Jan 21, 2009 #1 M mortarman Newbie level 5 Joined Oct 16, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,341 Hello, I have simulated an coaxial-probe-fed antenna using specifications of 2.92mm air-insulator coaxial jack. I am trying to simulate the same antenna using specifications of a SMA teflon-insulator coaxial jack. I was wondering if i have done it correctly - especially when defining the insulator part? Because the results that came out was gibberish. Thanks!
Hello, I have simulated an coaxial-probe-fed antenna using specifications of 2.92mm air-insulator coaxial jack. I am trying to simulate the same antenna using specifications of a SMA teflon-insulator coaxial jack. I was wondering if i have done it correctly - especially when defining the insulator part? Because the results that came out was gibberish. Thanks!
Jan 21, 2009 #2 Z zirtapoz Full Member level 3 Joined Dec 25, 2007 Messages 159 Helped 17 Reputation 34 Reaction score 6 Trophy points 1,298 Location finite space Activity points 2,072 use and compare (it gives 50 Ω But teflon has no bulk conductivity!!!) As a probe u can not use it u have to use it as dielectric around probe) **broken link removed**
use and compare (it gives 50 Ω But teflon has no bulk conductivity!!!) As a probe u can not use it u have to use it as dielectric around probe) **broken link removed**
Jan 21, 2009 #3 M mortarman Newbie level 5 Joined Oct 16, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,341 Originally the probe is using pec as its material. I thought i was changing the dielectric material around the probe all along. So all i have to is change the vacuum dielectric to teflon... Thanks zirtapoz!
Originally the probe is using pec as its material. I thought i was changing the dielectric material around the probe all along. So all i have to is change the vacuum dielectric to teflon... Thanks zirtapoz!
Jan 22, 2009 #4 Z zirtapoz Full Member level 3 Joined Dec 25, 2007 Messages 159 Helped 17 Reputation 34 Reaction score 6 Trophy points 1,298 Location finite space Activity points 2,072 and also check for impedance with teflon (your dimensions were for air or vacum Er=1) You wellcome.
Jan 23, 2009 #5 M mortarman Newbie level 5 Joined Oct 16, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,341 yup, i used the weblink you provided me. my new configuration was about 50ohms. Thanks again!