TWI491111B - Monopole antenna - Google Patents
Monopole antenna Download PDFInfo
- Publication number
- TWI491111B TWI491111B TW097148403A TW97148403A TWI491111B TW I491111 B TWI491111 B TW I491111B TW 097148403 A TW097148403 A TW 097148403A TW 97148403 A TW97148403 A TW 97148403A TW I491111 B TWI491111 B TW I491111B
- Authority
- TW
- Taiwan
- Prior art keywords
- radiator
- polarized antenna
- bent
- signal feeding
- base
- Prior art date
Links
Landscapes
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
本發明涉及一種天線,尤其涉及一種應用於攜帶型無線通訊裝置上之單極化天線。 The present invention relates to an antenna, and more particularly to a single-polarized antenna applied to a portable wireless communication device.
隨著無線通訊技術、資訊處理技術之迅速發展,行動電話、個人數位助理(personal digital assistant,PDA)等攜帶型無線通訊裝置競相湧現,進入到千家萬戶,使消費者可隨時隨地享受到高科技帶來之種種便利,使得該等攜帶型無線通訊裝置已成為現代人日常生活不可缺少之一部分。 With the rapid development of wireless communication technology and information processing technology, mobile wireless communication devices such as mobile phones and personal digital assistants (PDAs) are competing to enter and reach thousands of households, so that consumers can enjoy high anytime and anywhere. The convenience brought by technology makes these portable wireless communication devices become an indispensable part of modern people's daily life.
於該等無線通訊裝置中,用來發射、接收無線電波以傳遞、交換無線電數據訊號之天線裝置,無疑成為無線通訊裝置中最重要的元件之一。隨著無線通訊裝置之生命週期越來越短以及無線通訊裝置之研發時間變得越來越短,單極化天線被廣泛應用於無線通訊裝置上。然,習知之單極化天線於使用過程中回應較大,不易於調整,通用性不強。 Among these wireless communication devices, an antenna device for transmitting and receiving radio waves to transmit and exchange radio data signals is undoubtedly one of the most important components in a wireless communication device. Single-polarized antennas are widely used in wireless communication devices as the life cycle of wireless communication devices has become shorter and the development time of wireless communication devices has become shorter and shorter. However, the conventional single-polarized antenna has a large response during use, is not easy to adjust, and is not highly versatile.
有鑒於此,有必要提供一種易於調整、通用性較強之單極化天線。 In view of this, it is necessary to provide a single-polarized antenna that is easy to adjust and has high versatility.
一種單極化天線,其佈設於一無線通訊裝置內,用以發射、接收無線電波以傳遞、交換無線電數據訊號;所述單極化天線由金屬 片材彎折而成,其包括一主體、一訊號饋入部、一接地部、一第一輻射體及一第二輻射體;所述主體為一被彎折成“L”形之片狀體,其包括一基體部及一彎折部,該基體部所在平面與該彎折部所在平面垂直;所述訊號饋入部及接地部相對設置於所述主體之基體部之兩端並與所述彎折部位於同一側,所述訊號饋入部與接地部之間的距離可進行調節,以滿足應用於不同之無線通訊環境下;所述第一輻射體及第二輻射體分別為一高頻路徑及一低頻路徑,所述第一輻射體由基體部一側中部位置處向外延伸並朝向遠離該彎折部一側彎折形成,所述第二輻射體由所述彎折部之末端朝向第一輻射體方向延伸彎折形成,且垂直於該基體部所在平面。 A single-polarized antenna disposed in a wireless communication device for transmitting and receiving radio waves to transmit and exchange radio data signals; the single-polarized antenna is made of metal The sheet is bent and includes a main body, a signal feeding portion, a grounding portion, a first radiator and a second radiator; the main body is a sheet body bent into an "L" shape. The base portion and the bent portion are perpendicular to the plane of the bent portion; the signal feeding portion and the ground portion are oppositely disposed at both ends of the base portion of the main body and are The bending portion is located on the same side, and the distance between the signal feeding portion and the ground portion can be adjusted to meet different wireless communication environments; the first radiator and the second radiator are respectively a high frequency a path and a low frequency path, wherein the first radiator extends outward from a central portion of one side of the base portion and is bent toward a side away from the bent portion, and the second radiator is formed by an end of the bent portion The bending is formed toward the first radiator, and is perpendicular to the plane of the base portion.
