TW200531344A - Array antenna with adjustable angle - Google Patents

Abstract

The present invention provides an array antenna with adjustable angle, which can be used to set up an array antenna test platform with adjustable angle in different channel environments, e.g. multiple path effect, same frequency interference, etc., in order to test the quality of communication for various types of antennas, thereby provides the best solutions to various communication problems. According to the invention, the test method adopts a conventional base station antenna and a multi-beam array antenna with adjustable angle for comparing the reception qualities at different communication environments and communication systems, wherein a vector signal generator (SMIQ_06B) is used to generate a global system of mobile communication (GSM) signal, and a multi-beam array antenna (MBA) with adjustable angle according to the invention or a conventional antenna is used to receive the best signals selected by a switch (SP8T), which are then transmitted to a vector spectrum analyzer (FSEK-30) for demodulation, and the demodulated data are sent to a computer for analysis in order to obtain the effect on the receptions at different angles and environmental interferences to the reception end.

Description

200531344 玖、發明說明： 【發明所屬之技術領域】 本發明是針對具切換角度之陣列天線所建構之量測平 台，特別著重在儀器的協調及連結、各種收發元件效能評 估’以及具切換角度之多波束陣列天線與收發元件的整合與 設計。此平台可以量測各種具切換角度之多波束陣列天線， 測試不同通訊環境下的通訊狀況，例如多重路徑效應、同頻 干擾......等，為具切換角度之多波束陣列天線量測提供最佳 的解決方案。 【先前技術】 隨著行動通訊系統的日益發展，為提升通訊品質，除了 通《疋技術的不斷提昇夕卜，如何在天線系統實體上獲得最 佳的，此也疋相當重要的課題。加上天線開發技術的成熟， 為了提昇系統效能，各種新^具切換角度之陣列天線不斷的 被開發出來’未來具切換角度之多波束陣列天線系統勢必會 取代傳統天線系統。 〃奐角度之夕波束陣列天線是一種陣列形式的適應 天、、’良八有夕個乍波束場型提供通信時的選擇，來取代傳 、洗天線的寬波束~型，以改善通訊品質及減少多重路徑造成 之訊號衰落，顯著的提昇了系統的效能。 對-般傳統基地台天線而言，通常都具有較寬波束場型 的特性’如圖八所示，在圖中很清楚的可以看到由於傳統基 200531344 地台天，線82寬波束涵蓋範圍場$ 81較廣大，因此受到週遭 由多重路徑及雜訊所造成的干擾信號，嚴重影響整個行動網 路的通訊品質。 而如圖九所示’具切換角度之多波束陣列天線92的多 窄波束場型91及可多波束切換特性，使得可以減少許多不 必要多重路徑及雜訊的干擾，藉此將提升整體通訊品質，在 建構完成具切㈣度之多波束陣列天線測試平台後，我們也 對傳統基地台及且切拖备: 夕 。及八切換角度之多波束陣列天線系統做出了 實際的測試及評估。 在實際的通訊環境甲，基地台與行動台間的通訊常會因 為都市中高樓林立，戎异古 A疋同山專··的障礙物，而產生多重路 徑的干擾’影響了通訊品質。因為具切換角度之多波束陣列 天線（_具有多個窄波數，當—個通道因為多重路徑而產 生通訊品質降低的情形發生時，就可以利用具切換角度之多 波束陣列天線多波束的特點，選擇另一個通訊品質較佳的通 道來進行通訊’所以能有效地避免多重路徑干擾的效應，所 、”刀換角度之多波束陣列天線（祖）的通訊品質會優於傳 統基地台。 ^傳統基地台天線只有一個涵蓋相角範圍為60。的寬波 ^曰使传產生多重路徑干擾的機會增加，但當多重路徑 干擾產生時’則會因為只有單一波束，不像具切換角度之多 200531344 波束陣列天線可以在通 佳通道的特性，所以對200531344 发明 Description of the invention: [Technical field to which the invention belongs] The present invention is a measurement platform constructed for array antennas with switching angles, with particular emphasis on the coordination and connection of instruments, performance evaluation of various transceiver elements, and Integration and design of multi-beam array antennas and transceiver elements. This platform can measure a variety of multi-beam array antennas with switching angles, and test the communication conditions in different communication environments, such as multiple path effects, co-frequency interference, etc., for multi-beam array antennas with switching angles. Testing provides the best solution. [Previous technology] With the increasing development of mobile communication systems, in order to improve the communication quality, in addition to the continuous improvement of communication technology, how to obtain the best antenna system entities is also a very important issue. Coupled with the maturity of antenna development technology, in order to improve system performance, various new array antennas with switching angles have been continuously developed. In the future, multi-beam array antenna systems with switching angles are bound to replace traditional antenna systems. 〃 奂 Angle of the night beam array antenna is an array form that adapts to the sky, and provides a choice when communicating. It replaces the wide beam of the transmission and washing antenna to improve the communication quality and Reducing signal fading caused by multiple paths significantly improves system performance. For a conventional base station antenna, it usually has a wide beam field type. 'As shown in Figure 8, it is clear in the figure that due to the traditional base 200531344 platform sky, the line 82 wide beam coverage The field $ 81 is relatively large, so it is affected by the interference signals caused by multiple paths and noise around it, which seriously affects the communication quality of the entire mobile network. As shown in FIG. 9 ', the multi-narrow beam field type 91 of the multi-beam array antenna 92 with switching angles and multi-beam switchable characteristics can reduce many unnecessary multiple paths and noise interference, thereby improving overall communication. Quality. After constructing a multi-beam array antenna test platform with a high degree of accuracy, we have also prepared for traditional base stations and: The multi-beam array antenna system with eight switching angles was actually tested and evaluated. In the actual communication environment A, the communication between the base station and the mobile station is often caused by obstacles in the middle and high-rise buildings in the city, and different obstacles caused by the same mountain, which affects the communication quality. Because a multi-beam array antenna with a switching angle (_ has multiple narrow wave numbers, when a channel has a reduced communication quality due to multiple paths, the characteristics of a multi-beam array antenna with a switching angle can be used. , Choose another channel with better communication quality for communication ', so it can effectively avoid the effect of multiple path interference. Therefore, the communication quality of the multi-beam array antenna (ancestor) with "knife change angle" will be better than traditional base stations. ^ Traditional base station antennas only have a wide wave covering a phase angle range of 60 °. This increases the chance of multipath interference from transmission, but when multipath interference occurs, it will not have as many switching angles as there is only a single beam. 200531344 Beam array antenna can be used in Tongjia channel characteristics, so

