TW200532987A - Dual-band inverted-F antenna with a shorted parasitic element - Google Patents
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- 230000003071 parasitic effect Effects 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 claims description 221
- 229910052751 metal Inorganic materials 0.000 claims description 221
- 230000005855 radiation Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
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- 238000005259 measurement Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 101100048435 Caenorhabditis elegans unc-18 gene Proteins 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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200532987 五、發明說明（1) 【發明所屬之技術領域】 本發明係有關於一種雙頻倒F形天線（D u a 1 - b a n d inverted-F antenna)，特別是應用在無線通訊產品上的 雙頻倒F形天線。 【先前技術】 隨著無線通訊的發展，無線區域網路（w i r e 1 e s s 1 〇 c a 1 a r e a n e t w o r k)的應用越來越廣泛，因此天線的性 能便成為影響產品價值的重要關鍵之一。目前習用於無線 通訊產品的雙頻倒F形天線（如第1圖）大都只能操作於部 分雙頻（如第2圖；滿足2· 4及5_ 2 GHz頻帶或滿足2. 4及 5 . 8 G Η z頻帶），無法完全涵蓋目前無線區域網路所需之 2.4 GHz ( 2.4-2.484 GHz)、及 5 GHz頻帶〔包含 5·2 GHz 頻帶（5·15-5·35 GHz)及 5·8 GHz頻帶（5.7 2 5-5.8 75 GHz)〕；台灣專利公告第563, 2 74號π雙頻天線”，其揭示 一種利用筆記型電腦液晶螢幕内建的接地面，在該接地面 上設計倒F形天線的例子，不過該天線雖適用於2 . 4 GHz、 5 GHz(包含5.2、5.8 GHz)雙頻帶操作之無線區域^ 系統’但高頻頻寬僅勉強包含5.2、5.8 GHz之頻、 天線量產時，#製作上之可允許誤差低。為解決： 2 · 4 G Η z頻帶’更可在高頻操作頻帶產生一 態，進而達到約2 GHz之操作頻寬，H、$，共振模 t易地涵盍無線區域 創…，……低頻操作頻帶涵】1:區天二的路200532987 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a dual-band inverted-F antenna (D ua 1-band inverted-F antenna), especially a dual-frequency used in wireless communication products. Inverted F-shaped antenna. [Previous technology] With the development of wireless communication, the application of wireless local area network (wier e 1 e s s 1 0 c a 1 a r e a n e t w o r k) is becoming more and more widespread, so the performance of the antenna has become one of the important keys that affect the value of the product. Most of the dual-frequency inverted-F antennas currently used in wireless communication products (such as Figure 1) can only operate on some dual-frequency (such as Figure 2; meet the 2.4 and 5_ 2 GHz bands or meet 2.4 and 5). 8 G Η z band), which cannot fully cover the 2.4 GHz (2.4-2.484 GHz) and 5 GHz bands (including the 5 · 2 GHz band (5 · 15-5 · 35 GHz) and 5 required by current wireless LANs · 8 GHz band (5.7 2 5-5.8 75 GHz)]; Taiwan Patent Bulletin No. 563, 2 74 π dual-band antenna ", which discloses a ground plane built into the LCD screen of a notebook computer, on which An example of designing an inverted-F antenna, although the antenna is suitable for a wireless region operating in 2.4 GHz and 5 GHz (including 5.2 and 5.8 GHz) dual-band systems ^ but the high-frequency bandwidth barely includes the frequencies of 5.2 and 5.8 GHz When the antenna is mass-produced, the permissible error in # production is low. In order to solve: 2 · 4 G 频带 z-band 'can produce a state in the high-frequency operating band, and then reach an operating bandwidth of about 2 GHz, H, $ , The resonance mode t simplifies the wireless region creation ..., ... the low-frequency operating frequency band culvert] 1: The road of the district Tian Er
200532987 五、發明說明（2) 網路5 GHz(包含5. 2及5.8 GHz頻帶）之頻帶操作需 大幅提升量產時本發明天線製作上的可容許誤差。 :發明内容】 如上所述，本發明之目的在於提供一種具有寄生短 孟屬臂之雙頻倒F形天線的創新設計，不僅可產生一低 操作=帶涵蓋無線區域網路2· 4 GHz頻帶，更可在高頻操 作=V產生一額外之共振模態，進而達到約2 G k之操作 頻X ’輕易地涵蓋無線區域網路5 g.Hz (包含5 · 2及5. 8 GHz頻帶）之頻帶操作需求。本發明天線包含··一接地面 ，其形狀大致為一矩形，而在該接地面之一邊緣，該接地 #，位於該接地面之一邊緣上方，該T开^轄 二一第一輻射金屬臂，大致平行於該接地面 ，二輻射金屬臂，大致平行於該接地面之該 第 輪射金層臂之相反方向延伸，同時該第 之長度短於該第一輻射金屬臂之長度；及一 # ’大致垂直於該接地面之該邊緣，並藉由 ，^屬臂與該第二輻射金屬臂形成該τ形輻 5亥第三輻射金屬臂包含一饋入點；一短路金 ^致為一倒L形，位於該Τ形輻射金屬臂之該 f與垓接地面之間，一端連接至該τ形輻射 幸:射金屬臂之該饋入點，另一端連接至該 知1路點，用以將該τ形輻射金屬臂電氣連 面，具有一第一短路點、一第二短路點與一接地點；一不 稱饰轉射金屬- 射金屬臂包含 之該邊緣；一 邊緣且朝與該 一輪射金屬臂 第二輕射金屬 連接該第一輻 射金屬臂，且 屬臂，其形狀 第一輻射金屬 金屬臂之該第 接地面之該第200532987 V. Description of the invention (2) The operation of the frequency band of the 5 GHz network (including the 5.2 and 5.8 GHz frequency bands) needs to significantly increase the allowable error in the production of the antenna of the present invention during mass production. : Summary of the invention As mentioned above, the object of the present invention is to provide an innovative design of a dual-frequency inverted F-shaped antenna with a parasitic short Monsoon arm, which can not only produce a low operation = band covering the wireless LAN 2 · 4 GHz band In addition, an additional resonance mode can be generated at high-frequency operation = V, and then an operating frequency X of about 2 G k can be easily covered by the wireless local area network 5 g.Hz (including 5 · 2 and 5. 8 GHz bands). ) Band operation requirements. The antenna of the present invention includes a ground plane whose shape is substantially rectangular, and at one edge of the ground plane, the ground # is located above one edge of the ground plane. The arm is substantially parallel to the ground plane, and the two radiating metal arms extend substantially parallel to the ground-opposing gold-plating arm in opposite directions, and the length of the first radiating metal arm is shorter than the length of the first radiating metal arm; and A # 'is substantially perpendicular to the edge of the ground plane, and by the metal arm and the second radiating metal arm forming the τ-shaped spokes. The third radiating metal arm includes a feeding point; a short circuit It is an inverted L-shape, located between the f and 垓 ground plane of the T-shaped radiating metal arm, and one end is connected to the τ-shaped radiating beam: the feeding point of the shooting metal arm, and the other end is connected to the known 1-way point For electrically connecting the τ-shaped radiating metal arm with a first short-circuit point, a second short-circuit point, and a ground point; an edge that is not referred to as a transmissive metal-radiating metal arm; an edge and Towards the second light-shot metal with the one-shot metal arm connected to the first Metal shot arm, and the arm genus, the shape of the metal of the metal arm of the first radiation to the first surface of the ground
