200917569 九、發明說明： 【發明所屬之技術領域】 本發明係關於種微帶天線上抑制其交叉極化 (cross-polarizat^ , , 破壞其對稱性，抑制其交又極化的方法。 沐孔 【先前技術】 隨著無線通崎技的發展，各式的通喊品與技術也不斷的 推陳出新。隨著技躺進步，使得產品的體積也傾向輕薄短小。 同樣的在通訊產品中时接受或發射訊·天線，其體積大小也 就攸關著產品是否能達到輕薄短小。各項技術中，微帶天線 antenna)的技術已經成為天義域巾發展最快速的一 門。微帶天線具有體積小、重量輕、可彎曲、可結合其他元件虫 電路等優點。 ~ -般常見的微帶天線設計，功率彳她合進人天線輻射單元的 方式可概略分為直接饋人與間接饋人兩種。典型的直接饋入使用 同軸線或彳政可線連接訊號傳輸線與天線輻射元件，因此天線的基 本特性與饋入點的位置有很大的關係。而間接饋入的方式，在不 破壞天線輕射元件結構的前提下，能夠提供較大空間以結合饋入 網路與相_波電路。而天線輻射元件上的天線輻射單元增加， 固然使主極化（co-polarization)增加，但是其交叉極化 (cross-polarization)的影響也隨之增加。 因此，如何能提供一種抑制交叉極化的微帶天線，成為研究 人員待解決的問題之一。 200917569 【發明内容】 _ 化=的問題’本發明提供—種微帶天線上抑制其交叉極 "細在微帶场上_#孔，破壞其對_ 父叉極化的方法。 〃 根據本發明所揭露之微帶天線上抑制其交叉極化之方法。主 ===天!時’先對製成之微帶天線進行檢測， ’、、、'、、母幸虽射單元對輻射頻率的交叉極化影響皆 支口此先仃提供-微帶天線進行檢測，得到在一輕射頻率波段 :之交叉極化的強弱分佈；紐破_微帶天線上任—天線賴射 早兀之對難，㈣幡__較段巾，交又 田 ==爾——咖恤。 壞其:稱性：:=天線_元上製输^ 扪在不衫善该天線輻射單元所對應輻射頻主 極化的條件下’有效_其交又極化。 明如=本侧肖冑峨，__輸物詳細說 【實施方式】 有關本發明_徵與實作，茲配合圖式詳細說明如下。 1本發明所揭露之微帶天線，包括但不舰 示之微帶天線形狀、赵旦也从，h Jr ^ 說明用:並非用以限制ςΓ位所附圖式僅提供參考與 制α月芬“7、帛1圖」係為本發明之微帶天線上抑制其交叉極俨 衣作流程圖，包含有：提供«天線進行制，賴帶天線料 200917569 複數個天線輕射單元(步驟sn)。制該微帶 段之交叉極化強弱分佈；（步 $田射員4攻 哪個頻率區段所受到交叉極 二，钱仃知较因為 如β較嚴重的。然後破壞該微帶天 、'，Η -天線#射單元之對雛，以爾該輻射頻 六 叉極化會隨練_天_射單元對稱㈣ ς 率區段(步驟叫。這樣可以得到微帶天線上任-天_射== 對應之該解輻射波段之姉頻轉段。這步驟㈣為對每 率區段而言，每個天、_射單元錄的訊龍度都不—樣，因此 天線中任一輻射單元30對交又極化的影響皆不-樣。所以要改盖 =頻輪糊蚊極爾，賴械應麵 耗段的天線輻射單元。接著決定欲抑制其交叉極化之幅射頻率 區段(步驟S14)。在相對應該幅射頻率區段之該天線輻射單元上形 成槽孔(步驟S15)。因為當我們在天線輻射單元上形成槽孔，會破 壞其天線輻射單元内電流流_對稱性，亦制其在㈣應之輕射 頻率區&之父叉極化。形賴孔的方妓以製程的方法。 在設計及㈣鮮讀上_其交又極化之方法時，要對微 帶天線進行檢測，碰_枝是驗暗t (Anechoic Chamber) ’細金屬製成之牆面肋隔離外在信號的干擾，在暗 室内則以電磁吸波材料黏貼於牆上用以降低室内的反射能量，當 進行里測時’待測天線（Amenna Under Test，AUT)所輻射出的 電磁波參數（如振幅與相位）在近場空間中的分布會被—接收掃 描揼頭（ScanningProbe)所偵測(本發明之實施例進行量測時的待 測天線與接收掃描探頭間的距離為4公尺），其掃描方式可為平 200917569 柱面或球面這些射頻(或微波)信號以電的形式經由—同轴傳 輸線（Co·娜）傳送至向量網路分析儀（Vector Netw〇rk —nalyzer VNA) ’以轉相關的㈣，輯魏據錢端進行探 員幸田射琢型；k正與傅利葉數值轉換等處理後，即可得到所需的待 測天線輻射（遠場）場型。 、 請參照「第2圖」係為本發明之微帶天線上抑制其交叉極化 =-製作流糊，包含有：首先在設計及製倾帶天線上抑制其 化s=::，先行利用模擬軟體建立預製成之微帶天線模 的二a。Μ在模擬軟體中輸人饋人訊號的鮮、饋入網路 績的:值等相關茶數(步驟S22)。使用該模擬軟體模擬出-微帶天 =射卿’得岭微帶天線在—補醉波段之交又極化強 天步驟S23)。使用該模擬軟體測試該微帶天線上破壞該微帶 ^任—场輻射單元之對雛，_得_賴率波段中， 化會隨#破壞該天線_單元 頻率區段(步驟S2 又κρ市κ孕田射 段(牛驟伽η 疋欲抑制其交又極化之一幅射頻率區 輕料喊體巾軸職·_賴段之該天線 線的輻_，辦(是°使__難_帶天 之交又極化(步驟S27r。帽該天線輻射單摘對應輻射頻率 將模擬結果做出成σ，、， 波暗室(Anech01cCha二)亚,仃檢測。檢測的方式是利用-電 信號的干擾，在暗室内一=屬製成之牆面用以隔離外在 内的反射能量，當進行量波材料黏貼於紅用以降低室 d知，待測天線（Ante助a Under Test， 200917569 分布合、古 電磁波參數（如振幅與相位）在近場空間中的 二進二接收掃描探頭（ScannmgProbe)所偵測(本發明之~ 測時的待測天線與接輯描探頭間的 = ::ΓΓ面、柱面或球面。這些射頻(或微波)信號= 二一==:=量網路分析儀 斤而的待測天線輻射（遠場）場型。。 示意=包之未抑制交又極化之峨線 匕δ有基板10、金屬線路2〇 30、訊號饋入部4〇。和 婁個天線幅射單元 而⑽八屈 有相對之第—表面肋盥第1 面搬，金屬線路2〇係形成於第—表面ι〇ι 。弟—表 單元形成於第—表面1〇1上，並 ^數個天線幅射 哕篦一丰而早j刀佈。金屬線路20，位於 ^ 又 上，連接該複數個天線輻射單元3〇。 、 基，10通常為—印刷電路板’雜，亦可以採用与種類之 土板’而絲板w可叹魏或可 、 玻璃纖維或電木等其他材質；可挽式軟板;材質^㈣機為 或是聚對苯二卩酸乙KPET)等其他材質。’’、、德亞胺(PI) 金屬線路20,用以接收來自_饋人部4 饋入訊號傳遞至相對應的複數個天線幅射單元3G。、认I ’將 ,複數個天職射料3Q，肋絲自麵树 入όίΐ號，轉換成一幸畐射訊號。 、〜貝 請參照「第4圖」’係為本發明之抑制交又極化之微帶天線示 200917569 意圖，其包含有基板110、金屬線路i2〇、 13〇、訊號饋人部UG與槽孔15Q。基板uQ:個天線幅射單元 111與第二表面112 ’金屬線路12◦係形成於第—=表面 數個天線幅射單元則形成於第一表面上 ㈣111上。複 金屬線路120,位於該第_# 上’亚以陣列分佈。 元130。 表面111上，連接該複數個天線輻射單 其_;可撓二二=: ㈣或疋L二—乙：SI(PET)等其他材質。 ^ 土萄線路1』帛以接收來自訊號饋入部副的饋入 將饋=訊號傳遞至相對應的複數個天線幅射單元⑽。〜 複數個天_單元⑽，肋接收來自金屬線路⑽傳遞 之饋入訊號，並將該饋人訊號轉換成—無線訊號。 〜 槽孔150 ’域於第—表面ηι上，_破壞天線輕射單元 130内電_動的對_，亦制其交叉極化。槽孔⑼的形狀可 以是但不伽於是細彡、麵、_。形成槪i5Q的方式是以 微影製程的方法。 一參照「第5A圖」、「第5B圖」、「第5C圖」和「第5D圖」。 「弟5A圖！和「笔闽 ^ “ 罘冰圖」係以頻率3.7GHz和3.8GHz在未抑制 交又，化之微帶天線檢測所得之水平交叉極化增飼。「第冗圖」 矛第DD圖」係以頻率3.7GHz和3.8GHz在本發明之抑制交叉 極化之微帶天線檢渺稱之料交又極化增益圖 。