A7 B7 五、發明説明（1) <一）先前技術 當達摘》ί電波之極化(poUrizat ion)方式一般有線性（iinear)極化與 …圓形(circular)極化，而線性極化波最常用的又分爲水平(horizontal)極 化與垂直(vertical)極化兩種極化方向’或介於兩者間其他極化方向之政 。對單一線性極化方向的目#天緣而言，要獲致雷達單在不同極化波方向 摩生的影響，一般均利用目標天線繞雷達革轴向旋轉，以模提所需極化方 向電波。針對此測試需求，其需要有能控制司標天線旋轉(rotation)的機 械轉台及控斜耝件。幹有餐形極化功能特性的黍達測試天線，要獏致聲達 革的解極化效爲(如?〇181^231；〖011)或雷達革介入而產生雷達波橢面極化轴 長比(axial ratio)變化彰響，一般受限於輸入目標天線之耄波信號多爲 線性極化，以致傳统上均用棋擬目標繞軸向快速360β連續旋轉，去棋擬 提供測試所需之圃形極化電我(如<1'丄丄7〇找在!5<:丨印^以0厶"31^3欠司出 版之Microwave Antenna Measurements書中有關Radpae Measurements聿 節中所提>，而不同於線性極化電波之目標需在極化方向固定之需求，此 導致目標天線需具能控制天線36〇*連續快速旋轉的機械轉台及控制組件 的需求。 ' (二乂發明目的： ‘ 利用線性極化電波在寬頻範困量測圓形極化電波受雷達革影響，簡化 測試設備硬品需求。 ------ί JC裝------訂 着— ' · (請先Μ讀背面之注f項再填寫本頁) 經濟部中央揉率局貝工消費合作社印製 張 紙 本 逍 準 揉 家 >7 I釐 公 97 2 (•K 式 1) A7 _____B7 __ 五、發明説明（2 ) (三） 發明特點： -- 利用極化方向互相垂直的兩種線性極牝重波，再利用软鳢分析程式及 额外的參考信號線，直接量》f和計算分析雷達革對®形極化t波4偏極化 效應。 (四) 發明内容： ⑴基本理論 雷達革嘗波特性測試中輸入電波極牝方式一般有線性極化 (11|16打卩〇131^泣1；1〇11)和圓形極化（<^|*<；1113{?<>131^201〇11)*_者 均難以如第一明一般化之電場公式表示如下： = j 你)j c〇s( ωί + &) Ey~^yt\co&(,^t+Sx-¥S) 其中Ι·£κ)|和1办σ|分别爲χ和y極化方向之電場振幅；如+知和 时+办(办=& + 5)則分别爲電波角頻率ω在任一時刻t時，X和y極化 方向之電場相位- (欠式1)經過簡單的運算仍滿足一般的橢圓形公式，在CK式1)中 當δ=〇時，t場爲不臧時間改變方向冬線性極化；當丨位〇|=丨办且 9〇,時，電場爲在xy截面上各方向乎均振择梱同之曲形極化》 當琍試重波爲線性極化時，雷達萆所需主要的性能琍試爲不同t 波在不同極化方向所造成之彩睿，其中最重要的極化方向爲水平極化 方向（horizontal polarization)與垂直極化方向〈vertical poUrization)，亦有極少數特定極化方向則視待殊需求而定。這些 不同極化方向<獲致，一舦利用可定位旋轉台去旋轉單端輸入線性極 化天線於所需極化方向而達成。 % 當測辞電波爲圓形極化時，當達革之解極化現象 (depoUrUation)會造成電波極化特性改變，此種理趄圓形極化波經 遇着達軍後其極祀特性會改變之示意阃如索二翳，違些電波極化特性 之改變寸藉量測偏極化波之“轴長比(axi?l ratio)，，而得到，一般此 電波極化轴長比之傳统量測方式，乃是利用可360〃連續快速旋轉平 本紙張尺度適用中國國家標牟（CNS > A4规格（2丨〇><297公兼） (請先聞讀背面之注名事項再填窝本頁) 訂 M濟部中央揉率局貝工消费合作社印隶 A7 B7 五、發明説明（3 ) 台去改變單壤輸八緣性極化天線的位置，同時量取此天線極化位置改 變時之電碡最大分量與最小分量之比値而得到。此方式需要能3'60* 連續快速旋轉之轉台與控制機構。 理論上，如果在電場分佈上（即如第一圈之Xy平面上)任取彼此垂 直的兩方向軸(如X秘和y袖），在此兩方向分别量取其貧場大小随時間 改變之最大值如|及〇|和I石卩°1及兩電場在任Θ 一時刻所量取之相位差5 ，則根據已推導之理論公式 #長比: \Α + α + ίΒ2+{Α-€γ I /4 + (7-λ/·5*2 >4 — C)2 ： 軸長比(以dB表示)=20 log(轴長比） (公式2) (請先聞讀背面之注4m·項再填寫本頁) 經濟部中央標率局貝工消费合作社印裝 其中4 = |及〇1》；5=_4Er〇[x|你<?|xcos厶；C=|办〇|2。若占=〇 ,則電 波極化特性爲線性極化其轴長比爲OC ;若|及〇[ = |坊〇|且在=±90。，則電 波極化&性爲_形極化其轴長比爲1 ; 一般橢圓極化之麵長比即介於j 和〇C之闓。 由於雷達軍對電波_之影響其振幅(amplitude >表減與相位(phase} 廷遘可分開處理再综合計算，坟假設兩極化方向彼弗垂直之兩個線性 極化波，其未受雷達萆影響前之電場極化公式分别表示如(公式”中 之兩黨場分臺，當經遇當達軍時，其電場分量則分别如下式 Ex =|^|cos(o/ + <5ir + Ai) By = |j5^|cos(<»i + & +<5 + Ay) ’ " 其中及M表示在化方向產生之振幅傳輸量及相位廷 遲量；及Ay奏示在y極作方向產生之振幅傳餘量及相位延遲量 。在(公式3)中，由於雷達革所造成之相位影響全部包含在Δχ和中 ，故決定電波極化方式之5爲定値，此δ値可在經遇雷達革之命計入 亦寸在穿過雷達革之後計入，均不影響理論計算結果。另外由於在很 寬的操作鵝寬中，兩固定之相對輸入信號相位，要保持同相位（in phase)很容易，但要保持頻寬中每一頻率之兩端相對相位爲9〇* (公式3> "- 本紙張尺度適用中國國家榡準（CNS ) A4规格（2丨〇><297公釐> «·*部申央揲準局貝工消费合作社印裝 A7 B7 五、發明説明（4 ) -則相當困雕》故要量測雷達單對®形極化波造成之影響，我們可用, 極化方向彼此垂直但同相位（即公式1中之5 = 0)之線性極化波，其經 遇雷達軍之場如式3)，則其通遇雷達單後，在考量圓形極化波所 需额外計入之J = 90o的相位偏移補償後' 橢明偏極化波之軸長比可由 (么、式2)得出，只不過其中/ =丨^| ; β = _2^卜丨; C=1仏| »至於要董取(Ay-Ax)之相位差，可藉另一顧外固定長度之 麥考信號線之介入，分别量取沒有雷達單及加上雷達軍時，比較發射 天緣擊自jilftQree SJace>傳輸色經垒今信號線傳輸至接收天線兩 者的摘位差，再將有ϊτϋϋί雷邊革诗，分相減 Ϊ則得雷達軍在不同極作方向所造成之相位延遲Ay和Αχ 〇其理論説 明如下： 設在任一時刻tl，量測沒有雷達革時，X桎化方命之電場相位經 自由空間和經參考信號線之相位分别爲叫+心和叫+心，其中扣爲 自由空間而5«爲麥考信號線不同路徑所造成之相位延遲，其均與時 間無闕且環境路徑固定則為周定值，在此狀況下，兩不同路捏之梱位 差爲;當在時词t2時，加上寅達罩糞測，此時兩不同路徑之 相傳分别爲叫+1+Δχ和时2+t，此時兩不同路徑之相位差爲 (心-心)+知。將有當達革與沒有臂達革所量取之相位差相減則得單 獨由雷達萆介入所造成的相位延遲Δχ。同理，在y極化方向亦可得到 _•獨由當缚軍介\所造成的相位笔遲。 