200532987 五、發明說明（3) 接至該接地面；一寄生短路金屬臂，其形狀大致為一倒L 形’位於該T形輪射金屬臂之該第二輻射金屬臂與該接地 面之間，且该寄生短路金屬臂具有一起始端及一末端，該 起始端 行於該 路金屬 幸虽射金 之相反 包含： 第三輻 該接地 在 之長度 成該天 與該第 振模態 屬臂之 屬臂之 線之該 短路金 配；另 接地面 般小於 金屬臂 大致垂直連接至該接地面之該第二短路點且大致平 J形輻射金屬臂之該第三輻射金屬臂，而該寄生短 臂之該末端大致平行於該了形輻射金屬臂之該第二 屬臂且朝與該T形輻射金屬臂之該第一輻射金屬臂 方向延=’·及一饋入同軸傳輸線，用以傳輸訊號， 中心導線，連接至該不對稱τ形輻射金屬臂之該 射金屬臂之該饋入點；及一外層接地導體，連接至 面之該接地點。 本，设計中，我們可以藉由調整該第一輻射金屬臂 ，传到適當的第一共振模態，而該第一共振模能形 線之較低操作頻帶，且該第一輻射金屬臂之長^， 三輻射金屬臂之長度之和，接近該天線之該第二共 中心頻率之1/4波長；以及藉由調整該第二輻射金、 長度，得到適當的第二共振模態，而該第二輻射金 =度丘i f第三輕射金屬臂之長度之和，接近該天 弟一共振模態中心頻率之1/4波長；並藉由調整該 屬臂之長度與該第一短路點之位置，得到良好 外藉=調整該寄生短路金屬臂之長度，同時調整該 之°亥第一短路點與該接地面之該接地點之距離（一 5 mra) ’得到適當的第三共振模態，而該寄生短I 之長度，接近該天線之該第三共振模態中心頻率之200532987 V. Description of the invention (3) Connected to the ground plane; a parasitic short-circuited metal arm, which is roughly an inverted L-shape, 'is located between the second radiating metal arm of the T-shaped shot metal arm and the ground plane And the parasitic short-circuited metal arm has a starting end and an end, the starting end running on the road, but the opposite of metal injection, including: the length of the third spoke that the ground is in that day and the first vibration mode belongs to the arm The short-circuit metal fitting that belongs to the arm's line; the other ground plane is generally smaller than the third radiating metal arm of the third radiating metal arm that is substantially perpendicular to the second short-circuit point of the ground plane and is substantially flat to the J-shaped radiating metal arm. The end of the arm is substantially parallel to the second genus arm of the radiating metal arm and extends toward the first radiating metal arm of the T-shaped radiating metal arm = '· and a coaxial transmission line is fed for transmission A signal, a center wire, connected to the feed point of the radiating metal arm of the asymmetric τ-shaped radiating metal arm; and an outer ground conductor connected to the ground point of the surface. In the design, we can adjust the first radiating metal arm to the appropriate first resonance mode, and the lower operating frequency band of the first resonance mode shape line, and the first radiating metal arm The length ^, the sum of the lengths of the three radiating metal arms is close to the quarter wavelength of the second common center frequency of the antenna; and an appropriate second resonance mode is obtained by adjusting the second radiating gold and length, And the second radiating gold = the sum of the length of the third light-emitting metal arm of Dou Qiu, which is close to the 1/4 wavelength of the center frequency of the resonance mode of the heavenly brother; and by adjusting the length of the arm and the first The position of the short-circuit point is well loaned = adjust the length of the parasitic short-circuit metal arm, and adjust the distance between the first short-circuit point and the ground point of the ground plane (5 mra) 'to obtain an appropriate third Resonance mode, and the length of the parasitic short I is close to the center frequency of the third resonance mode of the antenna
第12頁 200532987 五、發明說明（4) ^一 ， 1/4波長；因此，本發明天線於5 GHz之操 结合前述所產生一額外之共振模態「楚二u頒π下，藉由 共振模態）與第 ，，，〜A I犋恶〔第三共振# ς振模態，形成該天線之較高操作頻帶，^ I達到約2 GHZ之操作頻寬，使得一般倒F形生—頻 GHz頻帶得到較寬的操作頻寬的問題獲得改美怎軚難於5 地涵蓋無線區域網路5 GHz(包含5·2及5.8。輕易 頻帶操作需求。 GHz頻τ )之Page 12 200532987 V. Description of the invention (4) ^ 1, 1/4 wavelength; Therefore, the operation of the antenna of the present invention at 5 GHz combined with the foregoing generates an additional resonance mode "under the award of Chu Er u, by resonance Modal) and first ,,, ~ AI 犋 evil [third resonance # Vibration mode, forming the higher operating frequency band of the antenna, ^ I reaches an operating bandwidth of about 2 GHZ, making the general inverted F-shaped bio-frequency The problem of getting a wider operating bandwidth in the GHz band is how difficult it is to improve the United States. It is difficult to cover the 5 GHz wireless LAN network (including 5.2 and 5.8. Easy band operation requirements. GHz frequency τ)
【實施方式】 參考第3圖，本發明之具有寄生短路金屬臂雜 ，線一實施例3包括：一接地面或筆記型電腦液^螢篡兩 (LCD)之支撐金屬背板33，其形狀大致 Ba ^地面之-邊緣334,該接地面具有一第—短二 第二短路點332與一接地點333; 一不對稱 以’位於該接地面之-邊緣334上射人金/臂 包含：-第-…屬臂341，大：平==屬臂3 、息从。。 又卞订於该接地面之該 么緣334·’ 一第二輻射金屬臂342，大致平行於該接地[Embodiment] Referring to FIG. 3, a parasitic short-circuited metal arm of the present invention, a third embodiment of the wire includes: a ground plane or a notebook computer liquid ^ LCD metal support 33, its shape Roughly Ba ^ ground-edge 334, the grounding mask has a first-short-second short-circuit point 332 and a grounding point 333; an asymmetrical shot on the edge-edge 334 of the ground plane includes gold / arm: -Th -... belongs to arm 341, big: flat == belongs to arm 3, interest from. . And a second radiating metal arm 342 which is fixed at the edge 334 · ’of the ground plane, and is substantially parallel to the ground plane.