相較於習知技術,所述單極化天線採用金屬片材彎折而成,其訊號饋入部與接地部之間的距離可進行調節,以滿足應用於不同之無線通訊環境下之需求。該單極化天線結構簡單、於使用過程中回應較小,易於調整、通用性強,可滿足於GSM、DCS及PCS三個通訊系統下工作。 Compared with the prior art, the single-polarized antenna is formed by bending a metal sheet, and the distance between the signal feeding portion and the ground portion can be adjusted to meet the requirements of application in different wireless communication environments. The single-polarized antenna has a simple structure, a small response during use, is easy to adjust, and has strong versatility, and can be used for three communication systems of GSM, DCS and PCS.
30‧‧‧單極化天線 30‧‧‧Single-polarized antenna
31‧‧‧主體 31‧‧‧ Subject
311‧‧‧基體部 311‧‧‧Base Department
313‧‧‧彎折部 313‧‧‧Bends
33‧‧‧信號饋入部 33‧‧‧Signal Feeding Department
35‧‧‧接地部 35‧‧‧ Grounding Department
37‧‧‧第一輻射體 37‧‧‧First radiator
39‧‧‧第二輻射體 39‧‧‧Second radiator
圖1為本發明單極化天線較佳實施例之立體圖。 1 is a perspective view of a preferred embodiment of a single-polarized antenna of the present invention.
圖2為本發明單極化天線較佳實施例之另一視角之立體圖。 2 is a perspective view of another perspective view of a preferred embodiment of a single-polarized antenna of the present invention.
圖3為本發明單極化天線之訊號饋入部與接地部之間的距離為14mm時測得之電磁輻射場型圖。 3 is a view showing the electromagnetic radiation pattern measured when the distance between the signal feeding portion of the single-polarized antenna and the ground portion is 14 mm.
圖4為本發明單極化天線之訊號饋入部與接地部之間的距離為10.5mm時測得之電磁輻射場型圖。 4 is a view showing electromagnetic field patterns measured when the distance between the signal feeding portion of the single-polarized antenna and the ground portion is 10.5 mm.
圖5為本發明單極化天線之訊號饋入部與接地部之間的距離為7mm時測得之電磁輻射場型圖。 Fig. 5 is a view showing the electromagnetic radiation pattern measured when the distance between the signal feeding portion of the single-polarized antenna and the ground portion is 7 mm.
圖6為本發明單極化天線之訊號饋入部與接地部之間的距離為3.5mm時測得之電磁輻射場型圖。 Fig. 6 is a view showing the electromagnetic radiation pattern measured when the distance between the signal feeding portion of the single-polarized antenna and the ground portion is 3.5 mm.
請參閱圖1及圖2,本發明單極化天線30為一由金屬片材彎折而成之立體式天線,其佈設於行動電話、個人數位助理(personal digital assistant,PDA)等攜帶型無線通訊裝置(圖未示)內,用以發射、接收無線電波以傳遞、交換無線電數據訊號。 Referring to FIG. 1 and FIG. 2, the single-polarized antenna 30 of the present invention is a three-dimensional antenna formed by bending a metal sheet, and is disposed on a mobile phone, a personal digital assistant (PDA), and the like. The communication device (not shown) is configured to transmit and receive radio waves to transmit and exchange radio data signals.
