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id="h22xkho" class="twoCol"><div id="7ysjbyf" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_tianxianyk/">天線</a>?<a href="http://www.cdcfah.com/cp/third-tianxianyk_txtxhv/">通信天線</a>?河南車(chē)載天線歡迎來(lái)電泉州市天陸通信科技供應(yīng)</p><div id="pyi3hzm" class="leftbox clearfix"><h1>河南車(chē)載天線歡迎來(lái)電泉州市天陸通信科技供應(yīng)</h1><div id="nceo7er" class="proBig"><div id="87solnu" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422094453986_qztl_2203183.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gaskxzq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422094453986_qztl_2203183.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="os8suln" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>福建省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河南車(chē)載天線,天線</p><p><span>***更新：</span>2021-01-27 05:05:09</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jdaxu3e" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">泉州市天陸通信科技有限公司</a></p><p><span>聯(lián)系人：</span>景經(jīng)理</p><p><span>郵箱: </span>3131314848@qq.com</p><p><span>電話: </span>18520272999</p><p><span>傳真: </span>0595_22002867</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0595-22001867</p><p><span>地址: </span>福建省泉州市豐澤區(qū)北峰工業(yè)區(qū)豐盛路20號(hào) </p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="me8uahj" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="t8ik2fc" class="box"><p><p> WIFI天線的方向性是怎樣的?無(wú)線電發(fā)射機(jī)輸出的射頻信號(hào)功率，經(jīng)過(guò)饋線（電纜）輸送到天線，由天線以電磁波方式輻射出去。電磁波抵達(dá)接納地址后，由天線接下來(lái)（只是接納很小很小一部分功率），并經(jīng)過(guò)饋線送到無(wú)線電接納機(jī)。可見(jiàn)，天線是發(fā)射和接納電磁波的一個(gè)主要的無(wú)線電設(shè)備，沒(méi)有天線也就沒(méi)有無(wú)線電通訊。天線種類(lèi)繁多，以供不一樣頻率、不一樣用處、不一樣場(chǎng)合、不一樣請(qǐng)求等不一樣情況下運(yùn)用。關(guān)于眾多種類(lèi)的天線，進(jìn)行恰當(dāng)?shù)姆诸?lèi)是必要的：按用處分類(lèi)，可分為通訊天線、電視天線、雷達(dá)天線等；按作業(yè)頻段分類(lèi)，可分為短波天線、超短波天線、微波天線等；按方向性分類(lèi)，可分為全向天線、定向天線等；按外形分類(lèi)，河南車(chē)載天線，可分為線狀天線，河南車(chē)載天線、面狀天線等；等等分類(lèi)。發(fā)射天線的基本功能之一是把從饋線獲得的能量向周?chē)臻g輻射出去，基本功能之二是把大多數(shù)能量朝所需的方向輻射。筆直放置的半波對(duì)稱(chēng)振子具有平放的“面包圈”形的立體方向圖。立體方向圖雖然立體感強(qiáng)，但制作艱難，圖b與圖c給出了它的兩個(gè)主平面方向圖，平面方向圖描繪天線在某指定平面上的方向性，河南車(chē)載天線。從圖b能夠看出，在振子的軸線方向上輻射為零，比較大輻射方向在水平面上；而從圖c能夠看出。采用智能天線的基站可以獲得接收信號(hào)的空間特征矩陣，由此獲得信號(hào)的功率估值和到達(dá)方向。