该邊緣3 3 4且朝與該第一輻射金屬臂 … 之 η 士 至屬I 3 4 1之相反方向延伸， 同％該第二輻射金屬臂342之長产輛於兮# 甲 川之長度；及一第三輻射金；该大弟;:？金屬臂 ;> 4 0 4 3，大致垂直於該接地 面^该邊緣3 34,並藉由連接該第一輻射金屬臂341與該第 射金屬臂342形成該Τ形輻射金屬臂 金屬臂34 3包含一饋入點344; —短Q ΐ 一射 短路金屬臂3 5，其形狀大The edge 3 3 4 extends in the opposite direction from η to I 3 4 1 of the first radiating metal arm, the same length as the length of the second radiating metal arm 342 produced in Yuxi # 甲 川; and A third radiation gold; the big brother;:? Metal arm; 4 0 4 3, approximately perpendicular to the ground plane ^ the edge 3 34, and the T-shaped radiating metal arm metal arm 34 is formed by connecting the first radiating metal arm 341 and the first radiating metal arm 342 3 contains a feed point 344; — short Q ΐ a shot short-circuited metal arm 3 5, its shape is large
200532987 五、發明說明（5) 致為一倒L形，位於該T形輻射金屬臂3 4之該第—輕射金屬 臂3 4 1與該接地面3 3之間，一端連接至該τ形輻射金屬 ^ 之該第三輻射金屬臂343之該饋入點344，另一端連^至^ 接地面3 3之該第一短路點3 3 1，用以將該τ形輻射金屬^ ^ 電氣連接至該接地面33; —寄生短路金屬臂36，其开3 致為一倒L形，位於該Τ形輻射金屬臂34之該第二輻i入 臂3 4 2與該接地面3 3之間，且該寄生短路金屬臂3 6具有“一蜀 起始端361及一末端362’該起始端361大致垂直連接二 接地面3 3之該第二短路點3 3 2且大致平行於該了形_ ^ 臂34之該第三輕射金屬臂343,而該寄生短路金屬二' 該末端3 6 2大致平行於該T形輻射金屬臂34之該第二之 屬臂342且朝與該T形輻射金屬臂34之該第一輻射:^ g金 341之相反方向延伸；及一饋入同軸傳輸線37，用以 ，號’包含：-中心導線371 ’連接至該不對稱τ形輕射輸全 屬臂34之該第三輻射金屬臂343之該饋入點344:及一 接地導體372,連接至該接地面33之該接地點333。在本^ 施例3中，該接地面33、該τ形輻射金屬臂34、該短 屬 臂35與該寄生短路金屬臂36,是在單一金屬片上、冲舞，，屬200532987 V. Description of the invention (5) It is an inverted L-shape, located between the first light-emitting metal arm 3 4 1 and the ground plane 3 3 of the T-shaped radiating metal arm 3 4, and one end is connected to the τ-shape The other end of the feeding point 344 of the third radiating metal arm 343 of the radiating metal ^ is connected to the first short-circuit point 3 3 1 of the ground plane 33 to electrically connect the τ-shaped radiating metal ^ ^ To the ground plane 33;-a parasitic short-circuited metal arm 36, which is opened in an inverted L-shape, is located between the second spoke arm 3 4 2 of the T-shaped radiating metal arm 34 and the ground plane 3 3 And the parasitic short-circuited metal arm 36 has "a starting end 361 and an end 362 ', and the starting end 361 is substantially perpendicularly connected to the second short-circuit point 3 3 2 of the two ground planes 3 3 and is substantially parallel to the shape_ ^ The third light-emitting metal arm 343 of the arm 34, and the parasitic short-circuit metal two 'the end 3 6 2 is substantially parallel to the second belonging arm 342 of the T-shaped radiation metal arm 34 and radiates toward the T-shaped radiation The first radiation of the metal arm 34: ^ g gold 341 extends in the opposite direction; and a coaxial transmission line 37 is fed for the number 'including:-the center wire 371' is connected to the The symmetrical τ-shaped light transmission is all the feed point 344 of the third radiating metal arm 343 of the arm 34 and a ground conductor 372 connected to the ground point 333 of the ground plane 33. In this embodiment 3 The ground plane 33, the τ-shaped radiating metal arm 34, the short genus arm 35, and the parasitic short-circuit metal arm 36 are on a single metal sheet,