試平台的建立， 們可以藉由具切換角度之多波束陣列天線測 模擬各種不同種類天線和不同通訊環境的通 訊狀況，為各種的通訊問題提供最佳的解決方法。 具切換角度之多波束陣列天線在行動通訊系統的應用 上，亦有以下的優點： (1) 減少同頻干擾： 因冬慧天線可凋整電波輻射場型方向，故可減少外來同 頻干擾及多重路徑造成之訊號衰落。 (2) 增加通道容量及頻譜使用效率： 具切換角度之多波束陣列天線系統可利用所形成的多 個窄波束間的隔離作用，進而達到空間分隔多重存取（Space Division Multiple Access)之功能，創造出較多的通道來 增加通道量及頻譜使用率。 ， (3 )增加系統涵蓋範圍· 200531344 相較於使用 單一全向性天線之傳統系統 在相同發射功 率的條件下’具切換角度之多波束陣列 服務區域擴大而增加系統之涵蓋範圍。 (4)增加通訊安全性： 天線系統可使基地台 *如果具切換角度之多波束陣列天線的輕射場型可以適 當的控制’只鎖住正在傳輸訊號的❹者或設備，則通訊保 密安全性可大幅改善。 ⑸可提昇無線資源（radiQ resQun：e)與終端移動性 (mobility)的管理能力： 具切換角度之多波束陣列天線亦可以用來追蹤使用者 的位置，例如行動地圖資訊系統，所以我們可以利用這個特 點來加強資源頻寬、使用者漫遊以及網路的管理。 【發明目的】 本發明之目的即著重在提供多波束具切換角度之陣列天 線測試平台的建立，為不同類型具切換角度之多波束陣列天 線尋求獲得最佳性能载的m讀得最佳通訊效能， 進而改善傳統基地台多重路徑效應的影響，提升通訊品質， 並以實際里測的數據來模擬和比較各種不同的通訊情況。 【發明内容】 本發明主要包括下列兩項研究： 、 A·運用具士刀換角冑之多^皮束陣列天線於通道預測研究 200531344 A - 1多重路徑效應 將深入研究通信系統中具通道模式之多重路徑衰落，並 研究目標方位角預估，具切換角度之多波束陣列天線之波束 方向控制’以得到最佳通訊品質。 A-2同頻干擾效應 將深入探討於全球移動通訊系統（GSM)系統中，具切換 角度之多波束陣列天線對同頻干擾效應的實質影響，並與傳 統基地台天線比較，經實際量測數據來證實具切換角度之多 波束陣列天線可減少同頻干擾效應。 B·具切換角度之多波束陣列天線收發射機模組關鍵組件研究 將傳統收發元件延伸為配合具切換角度之多波束陣列 天線之多通道架構設計，測試與改進收發元件並將其模組化 實際應用於具切換角度之多波束陣列天線系統。 研究方法為利用開發完成的具切換角度之多波束陣列 天線測试平台，應用於全球移動通訊系統⑽心中，來量測 具切換角度之多波束陣列天線的性能以及對傳統基地台天 線做多重路徑效應和同頻干擾的影響測試比較。為求實驗與 實際情況相符’所以發射端以寬波束場型的發射天線發射和 接收端以具切換角度之多波束陣列天線和傳統基地台天線 接收謂實驗里測所得的數據做進—步的探討與比棱。 除了具切換角度之多波束陣列天線測試平台的建立之 200531344 外’本發明亦包含有下列相關研究目標·· 1. 多波束具切換角度之多波束陣列天線系統的功能測 試； 2. 使用具切換角度之多波束陣列天線系統做各種通訊 系統的測試，如全球移動通訊系統（GSM)、寬頻碼分多重存 取（WCDMA)系統······等； 3·射頻（RF)接收發射量測儀器的測試； 4·通通道模型的建立。 在設計分析原理上，將分為四部分來探討，首先對具切 換角度之多波束陣列天線的特性及優點做簡單的概述，然後 再對具切換角度之多波束陣列天線系統測試平台的實作方 式提出討論，並且對用來估測通訊品質好壞的向量訊號誤差 率（EVM，Error Vector Magnitude)的定義及量測方法做介 紹，最後解釋整個多波束具切換角度之多波束陣列天線測試 平台在執行軟體測試時的整個控制流程。 本發明之具切換角度之多波束陣列天線測試平台的建 構’可以模擬各種不同具切換角度之多波束陣列天線系統和 不同通訊環境的通訊狀況，例如多重路徑效應、同頻干擾··.·. 等’以提供具切換角度之多波束陣列天線及週邊系統元#的 改進方案。 ' 我們實際使用此具切換角度之多波束陣列天線測試平 200531344 台，測試多重路徑效應影響下，對於具切換角度之多波束陣 列天線和傳統基地台天線的通訊品質檢定。我們由實際測試 數據發現具切換角度之多波束陣列天線對於多重路徑效應 的影響較傳統基地台天線更有抵抗的能力，換句話說在此測 試平台的測試結果顯示具切換角度之多波束陣列天線為多 重路徑效應的影響提供了解決的方法。With the establishment of the test platform, we can use multi-beam array antennas with switching angles to simulate the communication conditions of various antennas and different communication environments to provide the best solution for various communication problems. Multi-beam array antennas with switching angles also have the following advantages in the application of mobile communication systems: (1) Reduction of co-frequency interference: Since Donghui antenna can adjust the direction of the radio wave radiation field pattern, it can reduce external co-frequency interference. And multipath fading. (2) Increase channel capacity and spectrum utilization efficiency: A multi-beam array antenna system with a switching angle can take advantage of the isolation between multiple narrow beams formed to achieve the function of Space Division Multiple Access. Create more channels to increase channel volume and spectrum usage. (3) Increase the coverage of the system. 200531344 Compared with the traditional system using a single omnidirectional antenna, the service area of the multi-beam array with switching angle is expanded under the same transmission power, which increases the coverage of the system. (4) Increased communication security: The antenna system enables the base station * If the light field type of a multi-beam array antenna with a switching angle can be appropriately controlled 'only locks the person or equipment that is transmitting the signal, the security of communication confidentiality Can be greatly improved. ⑸It can improve the management ability of radio resources (radiQ resQun: e) and terminal mobility (multi-beam array antenna with switching angle can also be used to track the user's location, such as mobile map information system, so we can use This feature enhances resource bandwidth, user roaming, and network management. [Objective of the Invention] The purpose of the present invention is to focus on the establishment of a multi-beam array antenna test platform with a switching angle, and to seek the best performance for different types of multi-beam array antennas with a switching angle. In order to improve the impact of the multi-path effect of traditional base stations, improve the communication quality, and use actual measured data to simulate and compare various communication situations. [Summary of the Invention] The present invention mainly includes the following two studies: A. Using a sword knife to change the angle of the ^ skin beam array antenna in the channel prediction study 200531344 A-1 multiple path effects will be in-depth study of the communication system with channel mode The multi-path fading is studied, and the azimuth estimation of the target is studied. The beam direction control of the multi-beam array antenna with switching angle is used to obtain the best communication quality. A-2 co-channel interference effect will be deeply explored in the Global System for Mobile Communications (GSM) system. The substantial impact of multi-beam array antennas with switching angles on co-channel interference effects will be compared with traditional base station antennas. The data confirms that multi-beam array antennas with switching angles can reduce co-channel interference effects. B. Research on the key components of the multi-beam array antenna transmitter-receiver module with switching angle. Extend the traditional transceiver components to a multi-channel architecture design that matches the multi-beam array antenna with switching angle. Test and improve the transceiver components and modularize them. It is actually applied to a multi-beam array antenna system with a switching angle. The research method is to use the developed multi-beam array antenna test platform with switching angles and apply it to the heart of the global mobile communication system to measure the performance of multi-beam array antennas with switching angles and make multiple paths to traditional base station antennas. Comparison of the effects and effects of co-channel interference. In order to match the experiment with the actual situation, so the transmitting end uses a wide beam field type transmitting antenna. The transmitting and receiving ends use a multi-beam array antenna with a switching angle and a traditional base station antenna to receive the data measured in the experiment. Explore and compare. In addition to the establishment of a multi-beam array antenna test platform with a switching angle of 200531344, the present invention also includes the following related research objectives: 1. Functional test of a multi-beam array antenna system with a multi-beam switching angle; Angled multi-beam array antenna system to test various communication systems, such as the Global System for Mobile Communications (GSM), Wideband Code Division Multiple Access (WCDMA) system, etc .; 3. Radio frequency (RF) reception and transmission Testing of measuring instruments; 4. Establishment of a channel model. The design analysis principle will be divided into four parts to discuss. First, a brief overview of the characteristics and advantages of multi-beam array antennas with switching angles is made, and then the implementation of the multi-beam array antenna system test platform with switching angles is implemented. The method is proposed for discussion, and the definition and measurement method of the vector signal error rate (EVM, Error Vector Magnitude) used to estimate the quality of communication is introduced. Finally, the entire multi-beam array antenna test platform for switching angles is explained. The entire control flow when performing software testing. The construction of the multi-beam array antenna test platform with switching angle of the present invention can simulate the communication conditions of various multi-beam array antenna systems with switching angle and different communication environments, such as multiple path effects, co-frequency interference ... And so on to provide improved solutions for multi-beam array antennas with switching angles and peripheral system elements. '' We actually used this multi-beam array antenna with switching angles to test 200531344 units to test the communication quality verification of multi-beam array antennas with switching angles and traditional base station antennas under the influence of multiple path effects. We found from the actual test data that the multi-beam array antenna with switching angle has more resistance to multipath effects than the traditional base station antenna. In other words, the test results on this test platform show that the multi-beam array antenna with switching angle Provides a solution for the effects of multiple path effects.

