenna covers 350MHz ~ 390MHz frequency range.
CN201510019885.4A 2015-01-15 2015-01-15 Tunable external antenna and implementation method thereof CN104617394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201510019885.4A CN104617394A (en) 2015-01-15 2015-01-15 Tunable external antenna and implementation method thereof

Publications (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379298A (en) * 1981-07-20 1983-04-05 Pal International Tunable citizen band antenna
CN2084234U (en) * 1990-11-20 1991-09-04 中国刑事警察学院 Special aerial for intercom capable of precision tuning
WO2006030708A1 (en) * 2004-09-14 2006-03-23 Murata Manufacturing Co., Ltd. Frequency variable antenna and wireless communication apparatus
CN203398270U (en) * 2013-09-09 2014-01-15 东莞积信制造有限公司 Short-wave whip-shaped double-frequency antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379298A (en) * 1981-07-20 1983-04-05 Pal International Tunable citizen band antenna
CN2084234U (en) * 1990-11-20 1991-09-04 中国刑事警察学院 Special aerial for intercom capable of precision tuning
WO2006030708A1 (en) * 2004-09-14 2006-03-23 Murata Manufacturing Co., Ltd. Frequency variable antenna and wireless communication apparatus
CN203398270U (en) * 2013-09-09 2014-01-15 东莞积信制造有限公司 Short-wave whip-shaped double-frequency antenna

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Application publication date: 20150513

RJ01 Rejection of invention patent application after publication