St㈣ping)或切割（cutting)製作而成。 土 第4圖是本發明天線_每# y 0 旲·太與爹如q士 ^ 貝靶例3的返回損失實驗量測結 撑今属办& θ θ 犋蚨聿屺型每胸液晶螢幕（LCD)之支 撐孟屬月板％境，我們選擇該接地面33苴 % ^ Ftf1 4ih Ηχ Ο Π Π /、長1 度、、、勺為 2 6 0 ΙΠΙΠ 无度、々為200 mm;該τ形輻射金屬臂 mm 該T形輻射金屬臂 臂341其長度約為27 mm、寬度為 4弟輻射盘屬St㈣ping) or cutting. Figure 4 is the antenna of the present invention. Every # y 0 旲 · Tai and Da Ru q q ^ The return loss experimental measurement of target example 3. This is a & θ θ 犋 蚨 聿 屺 type LCD screen per chest The support of the LCD belongs to the Men's Moon. We choose this ground plane 33 苴% ^ Ftf1 4ih Ηχ Ο Π /, length 1 degree,, spoon, 2 6 0 ΙΠΙΠ no degree, 々 200 mm; the τ Radiation metal arm mm The T-shaped radiation metal arm 341 has a length of about 27 mm and a width of 4
200532987200532987
五、發明說明（6) 之該第二輻射金屬臂342其長度約為ι〇· 5 mm、寬度為i ，咸輪射金屬臂之該第三輻射金屬臂3 4 3其長度&為3 m mm、寬度為1 mm;;該短路金屬臂35其長度:為 寬度為1 mm;該寄生短路金屬臂36其長度約為12 * 度為1 mm，而該接地面之該第二短路點3 32與該接地， 該接地點3 33之距離為5 mm。由所得實驗結果， =小於10 _定義下，其第一共振模態或較低操= GHzC 2.4-2.484 GHz) ^ ^ <，而藉由結合耵述所產生一額外之共振模能422 ('、 共振模態）與第二共振模態421，形成該天線：較： 頻帶42，其具有一約2 GHz之操作頻寬，可以輕易::j GHz ( 5.15-5.35' 5 725-5 875 GHz) ^ 啦盍5 帶。 b· iZ5 GHz)之無線區域網路頻 弟5圖為本發明天線一實施例3在平面（孟 及x-y平面（水平面；假設地面平行於 〇直面） itj ) 9 a λ c, MHz的天線輻射場型量測結果；第6圖為本發明天線一 例3在X _ z平面（垂直面）及X - y平面（水伞 、、、 貫施 箏打於x-y平面）於5 5 0 0 MHz的天線輻射場型旦、=也面 由量測結果可知，天線的主極化輻射均呈現$測結果。 特性，且在x-y平面（水平面）產生大致為入^直極化（E0 : 場型，滿足無線區域網路系統之操作需求、。向丨生軲射之 弟7圖為本發明天線一實施例於較低操 ， G Η z)之增益實驗量測結果。由量測結果可知頻f ( 2 · 4 頻帶（2. 4〜2. 484 GHz)之天線增益約Α 9 ° ’較低操作 、 心5 dBi，滿足V. Description of the invention (6) The second radiating metal arm 342 has a length of about 0.5 mm and a width i, and the third radiating metal arm 3 4 3 has a length & of 3 m mm, width is 1 mm; the length of the short-circuited metal arm 35 is 1 mm in width; the length of the parasitic short-circuited metal arm 36 is about 12 * degree is 1 mm, and the second short-circuit point of the ground plane The distance between 3 32 and the ground, and the ground point 3 33 is 5 mm. From the obtained experimental results, = its definition is less than 10 _, its first resonance mode or lower operation = GHzC 2.4-2.484 GHz) ^ ^ < and an additional resonance mode energy 422 ( ', Resonance mode) and the second resonance mode 421 to form the antenna: Compared to: Band 42, which has an operating bandwidth of about 2 GHz, can be easily :: j GHz (5.15-5.35' 5 725-5 875 GHz) ^ La 盍 5 band. b · iZ5 GHz) The wireless antenna network frequency diagram 5 is an embodiment 3 of the antenna of the present invention in the plane (Meng and xy plane (horizontal plane; assuming that the ground is parallel to the 0 plane) itj) 9 a λ c, MHz antenna radiation Field-type measurement results; Figure 6 shows an example of the antenna of the present invention 3 in the X_z plane (vertical plane) and the X-y plane (water umbrella, ,, and zheng playing on the xy plane) at 5 500 MHz The antenna radiation field type, == can also be seen from the measurement results, the antenna's main polarized radiation all show $ measurement results. Characteristics, and produces approximately in-line polarization (E0: field type in the xy plane (horizontal plane)), which meets the operating requirements of wireless local area network systems. Figure 7 shows an embodiment of the antenna of the invention In lower operation, G Η z) gain experimental measurement results. From the measurement results, it can be known that the antenna gain of the frequency f (2.4 band (2.4 to 2.484 GHz) is about Α 9 ° ′.
