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src="https://forum.eepw.com.cn/jscontent/wenzilian" type="text/javascript"></script>  <div class="tfcrksi" id="container"> <section> <article> <h1>Power Class 2一兩年內(nèi)或?qū)⑸逃?/h1> <div id="fswlebn" class="authorTimeSource"> <span>作者：王瑩</span> <span>時(shí)間：2017-01-22</span> <span>來源：電子產(chǎn)品世界</span> <link rel="stylesheet" type="text/css"/> <span style="float:right; width:130px;margin-right:0px; text-align:right;"> <div id="rptmqco" class="nav0"> <ul> <li><a href="javascript:void(0);"><img src="http://www.ex-cimer.com/event/action/images/icon_add_4.png" width="20" border="0" align="absmiddle" />加入技術(shù)交流群</a> <ul> <li style="text-align:center;"><img src="http://www.ex-cimer.com/event/company/images/code_1.jpg" width="130"><br />掃碼加入<br />和技術(shù)大咖面對(duì)面交流<br />海量資料庫查詢</li> </ul> </li> </ul> </div> </span> <span style="float:right; width:30px;margin-right:0px; text-align:right;"><a rel="nofollow">收藏</a></span> </div> <div id="pquycde" class="hAd4_Afinal20a_back">  <iframe id='a890e388' name='a890e388' src='https://ad.eepw.com.cn/www/delivery/afr.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE' frameborder='0' scrolling='no' width='660' height='60'><a target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE&n=a635e61e' border='0' alt='' /></a></iframe> </div> <div style="margin-top:28px;"></div> <div id="xnvzzwi" class="content" id="contentDiv" style="position:relative;"> <div id="fzhhwxj" class="ad_300x180_Afinal13_back">  <iframe id='a225770a' name='a225770a' src='https://ad.eepw.com.cn/www/delivery/afr.php?zoneid=87&cb=INSERT_RANDOM_NUMBER_HERE' frameborder='0' scrolling='no' width='300' height='200'><a target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=87&cb=INSERT_RANDOM_NUMBER_HERE&n=a576c0a2' border='0' alt='' /></a></iframe> </div> <span id="contentlabels" style="font-size:14px;"><p>　　“預(yù)計(jì)今年Sprint會(huì)對(duì)Power Class 2商用，中國移動(dòng)預(yù)計(jì)2018年商用?！?a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/Qorvo"><em>Qorvo</em></a>中國區(qū)移動(dòng)產(chǎn)品銷售總監(jiān)江雄稱。他是在近日在深圳舉辦的“易維訊第六屆年度中國ICT媒體論壇”上說的。</p>本文引用地址：<a href="http://www.ex-cimer.com/article/201701/343192.htm">http://www.ex-cimer.com/article/201701/343192.htm</a><p>　　所謂的Power Class 2(PC2)，是隨著<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/TD-LTE"><em>TD-LTE</em></a>產(chǎn)業(yè)鏈不斷壯大，移動(dòng)通信國際標(biāo)準(zhǔn)組織3GPP啟動(dòng)的新標(biāo)準(zhǔn)。相比B41 <a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/TD-LTE"><em>TD-LTE</em></a>，Band 41 UE Power Class 2標(biāo)準(zhǔn)的綜合效率提升了30%。而<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/Qorvo"><em>Qorvo</em></a>的B41 Power Class 2解決方案有三大優(yōu)勢：1.擅長開發(fā)高集成度的RF解決方案。2.<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/Qorvo"><em>Qorvo</em></a>的BAW(體聲波濾波器)技術(shù)有較高的可靠性。3.對(duì)生產(chǎn)工藝有了改進(jìn)，例如采用了HBT 5(注：2016年Qorvo開始推廣)技術(shù)。</p><p>　　Qorvo的RF Fusion B41系列有三款產(chǎn)品，支持三載波/四載波方案，即越復(fù)雜越適合。因?yàn)镻A較容易做，但Fusion(融合)較難，例如此時(shí)天線也變得更復(fù)雜，Qorvo主要采用集成LNA(低噪聲放大器)來提高天線密度。</p><p style="text-align:center"><img style="width:400px;height:440px" title="1.jpg" border="0" hspace="0" vspace="0" src="http://editerupload.eepw.com.cn/201701/85371485060123.jpg" width="400" height="440" /></p><p>　　那么，Band 41 UE PC2的功率提高后，電流是否會(huì)相應(yīng)增加線性度如何保證?答案是Qorvo的HBT 5工藝使電流沒有增加多少，并保證了線性度。</p><p>　　另外，新產(chǎn)品的成本和前代相比稍高，但也差別不大。具體地分析，通常認(rèn)為，Qorvo所采用的BAW比SAW(表面聲波濾波器)的價(jià)格差別大，但目前差距縮小，只有百分之十幾的差距。</p><p>　　據(jù)悉，Qorvo是全球重要的無線/RF芯片供應(yīng)商。“迄今世界上有幾十億產(chǎn)品中有Qorvo的無線/RF產(chǎn)品?！苯鄯Q。Qorvo既是老公司也是新公司，因?yàn)榻鼛啄晖ㄟ^并購(例如2014年與TriQuint合并)注入了新鮮血液，同時(shí)經(jīng)過幾十年的積累，公司已把供應(yīng)鏈建立得很完整，以便更好地服務(wù)于全球無線市場。</p><p>　　另悉，近幾年，全球年均手機(jī)市場需求約18億部，其中智能手機(jī)比例逐漸提高。中國手機(jī)需求約5億部。由于智能手機(jī)的頻段越來越多，意味著PA越來越多。例如過去2G手機(jī)里只有兩個(gè)PA，現(xiàn)在更多?！斑@促使Qorvo股票這幾年增長較快?！?/p></span>  <div class="zlimfro" id="coverDiv" 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