本發明的重點，著重於收發系統及具切換角度之多波束 陣列天線系統的建置，以求達到模擬整個通訊機制的目的， 其設計方法利用自行撰寫的軟體來控制量測試㈣。首先 是以向量㈣產生n產生不同的信號，透過寬波束場型的發 射天線將信號傳送出來，經過具切換角度之多波束陣列天線 的接收後’送至向量頻譜分析儀解調，並利用向量頻譜分析 儀計算其向量訊號誤差率（EVM)作為估測通訊品質的依據。 在模擬過程中，利用馬達帶動具切換角度之多波束陣列天線The focus of the present invention focuses on the construction of the transceiver system and the multi-beam array antenna system with switching angles, in order to achieve the purpose of simulating the entire communication mechanism. The design method uses software written by itself to control the volume test. First, the vector n is used to generate n to generate different signals, and the signals are transmitted through a wide beam field type transmitting antenna. After receiving by a multi-beam array antenna with a switching angle, it is sent to a vector spectrum analyzer for demodulation, and the vector is used to demodulate. The spectrum analyzer calculates its vector signal error rate (EVM) as a basis for estimating communication quality. In the simulation process, a motor is used to drive a multi-beam array antenna with a switching angle.

轉動至不同角度，來模擬行動台移動至具切換角度之多波束 陣列天線不同的方位角，當訊號品質變差時，㈣器自㈣ 以模擬具切換角度之多 各種不同具切換角度之 換，用來找尋通訊品質較佳的通道， 波束陣列天線實際運作之情形，量測 以提供具切換角度之多波束陣 多波束陣列天線品質之好壞 列天線及週邊系統元件的改進方案 最後 利用金屬擋板不同的 擺放位置，模擬多重路徑對 12 '200531344 具切換角度之多波束陣列天線造成的影響，進而與傳統天線 進行比較，測試具切換角度之多波束陣列天線與傳統基地台 對夕重路徑干擾抵抗的程度，並且從測試結果中，證明具切 換角度之多波束陣列天線系統能夠有效的減少經由多重路 徑及同頻干擾所造成的通道衰落之影響。 ^另夕卜，在具切換角度之多波束陣列天線系統測試平台的 實作方式巾用來估測通信品質好壞是以向量訊號誤差率值 疋/、疋義及畺測原理我們也在此加以解釋說明： 向量訊號誤差率值的量測結果可協助工程人員了解數 位调變信號品質，並藉由向量訊號誤差率（謂）量測結果（在 時域或頻域）來找出信號惡化之原因及來源。此一重要量測 指標，已逐漸被納入許多數位通訊系統之規範中，例如全球 移動通訊系統（GSM)、北美數位蜂巢行動⑽此）、低功率行 動電4 (PHS)等,系統均已將向量訊號誤差率（謂）量測值列 為系統標準之一’在本發明的測試系統中便是藉由此量測值 來判斷通訊品質的好壞。 數位凋炎乜唬在本質上是向量調變信號，亦即藉由調變 射頻載波之振幅及相角，可以將位元串流（bit stream)轉 為類比方式傳送出去’因此產生I-"面圖（如圖十.)，此 為極座‘圖的直角表不法。該平面圖上任一點有其對.應的 分量，每個點可代表不同之字符（Symbol); —個字符可 13 200531344 由數個位元組成。而由圓心連到某點所形成向量之相角及向 量大小便代表該點的“狀態”：傳輸其對應字符時的載波振 幅大小及相位。不同的數位調變格式，在I -Q平面圖上，點 的分佈形式亦不同。其形成的圖形稱為狀態圖（State Diagram)或星狀圖（Constel 1 at ion)。圖十一為微波數位通 訊（16QAM)信號之狀態圖範例。向量訊號誤差率（EVM)的量測 則是在I-Q平面上評估理想狀態位置與實際狀態位置間所形 成向量之大小。以圖示說明此一概念，如圖十二為向量訊號 誤差率定義示意圖。圖中有兩個向量，一個是理想信號 (Ideal Signal)，另一個是量測信號（Measured Signal)。 前者向量所對應點之（狀態）位置代表理想上，即表示無外在 干擾、惡化···專因素時，傳輸字符之信號所應對應的狀態 位置。而後者則代表實際示量測結果。這兩個向量點形成了 一個、、誤差向量”（Error Vector );其向量大小即稱為向量 訊號誤差率（EVM)。 一般在儀器中測量的做法是接收到信號後先經過解調 回資料型態，再將解調完的信號經過調變後與原始量測到的 信號做加減比對求出向量訊號誤差率（EVM)的值，在測量儀 器中所顯示向量訊號誤差率的量測值，為一段時間内可.解調 出通訊猝發（burst)信號的累加平均數值，在全球移動通訊 系、’先中最少要在2 0 0個通訊猝發中取一個通訊猝發作為量測 200531344 在全球移動 剛出的向量 出的向量訊 使用，並且用百分比均方根（rms)值作為單位， 通訊系統中可提供通訊的條件下，行動台端所量 訊號誤差率值必須小於22%，在基地台端所量測 號誤差率值必須小於33%。 【實施方式】 多波束具切換角度之多波束陣列天線系統測試平台的實作方式 為了模擬具切換角度之多波束陣列天線系統實際運作； 時的情形’如圖一，所示為整個具切換角度之多波束陣列天春 線的硬體架構圖’整個系統經由電腦來進行控制與量測分 析’首先以向量信號產生器u⑽Q_06B)產生不同的信號 (全球移動通訊系統（GSM)，美規窄頻帶（⑽a)，調幅廣播 ⑽，FM...等)’經由具切換角度之多波束陣列天線12陶 接收透過切換切換器13(Switch(sp8T》送至向量頻譜分析 儀14(FSEK-30)，取出向量訊號誤差率（evm)量測值至電腦 5十刀析通σσ質的好壞，並藉由切換切換器！ 3取得最佳# 通訊品質的波束涵蓋範圍，利用轉台i阶⑽㈣〜加指） 的轉動來模擬行動台的移動，藉以評估不同角度接收及環境 斤4成的〜響，其實際模擬情形如圖二所示，當車子21移 動時基地台22會主動搜尋最佳信號的角度，以獲得較‘好的 通訊品質。 、 我們不僅以此具切換角度之多波束陣列天線測試平台 15 200531344 做多重路徑效應的影響測試，也以具切換角度之多波束陣列 天線測試平台做同頻干擾的影響測試’未來也計畫以此平台 做更多通訊通道的研究，包含各種通訊系統，諸如全球移動 通訊系統（GSM)系統、寬頻分工多重擷取系統（wcdma)系統 等。 而在整個軟體架構方面，除了所有儀器、馬達、和切換 器的基本設定及控料，最重要的即為測試程式的撰寫，如 何達到整個系統的完整性及儀器設備的有效配合，使其將具 、角度之^波束陣列天線系統的效能及優點完整的呈現 出來’為本發明的重點所在，其具切換角度之多波束陣列天 線敕體流程圖如圖三所示： 31開始測試； 32在測試期間，可將馬達設定為隨機轉動或轉動至指定 的角度，以模擬行動台的移動； 33研判通訊品質優劣； 束； 34如果通訊品質變差時便開始找尋最佳通訊品質的波 以及 / 35研判通訊品質是否穩定。 中行動台上鏈至基‘地台 波束陣列天線系統實際Rotate to different angles to simulate different azimuths of the mobile station moving to a multi-beam array antenna with a switching angle. When the signal quality deteriorates, the device automatically simulates a variety of different switching angles with switching angles. It is used to find the channel with better communication quality, and the actual operation of the beam array antenna. Measurements are provided to improve the quality of multi-beam array multi-beam array antennas with switching angles. Improved solutions for column antennas and peripheral system components. Finally, metal shields are used. The different placement positions of the boards simulate the effect of multiple paths on 12 '200531344 multi-beam array antennas with switching angles, and then compare with traditional antennas. Test the multi-beam array antennas with switching angles and traditional base stations against heavy paths The degree of interference resistance, and from the test results, it proves that the multi-beam array antenna system with switching angle can effectively reduce the influence of channel fading caused by multiple paths and co-frequency interference. ^ In addition, the implementation method of a multi-beam array antenna system test platform with a switching angle is used to estimate the quality of the communication. The vector signal error rate is based on the value of 疋 /, the meaning, and the principle of measurement. We are also here. Explain: The measurement results of the vector signal error rate value can help engineers understand the quality of digitally modulated signals, and use the vector signal error rate (referred to) measurement results (in the time or frequency domain) to find signal degradation. The reason and source. This important measurement index has gradually been incorporated into the specifications of many digital communication systems, such as the Global System for Mobile Communications (GSM), North American Digital Cellular Operations, etc., and Low Power Mobile Power 4 (PHS). The vector signal error rate (predicate) measurement value is listed as one of the system standards. In the test system of the present invention, the measurement value is used to judge the quality of the communication. Digital blight is essentially a vector modulation signal, that is, by modulating the amplitude and phase angle of the RF carrier wave, the bit stream can be converted into an analog way and transmitted. 