200532987 五、發明說明（7) 無線£域網路系統之操作需^长 第8圖為本發明天線_每 5· 2及5· 8 GHz)之増益實驗^也例於較高操作頻帶（包含 較高操作頻帶（5. 1 5〜5 . /則結果。由量測結果可知， 5· 6 dBi，滿足無線區域網/ GHz)之天線增益約為4· 5〜 第9圖為本發明天線之复之操作需求。 包括：一接地面或筆記型+、貫施例結構圖。本實施例7 背板73，其形狀大致為一 =7液晶螢幕（LCD)之支撐金屬 7 34,該接地面具有一第而在該接地面之一邊緣 與一接地點7 3 3 ; —不對稱τ 2 7 3 1、一第二短路點7 3 2 面之一邊緣734上方，該挪，，射金屬臂74，位於該接地 射金屬臂741，大致平行於該鸯$ 4匕s 弟幸田 土- μ入η辟「, 0 丄 茨接地面之該邊緣7 3 4 ; —第二 輻射金屬臂7 4 2，大致平行於呤 斤 ^ ^ ^ 4々、孩接地面之該邊緣734且朝與 Ϊ二t 丨之ί反方向延伸，同時該第二輻射 金屬# 2之長度短於該第一輻射金屬臂741之長度；及一 第=輪射金屬臂7 4 3，大致垂直於該接地面之該邊緣7 3 4， 並藉由連接该第一輪射金屬臂741與該第二輻射金屬臂742 形成該Τ形輻射金屬臂7 4，且該第三輻射金屬臂7 4 3包含一 饋入點744 ; —短路金屬臂75，其形狀大致為一倒l形，位 於該Τ形輻射金屬臂7 4之該第一輻射金屬臂7 4 1與該接地面 7 3之間，一端連接至該Τ形輻射金屬臂7 4之該第三輻射金 屬臂7 4 3之該饋入點744’另一端連接至該接地面7 3之該第 一短路點73 1，用以將該Τ形輻射金屬臂74電氣連接至該接 地面7 3 ; —寄生短路金屬臂7 6，其形狀大致為一倒L形，200532987 V. Description of the invention (7) The operation of wireless LAN system needs to be long. Figure 8 shows the beneficial experiment of the antenna of the present invention _ every 5 2 and 5 8 GHz. It is also exemplified in higher operating frequency bands (including Higher operating frequency band (5. 1 5 ~ 5. / Results. From the measurement results, we know that the antenna gain of 5.6 dBi, which meets the wireless local area network / GHz) is about 4.5 · 5 ~ Figure 9 shows the antenna of the present invention Repeated operation requirements. Including: a ground plane or a note type, and the structure diagram of the embodiment. The back plate 73 of this embodiment 7 is approximately the shape of a supporting metal 7 34 of the liquid crystal screen (LCD). The ground has a first and a ground point 7 3 3 on one edge of the ground plane; asymmetric τ 2 7 3 1 and a second short-circuit point 7 3 2 above one edge 734 of the plane. The arm 74, which is located on the ground-emitting metal arm 741, is substantially parallel to the 鸯 $ 4 dagger, Kosuda soil-μ 入 ηη, 0, the edge 7 3 4 of the ground plane;-the second radiating metal arm 7 4 2, approximately parallel to the base ^ ^ ^ 4々, the edge 734 of the ground plane extends in a direction opposite to the direction of t 二 t 丨, while the second radiation metal # 2 之The length is shorter than the length of the first radiating metal arm 741; and a first = radiating metal arm 7 4 3 is substantially perpendicular to the edge 7 3 4 of the ground plane, and is connected to the first radiating metal arm 741 And the second radiating metal arm 742 form the T-shaped radiating metal arm 7 4, and the third radiating metal arm 7 4 3 includes a feeding point 744; a short-circuiting metal arm 75, which is approximately an inverted l-shape, Located between the first radiating metal arm 7 4 1 and the ground plane 7 3 of the T-shaped radiating metal arm 7 4, one end is connected to the third radiating metal arm 7 4 3 of the T-shaped radiating metal arm 7 4 The other end of the feeding point 744 'is connected to the first short-circuit point 73 1 of the ground plane 7 3 for electrically connecting the T-shaped radiating metal arm 74 to the ground plane 7 3;-a parasitic short-circuit metal arm 7 6 , Its shape is roughly an inverted L-shape,
第16頁 200532987 五、發明說明（8) 位於該T形輻射金屬臂7 4之該第二輻射金屬臂7 4 2與該接地 面7 3之間，且該寄生短路金屬臂7 6具有一起始端7 6 1及一 末端762，該起始端761大致垂直連接至該接地面73之該第 二短路點7 3 2且大致平行於該T形輻射金屬臂7 4之該第三輻 射金屬臂743，而該寄生短路金屬臂7 6之該末端76 2大致平 行於該T形輻射金屬臂7 4之該第二輻射金屬臂7 4 2且朝與該 T形輻射金屬臂74之該第一輻射金屬臂74 1之相反方向延伸 ;及一饋入同軸傳輸線7 7，用以傳輸訊號，包含··一中心 導線771，連接至該不對稱T形輻射金屬臂74之該第三輻射 金屬臂743之該饋入點744 ;及一外層接地導體772，連接 至該接地面7 3之該接地點7 3 3。在本實施例7中，該接地面 7 3、該Τ形輻射金屬臂7 4、該短路金屬臂7 5與該寄生短路 金屬臂76，由印刷或蝕刻技術形成於一微波基板78上。 第1 0圖為本發明天線之其他實施例結構圖。本實施例 8包括：一接地面或筆記型電腦液晶螢幕（LCD)之支撐金屬 背板8 3 ’其形狀大致為一矩形，而在該接地面之一邊緣 8 3 4，該接地面具有一第一短路點8 3 1、一第二短路點8 3 2 與一接地點8 3 3 ; —不對稱τ形輻射金屬臂8 4，位於該接地 面之一邊緣8 3 4上方，該不對稱τ形輻射金屬臂8 4包含：一 第一輻射金屬臂8 4 1，大致平行於該接地面之該邊緣8 3 4 ; 一第二輪射金屬臂842，大致平行於該接地面之該邊緣834 且朝與該第一輻射金屬臂8 4 1之相反方向延伸，同時該第 二輻射金屬臂8 4 2之長度短於該第一輻射金屬臂8 4 1之長度 ;及一第三輻射金屬臂843，大致垂直於該接地面之該邊Page 16 200532987 V. Description of the invention (8) is located between the second radiating metal arm 7 4 2 and the ground plane 7 3 of the T-shaped radiating metal arm 7 4, and the parasitic short-circuiting metal arm 7 6 has a starting end 7 6 1 and an end 762, the starting end 761 is substantially vertically connected to the second short-circuit point 7 3 2 of the ground plane 73 and is substantially parallel to the third radiating metal arm 743 of the T-shaped radiating metal arm 74, The end 76 2 of the parasitic short-circuit metal arm 76 is substantially parallel to the second radiation metal arm 7 4 2 of the T-shaped radiation metal arm 74 and faces the first radiation metal of the T-shaped radiation metal arm 74. The arm 74 1 extends in the opposite direction; and a coaxial transmission line 7 7 is used to transmit the signal, including a central wire 771 connected to the third radiating metal arm 743 of the asymmetric T-shaped radiating metal arm 74 The feed point 744 and an