种於圏形極化電波需求，從發射端模擬目標同時傳送兩枉化方向 彼此垂直之線性極化重波信號，於沒有或加装雷逮軍情形下，經接收 端測試天線並同時經一额外的參考信號線送入接收系统同步量測分析 ，利用前述理論方法可得雷達革介入對两形極化電波所造成之軸長比 變化》 (2)技術内容 ^ 本發明利用寬類雙脊天線(tjoubU-ridged horn)畲發射天線，並 將微波源之信號輸出，一方面遠過等比功率分路器（power divider) ，將兩大小相同相位相同之電波，分剩同時輸入此發射天線兩個垂直 輸入端，一個走爲水平極化方向輪入以Η表之，广姻定爲垂直極化方 向輸入以V表之；同時也另外提供電波信號輸入參辜信號線以r表之。 本紙張尺度適用中國國家揉準（CNS ) A4规格（210X297公釐） — nn Kll· n^irn. n n n n n n (請先閲讀背面之注意事項再填寫本頁) 經濟部中央揉準局貝工消费合作社印装 386163 A7 B7 五、發明説明（5 ) 發射電波信號在测試接收端分刹以相對之極化天線接收，麥考信號則. 直接經麥考線，三组接收信號同時輸入接收端之路分析儀量湔之。 分别利用沒有雷達單時接收天線之黃測值，設水平量測值振幅大 小爲而相位爲Λ/，垂直量測爲思，和，麥考量測值爲和有雷 達軍時接收天線之量測值，設水平量測値烏&和技，垂直量測值爲 匙和袼，參考量測値爲方;和户/，量測方式與接線示意圖如第三两與 第四调；則圓形極化電涑經過雷達軍後之概明形霆波極化軸長比，代 …j-' I y. 入現有埋綸公式，其中在本發明中推導使用之 係數爲 Λ_ ((Β^/Ε；)Υ , - 进 / Er、) C-(i^r))2 , , ^{Byf/Er )j D-%P^-Ti)-{PW-Pr) γ\(ρ^^ρ·)-(Ρχ-ρ^ } * B = -2-Ja x x sinZ> » 在上列欠式中所用之A、C、D係歡舆(公式2)中一般理論所洧公式 之主要差别，乃是本發明t之係數經過輿參考信號值之相比舞一 (normalize)^M^it(calibration)，施消除董树過程中發教波源棒幅 或栢位變動所造成之费響誤差。係數&相正弦函iuu而非(公式2)中 之餘弦函數cos，係因量辦時兩垂直输入電波同相位，要轉換爲等效 爾形極化波，需麟外加入相位差妁補償之故β 另外上列公式所用之振幅以電場大小表之，若以功率表之則振幅 大小值需間根號；而此么、式乃假設分别量測無當達軍或有雷達軍時* f發射端之三個信號同步，另外接收端之三组量測值亦同步取値，若受 限於量神I敦傳或儀表無法同步但量螂切換開鼷能固定遇期取樣量測， 則將取樣時間差異舆操作頻率換算代入相位量埘值予以褚償，亦可得 出所f量測之結果。 本纸張尺度適用中國國家揉準（CNS ) A4规格（210X297公釐〉 ϋ··· In ml HL Ha·— -an·— imemmmw .- aaBi·— n^i i yim% {請先閱讀背面之注$項再填寫本頁) 五、發明説明（6 ) 386163 A7 B7 【實例1 -- 本發明之方法技術，已應用於本單位雷達軍的電波特性量測上。 圈式説明 第一圖爲一般擴圆形極化之電場分佈示意瞄。 第二圈爲一般理想圓形極化波，經過雷達革後，會產生解極化波之偏極化 效應示砉蘗。矣申(1>爲進入雷達軍之前的電波行途方向U2)爲 (1)之波前(wavefrcmt) ; (3>爲（1)之波在(2)之波前截面上的電場 極化方向分伴；⑷爲测試雷達單；（5)爲波經遇當邊尋後之方向偏 折示意；（β)爲波經遜雷達革後平行<2)之波前截面上的重場極化方 向分佈p , 第三两爲沒有雷達罩時，電波輪入輸出及信號量測示意圏。其中(a)爲電 波信號源组件；（b)爲等比功率分路器；（c)爲發射天線；（tf)爲接 咚天線；（e)爲向量網路分析儀；（f)爲參考信號線；爲水平量 測電場振幅；（/½)爲水平量測相位；（瓜)爲垂直量測貧場振幅； CM爲垂直量測相位；（汾)爲參考量例電場振幅；（pr>爲參考量測 相位。 第四贓爲加上當達單時，重波輸入輸出及信號量測示意釅。其中⑷爲蝴 試雷達軍；U)爲霣波信號源组件；（b)爲等比功率分路器；（c)爲 鮝射天線；⑷爲接收天線；（e)爲向量網路分析儀；⑴爲參考信 號線；（私）爲水乎量琍電場振幅；（埸）爲水平量鲥栢位；（科) 爲垂直量螂電場振幅I (役）爲垂直量測相位；（五;)爲參考量測^ 場振幅；（P/)爲參考量測相位》 ---. t^n i^^-ϋ— 1--LI n^i I 1--! an ϋ κϋ (請先閱讀背面之注$項再填寫本頁) 經濟部中夬橾準局負工消费合作社印*. 本紙張尺度適用中固國家橾牟（CNS )从胁< 21〇><297公兼）A7 B7 V. Description of the invention (1) < 1) Prior art Dang Da Di "PoUrizat ion polarization method generally has linear (iinear) polarization and ... circular (circular) polarization, and the linear pole The most commonly used wave is divided into two polarization directions of horizontal polarization and vertical polarization, or other polarization directions between the two. In the case of a single linear polarization direction, in order to obtain the influence of the radar single in different polarized wave directions, the target antenna is generally rotated around the radar axis in order to extract the radio waves in the desired polarization direction. . To meet this test requirement, it is necessary to have a mechanical turntable and a tilt control unit that can control the rotation of the logo antenna. A radar test antenna with a meal-shaped polarization function must have a depolarization effect of Sonar (such as? 