'So I- & quot The surface view (see Figure X.), this is a right angle table for the polar block diagram. Any point on the floor plan has its corresponding component, and each point can represent a different symbol (Symbol); a character can be 13 200531344 consisting of several bits. The phase angle and vector size of the vector formed by connecting the circle center to a point represent the “state” of the point: the magnitude and phase of the carrier amplitude when transmitting its corresponding character. Different digital modulation formats have different points on the I-Q plan. The graph formed by it is called State Diagram or Constel 1 at ion. Figure 11 is an example of the state diagram of a microwave digital communication (16QAM) signal. The vector signal error rate (EVM) measurement measures the magnitude of the vector formed between the ideal state position and the actual state position on the I-Q plane. This concept is illustrated graphically, as shown in Figure 12 for the definition of the vector signal error rate. There are two vectors in the figure, one is the Ideal Signal and the other is the Measured Signal. The (state) position of the point corresponding to the former vector represents ideally, that is, the state position to which the signal of the transmitted character should correspond when there is no external interference or deterioration ... The latter represents the actual measurement results. These two vector points form a "Error Vector"; the size of the vector is called the vector signal error rate (EVM). Generally, the measurement method in the instrument is to demodulate the data after receiving the signal. Type, then add and subtract the demodulated signal and the original measured signal to obtain the vector signal error rate (EVM) value, and measure the vector signal error rate displayed in the measuring instrument Value, which can be demodulated over a period of time. The cumulative average value of the burst signal is demodulated. In the global mobile communications system, at least one of the 200 bursts must be taken as the measurement 200531344. The vector information of the global mobile out of the vector is used, and the percentage root mean square (rms) value is used as a unit. Under the condition that communication can be provided in the communication system, the value of the signal error rate measured by the mobile station must be less than 22%. The error rate value of the measurement number measured at the station must be less than 33%. [Embodiment] The multi-beam array antenna system test platform for multi-beam switching angle is implemented to simulate the switching angle. The multi-beam array antenna system actually works; the situation is shown in Figure 1. The hardware architecture of the entire multi-beam array Tianchun line with switching angle is shown. The entire system is controlled and measured by a computer. First use the vector signal generator u⑽Q_06B) to generate different signals (Global System for Mobile Communications (GSM), US narrowband (⑽a), AM broadcast ⑽, FM, etc.) 'via a multi-beam array antenna with switching angle 12 Tao receives and sends it to the vector spectrum analyzer 14 (FSEK-30) through the switch 13 (Switch (sp8T)), takes out the measured value of the vector signal error rate (evm) to the computer, and analyzes the quality of σσ. By switching the switcher! 3 Get the best # communication quality beam coverage. Use the rotation of the turntable (i-step 指 ~ plus finger) to simulate the movement of the mobile station, in order to evaluate the reception and environmental impact of different angles. The actual simulation situation is shown in Figure 2. When the car 21 moves, the base station 22 will actively search for the best signal angle to obtain better communication quality. We not only use this multi-beam with switching angle Column Antenna Test Platform 15 200531344 Do multi-path effect test, also use multi-beam array antenna test platform with switching angle to test co-channel interference. 'In the future, we plan to use this platform to do more communication channel research, including Various communication systems, such as the Global System for Mobile Communications (GSM) system, the Wideband Division Multiple Capture System (wcdma) system, etc. In terms of the entire software architecture, in addition to the basic settings and materials of all instruments, motors, and switches, the most What is important is the writing of the test program. How to achieve the integrity of the entire system and the effective cooperation of the equipment, so that it can fully display the performance and advantages of the beam array antenna system with angles and angles. The flow chart of the multi-beam array antenna body with switching angle is shown in Figure 3: 31 Start the test; 32 During the test, the motor can be set to rotate randomly or to a specified angle to simulate the movement of the mobile station; 33 Research and judge the quality of communication; Beam; 34 If the quality of communication deteriorates, start looking for the best communication product Wave and / 35 judged communication quality is stable. China Mobile's chain-to-base ‘ground beam array antenna system actual

