[互助]GPS天线 天线陶瓷板材

各位大牛： + h`:qB  
  请问国内做GPS天线的厂家都有哪些？国内天线陶瓷板材 .. ?@|1>epgd  
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陶瓷板材 已经说明了材料了， Cc!n
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做GPS的成千上万，可是GPS现在都淘汰了！谁还在做GPS啊 2jx""{  
现在都是做GNSS了 Em4TEv  
需要可以和我联系！

GPS属于GNSS的一种

能否提供详细的陶瓷板资料，比如都有哪些介电常数，板厚等，包括国内和国外的？谢谢了！那做北斗天线的厂家都有哪些啊？

引用第2楼hai1039于2012-06-05 08:49发表的  : ,GZ(>|  
GPS属于GNSS的一种
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居然有人能这样回答！我无语了

引用第3楼rfsintek于2012-06-05 09:07发表的  : ,'={/)c<  
能否提供详细的陶瓷板资料，比如都有哪些介电常数，板厚等，包括国内和国外的？谢谢了！那做北斗天线的厂家都有哪些啊？ MvL%*("4b  

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北京北科华星电子科技有限公司 我只和这家合作过，其他家的不清楚，你百度嘛，多得很，不过吹的太多，有责任心做得好的太少。吹牛的太多了

引用第2楼hai1039于2012-06-05 08:49发表的 : n&FN?"I/]  
GPS属于GNSS的一种 Fg5>CppH  

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引用第4楼hongzhuye于2012-06-05 20:39发表的 : uH65DI<  
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居然有人能这样回答！我无语了 PO<4rT+B  

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又见炮王打嘴炮，没文化真可怕…… q:J,xC_sF(  
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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. (`!?p ^>A  
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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] cXE42MM  

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是CNSS  打错了

都是高人，学习之~~~~~

1、陶瓷天线的厂家,可以根据你的要求，GPS和北斗都能做。 #VgPg5k.<  
  我知道的陶瓷天线厂家有  台湾：佳邦，泰蒙                                             )Jz L  
                          大陆:：正源, 灿勤 佳康 华广 达宝 f[6;)ZA  
2、具体的陶瓷材料，问陶瓷天线厂的人比较清楚。一般都是混合粉料的，介电常数我见过8~80左右的。 5 UpN/\He  
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