outer ground conductor 772 are connected to the ground point 7 3 3 of the ground plane 7 3. In this embodiment 7, the ground plane 7 3, the T-shaped radiating metal arm 74, the short-circuiting metal arm 75, and the parasitic short-circuiting metal arm 76 are formed on a microwave substrate 78 by a printing or etching technique. FIG. 10 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 8 includes: a ground plane or a supporting metal back plate 8 3 ′ of a liquid crystal display (LCD) of a notebook computer. The shape is approximately a rectangle, and at one edge 8 3 4 of the ground plane, the ground mask has a A first short-circuit point 8 3 1, a second short-circuit point 8 3 2 and a ground point 8 3 3; an asymmetric τ-shaped radiating metal arm 8 4, which is located above an edge 8 3 4 of the ground plane, the asymmetry The τ-shaped radiating metal arm 8 4 includes: a first radiating metal arm 8 4 1, which is substantially parallel to the edge 8 3 4 of the ground plane; a second shot metal arm 842, which is substantially parallel to the edge of the ground plane 834 and extends in a direction opposite to the first radiating metal arm 8 4 1, while the length of the second radiating metal arm 8 4 2 is shorter than the length of the first radiating metal arm 8 4 1; and a third radiating metal Arm 843, substantially perpendicular to the side of the ground plane
第17頁 200532987 五、發明說明（9) 緣8 3 4，並藉由連接該第一輻射金屬臂8 4 1與該第二輻射金 屬臂8 4 2形成該不對稱T形輻射金屬臂8 4，且該第三輻射金 屬臂843包含一饋入點844; —短路金屬臂85，其形狀大致 為一倒L形，位於該不對稱T形輻射金屬臂8 4之該第一輻射 金屬臂8 4 1與該接地面8 3之間，一端連接至該不對稱掷輻 射金屬臂8 4之該第三輻射金屬臂8 4 3之該饋入點8 4 4，另一 端連接至該接地面8 3之該第一短路點8 3 1，用以將該不對 稱T形輻射金屬臂8 4電氣連接至該接地面8 3 ; —寄生短路 金屬臂8 6，其形狀大致為一倒l形，位於該不對稱τ形輻射 金屬臂8 4之該第二輻射金屬臂8 4 2與該接地面8 3之間，且 該寄生短路金屬臂8 6具有一起始端861及一末端862，該起 始端8 6 1大致垂直連接至該接地面8 3之該第二短路點8 3 2且 大致平行於該不對稱Τ形輻射金屬臂8 4之該第三輻射金屬 臂8 4 3，而該寄生短路金屬臂8 6之該末端8 6 2大致平行於該 不對稱Τ形輻射金屬臂8 4之該第二輻射金屬臂8 4 2且朝與該 不對稱Τ形輻射金屬臂84之該第一輻射金屬臂84 1之相反方 向延伸；及一饋入同軸傳輸線8 7，用以傳輸訊號，包含： 一中心導線871，連接至該不對稱τ形輻射金屬臂84之該第 三輻射金屬臂8 4 3之該饋入點844;及一外層接地導體872 ，連接至該接地面8 3之該接地點8 3 3。在本實施例8中，該 不對稱Τ形輻射金屬臂之該第一輻射金屬臂84丨與該第二幸^ 射金屬臂8 4 2連接至該第三輕射金屬臂8 4 3上的位置不同。 以上說明中所述之實施例僅為說明本發明之原理及苴 200532987 五、發明說明（ίο) 違背本發明之精神對上述實施例進行修改及變化。本發明 之權利範圍應如後述之申請專利範圍所列。Page 17 200532987 V. Description of the invention (9) Edge 8 3 4 and forming the asymmetric T-shaped radiating metal arm 8 4 by connecting the first radiating metal arm 8 4 1 and the second radiating metal arm 8 4 2 And the third radiating metal arm 843 includes a feeding point 844; a short-circuiting metal arm 85, which is approximately an inverted L-shape, and is located at the first radiating metal arm 8 of the asymmetric T-shaped radiating metal arm 8 4 4 1 and the ground plane 8 3, one end is connected to the asymmetrical radiating metal arm 8 4, the third radiation metal arm 8 4 3, the feeding point 8 4 4, and the other end is connected to the ground plane 8 The first short-circuit point 8 3 1 of 3 is used to electrically connect the asymmetric T-shaped radiating metal arm 8 4 to the ground plane 8 3; the parasitic short-circuit metal arm 8 6 is approximately an inverted l-shape, Located between the second radiating metal arm 8 4 2 of the asymmetric τ-shaped radiating metal arm 8 4 and the ground plane 83, and the parasitic short-circuiting metal arm 86 has a starting end 861 and an end 862, the starting end 8 6 1 is substantially vertically connected to the second short-circuit point 8 3 2 of the ground plane 8 3 and is substantially parallel to the asymmetric T-shaped radiating metal arm 8 4 of the The third radiating metal arm 8 4 3, and the end 8 6 2 of the parasitic short-circuiting metal arm 8 6 is substantially parallel to the second radiating metal arm 8 4 2 of the asymmetric T-shaped radiating metal arm 8 4 and faces the The asymmetric T-shaped radiating metal arm 84 extends in the opposite direction of the first radiating metal arm 84 1; and a feed coaxial transmission line 87 is used to transmit signals, including: a center wire 871 connected to the asymmetric τ-shape The feeding point 844 of the third radiating metal arm 84 4 3 of the radiating metal arm 84; and an outer ground conductor 872 connected to the ground point 8 3 3 of the ground plane 83. In the eighth embodiment, the first radiating metal arm 84 of the asymmetric T-shaped radiating metal arm and the second radiating metal arm 8 4 2 are connected to the third light-emitting metal arm 8 4 3. The location is different. The embodiments described in the above description are only for explaining the principle and the principles of the present invention. 200532987 V. Description of the Invention (ίο) The above embodiments are modified and changed in violation of the spirit of the present invention. The scope of rights of the present invention should be listed in the scope of patent application mentioned later.