河南車(chē)載天線</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南車(chē)載天線,天線" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422094453986_qztl_2203183.jpg"></div><p> 多頻天線是汽車(chē)用戶(hù)對(duì)移動(dòng)通話質(zhì)量及行駛安全要求的發(fā)展而衍生的,它可以將,，例如:平板計(jì)算機(jī)、智能型手機(jī)、汽車(chē)導(dǎo)航機(jī)等等GPS功能和dualbandWiFi/Bluetooth功能同時(shí)需要時(shí)多頻天線的特性微型化的多頻芯片天線具有獨(dú)特的頻率調(diào)整組件設(shè)計(jì)，可輕易的調(diào)整共振頻率具有優(yōu)良的隔離度在不同頻段間(例如:GPS和WiFi頻段)當(dāng)溫度改變時(shí)，具有低的頻率變化值厚度薄、重量輕(9mg)符合RoHS與無(wú)鹵規(guī)范適用于SMT制程**的設(shè)計(jì)與獨(dú)有的制造流程。福州天線在任何無(wú)線電通信設(shè)備中，總是存在將電磁能輻射到空間并從空間接收電磁能的設(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南車(chē)載天線,天線" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_1900394.jpg"></div><p> 玻璃鋼天線比較大的優(yōu)勢(shì)抗腐蝕，壽命長(zhǎng)鋁板、鋼板等傳統(tǒng)天線用資料為金屬資料，在耐酸、堿、鹽、以至耐腐蝕性方面，顯有及作為非金屬介質(zhì)復(fù)合資料的SMC。美國(guó)Pikington實(shí)驗(yàn)室用紅外線分析SMC資料的外表，發(fā)現(xiàn)其外表由添加劑、樹(shù)脂、極細(xì)酸鈣填料所掩蓋、具有較好的耐酸、耐水、耐腐蝕性，用此資料制成的天線反射解決了傳統(tǒng)金屬資料天線易腐蝕的缺點(diǎn)，在沿海區(qū)域，多雨，潮濕的區(qū)域以及多酸雨的區(qū)域，SMC模壓天線的這種而腐蝕的優(yōu)點(diǎn)尤顯突出。美國(guó)波德林公司做過(guò)條件更嚴(yán)苛的防腐實(shí)驗(yàn)。在50℃的環(huán)境高溫下，將SMC模壓天線試樣置于130種高腐蝕性的化學(xué)品環(huán)境中，結(jié)果表明，實(shí)驗(yàn)樣品*有少許改動(dòng)，或沒(méi)有改動(dòng)。一般的鋁板天線在沿海區(qū)域少則2—3年，多則4—6年。</p><p> 四、GPS天線的性能影響GPS天線性能的主要是以下幾個(gè)方面：1、陶瓷片：陶瓷粉末的好壞以及燒結(jié)工藝直接影響它的性能?，F(xiàn)市面使用的陶瓷片主要是25×25、18×18、15×15、12×12。陶瓷片面積越大，介電常數(shù)越大，其共振頻率越高，接受效果越好。陶瓷片大多是正方形設(shè)計(jì)，是為了保證在XY方向上共振基本一致，從而達(dá)到均勻收星的效果。2、銀層：陶瓷天線表面銀層可以影響天線共振頻率。理想的GPS陶瓷片頻點(diǎn)準(zhǔn)確落在，但天線頻點(diǎn)非常容易受到周邊環(huán)境影響，特別是裝配在整機(jī)內(nèi)，必須通過(guò)調(diào)整銀面涂層外形，來(lái)調(diào)節(jié)頻點(diǎn)重新保持在。因此GPS整機(jī)廠家在采購(gòu)天線時(shí)一定要配合天線廠家，提供整機(jī)樣品進(jìn)行測(cè)試。3、饋點(diǎn)：陶瓷天線通過(guò)饋點(diǎn)收集共振信號(hào)并發(fā)送至后端。由于天線阻抗匹配的原因，饋點(diǎn)一般不是在天線的正**，而是在XY方向上做微小調(diào)整。這樣的阻抗匹配方法簡(jiǎn)單而且沒(méi)有增加成本。*在單軸方向上移動(dòng)稱(chēng)為單偏天線，在兩軸均做移動(dòng)稱(chēng)為雙偏。4、放大電路：承載陶瓷天線的PCB形狀及面積。由于GPS有觸地反彈的特性，當(dāng)背景是7cm×7cm無(wú)間斷大地時(shí)，patch天線的效能可以發(fā)揮到。雖然受外觀結(jié)構(gòu)等因素制約，但盡量保持相當(dāng)?shù)拿娣e且形狀均勻。盡量不要總是拆卸天線，日久容易造成接觸不良產(chǎn)生高駐波，影響機(jī)器壽命。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南車(chē)載天線,天線" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422024553695_qztl_8905960.jpg"></div><p> GPS系統(tǒng)精度高、可一連導(dǎo)航，有很強(qiáng)的抗干擾本領(lǐng)更重要的是它可以提供七維的時(shí)空位置速度信息，在帆海導(dǎo)航中發(fā)揮著重要作用，據(jù)正大信維小編了解，很難想象哪一條船舶不裝備GPS導(dǎo)航系統(tǒng)和裝備部署，GPS導(dǎo)航在航海領(lǐng)域的應(yīng)用非常重要。