GPS天線 天線陶瓷板材

各位大牛：  
  請問國內(nèi)做GPS天線的廠家都有哪些？國內(nèi)天線陶瓷板材哪有資料？

網(wǎng)友回復(fù):

陶瓷板材 已經(jīng)說明了材料了， 
做GPS的成千上萬，可是GPS現(xiàn)在都淘汰了！誰還在做GPS啊 
現(xiàn)在都是做GNSS了 
需要可以和我聯(lián)系！

網(wǎng)友回復(fù):

GPS屬于GNSS的一種

網(wǎng)友回復(fù):

能否提供詳細(xì)的陶瓷板資料，比如都有哪些介電常數(shù)，板厚等，包括國內(nèi)和國外的？謝謝了！那做北斗天線的廠家都有哪些��？

網(wǎng)友回復(fù):

 
居然有人能這樣回答！我無語了

網(wǎng)友回復(fù):

 
北京北科華星電子科技有限公司 我只和這家合作過，其他家的不清楚，你百度嘛，多得很，不過吹的太多，有責(zé)任心做得好的太少。吹牛的太多了

網(wǎng)友回復(fù):

 
 
 
 
 
 
又見炮王打嘴炮，沒文化真可怕…… 
 
A satellite navigation or SAT NAV system is a system of satellites that provide autonomous geo-spatial positioning with global coverage. It allows small electronic receivers to determine their location (longitude, latitude, and altitude) to within a few metres using time signals transmitted along a line-of-sight by radio from satellites. Receivers calculate the precise time as well as position, which can be used as a reference for scientific experiments. A satellite navigation system with global coverage may be termed a global navigation satellite system or GNSS. 
 
As of October 2011, only the United States NAVSTAR Global Positioning System (GPS) and the Russian GLONASS are fully globally operational GNSSs. China is in the process of expanding its regional Beidou navigation system into the global Compass navigation system by 2020.[1] The European Union's Galileo positioning system is a GNSS in initial deployment phase, scheduled to be fully operational by 2020 at the earliest.[2] Several countries including France, Japan and India are in the process of developing regional navigation systems.[3] 
 
 

網(wǎng)友回復(fù):

是CNSS  打錯了

網(wǎng)友回復(fù):

都是高人，學(xué)習(xí)之~~~~~

網(wǎng)友回復(fù):

1、陶瓷天線的廠家,可以根據(jù)你的要求，GPS和北斗都能做。 
  我知道的陶瓷天線廠家有  臺灣：佳邦，泰蒙                                             
                          大陸:：正源, 燦勤 佳康 華廣 達(dá)寶 
2、具體的陶瓷材料，問陶瓷天線廠的人比較清楚。一般都是混合粉料的，介電常數(shù)我見過8~80左右的。 
 

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