第19頁 200532987 圖式簡單說明 第1圖為傳統倒F形天線一實施例結構圖。 第2圖為傳統倒F形天線一實施例之返回損失實驗量測結果 〇 第3圖為本發明天線一實施例結構圖。 第4圖為本發明天線一實施例之返回損失實驗量測結果。 第5圖為本發明天線一實施例之輻射場型於頻率2442 MHz 之量測結果。 第6圖為本發明天線一實施例之輻射場型於頻率5 5 0 0 MHz 之量測結果。 第7圖為本發明天線一實施例之增益實驗量測結果（較低操 作頻帶）。 第8圖為本發明天線一實施例之增益實驗量測結果（較高操 作頻帶）。 第9圖為本發明天線之其他實施例結構圖。 第1 0圖為本發明天線之其他實施例結構圖。 元件符號說明： 1 :傳統倒F形天線一實施例 1 3 :接地面或筆記型電腦液晶螢幕（LCD )之支撐金屬背板 131 ： 短路點 132 : 接地點 133 : 接地面之一邊緣 1 4 :不對稱T形輻射金屬臂Page 19 200532987 Brief Description of Drawings Figure 1 is a structural diagram of an embodiment of a conventional inverted-F antenna. Fig. 2 is an experimental measurement result of return loss of an embodiment of a conventional inverted-F antenna. Fig. 3 is a structural diagram of an embodiment of the antenna of the present invention. FIG. 4 is an experimental measurement result of return loss of an embodiment of the antenna of the present invention. FIG. 5 is a measurement result of a radiation field pattern at a frequency of 2442 MHz according to an embodiment of the antenna of the present invention. FIG. 6 is a measurement result of a radiation field pattern of an antenna of the present invention at a frequency of 5 500 MHz. Fig. 7 is a measurement result (lower operating frequency band) of a gain experiment according to an embodiment of the antenna of the present invention. Fig. 8 is a measurement result (higher operating frequency band) of a gain experiment according to an embodiment of the antenna of the present invention. FIG. 9 is a structural diagram of another embodiment of the antenna of the present invention. FIG. 10 is a structural diagram of another embodiment of the antenna of the present invention. Description of component symbols: 1: An embodiment of a traditional inverted-F antenna 1 3: Ground plane or supporting metal back plate of a liquid crystal display (LCD) of a notebook computer 131: Short-circuit point 132: Ground point 133: One edge of the ground plane 1 4 : Asymmetric T-shaped radiating metal arm
200532987 圖式簡單說明 1 4 1 :第一輻射金屬臂 1 4 2 :第二輻射金屬臂 143:第三輻射金屬臂 1 4 4 :饋入點 1 5 :短路金屬臂 1 6 :饋入同軸傳輸線 1 6 1 :饋入同軸傳輸線之中心導線 1 6 2 ··饋入同軸傳輸線之外層接地導體200532987 Brief description of the drawings 1 4 1: first radiating metal arm 1 4 2: second radiating metal arm 143: third radiating metal arm 1 4 4: feeding point 1 5: short-circuiting metal arm 16: feeding into coaxial transmission line 1 6 1: Central conductor fed into coaxial transmission line 1 6 2 ·· Ground conductor fed into outer layer of coaxial transmission line
2 1 :較低操作頻帶 2 2 :較高操作頻帶 3 :本發明天線一實施例 3 3 :接地面或筆記型電腦液晶螢幕（LCD )之支撐金屬背板 3 3 1 :第一短路點 3 3 2 :第二短路點 3 3 3 :接地點 3 3 4 ··接地面之一邊緣2 1: Lower operating frequency band 2 2: Higher operating frequency band 3: Embodiment 3 of the antenna of the present invention 3: Ground plane or supporting metal back plate of the liquid crystal display (LCD) of the notebook computer 3 3 1: First short-circuit point 3 3 2: Second short-circuit point 3 3 3: Ground point 3 3 4 · One edge of the ground plane
3 4 :不對稱T形輻射金屬臂 341 :第一輻射金屬臂 342:第二輻射金屬臂 343:第三輻射金屬臂 3 4 4 :饋入點 3 5 :短路金屬臂3 4: Asymmetric T-shaped radiating metal arm 341: First radiating metal arm 342: Second radiating metal arm 343: Third radiating metal arm 3 4 4: Feed point 3 5: Short-circuiting metal arm
第21頁 200532987 圖式簡單說明 36:寄生短路金屬臂 361:寄生短路金屬臂之起始端 362:寄生短路金屬臂之末端 3 7 :饋入同轴傳輸線 3 7 1 :饋入同轴傳輸線之中心導線 3 7 2 :饋入同軸傳輸線之外層接地導體 4 1 :第一共振模態或較低操作頻帶 4 2 :較高操作頻帶 421 :第二共振模態 4 2 2 :第三共振模態 7 :本發明天線之其他實施例 7 3 ··接地面或筆記型電腦液晶螢幕（LCD )之支撐金屬背板 7 3 1 :第一短路點 7 3 2 :第二短路點 7 3 3 :接地點 7 3 4 :接地面之一邊緣 74:不對稱T形輻射金屬臂 741 :第一輻射金屬臂 742:第二輻射金屬臂 743 :第三輻射金屬臂 7 4 4 :饋入點 7 5 :短路金屬臂Page 21 200532987 Simple description of the diagram 36: Parasitic short-circuited metal arm 361: Parasitic short-circuited metal arm 362: Parasitic short-circuited metal arm 3 7: Feeds into the coaxial transmission line 3 7 1: Feeds into the center of the coaxial transmission line Lead wire 3 7 2: Feed into the outer ground conductor of the coaxial transmission line 4 1: First resonance mode or lower operating frequency band 4 2: Higher operating frequency band 421: Second resonance mode 4 2 2: Third resonance mode 7 : Other embodiments of the antenna of the present invention 7 3 ·· Ground plane or supporting metal back plate of the liquid crystal display (LCD) of the notebook computer 7 3 1: First short-circuit point 7 3 2: Second short-circuit point 7 3 3: Ground point 7 3 4: One edge of the ground plane 74: Asymmetric T-shaped radiating metal arm 741: First radiating metal arm 742: Second radiating metal arm 743: Third radiating metal arm 7 4 4: Feed point 7 5: Short circuit Metal arm
