TW310486B - Polarized universe Alford type loop antenna - Google Patents

Polarized universe Alford type loop antenna Download PDF

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Publication number
TW310486B
TW310486B TW85103573A TW85103573A TW310486B TW 310486 B TW310486 B TW 310486B TW 85103573 A TW85103573 A TW 85103573A TW 85103573 A TW85103573 A TW 85103573A TW 310486 B TW310486 B TW 310486B
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TW
Taiwan
Prior art keywords
band
antenna
plane
resonator
segments
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TW85103573A
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Chinese (zh)
Inventor
Huey-Ru Juang
Tzyy-Shenq Horng
Jinq-Wenn Pan
Jonq-Her Uang
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Ind Tech Res Inst
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Publication of TW310486B publication Critical patent/TW310486B/en

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Abstract

A loop antenna comprises a first Z-type label modulator on a first plane further comprising a first parallel label segment, a second parallel label segment of the same length and a third label segment which connects diagonally the two parallel label segments by opposite ends; and a second Z-type label modulator on a second plane parallel to the first plane further comprising a fourth parallel label segment, a fifth parallel label segment of the same length and a sixth label segment as long as the second label segment which also connects diagonally the two parallel label segments by opposite ends as the third label segment does; in which the second Z-typelabel modulator since being on the second plane, the sixth label segmentthus being above the third label segment and consequently the first, thesecond, the fourth and the fifth label segments can be confined on arectangular arrangement in dimension.

Description

經濟部中央標準局員工消費合作杜印製 3104S6 a7 B7 五、發明説明(/ ) 發明領域 本發明係有關可以應甩在姻人攜帶式通Jfl裝 置(如行動電話)之天線。 發明背景 圖1列舉使用在環境12的傳統手持攜帶式通 訊收發機10。如圖所示,該攜帶式通訊收發機 10即爲行動電話。典型地,行動電話被使用在像 辦公室建築這種無線電波散射結構環境;如圖1 所示,收發機10發射的無線電波信號在初始爲一 垂直極化波,經過環境_〗?_之建築物反射後,發射 的電波信號可能裏成A平舔化波。對於基地台所 發射的電波信號(此信號由收發機10接收),也會 遭遇相同現象。 理想上,具有儆極天線的收發機10發谢出垂 直極化波信號。如圖2所示,偶極天線發射的理想 電波信號爲一全向性垂直極化波(Ee)場量。 如上所述,收發機10發射或接收的信號,可 能因爲環境12造成及極化方向的改變,因此希望 提供具有水平極化波分量的垂直極化偶_天線。 (請先閱讀背面之注意事項再填寫本頁) -訂 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 經濟部中央標準局員工消费合作杜印製Du Printed by the Ministry of Economic Affairs, Central Bureau of Standards, Consumer Cooperation 3104S6 a7 B7 V. Description of the invention (/) Field of the invention The present invention relates to an antenna that can be dropped on a marriageable portable Jfl device (such as a mobile phone). Background of the Invention Figure 1 illustrates a traditional handheld portable transceiver 10 used in an environment 12. As shown in the figure, the portable communication transceiver 10 is a mobile phone. Typically, mobile phones are used in environments with radio wave scattering structures such as office buildings; as shown in Figure 1, the radio wave signal transmitted by the transceiver 10 is initially a vertically polarized wave, passing through the environment. _ After the building is reflected, the transmitted radio wave signal may become an A level licking wave. The same phenomenon will be encountered for the radio wave signal transmitted by the base station (this signal is received by the transceiver 10). Ideally, the transceiver 10 with a polarized antenna transmits a vertically polarized wave signal. As shown in Figure 2, the ideal radio wave signal transmitted by a dipole antenna is an omnidirectional vertical polarized wave (Ee) field. As described above, the signal transmitted or received by the transceiver 10 may be caused by the environment 12 and the polarization direction is changed. Therefore, it is desirable to provide a vertically polarized even antenna with horizontally polarized wave components. (Please read the precautions on the back before filling in this page) -The standard of this paper is the Chinese National Standard (CNS) A4 (210X297mm). Printed by the Ministry of Economic Affairs, Central Standards Bureau, staff consumption cooperation

