東莞車(chē)載天線(xiàn) 歡迎來(lái)電泉州市天陸通信科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" GPS系統(tǒng)在我們的生活中應(yīng)用越來(lái)越廣，這離不開(kāi)GPS天線(xiàn)的重要作用，下面GPS天線(xiàn)廠(chǎng)家來(lái)告訴您GPS天線(xiàn)的具體作用吧。1.是用來(lái)?yè)渥叫l(wèi)星，接收衛(wèi)星定位信息的，也就是輻射和接收電磁波。任何高頻電"><meta name="keywords" content="東莞車(chē)載天線(xiàn),天線(xiàn)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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歡迎來(lái)電泉州市天陸通信科技供應(yīng)</p><div id="gec04cq" class="leftbox clearfix"><h1>東莞車(chē)載天線(xiàn) 歡迎來(lái)電泉州市天陸通信科技供應(yīng)</h1><div id="2a2eayo" class="proBig"><div id="2yuiw24" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_7147621.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cywuq2u" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_7147621.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oc4gocq" 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>東莞車(chē)載天線(xiàn),天線(xiàn)</p><p><span>***更新：</span>2020-07-01 09:15:31</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="g2m2uqw" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m4kigec" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mkiesqe" class="box"><p><p> GPS系統(tǒng)在我們的生活中應(yīng)用越來(lái)越廣，這離不開(kāi)GPS天線(xiàn)的重要作用，下面GPS天線(xiàn)廠(chǎng)家來(lái)告訴您GPS天線(xiàn)的具體作用吧。1.是用來(lái)?yè)渥叫l(wèi)星，接收衛(wèi)星定位信息的，也就是輻射和接收電磁波。任何高頻電路，只要不是完全屏蔽起來(lái)的，都可以向周?chē)臻g或多或少地輻射電磁波，或者從周?chē)臻g或多或少地接收到電磁波。根據(jù)GPS天線(xiàn)的不同，東莞車(chē)載天線(xiàn)，可以分為平板天線(xiàn)和螺旋天線(xiàn)，螺旋天線(xiàn)搜星能力更強(qiáng)一些。2.將衛(wèi)星傳來(lái)的無(wú)線(xiàn)電信號(hào)的電磁波能量變換成接收機(jī)電子器件可攝取應(yīng)用的電流，也就是能量轉(zhuǎn)換。通常對(duì)于**設(shè)備或車(chē)載設(shè)備而言，由于設(shè)備與GPS接收模塊之前往往有一定距離，因此在現(xiàn)實(shí)環(huán)境中可能會(huì)使用超過(guò)1米的潰線(xiàn)。但又因?yàn)轲伨€(xiàn)對(duì)信號(hào)有不少的損耗，所以在這種情況下只能選擇有源GPS天線(xiàn)。GPS天線(xiàn)的大小和形狀十分重要，因?yàn)檫@些特征決定了天線(xiàn)能獲取微弱的GPS信號(hào)的能力。GPS衛(wèi)星信號(hào)分為L(zhǎng)1和L2，頻率分別為，其中L1為開(kāi)放的民用信號(hào)，信號(hào)為圓形極化。信號(hào)強(qiáng)度為-166DBM左右，屬于比較弱的信號(hào)。根據(jù)需要，東莞車(chē)載天線(xiàn)，天線(xiàn)可設(shè)計(jì)成可以工作在單一的L1頻率上，也可以工作在L1和L2兩個(gè)頻率上。天線(xiàn)處于車(chē)頂正中位置時(shí)發(fā)射效果比較好，東莞車(chē)載天線(xiàn)，但是這樣的話(huà)天線(xiàn)很高，過(guò)隧道或林蔭路的時(shí)候容易被掛到天線(xiàn)。