〇181 ^ 231; 〖011) or radar wave elliptic polarization axis The axial ratio changes dramatically. Generally, the chirped wave signal input to the target antenna is mostly linearly polarized, so traditionally, the chess target is used to rotate 360 ° continuously around the axis quickly. The garden-shaped polarized electricity (such as <1 '丄 丄 7〇 can be found in! 5 < 丨 ^^ 0 厶 " 31 ^ 3 in the Microwave Antenna Measurements book published by the Secretary about Radpae Measurements 聿It is different from the requirement that the target of linearly polarized radio waves needs to be fixed in the polarization direction, which results in the need for a target antenna with a mechanical turntable and control components that can control the antenna 36 ° * continuous and fast rotation. '(二 乂The purpose of the invention: 'Using linearly polarized radio waves to measure circularly polarized radio waves in a wide frequency range is affected by radar leather, which simplifies the hardware requirements of testing equipment. '(Please read the note f on the back before filling in this page) Printed on paper by Zhuozhe Xiaozhunjia> 7 I centimeter 97 2 (• K type 1) A7 _____B7 __ V. Description of the invention (2) (3) Features of the invention:-Use of polarization directions perpendicular to each other Two kinds of linear polarized gravitational waves, and then use the soft palate analysis program and additional reference signal lines to directly measure f and calculate and analyze the effects of radar polarization on the shape-polarized t-wave 4 polarization. (4) Summary of the invention: ⑴ Basic theory In the radar wave characteristics test, the input radio wave poles are generally linearly polarized (11 | 16 dozens 卩 131; 011) and circularly polarized (< ^ | * <; 1113 {? ≪ > 131 ^ 201〇11) * _ are difficult to express as the first generalized electric field formula is as follows: = j 你) jc〇s (ωί + &) Ey ~ ^ yt \ co & (, ^ t + Sx- ¥ S) where I · £ κ) | and 1 do σ | are the electric field amplitudes in the directions of χ and y polarization, respectively; such as + 知 和 时 + 办 (办 = & + 5) then The electric field phase of the X and y polarization directions at any time t, respectively, at the radio wave angular frequency ω-(under equation 1) still satisfies the general elliptical formula after a simple operation. In CK equation 1) when δ = 0 , T-field is winter linear polarization without changing direction in time;丨 position 〇 | = 丨 and 9.0, when the electric field is in all directions on the xy cross section, the same curved polarization is selected. When the test gravity wave is linearly polarized, the radar requires the main The performance test is Cairui caused by different t-waves in different polarization directions. The most important polarization directions are horizontal polarization and vertical polarization (vertical poUrization). There are also a few specific polarities. The direction of change depends on the specific needs. These different polarization directions are achieved by using a positionable turntable to rotate a single-ended input linear polarized antenna in the desired polarization direction. % When the measured radio wave is circularly polarized, the depolarization phenomenon (depoUrUation) of Dag will cause the polarization characteristics of the radio wave to change. The indication of the change is like cable two, which is contrary to the change of