由圖中可以看 200917569 出，當在天線輻射單元上形成槽孔時，在頻率3 7ghz與3遍z B夺’水平X叉極化增益值會、平均下掉*〜通。 雖然本發明以前述之較佳實施例揭露如上，然其並非用以限 疋本士明’任何A習相像技藝者，在不脫離本發明之精神和範圍 内’田可作些許之更動麵飾，因此本發明之利保護範圍須視 本說明書_之申請專利範_界定者為準。 【圖式簡單說明】 第1圖係為本發明之微帶天線上抑制其交叉極化製作流程 圖， 。f 2圖係為本發明之微帶天線上抑制其交叉極化另-製作流 ^ 3圖係為本發明之未抑制交叉極化之微帶天線示意圖； 弟4圖係為本發明之抑制交又極化之微帶天線示意圖’· U圖係以頻率3鳥在未抑制交又極 所得之水平交叉極化增益圖； 第5B圖係以頻率3 8GH在来 所得之水平蚊触_ ; ~细比鮮天線檢測 之抑制交叉極化之微帶天 第5C圖係以頻率3.7GHz在本發明 線檢測所得之水平交又極化增益圖；及 之抑制交叉極化之微帶天 第5D圖係以頻率3 8GHz j本發明 線檢測所得之水平交又極化增益圖。 【主要元件符號說明】 10 基板 200917569 20................饋入網路 30................天線輕射單元 40................訊號饋入端 101 ...............第一表面 102 ...............第二表面 110 ...............基板 111 ...............第一表面 112 ...............第二表面 120...............饋入網路 130...............天線輻射單元 140...............訊號饋入端 150...............槽孔 12200917569 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for suppressing cross-polarization on a microstrip antenna, destroying its symmetry, and suppressing its cross-polarization. [Prior Art] With the development of wireless tsusaki technology, all kinds of screaming products and technologies are constantly being updated. With the advancement of technology, the volume of products tends to be light and thin. The same is accepted or accepted in communication products. The size of the transmitter and antenna is related to whether the product can be light, thin and short. Among various technologies, the technology of the microstrip antenna has become the fastest development of the Tianyi domain towel. The microstrip antenna has the advantages of small size, light weight, flexibility, and the ability to combine other component worm circuits. ~ The common microstrip antenna design, the power she can fit into the antenna radiating unit can be roughly divided into direct feeding and indirect feeding. A typical direct feed uses a coaxial or sinusoidal line to connect the signal transmission line to the antenna radiating element, so the basic characteristics of the antenna have a large relationship with the position of the feed point. The indirect feeding method can provide a larger space to combine the feed network and the phase-wave circuit without destroying the structure of the antenna light-emitting element. While the antenna radiating element on the antenna radiating element increases, although the co-polarization is increased, the influence of cross-polarization is also increased. Therefore, how to provide a microstrip antenna that suppresses cross polarization has become one of the problems to be solved by researchers. The present invention provides a method for suppressing the cross-polarity of a microstrip antenna and thinning the _# hole on the microstrip field to destroy the polarization of the _ parent fork.方法 A method of suppressing cross polarization on a microstrip antenna according to the present invention. Master === days! When 'the first microstrip antenna is detected, ',,, ',,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The detection is performed in a light-frequency frequency band: the distribution of the strong polarization of the cross-polarization; the New-Break_Microstrip antenna is on the line--the antenna is relatively early, and (4) 幡__ is more than the section towel, and the land is == - Coffee. Bad: Weighing: := Antenna _ Yuan on the transmission ^ 扪 不 该 该 该 该 该 该 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线Mingru = the side of the side Xiao Yu, __ the details of the input [Embodiment] Regarding the present invention _ sign and implementation, the drawings are described in detail below. 