如此反覆測試便類似實際環境 的通訊，以達到模擬具切換角度之多 的運作情形。 16 200531344 藉由前述之實作方式，發明人採用以下兩實驗來說明測 試結果： 實驗—對不同具切換角度之多波束陣列天線實作適應切 換波束角度的測試 在本次實驗中，希望藉由實驗室現有之儀器設備自行研 究開發的具切換角度之多波束陣列天線測試平台，來模擬具 切換角度之多波束陣列天線系統在現實環境中不同角度波 束範圍的切換能力。 · 在本實驗中我們對四波束的具切換角度之多波束陣列 天線42進行測試，此天線是由4χ2陣列的領結型Tie) 具切換角度之多波束陣列天線42所組成，其外型如圖四所 不。該天線42具有四個不同角度的窄波束，分別#+12。、 + 40 12和―40。，極化方向為垂直極化，所涵蓋相角的範 圍為60。。此實驗只用四個切換通道；測試頻率為i 發射功率為—5dBm;發射端使用波導天線41(Waveguide)來發春 射信號。我們分別將+40。、+12。、—12。和一4〇。依序接至通道 通iL 3以方便尋找最佳信號時通道的切換。 如圖五為整個實驗測試時的情形，開始執行測試時切換 $ 13便會開始切換尋找最佳的波束角纟，當轉台16開始角 為〇寺搜哥到可用角度為12。的通道1，當我們轉動、轉台 16角度至40。時，如圖五a及圖五β為馬達轉至12。及4〇。 17 200531344 時的示思圖（當轉台1 6轉動角度經過】2。時，相當於現實中 行動台移動至基地台的—12。的波束範圍），當轉動角度脫離 12°窄波束的範圍時環境通訊品f變差，隨著轉動角度的改 變也會使得切換器由12。的通道丨切至換-12。的通道2，最後 切換至-40。窄波束範圍。前述轉動角度對量測之向量訊號誤 差率值影響如表"一所列； 轉動角度 脫離12。窄波束範圍 一 12°窄波束範圍 -40°窄波束範圍 向量訊號 誤差率 (EVM) 94. 25rms L'"' 1 14.16rms 15.16rms 表一 經過多次反覆不定角度的移動’都能相當流暢切換至不 同角度的波束範圍’結果證實此具切換角度之多波束陣列天 線42搭配天線系統後確實具有適應現實環境不同信號位置 切換的能力。 實驗二帛擬基地台天線與具切換角度之多波束陣列天線 在現實多重路徑干擾的影響 在本實驗中，希望能夠對具切換角度之多波束陣列天線 及傳統基地台天線在環境因素的影響中做_個比較，我們利 用上個實驗中所使用到的四個波束具切換角度之多波束陣 •200531344 列天線42 α及傳統基地台天線51作為比較，極化方向為 45極化/、有—個涵蓋相角範圍為6〇。的寬波束，轉台^6 角度不動’並利用金屬擔板52模擬多重路徑的干擾，在此 實驗中使用切換器13中的5個通道，其中料〇至通道3 作為具切換角度之多波束陣列天線42的切換用，通道4作 為接收傳統基地台天線51的信號。 實際里測的情形如圖六所示，其發射端為波導天線 4UWaVeguide)發射的全球移動通訊系統訊號，而接 收端為具㈣角度之多波束陣列天線42架設在步進馬達的 轉σ 1 6上在轉〇 1 6刖面為傳統基地台天線51，可以用來 同時比較可切換不同角度波束的具切換角度之多波束陣列 天線42比傳統基地台的通訊品f要來的更佳。轉台旁邊為 切換器13 ’具切換角度之多波束陣列天線42的四個連接埠 (P〇⑴和傳統基地台天線51的-個連接埠（PQrt)都連接到 刀換益13以方便控。另有向量信號產生器工} >向量頻譜 分析儀U，分別連接到發射端和接收端的天線，在此不^ 贅述。 在貫際置測時，用波導天線4丨發射 通訊系統訊號’首先確認具切換角度之多波束陣列天線^ 和傳統基地台天線51都可正常收訊，且維持良好的通訊品 質，其由向量頻譜分析儀14所計算出的向量訊號誤差率都 '200531344 在邊界值之下，例如表二所示； 天線種類 無路徑干擾時 具切換角度之多波束陣列 天線 無路徑干擾時傳統基地台天線 向量訊號 誤差率 1 4. 60rms 1 5.60rms 1 (EVM) J 表-This repeated testing is similar to the communication in the actual environment, so as to simulate the operation situation with many switching angles. 16 200531344 With the foregoing implementation method, the inventor uses the following two experiments to illustrate the test results: Experiment—The test of adapting the switching beam angle to different multi-beam array antennas with different switching angles. In this experiment, I hope that by The existing equipment of the laboratory has researched and developed a multi-beam array antenna test platform with a switching angle to simulate the switching ability of a multi-beam array antenna system with a switching angle in different angle beam ranges in a real environment. · In this experiment, we tested a four-beam multi-beam array antenna 42 with switching angle. This antenna is composed of a 4 × 2 array of bow tie-type Tie) multi-beam array antenna 42 with switching angle. Nowhere. The antenna 42 has four narrow beams with different angles, respectively # + 12. , + 40 12 and ―40. The polarization direction is vertical polarization and the range of phase angles covered is 60. . This experiment only uses four switching channels; the test frequency is i and the transmission power is -5 dBm; the transmitting end uses a waveguide antenna 41 (Waveguide) to send the spring signal. We will each +40. , +12. , —12. And a 40. Connect to the channels in sequence. Connect iL 3 to facilitate channel switching when finding the best signal. Figure 5 shows the situation of the whole experimental test. When the test is started, switching $ 13 will start to switch to find the best beam angle. When the starting angle of the turntable 16 is 0, the search angle is 12 and the available angle is 12. Channel 1, when we turn, the turntable is angled from 16 to 40. At this time, the motor turns to 12 as shown in Fig. 5a and Fig. 5. And 40. 17 200531344 Schematic diagram (when the rotation angle of the turntable 16 passes by 2), which is equivalent to the beam range of the mobile station moving to the base station in the range of -12. In fact, when the rotation angle leaves the range of the narrow beam of 12 ° The environmental communication product f becomes worse, and the change of the rotation angle also causes the switcher to change from 12. Switch the channel to -12. Channel 2 and finally switch to -40. Narrow beam range. The effect of the aforementioned rotation angle on the measured vector signal error rate value is as listed in Table 1; the rotation angle deviates from 12. Narrow Beam Range-12 ° Narrow Beam Range -40 ° Narrow Beam Range Vector Signal Error Rate (EVM) 94. 25rms L '"' 14.14rms 15.16rms The beam range switched to different angles' results confirm that the multi-beam array antenna 42 with switching angles indeed has the ability to adapt to the switching of different signal positions in the real environment after matching the antenna system. Experiment two: The effect of pseudo-base station antennas and multi-beam array antennas with switching angles on multipath interference. In this experiment, we hope to be able to affect the environmental factors of multi-beam array antennas with switching angles and traditional base station antennas For comparison, we use the multi-beam array of the four beam-beam switching angles used in the previous experiment. • 200531344 column antenna 42 α and traditional base station antenna 51 for comparison. The polarization direction is 45 polarization. One covers a phase angle range of 60. Wide beam, turntable ^ 6 angle does not move 'and use metal stretcher 52 to simulate multipath interference. In this experiment, 5 channels in switcher 13 are used, of which channel 0 to channel 3 are used as a multi-beam array with switching angle. The antenna 42 is used for switching, and the channel 4 is used to receive the signal of the conventional base station antenna 51. The actual measured situation is shown in Figure 6. Its transmitting end is a global mobile communication system signal transmitted by a waveguide antenna (4UWaVeguide), and the receiving end is a multi-beam array antenna with a wide angle. 42 is mounted on the stepper motor. Σ 1 6 The traditional base station antenna 51 is used on the front side of the camera, which can be used to compare the multi-beam array antenna 42 with switching angles that can switch between different angle beams at the same time. It is better than the communication product f of the traditional base station. Next to the turntable are the four ports of the switcher 13 ′ multi-beam array antenna 42 with switching angle (P0⑴ and one port (PQrt) of the traditional base station antenna 51) are connected to the knife changer 13 for easy control. Another vector signal generator} > The vector spectrum analyzer U is connected to the antenna of the transmitting end and the receiving end respectively, which will not be repeated here. During the interposition measurement, the waveguide system 4 is used to transmit the communication system signal. It is confirmed that both the multi-beam array antenna with switching angle ^ and the traditional base station antenna 51 can receive signals normally and maintain good communication quality. The vector signal error rates calculated by the vector spectrum analyzer 14 are both at the boundary value of '200531344'. Below, for example, as shown in Table 2. Antenna type Multi-beam array antenna with switching angle when there is no path interference. Traditional base station antenna vector signal error rate without path interference 1 4. 60rms 1 5.60rms 1 (EVM) J Table-