the polarization characteristics of the radio wave. The "axi ratio" of the polarized wave is measured, and it is obtained that, generally, the radio wave polarization axis-length ratio The traditional measurement method is to use 360〃 continuous and fast rotation of the paper size to apply Chinese national standards (CNS > A4 specifications (2 丨 〇 > < 297)) (Please read the note on the back first Please fill in the details on this page.) Order the A7 B7 of the Shelling Consumer Cooperative of the Central Ministry of Economic Affairs of the Ministry of Economic Affairs of the People's Republic of China. 5. Description of the invention (3) Change the position of the octagonal polarized antenna in the single soil, and measure this. When the polarization position of the antenna is changed, the ratio of the maximum electrical component to the minimum electrical component is obtained. This method requires a turntable and control mechanism capable of 3'60 * continuous and fast rotation. In theory, if the electric field distribution (ie, as the first On the Xy plane of the circle), take any two directions axis (such as X secret and y sleeve) that are perpendicular to each other. Measure the maximum value of the lean field size over time, such as | and 〇 | and I 卩 1 ° and the phase difference 5 between the two electric fields at any time Θ, according to the theoretical formula that has been derived #length ratio : \ Α + α + ίΒ2 + {Α- € γ I / 4 + (7-λ / · 5 * 2 > 4 — C) 2: Axial length ratio (expressed in dB) = 20 log (axis length ratio) ( (Formula 2) (Please read the note 4m · item on the back before filling out this page.) 4: | and 〇1 "printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs; 5 = _4Er〇 [x | 你 < ? | xcos 厶; C = | 办 〇 | 2. If occupancy = 〇, the polarization characteristic of the radio wave is linear polarization and its axial length ratio is OC; if | and 〇 [= | | 〇 | and at = ± 90. , The polarization of the radio wave is _-shaped, and its axial length ratio is 1. Generally, the face-to-length ratio of elliptical polarization is between 和 and 0C. Due to the influence of the radar force on the radio wave, its amplitude (amplitude) > Table subtraction and phase can be processed separately and then comprehensively calculated. It is assumed that the two linearly polarized waves with two polarization directions perpendicular to each other and Biff are perpendicular. The formula of the electric field polarization before being affected by radar chirp is expressed as ( In the "formula" of the two party fields, when encountering the army, The field components are as follows: Ex = | ^ | cos (o / + < 5ir + Ai) By = | j5 ^ | cos (< »i + & + < 5 + Ay) '" where M Denotes the amplitude transmission amount and phase delay amount generated in the direction of polarization; and Ay shows the amplitude transmission margin and phase delay amount generated in the direction of the y pole. In (Formula 3), the phase effect due to the radar revolution All of them are included in Δχ and S, so it is determined that 5 of the radio wave polarization mode is fixed. This δ 値 can be counted into the radar after passing