GPS航海導(dǎo)航用戶(hù)繁多，其分類(lèi)標(biāo)準(zhǔn)也各不相同，若根據(jù)航路類(lèi)型分別、GPS航海導(dǎo)航可以分為五大類(lèi)：遠(yuǎn)洋導(dǎo)航、海岸導(dǎo)航、港口導(dǎo)航、內(nèi)河導(dǎo)航、湖泊導(dǎo)航。不同階段或地區(qū)，對(duì)航行安全要求也因環(huán)境差別而不同，但都是為了保證**小航行交通，有用地利用日益擁擠的航路，保證航行安全，提高交通運(yùn)輸效益，節(jié)省能源。根據(jù)導(dǎo)航系統(tǒng)的功能分別有以下幾類(lèi)：1、自主導(dǎo)航自主導(dǎo)航系統(tǒng)適于上述五種航路的任何一種，它基本上是一種單純的導(dǎo)航體系，其主要特性是*向用戶(hù)提供位置、航速、航向和時(shí)間信息，也可包括海圖航跡顯示，不需通信系統(tǒng)。適用于任何海面、湖面和內(nèi)河上航行的船舶，從大型遠(yuǎn)洋貨輪到私家游艇。2、港口管理和進(jìn)港引導(dǎo)這種系統(tǒng)主要用在港口/碼頭的船舶調(diào)度管理、進(jìn)港船舶引導(dǎo)，以確保港口/碼頭航行的安全和秩序。該系統(tǒng)需要雙向數(shù)據(jù)/語(yǔ)音通訊，以便于領(lǐng)航員引導(dǎo)船舶，港區(qū)情境/海圖顯示，以表明停泊的船舶和可利用的進(jìn)港航線，避免。天線問(wèn)題是時(shí)變電磁場(chǎng)問(wèn)題的一種特殊形式。云浮4G天線</p><p style="text-indent:25px">4G天線可分為長(zhǎng)波4G天線、超長(zhǎng)波4G天線、中波4G天線、短波和超短波4G天線、微波4G天線;河南車(chē)載天線</p><p> WIFI天線戶(hù)外的應(yīng)用:我司戶(hù)外WIFI天線商品已廣泛應(yīng)用于景區(qū)內(nèi)。風(fēng)景區(qū)和自然保護(hù)區(qū)、濕地等區(qū)域的特殊性，地理位置上散布相對(duì)渙散。并且通常有修建、水域或山巒相隔；景區(qū)內(nèi)的文物古跡通常制止拉線鉆洞等工程性損壞，因此選用無(wú)線局域網(wǎng)技能建立無(wú)線網(wǎng)絡(luò)監(jiān)控體系，成為景區(qū)安全監(jiān)控體系建造的優(yōu)先。需求選用安穩(wěn)可靠的無(wú)線WIFI天線商品迅速完成實(shí)時(shí)圖畫(huà)監(jiān)控，以監(jiān)控野生動(dòng)物活動(dòng)狀況和成長(zhǎng)狀態(tài)、植物成長(zhǎng)狀況、操控風(fēng)景區(qū)人流、氣候地理?xiàng)l件，避免應(yīng)急事情發(fā)作。天線設(shè)備可靠性高，返修率極低，簡(jiǎn)直無(wú)保護(hù)成本；適合戶(hù)外惡劣環(huán)境，可完成非視距即有阻擋傳輸。河南車(chē)載天線</p><p style="text-indent:25px">泉州市天陸通信科技有限公司是一家有著雄厚實(shí)力背景、信譽(yù)可靠、勵(lì)精圖治、展望未來(lái)、有夢(mèng)想有目標(biāo)，有組織有體系的公司，堅(jiān)持于帶領(lǐng)員工在未來(lái)的道路上大放光明，攜手共畫(huà)藍(lán)圖，在福建省泉州市等地區(qū)的通信產(chǎn)品行業(yè)中積累了大批忠誠(chéng)的客戶(hù)粉絲源，也收獲了良好的用戶(hù)口碑，為公司的發(fā)展奠定的良好的行業(yè)基礎(chǔ)，也希望未來(lái)公司能成為*****，努力為行業(yè)領(lǐng)域的發(fā)展奉獻(xiàn)出自己的一份力量，我們相信精益求精的工作態(tài)度和不斷的完善創(chuàng)新理念以及自強(qiáng)不息，斗志昂揚(yáng)的的企業(yè)精神將**泉州市天陸通信和您一起攜手步入輝煌，共創(chuàng)佳績(jī)，一直以來(lái)，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠(chéng)實(shí)守信的方針，員工精誠(chéng)努力，協(xié)同奮取，以品質(zhì)、服務(wù)來(lái)贏得市場(chǎng)，我們一直在路上！</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3029546.html</p></div></div></div></div></div><div id="espro3f" class="page-right twoColRt"><div id="icjbikh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cwy2el7" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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