第22頁 200532987 圖式簡單說明 7 6 :寄生短路金屬臂 761:寄生短路金屬臂之起始端 7 6 2 ·•寄生短路金屬臂之末端 7 7 :饋入同轴傳輸線 7 7 1 :饋入同軸傳輸線之中心導線 7 7 2 :饋入同軸傳輸線之外層接地導體 7 8 :微波基板Page 22 200532987 Simple explanation of the drawing 7 6: Parasitic short-circuited metal arm 761: Parasitic short-circuited metal arm 7 7 2 · • Parasitic short-circuited metal arm 7 7: Feed coaxial transmission line 7 7 1: Feed coaxial Center wire of transmission line 7 7 2: Feed into outer ground conductor of coaxial transmission line 7 8: Microwave substrate
8:本發明天線之其他實施例 8 3 ··接地面或筆記型電腦液晶螢幕（LCD)之支撐金屬背板 8 3 1 :第一短路點 8 3 2 :第二短路點 8 3 3 :接地點 8 3 4 :接地面之一邊緣 8 4 :不對稱T形輻射金屬臂 8 4 1 :第一輻射金屬臂 8 4 2 :第二輻射金屬臂 8 4 3 :第三輻射金屬臂8: Other embodiments of the antenna of the present invention 8 3 ·· Ground metal surface or supporting metal back plate of the liquid crystal display (LCD) of the notebook computer 8 3 1: First short-circuit point 8 3 2: Second short-circuit point 8 3 3: Connect Place 8 3 4: One edge of the ground plane 8 4: Asymmetric T-shaped radiating metal arm 8 4 1: First radiating metal arm 8 4 2: Second radiating metal arm 8 4 3: Third radiating metal arm
8 4 4 ··饋入點 8 5 :短路金屬臂 86:寄生短路金屬臂 861:寄生短路金屬臂之起始端 862:寄生短路金屬臂之末端 8 7 :饋入同軸傳輸線8 4 4 · Feeding point 8 5: Short-circuited metal arm 86: Parasitic short-circuited metal arm 861: Start of parasitic short-circuited metal arm 862: End of parasitic-shorted metal arm 8 7: Feed into coaxial transmission line
第23頁 200532987Page 23 200532987
第24頁Page 24
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW93108770A TWI227576B (en) | 2004-03-30 | 2004-03-30 | Dual-band inverted-F antenna with a shorted parasitic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW93108770A TWI227576B (en) | 2004-03-30 | 2004-03-30 | Dual-band inverted-F antenna with a shorted parasitic element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI227576B TWI227576B (en) | 2005-02-01 |
| TW200532987A true TW200532987A (en) | 2005-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW93108770A TWI227576B (en) | 2004-03-30 | 2004-03-30 | Dual-band inverted-F antenna with a shorted parasitic element |
Country Status (1)
| Country | Link |
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| TW (1) | TWI227576B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545604A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Electronic device and multi-band antenna thereof |
| CN110600878A (en) * | 2018-06-12 | 2019-12-20 | 启碁科技股份有限公司 | Antenna structure |
| US10651553B2 (en) | 2018-05-30 | 2020-05-12 | Wistron Neweb Corporation | Antenna structure |
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| TWI337422B (en) | 2006-10-31 | 2011-02-11 | Wistron Neweb Corp | Antenna |
| US8681054B2 (en) | 2007-09-28 | 2014-03-25 | Htc Corporation | PIFA/monopole hybrid antenna and mobile communications device having the same |
| TWI451633B (en) * | 2008-09-25 | 2014-09-01 | Legend Beijing Ltd | Antenna |
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| TWI436527B (en) | 2010-05-03 | 2014-05-01 | Acer Inc | Dual-band mobile communication device and antenna structure thereof |
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| TWI491107B (en) * | 2011-12-20 | 2015-07-01 | Wistron Neweb Corp | Tunable antenna and radio-frequency device |
| TWI493792B (en) * | 2011-12-08 | 2015-07-21 | Acer Inc | Multiband antenna |
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| TWI661614B (en) | 2018-01-08 | 2019-06-01 | 華碩電腦股份有限公司 | Loop antenna |
| TWI667844B (en) | 2018-03-15 | 2019-08-01 | 華碩電腦股份有限公司 | Loop antenna |
| CN112350049B (en) * | 2019-08-09 | 2023-03-14 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| TWI721870B (en) * | 2020-04-22 | 2021-03-11 | 亞旭電腦股份有限公司 | Multi-band antenna module |
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2004
- 2004-03-30 TW TW93108770A patent/TWI227576B/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545604A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Electronic device and multi-band antenna thereof |
| CN103545604B (en) * | 2012-07-11 | 2015-07-29 | 启碁科技股份有限公司 | Electronic installation and multifrequency antenna thereof |
| US10651553B2 (en) | 2018-05-30 | 2020-05-12 | Wistron Neweb Corporation | Antenna structure |
| CN110600878A (en) * | 2018-06-12 | 2019-12-20 | 启碁科技股份有限公司 | Antenna structure |
| CN110600878B (en) * | 2018-06-12 | 2021-04-20 | 启碁科技股份有限公司 | Antenna structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI227576B (en) | 2005-02-01 |
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