然後加上金屬擋板5 2以製造多重路徑的效應，如圖七 所示’把金屬擋板5 2放在反射波和直接波的路徑相位差為 半波長的地方，這時金屬擋板52會產生反射波和金屬擋板 52邊緣效應所產生的繞射波，此時接收天線所接收到的電場 強度總合為Then add a metal baffle 5 2 to create the effect of multiple paths. As shown in Figure 7, 'Place the metal baffle 5 2 at a half-wavelength phase difference between the path of the reflected wave and the direct wave. At this time, the metal baffle 52 will The reflected wave and the diffraction wave generated by the edge effect of the metal baffle 52 are generated. At this time, the total electric field strength received by the receiving antenna is

Ereceive - E直接波+ &反射波七E繞射波 而此時直接波和反射波及繞射波有相消的作用，使得傳Ereceive-E direct wave + & reflected wave seven E diffracted wave. At this time, direct wave and reflected wave and diffracted wave have a destructive effect, making the transmission

統基地台的收訊品質變的極差不可辨認，由向量頻譜分析儀 14所計算出的向量訊號誤差率非常大，代表此時傳統基地台 天線51的收訊品質非常差。但由於具切換角度之多波束陣 列天線42具有窄波束寬及可切換適應性的優點，所以由向 量頻譜分析冑14戶斤計算出的向量訊號誤差率仍然可以維丰 才目$不錯的通訊品質。其比較如表三所示： t """間 I. ^ 天線種類 有路徑干擾時 具切換角度之多波束陣列 天線 有路徑干擾時傳統基地台天The received signal quality of the traditional base station becomes extremely poor. The error rate of the vector signal calculated by the vector spectrum analyzer 14 is very large, which means that the received signal quality of the traditional base station antenna 51 is very poor at this time. However, because the multi-beam array antenna 42 with switching angle has the advantages of narrow beam width and switchable adaptability, the vector signal error rate calculated by vector spectrum analysis 户 14 households can still maintain good communication quality. . The comparison is shown in Table 3: t " " " Between I. ^ Antenna type When there is path interference, multi-beam array with switching angle Antenna When there is path interference, traditional base station antenna

20 *20053134420 * 200531344

所以，由此次測試實驗結果可得知，因為可切換不同角 度波束的具切換角度之多波束陣列天線42包含多個窄波 束，相較於傳統基地台天線51的單一寬波束，可以減少多 重路徑干擾的效應，而大大提升了通訊品質。Therefore, it can be known from the results of this test experiment that the multi-beam array antenna 42 with switching angles that can switch between different angle beams includes multiple narrow beams. Compared with the single wide beam of the traditional base station antenna 51, the multiple beams can be reduced. The effect of path interference greatly improves communication quality.

本發明之多波束具切換角度之多波束陣列天線測試平 台的建立，進而可以模擬各種不同種類天線和不同通訊環境 的通訊狀況，例如多重路徑效應……等。我們實際量測多重 路徑效應影響下，對於多波束具切換角度之多波束陣列天線 42和傳統基地台天線51的通訊品質敎，我們發現多波束 具切換角度之多波束陣列天線42對於多重路徑效應的影響 較傳統基地台天線51更有抵抗的能力，換句話說在此測試 平台的測試結果顯示多波束具切換角度之多波束陣列天線 42為多重路徑效應的影響提供了解決的方法。 【特點及功效】 試’已具有相當程度的測試能力。加上整個具切換角度之多 波束陣列天線測試平台在有規劃性的建構下，對於個別儀器 在本發明中，已具有測試不同具切換角度之多波束陣列 天線應用於現實環境模擬以及與傳統基地台天線比較之能 力’對於不同具切換角度之多波束陣列天線開發過程中.的測 21 200531344 及程式碼進行模組化，使得整體測試平台在未來效能的提昇 及設備的擴充上，提供相當完整容易的升級方式。實際上， 本發明具有以下優點： A.提供具切換角度之多波束陣列天線系統模擬與測試的環境 各種天線產品在開發之初，為提昇產品性能必定要經過 相當嚴格的測試與模擬，優良客觀的測試環境便成了最迫切 需要的一部分’因此具切換角度之多波束陣列天線測試平台 之建構，為不同具切換角度之多波束陣列天線提供了所需的 · 測試環境，以解決不同具切換角度之多波束陣列天線系統的 測试需求。 B·通道因素對具切換角度之多波束陣列天線影響的測試 實際使用金屬檔板來模擬多重路徑效應，及利用不同發 射信號源來模擬雜訊及同頻干擾，以測試通信通道中不同干 擾源對具切換角度之多波束陣列天線造成的影響。 C·節省實驗成本及增加客觀性 · 在真實情況下具切換角度之多波束陣列天線系統的測 試二不僅耗費資源、人力’加上環境的不定因素相對的也提 二量測的困難度及客觀性，具切換角度之多波束陣列天線測 *、平口利用有限的空間力σ上客觀的條件因素下，降低了量測 時不必要的干擾及人力、資源的浪費。 D·高度的擴充性能 22 •200531344 為使整體多波束智慧型天測試平台，具有因應不同具切 換角度之多波束陣列天線及環境的測試需求，在軟硬體建構 過程中都經過嚴謹的設計及規劃，經過軟體及硬體的模組化 後，皆能有效迅速的透過軟體及硬體設備上的提升，提供更 具效能的測試能力。 上列详細說明係針對本發明之一可行實施例之具體說 明，惟該實施例並非用以限制本發明之專利範圍，凡未脫離 本發明技藝精神所為之等效實施或變更，均應包含於本案之 _ 專利範圍中。 【圖式簡單說明】 圖一為本發明具切換角度之多波束陣列天線測試平台硬 體架構圖； 圖二為該具切換角度之多波束陣列天線波束的可切換性 示意圖； 圖一為省具切換角度之多波束陣列天線軟體流程圖； # 圖四為本發明4x2陣列具切換角度之多波束陣列天線結 構示意圖； 圖五為本發明實驗一的架構圖； 圖五A為實驗_的轉台轉動嘗的動作示意圖； 圖五β為實驗—的轉台轉動-4(Γ的動作示意圖； 圖六為實驗二的架構圖； 23 •200531344 圖七為實驗二增加金屬檔板的架構圖； 圖八為傳統基地台寬波束示意圖； 圖九為具切換角度之多波束陣列天線窄波束示意圖； 圖十為本發明的Ι/Q信號圖； 圖十為本發明的微波數位通訊（16QAM)星狀圖；以及 圖十一為本發明的向量訊號誤差率定義示意圖。 【主要部分代表符號】The establishment of a multi-beam array antenna test platform with a switching angle of the multi-beam of the present invention can further simulate the communication conditions of various antennas and different communication environments, such as multiple path effects. We actually measured the communication quality of multi-beam array antenna 42 with multi-beam switching angle and traditional base station antenna 51 under the influence of multi-path effect. We found that multi-beam array antenna 42 with multi-beam switching angle has multiple path effects. The effect of the antenna is more resistant than that of the traditional base station antenna 51. In other words, the test