1 The microstrip antenna disclosed in the present invention includes the shape of the microstrip antenna but not shown in the ship, and Zhao Dan also from, h Jr ^ Description: It is not used to limit the position of the 仅 position only provides reference and system "7, 帛 1 map" is a flow chart for suppressing the cross-over coating on the microstrip antenna of the present invention, including: providing "antenna", tying antenna material 200917569, multiple antenna light-emitting units (step sn) . The cross-polarization intensity distribution of the microstrip segment is made; (step #田射员4 attack which frequency segment is subjected to the cross pole two, Qian Qianzhi is more serious because of β, then destroy the microstrip day, ', Η-Antenna# The unit of the shot unit, the frequency of the six-fork polarization will follow the _day_shooting unit symmetry (four) ς rate section (step called. This can get the microstrip antenna on the line - day _ shot == Corresponding to the frequency-spreading segment of the de-radiation band. In this step (4), for each rate segment, each channel, the signal of the unit is not the same, so any pair of radiation units 30 in the antenna The effects of cross-linking and polarization are not the same. Therefore, it is necessary to change the cover = the antenna of the antenna, and then the antenna radiating unit of the section that consumes the surface. Then decide the section of the radiated frequency to suppress its cross-polarization (steps) S14) forming a slot on the antenna radiating element corresponding to the radiated frequency section (step S15). Because when we form a slot in the antenna radiating element, the current flow _symmetry in the antenna radiating element is destroyed, Also in the (four) should be in the light frequency region & the parent fork polarization. Method: In the design and (4) fresh reading _ its method of cross-polarization, the microstrip antenna should be tested, the touch is t-Anechoic Chamber's wall rib isolation made of fine metal Signal interference, in the dark room, the electromagnetic absorbing material is adhered to the wall to reduce the reflection energy in the room. When performing the measurement, the electromagnetic wave parameters (such as the amplitude) radiated by the antenna (Amenna Under Test, AUT) And the distribution of the phase in the near-field space is detected by the receiving scanning probe (the distance between the antenna to be tested and the receiving scanning probe when the embodiment of the present invention is measured) is 4 meters, The scanning method can be flat 200917569 cylinder or spherical radio frequency (or microwave) signals are transmitted electrically via a coaxial transmission line (Co·na) to a vector network analyzer (Vector Netw〇rk —nalyzer VNA) The related (4), the series of Wei according to the money end of the agent Xingtian shooting type; k and the Fourier value conversion process, you can get the required antenna radiation (far field) field type., please refer to 2" is the invention Suppressing cross-polarization on the microstrip antenna =- Making a flow paste, including: first suppressing the s=:: on the design and the tilting-band antenna, first using the simulation software to build the pre-made microstrip antenna module a. In the simulation software, the input of the feed signal, the value of the incoming network: the value and other related tea numbers (step S22). Using the simulation software to simulate - microstrip days = shooting Qing 'Deling microstrip The antenna is at the intersection of the intoxicating band and the polarization is strong step S23). Using the simulation software to test the microstrip antenna on the microstrip ^ field-radiation unit, the _ _ _ rate band Will destroy the antenna_unit frequency section with ## (Step S2 and κρ市κ孕田射段(牛继伽η 疋 抑制 抑制 抑制 抑制 交 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一The radiant _ of the antenna line of the lag section (is ° __ difficult _ with the turn of the day and polarization (step S27r. The cap radiates a single pick corresponding radiation frequency. The simulation result is made into σ, ,, and the dark chamber (Anech01cCha II) sub-detection. The detection method is to use the interference of the electric signal, and the reflection energy in the dark room is used to isolate the external wall. When the volume wave material is adhered to the red to reduce the room d, the antenna to be tested (Ante helps a Under Test, 200917569 distributed and ancient electromagnetic wave parameters (such as amplitude and phase) detected by the binary input scanning probe (ScannmgProbe) in the near-field space (the antenna to be tested of the present invention Between the probes: :: ΓΓ face, cylinder or sphere. These RF (or microwave) signals = 21 ==: = amount of network antenna to be measured and the antenna radiation (far field) field type. The indication = the unconstrained cross-polarization of the package 匕 有 has a substrate 10, a metal line 2 〇 30, a signal feed unit 4 〇 and an antenna radiation unit and (10) eight bends have opposite first-surface ribs盥The first side is moved, the metal line 2 is formed on the first surface ι〇ι. The brother-table unit is formed on the first surface 1〇1, and several antennas are radiated and the first is j The metal circuit 20 is located on the upper side and is connected to the plurality of antenna radiating elements 3〇, the base, and the 10-way. For the printed circuit board 'different, it can also be used with the type of earth plate' and the silk plate w can sigh Wei or can, glass fiber or bakelite and other materials; pullable soft board; material ^ (four) machine for or Other materials such as bismuth phthalate (KPET), '', y-imine (PI) metal line 20 for receiving the feed signal from the _feeder 4 to the corresponding plurality of antenna radiant units 3G I, I will, a number of vocations 3Q, ribs from the tree into the όίΐ, converted into a lucky signal. ～, please refer to the "4th figure" is the suppression of the invention The microstrip antenna shown in 200917569 is intended to include a substrate 110, metal lines i2, 13, signal feed UG and slot 15Q. Substrate uQ: antenna radiating unit 111 and second surface 112 'metal line 12 ◦ is formed on the first surface of the first surface. The antenna radiating elements are formed on the first surface (four) 111. The complex metal line 120 is located on the first _# sub-array in an array. Element 