東莞車(chē)載天線(xiàn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞車(chē)載天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_7147621.jpg"></div><p style="text-indent:25px">天線(xiàn)是移動(dòng)通信系統(tǒng)中重要的組成部分，其質(zhì)量好壞對(duì)通信系統(tǒng)有直接的影響，**終影響手機(jī)的通信質(zhì)量和網(wǎng)絡(luò)的傳輸速度，基站在移動(dòng)通信中的位置比較固定，用戶(hù)數(shù)量較大，所以正大信維通信天線(xiàn)認(rèn)為，基站在選擇天線(xiàn)時(shí)應(yīng)該具備下述要求。 1、通信天線(xiàn)要有很高的增益。 2、天線(xiàn)的輻射方向應(yīng)覆蓋整個(gè)服務(wù)區(qū)域。 3、天線(xiàn)可在多個(gè)頻段工作，具有高帶寬。 4、天線(xiàn)與收發(fā)器之間要有良好的阻抗匹配。 5、通信天線(xiàn)的尺寸盡可能小，結(jié)構(gòu)盡可能緊湊。 6、天線(xiàn)多為線(xiàn)性偏振光，基站天線(xiàn)多為全向高增益天線(xiàn)。浙江4G天線(xiàn)天線(xiàn)可以理解為信號(hào)發(fā)送器和，收發(fā)器天線(xiàn)之間的無(wú)線(xiàn)電信號(hào)強(qiáng)度滿(mǎn)足信道傳輸方程式和多徑衰落特性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞車(chē)載天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422052852677_qztl_2979546.jpg"></div><p> 車(chē)載天線(xiàn)是指原設(shè)計(jì)安裝在車(chē)輛上通訊天線(xiàn)，**常見(jiàn)使用**普遍的是吸盤(pán)天線(xiàn)。車(chē)載天線(xiàn)結(jié)構(gòu)上也有縮短型、四分之一波長(zhǎng)、中部加感型、八分之五波長(zhǎng)、雙二分之一波長(zhǎng)等方式的天線(xiàn)。基地臺(tái)天線(xiàn)在整個(gè)通訊體系中具有十分要害的效果，尤其是作為通訊紐帶的通訊臺(tái)站。常用的基地臺(tái)天線(xiàn)有玻璃鋼高增益天線(xiàn)、四環(huán)陣天線(xiàn)（八環(huán)陣天線(xiàn)）、定向天線(xiàn)。據(jù)上所述。影響天線(xiàn)效果的有。天然物體，如山、樹(shù)、房子等。還有便是天氣，由于云層會(huì)對(duì)天線(xiàn)有反射效果。其次是天線(xiàn)的彼此干擾。**終是其它的電磁干擾，如手機(jī)信號(hào)塔，電視信號(hào)塔，廣播信號(hào)塔。 </p> <p> <br /> </p><p style="text-indent:25px">玻璃鋼天線(xiàn)有兩大好處抗腐蝕，三高　　高精度、高效率、高增益　　將SMC用于制造天線(xiàn)**重要的作業(yè)就是要從產(chǎn)品設(shè)計(jì)與工藝制作上充分發(fā)揮其特色及達(dá)到天線(xiàn)型高精度的要求。在模具尺度設(shè)計(jì)時(shí)已經(jīng)考慮了資料的收縮率和SMC成型收縮率穩(wěn)定的條件下，SMC天線(xiàn)反射面在成型后違背原設(shè)計(jì)拋物面的形狀較小，即SMC模壓天線(xiàn)的精度完全由模具精度所確保。SMC天線(xiàn)模壓全體反射面均方根值為0.25mm，分瓣天線(xiàn)單片反射面均方根值小于0.3mm，拼裝后反射面均方根值小于0.6mm。　鋁板、鋼板等傳統(tǒng)天線(xiàn)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(xiàn)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)酸鈣填料所覆蓋、具有較好的耐酸、耐水、耐腐蝕性，用此資料制成的天線(xiàn)反射處理了傳統(tǒng)金屬資料天線(xiàn)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(xiàn)的這種而腐蝕的優(yōu)點(diǎn)尤顯杰出。美國(guó)波德林公司做過(guò)條件更苛刻的防腐實(shí)驗(yàn)。在50℃的環(huán)境高溫下，將SMC模壓天線(xiàn)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*有少許改變，或沒(méi)有改變。