TI工程师,你好:
我最近在看AWR1642的雷達設計,天線部分是把AWR1642BOOST上面的天線給copy過來的。
但是最近在算天線50ohm阻抗控制的時候,發現用TI官網上面資料所給出的值計算出來的阻抗并不是
標準的50ohm,而是51ohm,我想請教一下這種設計是否合理?阻抗計算的表如下:
叠构图计阻抗计算如下,望不吝賜教,非常感謝!
user5853495:
回复 Wesley He:
Hi Wesley
Thanks for your reply. You mean that the Dk value I used is not correct, can i ask PCB vender to help provide Dk value or calculate it by myself?By the way, can you kindly tell me what are the parameters "Base thickness" and "Processed thickness"show in stackup mean? which one should be used for impedance calculate?
Best Regards!