results on this test platform show that the multi-beam array antenna 42 with multi-beam switching angle provides a solution for the impact of multi-path effects. [Features and effects] The test 'already has a considerable degree of testing ability. In addition, the entire multi-beam array antenna test platform with switching angles has a planned construction. For individual instruments in the present invention, it has already tested different multi-beam array antennas with switching angles for simulation in real environments and with traditional bases. The ability to compare antennas' for the development of different multi-beam array antennas with different switching angles. The test 21 200531344 and the code are modularized, so that the overall test platform provides a fairly complete improvement in future performance and equipment expansion. Easy upgrade method. In fact, the present invention has the following advantages: A. Provide a multi-beam array antenna system simulation and test environment with switching angles. At the beginning of development of various antenna products, in order to improve product performance, it must undergo quite strict tests and simulations, which are excellent and objective. Test environment becomes the most urgently needed part. Therefore, the construction of a multi-beam array antenna test platform with switching angles provides the required test environment for multi-beam array antennas with different switching angles to solve different switching problems. Test requirements for multi-beam array antenna systems at different angles. B. Testing of the influence of channel factors on multi-beam array antennas with switching angles Actually use metal baffles to simulate multiple path effects, and use different transmit signal sources to simulate noise and co-channel interference to test different interference sources in the communication channel Impact on multi-beam array antennas with switching angles. C. Save experimental costs and increase objectivity. In the real situation, the test of a multi-beam array antenna system with a switching angle not only consumes resources, manpower, and environmental uncertainties. It also increases the difficulty and objectivity of the measurement. The multi-beam array antenna with switching angle measurement *, and the flat port uses limited spatial force σ on objective conditions, reducing unnecessary interference and waste of manpower and resources during measurement. D. High degree of expansion performance 22 • 200531344 In order to make the overall multi-beam intelligent sky test platform, it has the testing requirements of multi-beam array antennas and environments with different switching angles, rigorous design and After planning, after the software and hardware are modularized, they can effectively and quickly improve on software and hardware equipment to provide more efficient testing capabilities. The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the scope of the patent of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention should include In the scope of the _ patent in this case. [Brief description of the drawings] FIG. 1 is a hardware architecture diagram of a multi-beam array antenna test platform with a switching angle according to the present invention; FIG. 2 is a schematic diagram of the switchability of the multi-beam array antenna beam with a switching angle; FIG. Multi-beam array antenna software flow chart for switching angles; # Figure 4 is a schematic diagram of the structure of a 4x2 array multi-beam array antenna with switching angles according to the present invention; Figure 5 is a block diagram of Experiment 1 of the present invention; Figure 5 is a schematic diagram of the experiment of the turntable rotation -4 (Γ); Figure 6 is the structural diagram of Experiment 2; 23 • 200531344 Figure 7 is the structural diagram of adding a metal baffle in Experiment 2; Figure 8 is Schematic diagram of the wide beam of a traditional base station; Figure 9 is a diagram of the narrow beam of a multi-beam array antenna with a switching angle; Figure 10 is a diagram of the I / Q signal of the present invention; Figure 10 is a star diagram of the microwave digital communication (16QAM) of the present invention; And Figure 11 is a schematic diagram of the definition of the vector signal error rate of the present invention. [The main part represents the symbol]