室內(nèi)壁掛天線(xiàn)同樣必須具有結(jié)構(gòu)輕巧、外型美觀、安裝方便等優(yōu)點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞車(chē)載天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422048466677_qztl_6600511.jpg"></div><p> 4G天線(xiàn)的分類(lèi)辦法許多，按使用范圍分類(lèi)，有通訊4G天線(xiàn)、播送和電視4G天線(xiàn)、雷達(dá)4G天線(xiàn)、導(dǎo)航4G天線(xiàn)、側(cè)向4G天線(xiàn)等；依照作業(yè)波長(zhǎng)，4G天線(xiàn)可分為長(zhǎng)波4G天線(xiàn)、超長(zhǎng)波4G天線(xiàn)、中波4G天線(xiàn)、短波和超短波4G天線(xiàn)、微波4G天線(xiàn);依照4G天線(xiàn)上電流散布的方式,4G天線(xiàn)可分為駐波4G天線(xiàn)和行波4G天線(xiàn);按極化特性,4G天線(xiàn)可分為線(xiàn)極化（垂直極化和水平極化）4G天線(xiàn)、圓極化4G天線(xiàn)和橢圓極化4G天線(xiàn)；依照頻率函數(shù)的功能分類(lèi)，有電小4G天線(xiàn)、諧振4G天線(xiàn)、寬帶4G天線(xiàn)和口勁4G天線(xiàn)等。4G天線(xiàn)的剖析辦法與它的構(gòu)造有很大的聯(lián)系，為了理論剖析的便利，一般依照構(gòu)造的不同，將4G天線(xiàn)分為兩類(lèi)：一類(lèi)是由半徑遠(yuǎn)小于波長(zhǎng)的金屬導(dǎo)線(xiàn)構(gòu)成的線(xiàn)4G天線(xiàn)，首要用于長(zhǎng)波、短波和超短波。多見(jiàn)的線(xiàn)4G天線(xiàn)包含對(duì)稱(chēng)振子、圓（或方）環(huán)4G天線(xiàn)、螺線(xiàn)4G天線(xiàn)等。另一類(lèi)是由尺度大于波長(zhǎng)的金屬或介質(zhì)面構(gòu)成的面4G天線(xiàn)，首要用于微波波段，包含喇叭4G天線(xiàn)、拋物面4G天線(xiàn)等。先介紹線(xiàn)4G天線(xiàn)，然后在對(duì)面4G天線(xiàn)進(jìn)行剖析。4G天線(xiàn)的研討首要觸及剖析、規(guī)劃和歸納三個(gè)方面。4G天線(xiàn)的剖析是斷定給定4G天線(xiàn)構(gòu)造的方向和阻抗特性。4G天線(xiàn)的理論剖析，實(shí)際上是研討4G天線(xiàn)所發(fā)生的空間電磁場(chǎng)剖析，以及該場(chǎng)剖析所決議的4G天線(xiàn)特性。天線(xiàn)不可放在室內(nèi)使用，同時(shí)也造成高駐波。還有害人體。東莞車(chē)載天線(xiàn)</p><p style="text-indent:25px">多見(jiàn)的線(xiàn)4G天線(xiàn)包括對(duì)稱(chēng)振子、圓（或方）環(huán)4G天線(xiàn)、螺線(xiàn)4G天線(xiàn)等。東莞車(chē)載天線(xiàn)</p><p> 玻璃鋼天線(xiàn)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(xiàn)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(xiàn)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(xiàn)反射解決了傳統(tǒng)金屬資料天線(xiàn)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(xiàn)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(xiàn)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(xiàn)在沿海區(qū)域少則2—3年，多則4—6年。東莞車(chē)載天線(xiàn)</p><p style="text-indent:25px">泉州市天陸通信科技有限公司成立于2017-04-07，是一家生產(chǎn)型的公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下[ "玻璃鋼天線(xiàn)", "車(chē)載天線(xiàn)", "船舶天線(xiàn)", "對(duì)講機(jī)天線(xiàn)" 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