through the radar, and does not affect the theoretical calculation results. In addition, in a wide operating goose width, it is easy to maintain two phases of the fixed relative input signal phase in phase, but it is necessary to maintain the relative phase of the two ends of each frequency in the bandwidth to 90 ° (formula 3 > "-This paper size applies to China National Standards (CNS) A4 specifications (2 丨 〇 > < 297 mm > «· * Ministry of Shenyang Standards Bureau Shellfish Consumer Cooperatives printed A7 B7 V. Description of the invention (4)-It is quite sleepy "Therefore, to measure the effect of a radar pair on a ®-shaped polarized wave, we can use that the polarization directions are perpendicular to each other but in the same phase (that is, 5 = 0 in Equation 1). Polarized wave, which meets the radar field, as shown in Equation 3), after passing through the radar list, after considering the phase offset compensation of J = 90o which is additionally included in the circular polarized wave, the elliptically polarized wave The axis-to-length ratio of the polarized wave can be obtained from (?, Equation 2), except that / = 丨 ^ |; β = _2 ^ 卜 丨; C = 1 仏 | »As for the phase of (Ay-Ax) Poor, you can take the intervention of another McCoy signal line with a fixed length to measure the absence of the radar sheet and the addition of the radar army, and compare the launch of the sky edge and hit the jilftQree SJace > transmission The difference between the disparity between the transmission of the signal line and the receiving antenna, and then there will be 边 τϋϋί Lei Biange Poetry, and the phase separation and subtraction will get the phase delays Ay and Αχ caused by the radar army in different directions. The explanation is as follows: Suppose that at any time t1, when measuring without radar, the phases of the electric field phase of X 桎 huafangfang through free space and through the reference signal line are called + heart and called + heart respectively, where the buckle is free space and 5 «is the phase delay caused by the different paths of the McCaw signal line, all of which are independent of time, and the environmental path is fixed at a weekly fixed value. In this situation, the difference between the two paths is: At t2, with the Yinda faecal test, the two different paths are called + 1 + Δχ and 2 + t, respectively. At this time, the phase difference between the two different paths is (heart-heart) + known. There will be When the phase difference measured between Dag and Armless Dag is subtracted, the phase delay Δχ caused by the radar 萆 intervention alone can be obtained. In the same way, it can also be obtained in the y polarization direction. The resulting phase pen is delayed. It is based on the requirements of the 圏 -shaped polarized wave, and it is transmitted from the transmitting end to simulate the target at the same time. The linearly polarized heavy wave signals whose two polarization directions are perpendicular to each other, in the absence of or with the addition of Lei Junjun, test the antenna at the receiving end and simultaneously send it to the receiving system through an