請一併參閱圖2,所述單極化天線30包括一主體31、一訊號饋入部33、一接地部35、一第一輻射體37及一第二輻射體39。所述主體31為一被彎折成大致“L”形之片狀體,其包括一基體部311及一彎折部313。該基體部311所於平面與該彎折部313所於平面大致垂直。所述訊號饋入部33及接地部35大致呈圓柱體狀,其相對設置於所述主體31之基體部311之兩端並與所述彎折部313位於同一側。所述訊號饋入部33與接地部35之間的距離可根據實際需求進行調節,以滿足應用於不同之無線通訊環境下。所述訊號饋入部33與接地部35之間的距離優選為GSM通訊系統之1/4λg至DCS或PCS通訊系統之1/2λg,其中λg=(C/4f),C為光速,f為工作頻率。另外,也可以利用天線於電磁輻射場型圖之特性配合其匹配電路,以使該單極化天線30運用於不同之無線通訊環境下,以縮短研發時間和成本,來達成天線之標準化。 As shown in FIG. 2 , the single-polarized antenna 30 includes a main body 31 , a signal feeding portion 33 , a grounding portion 35 , a first radiator 37 , and a second radiator 39 . The main body 31 is a sheet-like body that is bent into a substantially "L" shape, and includes a base portion 311 and a bent portion 313. The plane of the base portion 311 is substantially perpendicular to the plane of the bent portion 313. The signal feeding portion 33 and the ground portion 35 are substantially cylindrical, and are disposed opposite to each other at the both ends of the base portion 311 of the main body 31 and on the same side as the bent portion 313. The distance between the signal feeding portion 33 and the grounding portion 35 can be adjusted according to actual needs to meet the application in different wireless communication environments. The distance between the signal feeding portion 33 and the grounding portion 35 is preferably 1/4 λg of the GSM communication system to 1/2 λg of the DCS or PCS communication system, where λg=(C/4f), C is the speed of light, and f is the work. frequency. In addition, the matching characteristics of the antenna in the electromagnetic radiation pattern can also be used to make the single-polarized antenna 30 be used in different wireless communication environments to shorten the development time and cost to achieve the standardization of the antenna.
所述第一輻射體37為一高頻路徑,其大致呈“L”形片狀。該第一輻射體37由該基體部311一側中部位置處向外延伸並朝向遠離 該彎折部313一側延伸形成並與該基體部311位於同一平面上。於使用過程中,可藉由調節所述訊號饋入部33與接地部35之間的距離以產生一阻抗匹配。所述第二輻射體39為一低頻路徑,其為一被彎折成大致弧形之“U”形片狀體。該第二輻射體39由所述彎折部313之末端朝向第一輻射體37方向延伸彎折形成,並與該第一輻射體37位於同一側。該第二輻射體39垂直於基體部311所於平面。 The first radiator 37 is a high frequency path which is substantially in the shape of an "L". The first radiator 37 extends outward from the central portion of the base portion 311 side and faces away from The bent portion 313 is formed to extend on one side and on the same plane as the base portion 311. During use, an impedance matching can be generated by adjusting the distance between the signal feeding portion 33 and the ground portion 35. The second radiator 39 is a low frequency path which is a "U" shaped sheet body which is bent into a substantially curved shape. The second radiator 39 is formed by bending the end of the bent portion 313 toward the first radiator 37 and is located on the same side as the first radiator 37. The second radiator 39 is perpendicular to the plane of the base portion 311.
所述單極化天線30工作時,射頻訊號自訊號饋入部33進入後,可分別沿所述單極化天線30之第一輻射體37及第二輻射體39傳輸並分別獲得不同長度之傳播路徑,以分別獲得不同之高頻訊號及低頻訊號。 When the single-polarized antenna 30 is in operation, the RF signal is transmitted from the signal feeding portion 33, and can be respectively transmitted along the first radiator 37 and the second radiator 39 of the single-polarized antenna 30 and respectively obtain different lengths of propagation. Path to obtain different high frequency signals and low frequency signals respectively.
請一併參閱圖3~圖6,為所述單極化天線30之訊號饋入部37與接地部39之間的距離分別為14mm、10.5mm、7mm及3.5mm時測得之電磁輻射場型圖。由測試結果可知,所述單極化天線30之頻寬範圍可以涵蓋到GSM、DCS及PCS三個通訊系統,隨著訊號饋入部37與接地部39之間之距離的不斷縮小,該單極化天線30產生之頻寬也不斷縮小。 Please refer to FIG. 3 to FIG. 6 together, and the electromagnetic radiation pattern measured when the distance between the signal feeding portion 37 of the single-polarized antenna 30 and the ground portion 39 is 14 mm, 10.5 mm, 7 mm, and 3.5 mm, respectively. Figure. It can be seen from the test results that the bandwidth of the single-polarized antenna 30 can cover three communication systems of GSM, DCS and PCS. As the distance between the signal feeding portion 37 and the grounding portion 39 is continuously reduced, the monopole The bandwidth produced by the antenna 30 is also continuously reduced.
所述單極化天線30採用金屬片材彎折而成,其訊號饋入部33與接地部35之間的距離可進行調節,以滿足應用於不同之無線通訊環境下。該單極化天線30結構簡單、於使用過程中回應較小,易於調整、通用性強,可滿足於GSM、DCS及PCS三個通訊系統下工作。 The single-polarized antenna 30 is formed by bending a metal sheet, and the distance between the signal feeding portion 33 and the ground portion 35 can be adjusted to meet different wireless communication environments. The single-polarized antenna 30 has a simple structure, a small response during use, is easy to adjust, and has strong versatility, and can be used for working under three communication systems of GSM, DCS and PCS.