Si〇48q 五、發明説明(i ) 先前的技術已經提出懷用迴線式天線(Loop Antenna)傳送接收水平極化波信號,,這是因爲迴 線式天線具有水平極化場型分量。然而個人攜帶 式通訊收發機10需求的小迴線式天線在均勻電流 分布時,存在低輻射電阻和高電抗的問題。藉由 增大迴線式天線尺寸可以增加輻射電阻,但是天 線電流分布會變的比較不均勻,因而降低輻射場 型的全向性。如圖例3-5說明。圖3例舉邊長L的 迴線式天線;圖4例舉說明天線(ί = +λ,λ = |) 的丨丨平面(θ = 90°之Χ-Υ平面)、Ε平面(φ = 0°之 Υ-Ζ平面)以及Ε平面(φ = 0°之X-Ζ平面)輻射場 型數値模擬結果;圖5則爲模擬的天線= 輻射場型數値結果。如圖所示,圖5中X-Y、Y-Z 平面輻射場型比圖5之場型結果較不均勻。 圖6-9例舉一些迴線式設計的天線。圖6表示 一個小型迴線式天線;圖7爲花葉形(Clover Leaf) 設計天線;圖8是三角形迴線式設計天線;Alford 迴線式設計天線則如圖9所示(參考J . Kraus,Si〇48q V. Description of the invention (i) The previous technology has proposed the use of a loop antenna to transmit and receive horizontally polarized wave signals, because the loop antenna has horizontally polarized field-type components. However, the small loop antenna required by the personal portable communication transceiver 10 has the problems of low radiation resistance and high reactance when the current distribution is uniform. The radiation resistance can be increased by increasing the size of the loop antenna, but the antenna current distribution becomes more uneven, thus reducing the omnidirectionality of the radiation pattern. As shown in Figure 3-5. Figure 3 exemplifies the loop antenna with side length L; Figure 4 exemplifies the 丨 plane (θ-Υ plane of θ = 90 °) and Ε plane (φ = λ = + λ, λ = |) 0 ° to the Υ-Z plane) and Ε plane (φ = 0 ° to the X-Z plane) radiation field numerical value simulation results; Figure 5 shows the simulated antenna = radiation field type numerical value results. As shown in the figure, the X-Y and Y-Z plane radiation patterns in Fig. 5 are less uniform than those in Fig. 5. Figure 6-9 illustrates some loop-type antennas. Figure 6 shows a small loop antenna; Figure 7 is a Clover Leaf design antenna; Figure 8 is a triangular loop design antenna; Alford loop design antenna is shown in Figure 9 (see J. Kraus ,

Antennas, 2d ed., ch.16 ,1988) 。在圖9中的Alford迴線式天線,電流從饋 入點F與F‘沿方形路徑的導體流動,邊長L設定爲 λ _ 〇 4 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ 297公釐) (請先閱讀背面之注意事項再填寫本頁) 訂 A7 3mae 五'發明説明(3) 除了提供具水平極化場量的天線外,吾人也希 望這種天線可以很容易的被製造。 先前的技術已經提出使用薄片導體取代圓截 面導體製作天線,如圖10所示,命名爲“耦合式微 帶補片天線(Microstrip Patch Antenna)”的天線 20。耦合式微帶補片天線2G包括多個薄片導體, 例如,三片諧振補片22、24、與26位於基板同 一平面上;圖1G所示之天線設計用在2.4GHz頻 段,該天線反射係數對頻率的變化如圖11所示, 天線2G的頻寬限制在大約1%。 圖8例舉多層微帶補片天線3 0 (參照11. S.Antennas, 2d ed., Ch. 16, 1988). In the Alford loop antenna in Fig. 9, current flows from the feed points F and F 'along the conductor of the square path, and the side length L is set to λ _ 〇4. The paper size is applicable to the Chinese National Standard (CNS) Α4 specification (210Χ 297mm) (Please read the precautions on the back before filling in this page) Order A7 3mae five 'invention description (3) In addition to providing an antenna with a horizontal polarization field, I also hope that this antenna can be easily Manufacturing. The prior art has proposed to use thin conductors instead of circular cross-section conductors to make antennas. As shown in FIG. 10, the antenna 20 is named "coupled microstrip patch antenna (Microstrip Patch Antenna)". The coupled microstrip patch antenna 2G includes a plurality of thin-film conductors, for example, three resonant patches 22, 24, and 26 are located on the same plane of the substrate; the antenna shown in FIG. 1G is designed to be used in the 2.4GHz frequency band. The change in frequency is shown in Figure 11, and the bandwidth of the antenna 2G is limited to about 1%. Figure 8 illustrates a multilayer microstrip patch antenna 30 (see 11. S.

Patent No· 4401 988),同軸電纜32的饋線31連 接到電波輻射元件-補片33 ;補片33貼於介電質 基板34上,介電質基板分隔輻射補片33與寄 生補片35;而寄生補片35貼於介電質基板36上, 介電質基板36分隔寄生補片35與接地平面37。 輻射補片33與寄生補片35間之耦合效應會增強接 近地平面角度的輻射強度,比較單層微帶補片天 線(圖10)20的場型圖13與多層微帶補片天線(圖 12)30的場型圖14,可以觀察到場強度隨著仰角 增加而增加,最大場強度發生在仰角爲90。的位置 (即補片的正上方)。而耦合式微帶補片天線係設 本紙張尺度適用中國國家標準(CNS ) A4規格(210Χ297公釐) I--------^II (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部中央樣準局貝工消費合作社印製 3ί〇486 經濟部中央標準局員工消費合作社印製 五、發明説明(f ) 計成陣列型式,陣列天線通常輻射波束寬比較窄。 耦合式微帶補片天線與多層微帶補片天線的 缺點在於它們有高指向1生的輻射波束,與行動通 訊器天線需要全向性場型却需求相違背;且此類 天線仍須人工組裝。 本發明的目的即在克服先前技術的缺點,並ίί 供可以利用印刷電路板技術製造的天線。 發明簡述 本發明提出以下實例:一新天線包含第一個ζ 型帶狀諧振器位於第一個平面上,具有相同尺寸 形狀的第一個與第二個平行縱向帶段,並由第三 個帶段對角連接第一個與第二個帶段的對邊。本 發明的第二個ζ型帶狀諧振器位於與第一個平面 平行之第二個平面上,具有相同尺寸形狀的第四 個與第五個平行縱向帶段,並由第六個帶段對角 連接第四個與第五個帶段的對邊,且第六個帶段 與第三個帶段尺寸形狀相同。因爲第二個Ζ型帶狀 諧振器位於第二個平面上,所以第六個帶段位於 第三個帶段的上方,第一、二、四、五個帶段互 成矩形邊界狀排列。 (請先閱讀背面之注意事項再填寫本頁) 、1Τ 本紙張尺度適用中國國家標準(CNS ) Α4規格(210 X 297公釐) A7 _B7 五、發明説明(i:) 經濟部中央標準局員工消費合作社印製 本天線可以很方便时在印刷霞路板上做Z型 帶狀導體製版製造。印刷電路板作爲介電質平面 基板,位於與第一、二個平面平行的第三個平面, 該平面基板位於第一、二個Z型帶狀諧振器之間。 如圖16例舉說明,第一個饋入位在第三個帶 段中心,而第二個饋入位在第六個帶段中心。第 一個信號加在第一個饋入,與第一個信號極性相 反的第二個信號加在第二個饋入;第一個信號引 發天線電流在第三個帶段流動,電流從第一個饋 入成相反方向的流向第一、二個帶段對角對邊(此 兩對邊由第三個帶段連接),然後電流流向第一、 二個帶段的端點;第二個信號引發天線電流從第 四、五個帶段端點流向第四、五個帶段對角對邊(此 兩對邊由第六個帶段連接),然後電流流向第六個 帶段中心的第—個饋入。 簡言之,本發明提供相當全向性水平極化輻射 的天線 ,該天線可以利用印刷電路板技術簡單容易 的製造,並且以小型化製作裝置在手持行動收發 機上。 (請先閱讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用中國國家標準(CNS〉A4規格(210X297公釐) 310486 A7 B7 經濟部中央標準局員工消費合作社印製 五、發明説明(ό ) 圖式簡單說明 圖1爲使用在典型通訊環境的傳統手持攜帶式通訊收 發機。 圖2爲傳統偶極天線發射的理想輻射場型。 圖3爲傳統的矩形迴線式天線。 圖4爲λ長之矩形迴線式天線的輸射場型。 圖5爲長之矩形迴線式天線的輻射場型。 圖6爲傳統的水平迴線式天線。 圖7爲傳統的花葉形(Clover Leaf)迴線式天線。 圖8爲傳統的三角形迴線式天線。 圖9爲傳統的Alford迴線式天線。 圖1〇爲傳統的耦合式微帶補片天線。 圖11爲圖10所示之天線的反射係數對頻率變化圖。 圖12爲傳統的多層微帶補片天線。 圖13爲圖10所示之天線的輻射場型。 圖14爲圖12所示之天線的輻射場型。 圖15-16爲本發明天線之實例圖。 _ 圖17爲本發明天線之SWR數値計算結果。 圖18a-b爲本發明天線之H-平面與E-平面輻射場型數 値計算結果。 圖19爲本發明天線之SWR實際量測結果。 圖20爲本發明天線之H-平面輻射場型實際量測結 果。 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 五、發明説明(7 ) A7 B7 發明之詳細描述 圖15-16爲本發明之實體之一天線10G,如圖 所示天線1GG構成手持攜帶式通訊收發機2GG(如 行動電話)的一部份。天線1GQ包含兩個Z形帶狀 諧振器110和120以及一個介電物質130,如圖例 舉說明帶狀諧振器110和120爲貼查印JU霞路:板 (如FR4玻纖基板)表面的金屬帶狀導體。 諧振器110位於第一個平面111上,包含兩個 縱向平行的帶段(或“帶翼”)113和115,兩個帶段 的端點爲113a、113b、115a以及115b,帶段113 和115有相同的大小與尺寸;再者,端點113a與 115a、113b與115b安排位置如後-使得介於端點 113a與115a間的最短直線垂直於帶段1]3和 115,類似地,使得介於端點113b與115b間的最 短直線垂直於帶段113和115。 (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局員工消費合作杜印製 對角對邊113a與115b藉由第三個帶段(或帶 臂)117互相連接,如圖所示,角Λ1和A2都等於 45°,帶段113、115和117如圖示合爲一體。 本紙張尺度適用中國國家標隼(CNS ) A4規格(210X297公釐) 經濟部中央橾準局員工消費合作社印製 A7 ___^B7_ 五、發明説明(及) 諧振器120位於平形於第一個平面111的第 二個平面121上,包含兩個縱向平行的帶段(或“帶 翼”)123和125,帶段123平形於帶段125。兩個 帶段123和125的端點爲123a、123b、125a以 及125b ;帶段123、125、113和115有相同的 大小與尺寸;再者,端點123a與125a、123b與 125b安排位置如後-使得介於端點123a與125a間 的最短直線垂直於帶段123和125,類似地,使得 介於端點123b與125b間的最短直線垂直於帶段 123和 125 。 對角對邊123a與125b藉由第六個帶段(或帶 臂)1 2 7互相連接,如圖示角Λ3和A4都等於45°, 帶段123、125和127如圖示合爲一體。 介電質基板13G位於平行於平面Π1和121的 第三平面131,且基板被夾在諧振器11G和120之 間。 諧振器110和120皆爲z型。由於諧振器110 和120平行排列,以致於帶段11?和127重疊;帶 段117和127有相同的尺寸’且帶段127位於帶段 117的正上方。此外帶段Π3、115、123和125 互成矩形邊界狀排列。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) n-n n n I n I I 衣―—I *tT (請先閲讀背面之注意事項再填寫本頁) 31Q486 A 7 B7 五、發明説明(?) 經濟部中央標準局負工消費合作社印製 諧振器11G具有饋入Π9,而諧振器120具有 饋入129。激發饋入119的信號與激發饋入129的 信號爲相反的極性,如圖示,饋入119的激發信號 產生在帶段117流動的天線電流,電流從饋入119 分別流向帶段113、115的對角對邊113a與 115b,然後電流分別在帶段113、115上流動。 激發饋入129的信號則在帶段123、125產生相反 方向的天線電流,在帶段123上的天線電流從端點 123b流向端點123a,而帶段125上的天線電流從 端點125a流向端點125b,隨後電流分別從帶段端 點123a、125b流向帶段117中的饋入129。 在諧振器11 G和12G流動的天線電流構成一個 矩形的電流迴路,並產生水平極化電磁波輻射; 如圖所示,發射的電波信號極化方向平行帶段 113、115、123 以及 125。由於帶段 117、127 間的距離很短,因此從帶段117、127輻射的電磁 場幾乎互相抵銷。 至於L、W,以及W2尺寸的選擇須要根據饋入 119、129的激發信號頻率與激發信號之電源阻抗 來決定。如圖說明,信號頻率91 5MHz爲9Q2-928 ISM 頻帶的中心頻率;又如上所述,L就等於Alford (請先閲讀背面之注意事項再填寫本頁) r 訂 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) A7 B7 經濟部中央標準局貝工消費合作社印裝 五、發明説明(/0 ) 迴線之長,不過這只是粗略估計的L値。 4 在此係利用數値計算決定L、W,以及W2尺寸 値,如圖所示,以小的方形和三角形子區域(三角 形爲45°等邊三角形,且三角形邊長等於方形邊長) 模擬組合成諧振器11 G和1 20區域,接著採用頻域 電場積分方程式數値方法可以計算每一方形和三 角形子區域上的電流分布,再決定產生最佳電流 分布所須的諧振器尺寸。在數値計算中,作了以 下的假設: 電源阻抗= 50Ω, 方形子區域尺寸= 72.5milx72.5mil, 介電質基板130厚度=1 .6mm, 相對介電係數\=4.7。 基於以上假設,L、W,以及%尺寸値決定如下: L = 42.35mm 5 W丨=3.68mm, W2 = 7.81mm。 圖1 7例舉說明天線1 〇 Q (天線尺寸如上)的輸 入駐波比(SWR)對頻率變化數値計算結果,它的中 心頻率接近915MHz ;而天線1〇〇的Η平面與E平 面輻射場型數値計算結果在圖1 8a-b中圖示,如吾 人的期望,可以觀察到在水平平面上爲水平極化 全向性場型。 (請先閲讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用t國國家標準(CNS ) A4规格(210X297公釐) 經濟部中央標準局員工消費合作杜印製 A 7 _ B7_'_ 五、發明説明(丨f ) 圖19爲實際天線1GG的輸入駐波比量測値, 實際天線1 GO的Η平面輻射場型量測値如圖20所 示;比較圖17、19與圖18a、20,可以看到SWR 和H-平面場型的量測結果類似預測結果。 簡言之,吾人提出一種新的水平極化設計天 線。這種天線應用了 Alford迴路原理與印刷電路 板技術,製作非常容易;該天線具有相當全向性 的場型,在水平平面上爲水平極化波輻射。 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS )八4規格(210X 297公釐)Patent No. 4401 988), the feeder 31 of the coaxial cable 32 is connected to the radio wave radiating element-patch 33; patch 33 is attached to the dielectric substrate 34, the dielectric substrate separates the radiation patch 33 and the parasitic patch 35; The parasitic patch 35 is attached to the dielectric substrate 36, and the dielectric substrate 36 separates the parasitic patch 35 and the ground plane 37. The coupling effect between the radiation patch 33 and the parasitic patch 35 will enhance the radiation intensity close to the ground plane angle. Compare the field pattern of the single-layer microstrip patch antenna (Figure 10) 20 with the multi-layer microstrip patch antenna (Figure 10). 12) Field pattern of 30. It can be observed that the field strength increases with increasing elevation angle, and the maximum field strength occurs at an elevation angle of 90. Position (ie directly above the patch). The coupled microstrip patch antenna is based on the paper standard applicable to the Chinese National Standard (CNS) A4 specification (210Χ297mm) I -------- ^ II (please read the precautions on the back before filling this page) Printed by the Beige Consumer Cooperative of the Central Sample Bureau of the Ministry of Economic Affairs. 3486 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy. Fifth, the invention description (f) is counted as an array type. The array antenna usually has a relatively narrow beam width. The disadvantages of coupled microstrip patch antennas and multi-layer microstrip patch antennas are that they have a high-directional radiation beam, which is contrary to the requirements of mobile communicator antennas that require an omnidirectional field pattern; and such antennas must still be assembled manually . The purpose of the present invention is to overcome the shortcomings of the prior art and provide antennas that can be manufactured using printed circuit board technology. Brief description of the invention The present invention proposes the following example: a new antenna includes a first z-shaped strip resonator located on the first plane, the first and second parallel longitudinal band segments of the same size and shape, and the third The two bands diagonally connect the opposite sides of the first and second bands. The second z-type ribbon resonator of the present invention is located on the second plane parallel to the first plane, and the fourth and fifth parallel longitudinal band segments having the same size and shape are formed by the sixth band segment Diagonally connect the opposite sides of the fourth and fifth bands, and the sixth band has the same size and shape as the third band. Because the second Z-shaped band resonator is located on the second plane, the sixth band section is located above the third band section, and the first, second, fourth, and fifth band sections are arranged in a rectangular boundary shape with each other. (Please read the precautions on the back before filling out this page). 1T This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210 X 297 mm) A7 _B7 V. Invention description (i :) Employees of the Central Standards Bureau of the Ministry of Economic Affairs The antenna printed by the consumer cooperative can be easily made as a Z-shaped strip conductor plate-making on the printed Xialu board. The printed circuit board serves as a dielectric planar substrate and is located in a third plane parallel to the first and second planes. The planar substrate is located between the first and second Z-band resonators. As illustrated in Figure 16, the first feed is in the center of the third band, and the second feed is in the center of the sixth band. The first signal is added to the first feed, and the second signal with the opposite polarity to the first signal is added to the second feed; the first signal causes the antenna current to flow in the third band, the current from the first A feed in the opposite direction flows diagonally to the first and second bands (the two pairs are connected by the third band), and then the current flows to the end points of the first and second bands; the second Signals cause the antenna current to flow from the end points of the fourth and fifth bands to the diagonally opposite sides of the fourth and fifth bands (the two opposite sides are connected by the sixth band), and then the current flows to the center of the sixth band -The first feed. In short, the present invention provides a fairly omnidirectional horizontally polarized radiation antenna that can be easily and easily manufactured using printed circuit board technology, and with a miniaturized manufacturing device on a handheld mobile transceiver. (Please read the precautions on the back and then fill out this page) The standard of the paper is applicable to the Chinese National Standard (CNS> A4 specification (210X297 mm) 310486 A7 B7 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention Instructions (ό ) The diagram is a simple illustration. Figure 1 is a traditional handheld portable communication transceiver used in a typical communication environment. Figure 2 is the ideal radiation pattern emitted by a traditional dipole antenna. Figure 3 is a traditional rectangular loop antenna. Figure 4 is The transmission field pattern of the long rectangular loop antenna with lambda. Figure 5 is the radiation pattern of the long rectangular loop antenna. Figure 6 is the traditional horizontal loop antenna. Figure 7 is the traditional Clover Leaf shape. ) Loop antenna. Figure 8 is the traditional triangular loop antenna. Figure 9 is the traditional Alford loop antenna. Figure 10 is the traditional coupled microstrip patch antenna. Figure 11 is the antenna shown in Figure 10 Fig. 12 is a conventional multilayer microstrip patch antenna. Fig. 13 is the radiation pattern of the antenna shown in Fig. 10. Fig. 14 is the radiation pattern of the antenna shown in Fig. 12. Fig. 15 -16 is an example of the antenna of the present invention _ FIG. 17 is the calculation result of the SWR number of the antenna of the invention. FIG. 18a-b is the calculation result of the H-plane and E-plane radiation field number of the antenna of the invention. FIG. 19 is the actual measurement of the SWR of the antenna of the invention Results. Figure 20 shows the actual measurement results of the H-plane radiation pattern of the antenna of the invention. (Please read the precautions on the back before filling this page) This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) V. Description of the invention (7) A7 B7 Detailed description of the invention FIG. 15-16 is an antenna 10G which is an entity of the invention. As shown in the figure, the antenna 1GG constitutes a part of the handheld portable communication transceiver 2GG (such as a mobile phone) The antenna 1GQ contains two Z-shaped strip resonators 110 and 120 and a dielectric substance 130, as shown in the figure illustrates the strip resonators 110 and 120 are attached to the surface of the printed JU Xialu: board (such as FR4 glass fiber substrate) The metal strip conductor. The resonator 110 is located on the first plane 111 and contains two longitudinally parallel band segments (or “ribbons”) 113 and 115, and the end points of the two band segments are 113a, 113b, 115a and 115b, the bands 113 and 115 have the same size and size; again , The end points 113a and 115a, 113b and 115b are arranged as follows-so that the shortest straight line between the end points 113a and 115a is perpendicular to the band 1] 3 and 115, similarly, so that the end point 113b and 115b The shortest straight line is perpendicular to the bands 113 and 115. (Please read the precautions on the back before filling in this page) Order the consumer cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs to print diagonally opposite sides 113a and 115b with the third band ( Or belt arms) 117 are connected to each other, as shown, the angles Λ1 and A2 are both equal to 45 °, and the belt segments 113, 115, and 117 are integrated as shown. This paper scale is applicable to the Chinese National Standard Falcon (CNS) A4 specification (210X297 mm). The A7 is printed by the Consumer Cooperative of the Central Department of Economics of the Ministry of Economic Affairs. A7 ___ ^ B7_ 5. Description of the invention (and) The resonator 120 is flat on the first plane The second plane 121 of 111 contains two longitudinally parallel band segments (or "belts") 123 and 125. The band segment 123 is flat to the band segment 125. The end points of the two band segments 123 and 125 are 123a, 123b, 125a and 125b; the band segments 123, 125, 113 and 115 have the same size and size; moreover, the end points 123a and 125a, 123b and 125b are arranged as Back-makes the shortest straight line between the end points 123a and 125a perpendicular to the band segments 123 and 125, and similarly makes the shortest straight line between the end points 123b and 125b perpendicular to the band segments 123 and 125. The diagonally opposite sides 123a and 125b are connected to each other by the sixth band segment (or band arm) 1 2 7, as shown, the angles Λ3 and A4 are both equal to 45 °, and the band segments 123, 125, and 127 are integrated as shown . The dielectric substrate 13G is located on the third plane 131 parallel to the planes Π1 and 121, and the substrate is sandwiched between the resonators 11G and 120. Both resonators 110 and 120 are z-type. Since the resonators 110 and 120 are arranged in parallel, the band segments 11? And 127 overlap; the band segments 117 and 127 have the same size 'and the band segment 127 is located directly above the band segment 117. In addition, the band segments Π3, 115, 123, and 125 are arranged in a rectangular boundary with each other. This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) nn nn I n II clothing-I * tT (please read the precautions on the back before filling this page) 31Q486 A 7 B7 V. Description of invention ( ?) The Ministry of Economic Affairs Central Bureau of Standards Consumer Labor Cooperatives printed the resonator 11G with a feed Π9, while the resonator 120 has a feed 129. The signal of the excitation feed 119 and the signal of the excitation feed 129 have opposite polarities. As shown, the excitation signal of the feed 119 generates an antenna current flowing in the band 117, and the current flows from the feed 119 to the bands 113 and 115, respectively Diagonally opposite sides 113a and 115b, and then current flows on the bands 113 and 115, respectively. The signal exciting the feed 129 produces antenna currents in opposite directions at the bands 123 and 125. The antenna current at the band 123 flows from the end 123b to the end 123a, and the antenna current at the band 125 flows from the end 125a to End point 125b, and then the current flows from the band end points 123a, 125b to the feed 129 in the band section 117, respectively. The antenna currents flowing in the resonators 11G and 12G form a rectangular current loop and generate horizontally polarized electromagnetic wave radiation. As shown in the figure, the polarized directions of the transmitted radio wave signals are parallel to the bands 113, 115, 123, and 125. Since the distance between the bands 117 and 127 is very short, the electromagnetic fields radiated from the bands 117 and 127 almost cancel each other out. As for the size selection of L, W, and W2, it is necessary to determine the excitation signal frequency and the power supply impedance of the excitation signal fed into 119 and 129. As shown in the figure, the signal frequency 91 5MHz is the center frequency of the 9Q2-928 ISM band; and as mentioned above, L is equal to Alford (please read the precautions on the back before filling this page) CNS) A4 specification (210X297 mm) A7 B7 Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (/ 0) The length of the loop, but this is only a rough estimate of L-value. 4 In this system, the numerical values are used to determine the L, W, and W2 size values. As shown in the figure, small square and triangular sub-regions (triangles are 45 ° equilateral triangles, and the triangle side length is equal to the square side length) simulation Combine the resonators 11 G and 120 regions, and then use the frequency domain electric field integral equation numerical method to calculate the current distribution on each square and triangle sub-region, and then determine the resonator size required to produce the optimal current distribution. In the numerical calculation, the following assumptions are made: power supply impedance = 50Ω, square sub-region size = 72.5milx72.5mil, dielectric substrate 130 thickness = 1.6mm, and relative dielectric coefficient \ = 4.7. Based on the above assumptions, L, W, and% size values are determined as follows: L = 42.35mm 5 W 丨 = 3.68mm, W2 = 7.81mm. Figure 17 exemplifies the calculation result of the input standing wave ratio (SWR) of the antenna 10Q (the antenna size is as above) versus the frequency change value, and its center frequency is close to 915MHz; while the H plane and E plane radiation of the antenna 100 The calculation results of the field pattern number are shown in Fig. 18a-b. As we expected, we can observe the horizontally polarized omnidirectional field pattern in the horizontal plane. (Please read the precautions on the back and then fill out this page) The standard of this paper is the national standard (CNS) A4 (210X297mm) of the national standard (Ministry of Economic Affairs, Central Bureau of Standards, employee consumption cooperation du printing A 7 _ B7 _'_ five Description of the invention (丨 f) FIG. 19 shows the measurement of the input standing wave ratio of the actual antenna 1GG. The measurement value of the Η-plane radiation field pattern of the actual antenna 1 GO is shown in FIG. 20; compare FIGS. 17, 19 and 18a. 20. It can be seen that the measurement results of the SWR and H-plane field patterns are similar to the prediction results. In short, we proposed a new horizontal polarization design antenna. This antenna applies the Alford loop principle and printed circuit board technology and is very easy to manufacture; the antenna has a fairly omnidirectional field pattern and is horizontally polarized wave radiation in the horizontal plane. (Please read the precautions on the back before filling in this page) This paper scale is applicable to China National Standard (CNS) 84 specifications (210X 297mm)

Claims (1)

A8 B8 C8 D8 々、申請專利範圍 第二個z型帶狀諧振器位於平行於第一個平面 的第二個平面上,包含有相同尺寸形狀的第四 個與第五個平行縱向帶段,以及第六個帶段 (與第三個帶段尺寸形狀相同)對角連接第一 個與第二個帶段的對邊; 第二個z型帶狀諧振器位於第二個平面上,所 以第六個帶段位於第三個帶狀導體的上方,第 —、二、四、五個帶段互成矩形狀排列。 ----------餐------1T------.# (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印装 本紙張尺度適用中國國家標隼(CNS ) A4規格(210X:297公釐} A8 B8 C8 D8 々、申請專利範圍 然後電流流向第一、二個帶段的端點;第二 個信號引發天線電流從第四、五個帶段端點 流向第四、五個帶段對角對邊(此兩對邊由第 六個帶段連接),然後電流流向第六個帶段 中心的第二個饋入。 4. 如申請專利範圍第1項所述之天線再包含: 一平面介電物質位於平行於第一個平面和第 二個平面的第三個平面上,且平面介電物質位 於第一個和第二個Z型帶狀諧振器之間。 5. 如申請專利範圍第4項所述之天線,其中介電 物質爲一印刷電路板基板,以及第一個和第 二個Z型帶狀諧振器爲製版在印刷電路板兩 相對板面上的金屬導體。 6. —種提供雙向通訊的攜帶式收發機,該收發機 上的天線包含: 第一個Z型帶狀諧振器位於第一個平面上,包 含有相同尺寸形狀的第一個與第二個平行縱 向帶段,以及第三個帶段對角連接第一個與第 二個帶段的對邊;以及 本紙張尺度適用中國國家標準(CNS ) A4規格(21〇X:297公釐) ---------d------、aT------^ (請先閲讀背面之注意事項再填寫本頁)A8 B8 C8 D8 々. Patent application The second z-band resonator is located on the second plane parallel to the first plane, and contains the fourth and fifth parallel longitudinal band segments of the same size and shape. And the sixth band (same size and shape as the third band) diagonally connects the opposite sides of the first and second bands; the second z-band resonator is on the second plane, so The sixth band segment is located above the third strip conductor, and the first, second, fourth, and fifth band segments are arranged in a rectangular shape with each other. ---------- meal ------ 1T ------. # (Please read the precautions on the back before filling out this page) Printed copy of the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The paper scale is applicable to China National Standard Falcon (CNS) A4 specification (210X: 297mm) A8 B8 C8 D8 々, apply for a patent and then the current flows to the end points of the first and second bands; the second signal triggers the antenna current from The end points of the fourth and fifth bands flow to the diagonal ends of the fourth and fifth bands (the two opposite sides are connected by the sixth band), and then the current flows to the second feed in the center of the sixth band 4. The antenna as described in item 1 of the patent application scope further includes: a planar dielectric substance is located on a third plane parallel to the first plane and the second plane, and the planar dielectric substance is located on the first And the second Z-band resonator. 5. The antenna as described in item 4 of the patent application, in which the dielectric substance is a printed circuit board substrate, and the first and second Z-band resonators The resonator is a metal conductor plate-making on the two opposite surfaces of the printed circuit board. 6. A portable type that provides two-way communication Transceiver, the antenna on the transceiver contains: The first Z-shaped ribbon resonator is located on the first plane, contains the first and second parallel longitudinal band segments of the same size and shape, and the third band The corners of the segments connect the opposite edges of the first and second bands; and this paper scale is applicable to the Chinese National Standard (CNS) A4 specification (21〇X: 297 mm) --------- d- ----- 、 aT ------ ^ (Please read the notes on the back before filling this page) 經濟部中央標隼局員工消費合阼、汰印获 々、申請專利範圍 1. 一天線包含: 第一個z型帶狀諧振器位_於第一個平面上,包 含有相同尺寸形狀的第一個與第二個平行縱 向帶段,以及第三個帶段對角連接第一個與第 二個帶段的對邊;以及 第二個Z型帶狀諧振器位於平行於第一姻乎面 的第二ϋ平面上,包含有相同尺寸形狀的第四 個與第五個平行縱向帶段,以及第六個帶段 (與第三個帶段尺寸形狀相同)對角連接第一 個與第二個帶段的對邊; 第二個Ζ型帶狀諧振器位於第二個平面上,所 以第六個帶段位於第三個帶狀導體的上方,第 一、二、四、五個帶段互成矩形狀排列。 2. 如申請專利範圍第1項所述之天線再包含: 第一個饋入位於第三個帶段的中心,以及 第二個饋入位於第六個帶段的中心。 3. 如申請專利範圍第2項所述之天線中,第一個 信號加在第一個饋入,與第一個信號極性相 反的第二個信號加在第二個饋入;第一個信 號引發天線電流在第三個帶段流動,電流從 第一個饋入成相反方向的流向第一、二個帶 段對角對邊(此兩對邊由第三個帶段連接), 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) ---------------ΐτ------.if (請先閲讀背面之注意事項再填寫本頁)The Ministry of Economic Affairs, Central Standard Falcon Bureau ’s Consumer Consumption Service, Tie Yin was awarded, and the scope of patent application 1. An antenna contains: The first z-shaped ribbon resonator is located on the first plane, and contains the same size and shape of the first A parallel longitudinal band segment with the second, and a third band segment diagonally connecting the opposite sides of the first and second band segments; and the second Z-band resonator is located parallel to the first On the second ϋ plane of the plane, the fourth and fifth parallel longitudinal band segments with the same size and shape, and the sixth band segment (same size and shape as the third band segment) are connected diagonally The opposite side of the second band segment; the second Z-strip resonator is located on the second plane, so the sixth band segment is above the third strip conductor, the first, second, fourth, and fifth The band segments are arranged in a rectangular shape with each other. 2. The antenna as described in item 1 of the patent application scope further includes: the first feed is located in the center of the third band, and the second feed is located in the center of the sixth band. 3. In the antenna described in item 2 of the patent scope, the first signal is added to the first feed, and the second signal with the opposite polarity to the first signal is added to the second feed; the first The signal causes the antenna current to flow in the third band, and the current flows from the first into the opposite direction to the first and second bands diagonally opposite (the two opposite sides are connected by the third band), this The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) --------------- lτ ------. If (please read the precautions on the back before filling in (This page)
TW85103573A 1996-03-22 1996-03-22 Polarized universe Alford type loop antenna TW310486B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9325392B2 (en) 2014-08-05 2016-04-26 National Chiao Tung University Horizontally polarized omnidirectional antenna and antenna device incorporating the same
CN108183324A (en) * 2014-08-12 2018-06-19 启碁科技股份有限公司 Antenna and Anneta module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9325392B2 (en) 2014-08-05 2016-04-26 National Chiao Tung University Horizontally polarized omnidirectional antenna and antenna device incorporating the same
CN108183324A (en) * 2014-08-12 2018-06-19 启碁科技股份有限公司 Antenna and Anneta module

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