130. On the surface 111, the connection The plurality of antennas radiate a single _; flexible two or two =: (four) or 疋L two - B: SI (PET) and other materials Quality. ^ The soil line 1』帛 receives the feed from the signal feed unit and transmits the feed=signal to the corresponding plurality of antenna radiation units (10). ~ Multiple days_unit (10), the rib receives from the metal line (10) Passing the feed signal and converting the feed signal into a wireless signal. ~ The slot 150' is on the first surface ηι, _ destroying the antenna _ _ in the antenna light-emitting unit 130, and also making the intersection Polarization. The shape of the slot (9) may be but not glazed, fine, or _. The method of forming 槪i5Q is a lithography process. Refer to "5A", "5B", " 5C map and 5D map. "Different 5A picture!" and "Pen 闽 ^ "罘冰图" are horizontal cross-polarization feeds obtained by detecting the microstrip antennas at the frequencies of 3.7 GHz and 3.8 GHz. The "redundancy map" is the DD and 3.8 GHz at the frequencies of 3.7 GHz and 3.8 GHz in the cross-polarization gain map of the microstrip antenna for suppressing cross-polarization of the present invention. As can be seen from the figure, in 200917569, when a slot is formed in the antenna radiating element, the horizontal X-forward polarization gain value at the frequency of 3 7ghz and 3 times z B will be averaged off*~. Although the present invention has been disclosed above in the foregoing preferred embodiments, it is not intended to be limited to any of the embodiments of the present invention, and may be used as a modification of the surface of the invention without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is subject to the definition of the patent application specification. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart for suppressing cross polarization in a microstrip antenna of the present invention. The f 2 diagram is a cross-polarization of the microstrip antenna of the present invention, and the flow pattern is a schematic diagram of the microstrip antenna of the present invention which is not inhibited by cross polarization; the second figure is the suppression of the present invention. A schematic diagram of a polarized microstrip antenna'. U-picture is a cross-polarization gain map with a frequency of 3 birds in the unrestricted crossover and a pole; a 5D graph is a horizontal mosquito touch with a frequency of 3 8 GH; The micro-band day 5C image of the cross-polarization suppression of the fine-spectrum antenna detection is a horizontal cross-polarization gain map obtained by detecting the line at a frequency of 3.7 GHz; and the micro-band day 5D diagram for suppressing cross-polarization The horizontal cross-polarization gain map obtained by detecting the line of the invention at a frequency of 3 8 GHz j. [Main component symbol description] 10 Substrate 200917569 20...................Feed into network 30................Entenna light shot Unit 40................signal feed end 101 ...............first surface 102 ........ .......the second surface 110 ...............substrate 111 ...............the first surface 112 ... .........the second surface 120...............feed into the network 130.............. Antenna radiating element 140...............signal feeding end 150...............slot 12