additional reference signal line for synchronous measurement and analysis. Theoretical methods can be used to obtain the change of the axial length ratio of the two-shaped polarized radio waves caused by radar interfering. (2) Technical content ^ The present invention uses a wide-type dual-ridge antenna (tjoubU-ridged horn) to transmit the antenna, The signal output, on the one hand, is far beyond the power divider of equal proportions. It sends two radio waves of the same size and the same phase into the two vertical input ends of the transmitting antenna at the same time. One goes in the direction of horizontal polarization and turns in. For example, Guangyin is set to use V as the input for the vertical polarization direction; at the same time, it also provides radio signal input to the signal line of the participant as r. This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) — nn Kll · n ^ irn. Nnnnnn (Please read the notes on the back before filling this page) Printed 386163 A7 B7 V. Description of the invention (5) The transmitted radio wave signal is received by the opposite polarized antenna at the test receiver, while the McCao signal is directly transmitted through the McCao line. Three sets of received signals are simultaneously input to the receiver. The road analyzer weighs it. Use the yellow measurement value of the single-time receiving antenna without radar, set the amplitude of the horizontal measurement value as phase and the phase as Λ /, and the vertical measurement as thinking, and The measured value is set to horizontal measurement 値 & 和 技, the vertical measurement value is the key and 袼, the reference measurement 値 is the square; and the household, the measurement method and wiring diagram are shown in the third two and the fourth key; After the circular polarized electric field passes through the radar army, the shape-to-wave polarization axis-length ratio is obtained, and is replaced by j- 'I y. Into the existing formula, where the coefficient used in the present invention is Λ_ ((Β ^ / Ε;) Υ,-进 / Er,) C- (i ^ r)) 2,, ^ (Byf / Er) j D-% P ^ -Ti)-{PW-Pr) γ \ (ρ ^ ^ ρ ·)-(Ρχ-ρ ^) * B = -2-Ja xx sinZ > »The A, C, and D used in the above formulae are the main formulas in Huanyu (formula 2). The difference is that the coefficient of t according to the present invention is compared with the reference signal value, which is normalized ^ M ^ it (calibration), which eliminates the trouble caused by the change in the wave amplitude or the throne of the wave source during the process of removing the tree. Error. Coefficient & phase sine function iuu instead of cosine function cos in (equation 2), Because the two vertical input radio waves are in the same phase when measuring, it is necessary to add phase difference 妁 compensation to convert into the equivalent meridian polarized wave. In addition, the amplitude used in the above formula is expressed by the electric field. In the table, the magnitude of the amplitude needs to be a radical; then, the formula is based on the assumption that the three signals at the transmitting end are synchronized when there is no army or radar army. F