綜上所述,本發明符合發明專利要件,爰依法提出專利申請。惟,以上所述者僅為本發明之較佳實施例,本發明之範圍並不以上 述實施例為限,舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化,皆應涵蓋於以下申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not above The equivalents of the embodiments of the present invention are intended to be within the scope of the following claims.
30‧‧‧單極化天線 30‧‧‧Single-polarized antenna
31‧‧‧主體 31‧‧‧ Subject
311‧‧‧基體部 311‧‧‧Base Department
313‧‧‧彎折部 313‧‧‧Bends
33‧‧‧信號饋入部 33‧‧‧Signal Feeding Department
35‧‧‧接地部 35‧‧‧ Grounding Department
37‧‧‧第一輻射體 37‧‧‧First radiator
39‧‧‧第二輻射體 39‧‧‧Second radiator
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW097148403A TWI491111B (en) | 2008-12-12 | 2008-12-12 | Monopole antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW097148403A TWI491111B (en) | 2008-12-12 | 2008-12-12 | Monopole antenna |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201023434A TW201023434A (en) | 2010-06-16 |
TWI491111B true TWI491111B (en) | 2015-07-01 |
Family
ID=44833371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW097148403A TWI491111B (en) | 2008-12-12 | 2008-12-12 | Monopole antenna |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI491111B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI256179B (en) * | 2002-12-16 | 2006-06-01 | Samsung Electro Mech | Wireless LAN antenna and wireless LAN card with the same |
US20060262016A1 (en) * | 2005-05-23 | 2006-11-23 | Hon Hai Precision Ind. Co., Ltd. | Multi-frequency antenna |
TWM335033U (en) * | 2008-01-02 | 2008-06-21 | Cheng Uei Prec Ind Co Ltd | Multi-band antenna |
-
2008
- 2008-12-12 TW TW097148403A patent/TWI491111B/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI256179B (en) * | 2002-12-16 | 2006-06-01 | Samsung Electro Mech | Wireless LAN antenna and wireless LAN card with the same |
US20060262016A1 (en) * | 2005-05-23 | 2006-11-23 | Hon Hai Precision Ind. Co., Ltd. | Multi-frequency antenna |
TWM335033U (en) * | 2008-01-02 | 2008-06-21 | Cheng Uei Prec Ind Co Ltd | Multi-band antenna |
Also Published As
Publication number | Publication date |
---|---|
TW201023434A (en) | 2010-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100253581A1 (en) | Multiband antenna and portable wireless communication device using the same | |
TWI628851B (en) | Multi-band antenna structure | |
US8242961B2 (en) | UWB antenna and portable wireless communication device using the same | |
US8009103B2 (en) | Triple-band antenna | |
US20110181480A1 (en) | Antenna module | |
TWI619314B (en) | Multiple frequency antenna | |
TW201513466A (en) | Antenna structure and wireless communication device using the same | |
TWI619309B (en) | Antenna structure and wireless communication device using same | |
US9728841B2 (en) | Antenna structure and wireless communication device using the antenna structure | |
TWI504066B (en) | Dipole antenna | |
US20090278745A1 (en) | Dual-band inverted-f antenna | |
TWI504067B (en) | Multiband antenna | |
TWI513110B (en) | Antenna module and wireless communication device using the same | |
TWI581509B (en) | Antenna assembly and portable electronic device having same | |
US8094078B2 (en) | Monopole antenna | |
CN109346822B (en) | Dual-radiation-arm WIFI antenna | |
TWI491111B (en) | Monopole antenna | |
TWI553961B (en) | Wireless communication device | |
TWI481118B (en) | Dual band antenna and wireless communication device using the same | |
TWI622224B (en) | Antenna and wireless communication device employing same | |
US8629810B2 (en) | Multiband antenna and portable electronic device using the same | |
US20130093630A1 (en) | Antenna module and wireless communication device | |
TWI508372B (en) | Antenna structure and wireless communication device using the same | |
TW201442334A (en) | Planer inverted F antenna | |
CN102469390B (en) | Loudspeaker device with antenna structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |