1287374 九、發明說明： 【發明所屬之技術領域】 本案係關於-種無線區域網路系統，尤指—種具有檢測天線 連接狀態之無線區域網路系統。 【先前技術】 /全球絲自由化風_丨卿，加摘際睛及無線通訊 的逄勃發展，通訊已成為繼資訊產業之後最具成紐的高科技領 域。而無線通訊技術的發展，隨著電子資訊及數位紐術突飛猛 進’提供人們可隨時隨地得到各種資訊，包括語音、輯等，未 來更往多媒體影音資訊發展。其中無線區域網路(驗dess L〇cai1287374 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a wireless local area network system, and more particularly to a wireless local area network system having a connection state for detecting an antenna. [Prior Art] / Global Silk Liberalization _ 丨 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The development of wireless communication technology, with the rapid advancement of electronic information and digital technology, provides people with access to a variety of information, including voice, series, etc., anytime, anywhere, and the development of multimedia audio and video information. Among them wireless area network (test dess L〇cai
Area Netw〇rks肌颜）’在無線網際網路使用人口數快速成長 下，全球無線區域網路產量也逐年增加。 請參閱第-圖（a)，其係為習知無線區域網路系統之電路結 構不思圖’如圖所不，無線區域網路系統（以下簡稱肌AN系統） ίο係包含媒體存取控制晶片（MACIC)n、基頻晶片恤灿⑽ 1C) 12以及射頻晶片（RFIC) 13，其一端係與筆記型電腦系統連 (未0示）而另~則與天線Μ連接，該Wlan系統川主 要由天線Μ接收空氣中所傳遞之無線電波，再經由射頻晶片U 將回ν員無、’泉…輯換成低頻信號，轉換後之低齡號將傳送至基 乂員曰曰片12進行解過處理，並由媒體存取控制晶片（胤c ic) 判斷解調後之信號是否為筆記型電腦系統所欲接收的資料 ，如果 1287374 判斷結果為是，則接收下來並傳駐筆記型電腦系統内部。 、、，j WLAN系統1G的另—個功能為將筆記型電腦系統所欲傳 达之貝，’ f先藉由媒體存取控制日日日片n對資料進行運算處理， 再將運算處理後之資料傳送至基頻晶片12進行調變處理，^後藉 由射頻晶片13將資料由低頻信號轉換成高頻信號，並經由天 傳送至空氣中。 睛參閱第-圖⑻，其係為第一圖（a)所示之射頻晶片之電 路結構不意圖。如圖所示，f知射頻晶片13係包含信號傳送電路 3卜信號接收電路132以及切換開關133。 由於饥AN系統iG係為半雙工（half_duplex)射頻通訊系統， …、法同日^進行傳送信號及接收信號的工作，必須分開進行， h·囷（）所示，彳5號傳送電路131及信號接收電路132係使 用同一個天線14來進行信號的傳送及接收。當WLAN I统10之 、項曰曰片13 *傳触號時’切換_ 133將切換至信號傳送電路 ⑶曰端’使仏號傳送電路⑶與天線M電性連接，且媒體存取控 2曰曰片11 (如第一圖⑷所示）將產生控制信號來關閉信號接收 兒路132。反之，當系統1〇之射頻晶片13欲接收信號時， 刀換開關133將切換至信號接收電路132端，使信號接收電路1幻 ”天線Η毛陡連接，且媒體存取控制晶片η將產生控制信號來 關閉信號傳送電路131。 在資訊技術產業及市場層面中，於筆記型電腦裝設WLAN功 1287374 能越來越受到產品製造商及使用者的重視，而目前的^vlan系統 10係以追加附件模組（add_onmodule)的形式設置於筆記型電腦 中，而天線14係藉由電纜（cable)與WLAN系統10之射頻連接 器（未圖示）連接。但是，由於在進行筆記型電腦的組裝工作時， 係以手工組裝的方式將電缦與WLAN系統10之射頻連接器連 接，而以手工組裝的方式將存在著某些風險，例如，容易造成射 頻連接器的損毁、魏並未财與WLAN系統1G之射頻連接器 ^接而造成天線14並未與Μ·系統1G連接的情況，或是組裝 日了因知力不當而造成天線丨4紐。當發生天線14絲與wlan 系統1〇電_鱗，由信號傳送電路⑶所傳送之信號將I法傳 送出去而反射回信號傳送電路131 (如第—圖 造成饥觸系㈣無法正常運作。 士此將 ^ ' tAN系統10的設計並不具有檢測天線是否已經 完成的輯，因此當因天絲正確絲完成而造成 处旦AN糸統10無法正常傳收信號時，維修人員需藉由特殊儀器才 ^里測’而财的解決辦法都是將整個WLAN系統及天線更換， 此將造顧_㈣以及增加祕的成本。 線β Ξ此’-如喃展—射改善上述1知技術缺失，且能檢測天 路Γ祐已㈣貫钱完成之具有檢測天線連接狀態之無線區域網 路糸統，實為目前迫切需決之問題。 J287374 【發明内容】 …本案之主要目的在於提供—種具有檢測天線連接狀態之無線 。區域”.m猎由定喻合器的接收路徑來接收由紋向搞合 器之傳送路徑所輸出之傳送信號之反射錢，以判斷天線是否確 實與無顧域網路纽紐連接，俾解_絲賴域網路系統 因热檢測天線衫確實安裝触計，造絲修上的_度、資源 的浪費以及增加維修的成本等缺點。 =達上述目的’本案之_較廣義實施樣態為提供—種無線區 Γ.=統，其係翻於―電子裝置，該無線區翻路系統係包 二路=1^;—基頻電路；—射頻電路模組，其係與該控制 電===路電軸，雜頻電賴域包含一信號傳送 /傳社號；一_合器，其係包含-傳送路徑及 一接收路徑，且與該# 將鮮雜、卜Γ 路電連接，職勤該傳送路徑 連接於傳送信號輸出；一信號接收電路，其係電 -反射η . M接收㈣雜合11之該触路麵接收之 反射"ί§5虎，其中，兮 n卢來彳 x V %触⑽齡轉送錢及該反射 m仏測雜合器是否與-天線電連接。 為達上述目的，本案另 -辦帥幢/ 、另M、一種射頻電路模組，其係適用於 其係輸出-傳送仲· 人 係包3. 傳送電路， γ Μ 1 11 ’其係包含—傳送路徑及-接收 路径，且與該信號傳送電 及接收 口斧4皇、蔘^电連接，用以藉由該傳送路徑將 说傳迗電路之該傳送信號 仏將從 ’ k唬接收電路，其係電連接於 1287374 信:::中用:::收經由該嶋之該接收路徑所接收之-反射 ^ 、 该射頻電路模組係藉由該傳送信號及該反射信號來 __合器是否與—天線電連接。 由下順示與實施例說明，俾得—更深人之瞭解·· 【實施方式】 體現本轉徵與優闕—些典型實施例將在後段的說明中詳 :匕述。應理解的是本案能夠在不同的態樣上具有各種的變化， ^不脫離本案的範圍，且其中的說明及圖示在本質上係當作說 月之用，而非用以限制本案。 網路為本案第一較佳實施例之無線區域 糸奴,路方塊不意圖。如第二圖⑷所示，無線區域網路 广先2〇係包含媒體存取控制晶片^基頻電❹以及射頻電路 謹23，媒體存取控制晶片21係與基頻電路22及射頻電糊且 之發达器2312及接收器、期電性連接，用以根據不同的運作 狀態來㈣發送||加及減器、2321 __態， 9m苁拉，您勹勹〜______<口口Area Netw〇rks)] With the rapid growth of the wireless Internet population, the global wireless regional network production has also increased year by year. Please refer to the figure - (a), which is the circuit structure of the conventional wireless local area network system. As shown in the figure, the wireless local area network system (hereinafter referred to as the muscle AN system) ίο contains media access control. The chip (MACIC) n, the baseband chip-shirt (10) 1C) 12, and the radio frequency chip (RFIC) 13, one end of which is connected to the notebook computer system (not shown) and the other is connected to the antenna ,, the Wlan system The radio waves transmitted by the air are mainly received by the antenna ,, and then replaced by the radio frequency chip U, and the 'spring' is replaced by a low frequency signal, and the converted younger number is transmitted to the base clerk 12 for solution. After processing, the media access control chip (胤c ic) determines whether the demodulated signal is the data to be received by the notebook computer system, and if the judgment result is 1287374, it is received and transmitted to the notebook computer system. internal. ,,, j WLAN system 1G's other function is to send the notebook computer system to the shell, 'f first through the media access control day and day film n data processing, and then the processing The data is transferred to the baseband chip 12 for modulation processing, and then the data is converted from the low frequency signal to the high frequency signal by the RF chip 13, and transmitted to the air via the sky. Referring to Fig. 8 (8), it is not intended to be a circuit structure of the radio frequency chip shown in the first figure (a). As shown, the RF chip 13 includes a signal transmission circuit 3, a signal receiving circuit 132, and a changeover switch 133. Since the iG system of the hunger AN system is a half-duplex radio frequency communication system, the operation of transmitting signals and receiving signals must be carried out separately, as shown by h·囷(), 彳5 transmission circuit 131 and The signal receiving circuit 132 uses the same antenna 14 for signal transmission and reception. When the WLAN I system 10 transmits the contact number, the switch _ 133 will switch to the signal transmission circuit (3) terminal to electrically connect the nickname transmission circuit (3) to the antenna M, and the media access control 2 The cymbal 11 (as shown in the first figure (4)) will generate a control signal to turn off the signal receiving path 132. On the contrary, when the RF chip 13 of the system 1 wants to receive a signal, the knife change switch 133 will switch to the signal receiving circuit 132 end, so that the signal receiving circuit 1 is singularly connected, and the medium access control chip η will be generated. Control signal to turn off signal transmission circuit 131. In the information technology industry and market level, installing WLAN function 1287374 in notebook computers can be more and more valued by product manufacturers and users, and the current ^vlan system 10 series The add-on module (add_onmodule) is set in the notebook computer, and the antenna 14 is connected to the RF connector (not shown) of the WLAN system 10 by a cable. However, due to the operation of the notebook computer In the assembly work, the electric raft is connected to the RF connector of the WLAN system 10 by hand assembly, and there are certain risks in the manual assembly manner, for example, the RF connector is easily damaged, Wei Weicai The connection with the RF connector of the WLAN system 1G causes the antenna 14 not to be connected to the system 1G, or the antenna is not properly assembled due to improper knowledge. The antenna 14 wire and the wlan system 1 〇 鳞 scale, the signal transmitted by the signal transmission circuit (3) transmits the I method and is reflected back to the signal transmission circuit 131 (as shown in the figure - the hunger system (4) is not functioning properly. The design of the ^ ' tAN system 10 does not have a series to detect whether the antenna has been completed. Therefore, when the correct wire of the TENCES is completed, the maintenance unit needs to use a special instrument. ^The test of the 'finance' is to replace the entire WLAN system and antenna, which will take care of _ (four) and increase the cost of the secret. Line β Ξ ' - - — — — — — — — — — — — It is possible to detect the wireless local area network system with the detection antenna connection status completed by Tianlu Yuyou (4). It is an urgent problem to be solved. J287374 [Invention content] ... The main purpose of this case is to provide The wireless connection of the antenna connection state. The area ".m hunting" receives the reflected signal of the transmission signal outputted by the transmission path of the splicing device to determine whether the antenna is indeed No-domain network New Zealand connection, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The purpose of the present case is to provide a wireless zone =.= system, which is turned over to the "electronic device, the wireless zone turning system is the second road = 1 ^; - the base frequency circuit; a circuit module, which is connected to the control circuit === road electric axis, the miscellaneous frequency electric field includes a signal transmission/transmission number; a _ combiner, which includes a transmission path and a receiving path, and # Connect the fresh and dip roads, the service path is connected to the transmission signal output; a signal receiving circuit is electrically-reflected η. M receives (4) the hybrid 11 of the road surface receives the reflection " § 5 Tiger, where 兮n Lu 彳 x V % touch (10) age transfer money and the reflection m 仏 杂 杂 是否 是否 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In order to achieve the above purposes, the case is another - a handsome building /, another M, an RF circuit module, which is suitable for its output - transmission zhong·human package 3. Transmission circuit, γ Μ 1 11 ' a transmission path and a reception path, and electrically connected to the signal transmission and reception port, and the transmission signal of the transmission circuit is transmitted from the 'k唬 receiving circuit by the transmission path, The system is electrically connected to the 1287374 letter:::::: receives the reflection-receiving ^ via the receiving path of the device, and the RF circuit module uses the transmission signal and the reflected signal to __ Whether it is electrically connected to the antenna. In the following description, the description will be made in detail, and the description will be made in the following description. It should be understood that the present invention can have various changes in different aspects, and does not depart from the scope of the present invention, and the descriptions and illustrations therein are used in the sense of the month rather than to limit the case. The network is the wireless area of the first preferred embodiment of the present invention, and the road block is not intended. As shown in the second figure (4), the wireless local area network includes a media access control chip, a baseband frequency, and a radio frequency circuit. The medium access control chip 21 is connected to the baseband circuit 22 and the radio frequency circuit. And the developed device 2312 and the receiver, the electrical connection, according to different operating conditions (four) send | | plus and minus, 2321 __ state, 9m pull, you 勹勹 ~ ______ < mouth
選擇模式 ------ 發送器運作狀態 檢測天線模式 啟動 傳送通訊模式 啟動 接收通訊模式 關閉 10 1287374 至於，媒體存取控制晶Μ 21及基頻電路22之電路設計原理 及所能達成之目的及功效係已詳述於先前技射，因此不再資述。 而無線區域網路系統20於-般正常運作狀態下，即傳送通訊 模式及接收通訊模式，無線區域網路系統2〇的一端係藉由射頻電 路模組23與麵天線24電性連接，而另_端係藉由媒體存取控 制晶片21與筆記型電腦系統電性連接（未圖示）。 其中，射頻電路模組23係由信號傳送電路231、信號接收電 路232、搞合器233以及頻率產生器234所組成，主要用以將射= 天線24於线中所接收之高頻無線電波轉換成低頻信號，或是將 基頻電路22所傳送之低頻㈣錢繼成高頻無線電波再經由射 頻天線24傳送出去。而麵合器233係為一定向麵合器如，其係 ^含傳送路徑2331及接收路徑2332，傳送路徑2331係用以傳遞 信號傳送電路231所輸出之信號，而接收路徑迎係用以接收射 ^員天、’泉24自空氣中所接收之高頻信號，或是由傳送路徑輸 出後所反射回來之信號。 +頻率產生器234係與信號傳送電路加及信號接收電路说 兒1'生連接肋產生傳送細電路η輸出之·信號所需的頻率 ㈣’舉例而言，調_播（™)所使用的資料傳輸頻率為 _MHZ ’則頻率產生器234需產生1〇〇MHz的頻率信號。 〇。信號傳送電路231係以混波器2311、發送器2312及帶通濾波 為加為主要的構成元件，混波器况雜收基頻電路U所傳 1287374 达之貝料信號’並將該資料信號與頻率產生器234所產生之頻率 信號進行録的運算處理，以整合成—高頻信號，而發送器係用 以將此波杰2311所整合之高頻信號的功率放大至輸出所需的功 率’例如：GSM通訊系統所需的輸出功率為2W，由於高頻信號 進订功率放大程序後，將會產生乡餘轉訊，目此f要藉由帶通 濾波器2313來濾除因功率放大所產生的雜訊，最後，將處理完成 之高頻信號傳輸至定_合器233,並經由定_合器说之傳送 路徑2331輸出。 而信號接收桃232係包含接收器232卜混波器2322以及低 通濾波器2323，接收器2321係用以接收射頻天線％自空氣中所 ‘接收之高·號’或是由傳送路徑2331輸出後所反射回來之信 號，混波器2322係與接收器2321及頻率產生器電性連接， 用以將接收器2321所接收之高頻信號與頻率產生器234所產生之 頻率信號進行姆的處理，軸將高健賴換成低頻信 號’最後，藉由低通渡波器2323將混波器2322整合完成之低頻 信號中不需要的信賴除，以取得所需的信號。 田N系、、先20無法正常傳收信號時，整個^ΑΝ系統％ 需進入檢測天線模式，藉由定向麵合器说傳送信號與接收信號 係使用不同路徑的特色來進一步判斷是否因射頻天線Μ未正罐安 裝完成而造成肌顧_㈣法正常倾錄，在WLAN系統 20進入檢測天線模式下，媒體存取控編2ι將產生控制信號來 1287374 2信號傳送電路231之發送器加以及信號接收電路232之接 收盗2321，亚由信號傳送電路231輪出一測試用的值、、… 中，該傳送信號不需包含資料 —“，初§號，其 原本佶用之m 、，托#u〜、品要使用肌AN系統20 原本使用之v員率信號即可進行 WLAN祕2G之卿電财4” H 24 ^確貧與 、路杈、、且23之定向耦合器233電性連接， 至於信號傳送電路231所輸出之該傳送信號係由定向輕合器233 之傳运路径2331輸出，本案之檢測方式係藉由定向轉合器说之 接收路仅2332來接收該傳送信號由定向搞合器说之傳送路徑 2331輸出後所反射回來的反射信號。 當射頻天線24正確與wlan系統2〇之射頻電路模組力之 定向_合器233連接時，信號傳送電路231所輸出之該傳送信號 輸出後，、會有些稍錢反射回來（如第二圖⑻所示）。反之， 當定向麵合器233未連接射頻天線μ時（如第二目⑷所示）， 該傳送信號輸出後全部的信號都會反射回來（如第二圖⑷所 示）。 在本實施财，本㈣藉由傳送健及反雜號的電壓駐波 比（VSWR)數值來判斷脱频系統2〇是否與射頻天線％連接， 黾壓駐波比的關係式係為= ( Etransmitted +Ereceiver ) /( Etransmitted _ EreceiVer)，其中 Etmnsmitted 代表傳送信號的能 畺’ Ereceiver代表反射信號的能量。當射頻天線24因筆記型電腦 組裝時所發生的失誤或損毁而未與WLAN系統2〇連接時，所有 13 1287374 的傳送信號將全部反射回來，如此—來，傳送信號及反射信號的 VSWR— (Etransmitted+Ereceiver) /0 數值將為 〇〇。 凊參閱第二圖，其係為射頻天線在不同頻率之電壓駐波比之 波形圖，在現行的WLAN系統2〇中，射頻天線24在操作頻率下 的VSWR小於2，即代表射頻天線24與饥你系統2〇處於正常 運作狀態，因此’當饥ΑΝ系統2〇進行檢測天線模式時檢測 VSWR的結果係大於2的情況下，肌必系統將發出一訊息 告知射頻天線24的連接狀態不正f。如此—來，產品維修人員京: 可以輕易的魏WLAN纽Μ無法正賴收錄是目為射頻天 線24未正常連接或是有損毀，只需更換射頻天線24就可解決問 題’而不需更換並沒有損_肌崩纽2()。 /明參閱第四圖’其係為本案第二較佳實施例之無線區域網路 系統之電路方塊示意圖。如圖所示，無線區域網路系統如係包含 媒體存取㈣“21、翻魏22以及棚她23。而射 頻電路权組23係包含信號傳送電路23卜信號接收電路2犯、定 向輕合器233、頻率產生器234、切換開關235以及切換開關挪 所組成。 、、其中，信號傳送電路231之混波器23n、發送器加及帶通 濾波裔2313、㈣接收電路232之接收器、混波器迎以 及低通濾波裔2323、定向執合器MS、頻率產生器、Μ4、媒體存取 控制η日片21 *細電路η之電路設計顧及所能達成之目的及 14 1287374 功效係已詳述於第一較佳實施例中，因此不再費述。Selection mode ------ Transmitter operation status detection Antenna mode Start transmission communication mode Start reception communication mode off 10 1287374 As for the circuit design principle of the media access control transistor 21 and the baseband circuit 22 and the purpose achieved And the efficacy system has been detailed in the previous technique, so it is no longer stated. The wireless local area network system 20 is in a normal operating state, that is, a communication mode and a receiving communication mode, and one end of the wireless local area network system is electrically connected to the surface antenna 24 by the RF circuit module 23, and The other end is electrically connected to the notebook system by the media access control chip 21 (not shown). The RF circuit module 23 is composed of a signal transmission circuit 231, a signal receiving circuit 232, a combiner 233, and a frequency generator 234, and is mainly used for converting the high frequency radio wave received by the antenna 24 in the line. The low frequency signal or the low frequency (four) money transmitted by the baseband circuit 22 is transmitted to the high frequency radio wave and then transmitted through the radio frequency antenna 24. The interface 233 is a fixed-direction combiner, for example, which includes a transmission path 2331 and a reception path 2332. The transmission path 2331 is for transmitting a signal output by the signal transmission circuit 231, and the reception path is for receiving. The high-frequency signal received by the spring, the spring 24 received from the air, or the signal reflected back from the transmission path. + frequency generator 234 is coupled to the signal transmission circuit plus the signal receiving circuit to say that the 1' connection rib generates the frequency required to transmit the signal of the fine circuit η output (4)', for example, the use of tune (TM) The data transmission frequency is _MHZ', and the frequency generator 234 needs to generate a frequency signal of 1 〇〇 MHz. Hey. The signal transmission circuit 231 is a main component of the mixer 2311, the transmitter 2312 and the band pass filter, and the mixed signal is transmitted by the baseband circuit U to transmit the 1287374 signal to the bedding signal and the data signal is transmitted. The frequency signal generated by the frequency generator 234 is recorded and processed to be integrated into a high frequency signal, and the transmitter is used to amplify the power of the high frequency signal integrated by the Boj 2311 to the power required for output. 'For example: the output power required by the GSM communication system is 2W. After the high-frequency signal is subscribed to the power amplification program, the rural transmission will be generated. Therefore, the band-pass filter 2313 is used to filter out the power amplification. The generated noise is finally transmitted to the fixed-frequency combiner 233 and outputted via the transfer path 2331. The signal receiving peach 232 system includes a receiver 232, a mixer 2322, and a low pass filter 2323. The receiver 2321 is configured to receive the RF antenna % from the 'received high number' in the air or output by the transmission path 2331. After the reflected signal, the mixer 2322 is electrically connected to the receiver 2321 and the frequency generator for processing the high frequency signal received by the receiver 2321 and the frequency signal generated by the frequency generator 234. The axis replaces the high-resistance with the low-frequency signal. Finally, the low-pass waver 2323 integrates the undesired trust in the low-frequency signal that the mixer 2322 integrates to obtain the desired signal. When the N-series and the first 20 are unable to transmit signals normally, the entire system must enter the detection antenna mode. The orientation of the transmitted signal and the received signal are different paths to further determine whether the RF antenna is used. Μ If the tank is not installed, the _(4) method is normally dumped. When the WLAN system 20 enters the detection antenna mode, the media access control module 2 will generate a control signal to the transmitter of the 1287374 2 signal transmission circuit 231 and the signal. The receiving circuit 232 receives the pirate 2321, and the sub-signal transmission circuit 231 rotates a value for testing, ..., the transmission signal does not need to contain the data - ", the initial § number, the original used m,, 托# u~, product to use the muscle AN system 20 originally used v rate signal can be used to WLAN secret 2G qing qing 4" H 24 ^ indeed poor, road, and 23 directional coupler 233 electrical connection As for the transmission signal outputted by the signal transmission circuit 231, the transmission signal is output by the transport path 2331 of the directional clutch 233. The detection mode of the present invention is to receive the transmission signal by the directional coupler only 2332. Said clutch after the transmission path 2331 outputs the reflection signal reflected back. When the RF antenna 24 is correctly connected to the orientation _ combiner 233 of the RF circuit module of the Wlan system, after the output signal output by the signal transmission circuit 231 is output, some money will be reflected back (as shown in the second figure). (8) shown). Conversely, when the directional surface combiner 233 is not connected to the radio frequency antenna μ (as shown in the second item (4)), all signals after the transmission signal is output are reflected back (as shown in the second figure (4)). In this implementation, this (4) determines whether the frequency-dividing system 2〇 is connected to the RF antenna % by transmitting the voltage standing wave ratio (VSWR) value of the health and anti-cell number. The relationship between the rolling standing wave ratio is = ( Etransmitted +Ereceiver ) /( Etransmitted _ EreceiVer), where Etmnsmitted represents the energy of the transmitted signal 'Ereceiver' represents the energy of the reflected signal. When the RF antenna 24 is not connected to the WLAN system due to a mistake or damage caused by the assembly of the notebook computer, all the signals transmitted by the 13 1287374 will be reflected back, so that the VSWR of the transmitted signal and the reflected signal is ( Etransmitted+Ereceiver) /0 The value will be 〇〇.第二 Refer to the second figure, which is a waveform diagram of the voltage standing wave ratio of the RF antenna at different frequencies. In the current WLAN system, the VSWR of the RF antenna 24 at the operating frequency is less than 2, that is, the RF antenna 24 and Hungry system 2 is in normal operation, so when the hunger system detects the VSWR when the antenna mode is greater than 2, the muscle system will send a message to inform the RF antenna 24 that the connection status is not correct. . So - come, the product maintenance staff Jing: Can easily Wei Wei Μ Μ can not rely on the inclusion of the RF antenna 24 is not properly connected or damaged, just replace the RF antenna 24 to solve the problem 'without replacement and No damage _ muscle collapse New 2 (). 4 is a circuit block diagram of a wireless local area network system in accordance with a second preferred embodiment of the present invention. As shown in the figure, the wireless local area network system includes media access (4) "21, 翻魏22, and shed her 23. The RF circuit group 23 includes the signal transmission circuit 23, the signal receiving circuit 2, and the directional alignment The 233, the frequency generator 234, the changeover switch 235, and the changeover switch are composed of, wherein, the mixer 23n of the signal transmission circuit 231, the transmitter plus the bandpass filter 2313, and (4) the receiver of the receiving circuit 232, The circuit design of the mixer and the low-pass filter 2323, the directional adapter MS, the frequency generator, the Μ4, the media access control η 片 21 * the fine circuit η take into account the purpose and 14 1287374 It is described in detail in the first preferred embodiment, and therefore will not be described.
;匕貝轭例中’虽wlan系統2〇處於一般正常運作狀態下， 即傳L通雜歧接收相模式時’射頻電路麵U係藉由切換 開關235來導通信號傳送電路议或是信號接收電路加，反之， 田WLAN系統20因無法正常傳收信號而進入檢測天線模式時， 射頻電路模組23需藉__合器233傳送信號與接收信號係使 用不同私的特色來進—步觸是涵賴天線％未正確安裝完 成而k成WLAN系統20無法正常傳收信號。當然，切換開關235 與定向輕合器233的開關狀態需藉由另一個切換開關236根據媒 體存取控制晶Μ的控制錢麵發。至於，舰存取控制晶片 21控制定向輕合器233、切換開關故、發送器2312及接收界則 的開關狀態如下表所述： M 選擇模式 定向耦合器/切換開 發送器運作 接收器運 關235運作 狀態 作狀態 檢測天線模式 定向耦合器 啟動 ---- 啟動 傳送通訊模式 一 ——--------- 切換開關235 —----—. 啟動 ----—. 關閉 接收通訊模式 切換開關235 關閉 啟動 縱上所述’本案之具有檢測天線連接狀態之無線區域網路系 統，藉由定向耦合器傳送信號與接收信號係使用不同路徑的特色 來接收傳送信號輸出後所反射回來的反射信號，以該傳送信號及 15 1287374 該反射b絲觸是卵射頻天縣正確安裝完成而減肌歲 系統無法正常傳收信號，當wlAN系統係騎頻天線24未正常 連接或疋杨毁而無法正常做錢時，祕人貞可㈣的發現 問題所在’且只需更換射頻天線，可減少資源的浪費以及降低維 修的成本。 本案得由熟知此技術之人士任施匠思而為諸般修飾，然皆不 脫如附申請專利範圍所欲保護者。 16 1287374 【圖式簡單說明】 第一圖（a):其係為習知WLAN系統之電路結構示意圖。 —第目（b):其係為第一目（a)所示之射頻晶片之電路結構 示意圖。 第一圖（C):其係第一圖（b)所示之天線並未與ΜΑΝ系 統電性連接時，信號的傳送及反射路徑示意圖。In the case of the yoke yoke, 'when the wlan system 2 is in normal normal operation, that is, when the L-pass heterogeneous receiving phase mode is transmitted, the radio frequency circuit U is turned on by the switch 235 to turn on the signal transmission circuit or signal. The receiving circuit is added. Conversely, when the field WLAN system 20 enters the detecting antenna mode because the signal cannot be normally transmitted, the RF circuit module 23 needs to use the __ combiner 233 to transmit signals and receive signals using different private features. The touch is that the antenna % is not properly installed and the WLAN system 20 cannot transmit the signal normally. Of course, the switching state of the switch 235 and the directional clutch 233 is controlled by the other switch 236 according to the control of the medium access control wafer. As for the ship access control chip 21, the switch states of the directional clutch 233, the switch, the transmitter 2312, and the receiving interface are as follows: M Select mode directional coupler / switch open transmitter operation receiver switch 235 operation status for state detection antenna mode directional coupler start---- start transmission communication mode one---------- switch 235 —----.. start-----. The receiving communication mode switching switch 235 is turned off to activate the wireless local area network system with the detecting antenna connection state in the present case, and the signal is transmitted by the directional coupler and the receiving signal system uses different paths to receive the transmission signal output. The reflected signal reflected back to the transmitted signal and 15 1287374. The reflected b-wire touch is the correct installation of the egg radio frequency county. The system can not normally transmit the signal when the aging system is not properly connected. When Yang is destroyed and cannot make money normally, the secret person can (4) find the problem 'and just need to replace the RF antenna, which can reduce the waste of resources and reduce the maintenance. This. This case has been modified by people who are familiar with the technology, and is not intended to be protected by the scope of the patent application. 16 1287374 [Simple description of the diagram] The first diagram (a): This is a schematic diagram of the circuit structure of the conventional WLAN system. - Item (b): This is a schematic diagram of the circuit structure of the radio frequency chip shown in the first item (a). Figure 1 (C): Schematic diagram of the signal transmission and reflection path when the antenna shown in Figure (b) is not electrically connected to the system.
第一圖（a):其係為本案第一較佳實施例之無線區域網路系統 之電路方塊示意圖。 第二圖⑻：其係為WLAN系統與射頻天線連接時傳送信號 與反射信號之波形圖。 〜 _第二圖（c):其係第二圖⑷所示之射頻電路模組之定向輕 &。。未14天線笔性連接時，k號的傳送及反射路徑示音圖。 第二圖⑷：其係為WLAN系統與射頻天線未連接時傳送作 號與反射信號之波形圖。 、、 第二圖·其係為射頻天線在不同頻率之電壓駐波比之波形固 第四圖:其係為本案第二較佳實施例之無線區域網路系Figure 1 (a) is a block diagram showing the circuit of the wireless local area network system of the first preferred embodiment of the present invention. Figure 2 (8): This is the waveform diagram of the transmitted and reflected signals when the WLAN system is connected to the RF antenna. ~ _Second picture (c): It is the orientation light & of the RF circuit module shown in the second figure (4). . The transmission and reflection path of the k number is not shown when the antenna is not connected by 14 antennas. Figure 2 (4): This is the waveform diagram of the transmitted and reflected signals when the WLAN system is not connected to the RF antenna. The second figure is the waveform of the voltage standing wave ratio of the RF antenna at different frequencies. Fourth figure: it is the wireless local area network system of the second preferred embodiment of the present invention.
頻電路模組之電路方塊示意圖 17 1287374 【主要元件符號說明】 ίο ·無線區域網路糸統 12 :基頻晶片 14 :天線 132 :信號接收電路 20 :無線區域網路系統 22 :基頻電路 231 :信號傳送電路 2312 :發送器 232 :信號接收電路 2322 :混波器 233 :定向耦合器 235 :切換開關 24 :射頻天線 11 :媒體存取控制晶片 13 ·射頻晶片 131 :信號傳送電路 133 :切換開關 21 :媒體存取控制晶片 23 :射頻電路模組 2311 :混波器 2313 :帶通濾波器 2321 :接收器 2323 :低通濾波器 234:頻率產生器 236 :切換開關Circuit block diagram of frequency circuit module 17 1287374 [Description of main component symbols] ίο Wireless local area network 12: baseband chip 14: antenna 132: signal receiving circuit 20: wireless area network system 22: baseband circuit 231 : Signal transmission circuit 2312 : Transmitter 232 : Signal reception circuit 2322 : Mixer 233 : Directional coupler 235 : Diverter switch 24 : RF antenna 11 : Media access control chip 13 • RF chip 131 : Signal transmission circuit 133 : Switching Switch 21: Media access control chip 23: RF circuit module 2311: Mixer 2313: Band pass filter 2321: Receiver 2323: Low pass filter 234: Frequency generator 236: Toggle switch