Jul 29, 2008 #1 P paupau101 Newbie level 5 Joined Jul 20, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,344 helical antenna design I'm proposing to design a 100MHz helical antenna and I don't know to find the center frequency. Is there any good reference or manual for this antenna? Tnx.
helical antenna design I'm proposing to design a 100MHz helical antenna and I don't know to find the center frequency. Is there any good reference or manual for this antenna? Tnx.
Jul 29, 2008 #2 K Kohi_boy Full Member level 4 Joined Apr 20, 2008 Messages 206 Helped 39 Reputation 78 Reaction score 23 Trophy points 1,298 Activity points 2,093 helical antenna 100mhz Antenna Engineering Handbook by Volakis. Chapter 12.
Jul 30, 2008 #3 P paupau101 Newbie level 5 Joined Jul 20, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,344 Given a helical coil with parameters below: a-radius of the coil b-inner radius of a wire s-spacing b/w turns n-turn h- height of the coil How can I determine the effective inductance and effective capacitance of the coil? Is there any formula or reference? TNX.
Given a helical coil with parameters below: a-radius of the coil b-inner radius of a wire s-spacing b/w turns n-turn h- height of the coil How can I determine the effective inductance and effective capacitance of the coil? Is there any formula or reference? TNX.
Jul 30, 2008 #4 balaguru thavamani Full Member level 5 Joined Nov 8, 2006 Messages 243 Helped 55 Reputation 110 Reaction score 22 Trophy points 1,298 Activity points 2,478 Refer regards, balaguru.
Jul 30, 2008 #5 P paupau101 Newbie level 5 Joined Jul 20, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,344 The link above is helpful but I still cant find the effective inductance and capacitance of a 100MHz helical coil. I need those two parameters for finding the resonant freq of the antenna. Can anybody help? Tnx.
The link above is helpful but I still cant find the effective inductance and capacitance of a 100MHz helical coil. I need those two parameters for finding the resonant freq of the antenna. Can anybody help? Tnx.
Jul 31, 2008 #6 A Azulykit Advanced Member level 4 Joined Feb 18, 2007 Messages 1,140 Helped 224 Reputation 446 Reaction score 116 Trophy points 1,343 Location All over the Map. Activity points 8,630 try "Antennas" J. Kraus there is a wealth if information on spirals in his book. More can be found in Corzine and Mosko.
try "Antennas" J. Kraus there is a wealth if information on spirals in his book. More can be found in Corzine and Mosko.
Nov 26, 2009 #7 H helixman Newbie level 2 Joined Nov 25, 2009 Messages 2 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location india Activity points 1,288 Could someone send me a matlab code to plot the pattern radiation of helicoidal antennas?
Nov 29, 2009 #8 T thihakyaw Newbie level 4 Joined Aug 18, 2008 Messages 7 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,314 Helical Antenna using HFSS
Jan 22, 2010 #9 R rohandantu Newbie level 3 Joined Jan 8, 2010 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location chennai Activity points 1,293 thihakyaw said: Helical Antenna using HFSS Click to expand... please repost the file it is not opening with hfss11
thihakyaw said: Helical Antenna using HFSS Click to expand... please repost the file it is not opening with hfss11