1通道 2通道 11向量信號產生器 12具切換角度之多波束陣列天線 13切換器 14向量頻譜分析儀 15電腦 16轉台 · 21車子 22基地台 3 1〜35動作流程圖 41波導天線 ， 42具切換角度之多波束陣列天線 51傳統基地台天線 24 -200531344 52金屬擋板1 channel 2 channel 11 vector signal generator 12 multi-beam array antenna with switching angle 13 switcher 14 vector spectrum analyzer 15 computer 16 turntable 21 car 22 base station 3 1 ~ 35 operation flowchart 41 waveguide antenna, 42 switch Angled multi-beam array antenna 51 Traditional base station antenna 24-200531344 52 Metal bezel

2525

Claims (1)

•200531344 拾、申請專利範園： 具切換角度之陣列天線，包括： 向量信號產生器，用來產生 發射端以將信號傳送出去； 水座生不问的信號，並連接一 具切換角度之多波束陣列天線 信號； ’接收發射端所發出 —轉台’承載具切㈣度之多波束陣列天線進行轉 動’以模擬行動台的移動； 切換器，控制轉台之轉動角度； -向量頻譜分析儀’由具切換角度之多波束陣列天線 接收信號量取向量訊號誤差率量測值； 上-電腦’分析向量訊號誤差率值以判斷通訊品質的好 壞，並可控制上述各裝置的工作流程。 2.如中請專利範圍第，項所述之具㈣角度之陣列天線， 其中该發射端為波導天線。 3·如巾請專利範圍第1項所述之具切換角度之陣列天線， 其中該具切換角度之多波束陣列天線為4x2陣列領結型 具切換角度之多波束陣列天線。 4·如申請專利範圍第！項所述之具切換角度之陣列禾線， 其中在具切換角度之多波束陣列天線前方設置有一傳統 基地台天線。 申明專利範圍第1項或第4項所述之具切換角度之陣 26 200531344 列天線，其中在發射端與具切換角度之多波束陣列天線 之間設置有金屬擋板，以模擬多重路徑的干擾。• 200531344 Patent and application Fanyuan: Array antenna with switching angle, including: Vector signal generator, used to generate the transmitting end to transmit the signal; The signal generated by the water seat is not connected, and a number of switching angles are connected Beam array antenna signal; 'Receiving and transmitting end-turntable' bearing multi-beam array antenna with rotation degree to rotate 'to simulate the movement of the mobile station; switcher, control the rotation angle of the turntable;-vector spectrum analyzer' by The received signal amount of the multi-beam array antenna with the switching angle is taken as the measurement value of the vector signal error rate; the upper-computer 'analyzes the value of the vector signal error rate to determine the quality of the communication, and can control the work flow of the above devices. 2. The angled array antenna according to item 1 of the Chinese Patent Application, wherein the transmitting end is a waveguide antenna. 3. The array antenna with switching angle as described in item 1 of the patent scope, wherein the multi-beam array antenna with switching angle is a 4x2 array bow tie type multi-beam array antenna with switching angle. 4 · If the scope of patent application is the first! The array line with switching angle according to the item, wherein a traditional base station antenna is arranged in front of the multi-beam array antenna with switching angle. Announced the array of switching angles in the patent scope No. 1 or 4 of 26 200531344 antennas, in which a metal baffle is installed between the transmitting end and the multi-beam array antenna with switching angles to simulate multipath interference . 2727