The three sets of measurement values at the receiving end are also measured. Synchronous acquisition, if limited by the measurement of I, or the instrument cannot be synchronized, but the measurement of the beetle switch can be fixed, the sampling time measurement can be replaced by the conversion of the sampling time difference and the operating frequency into the phase value. The measurement result can be obtained. This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) ϋ ··· In ml HL Ha · — -an · — imemmmw .- aaBi · — n ^ ii yim% {Please read the note on the back before filling this page) 5. Description of the invention (6) 386163 A7 B7 [Example 1-The method and technology of the present invention has been applied to the measurement of the radio wave characteristics of the radar unit of this unit The first figure shows the electric field distribution of general circular polarization The second circle is a generally ideal circularly polarized wave. After the radar revolution, the polarization effect of the depolarized wave will be shown. Yu Shen (1 > is the direction of the radio wave before entering the radar army U2) Is the wavefront of (1) (wavefrcmt); (3 > is the polarization of the electric field of the wave of (1) on the section of wavefront of (2); ⑷ is the test radar sheet; (5) is the wave meridian The direction deflection after the side search is shown; (β) is the distribution of the polarization direction p of the heavy field on the wavefront section parallel to the wave after the radar < 2), and the third two are the radio waves without the radome In-wheel output and signal measurement are shown. Among them, (a) is a component of the radio wave signal source; (b) is an equal power splitter; (c) is a transmitting antenna; (tf) is a connecting antenna; (e) is a vector network analyzer; (f) is Reference signal line; is the horizontal measurement electric field amplitude; (/ ½) is the horizontal measurement phase; (melon) is the vertical measurement lean field amplitude; CM is the vertical measurement phase; (fen) is the reference quantity example electric field amplitude; ( pr > is the reference measurement phase. The fourth is to add the input and output of the heavy wave and the signal measurement signal when the order is added. Among them, 试 is the butterfly radar unit; U) is the component of the 霣 wave signal source; (b) is Equal power splitter; (c) is a radio antenna; ⑷ is a receiving antenna; (e) is a vector network analyzer; ⑴ is a reference signal line; (private) is the amount of electric field amplitude; (埸) Is the horizontal measurement of cypress position; (family) is the vertical measurement of the beetle electric field amplitude I (service) is the vertical measurement phase; (five;) is the reference measurement ^ field amplitude; (P /) is the reference measurement phase》- -. t ^ ni ^^-ϋ— 1--LI n ^ i I 1--! an ϋ κϋ (Please read the note on the back before filling in this page) The Ministry of Economic Affairs, China ’s Prospective Bureau Off-Work Consumer Cooperatives Print *. Paper suitable for the solid national scale Shu Mu (CNS) from the flank < 21〇 > < 297 and male)