difference in theoritical and simulation results
时间：04-04
整理：3721RD
点击：
i have an antenna whose Zin i have calculated and then use a lumped network(L- shaped network using inductor and capacitor) to match that to a 50 ohm line at 2.4 GHz.now when i am simulating this on hfss i am getting some other resonant frequency so on slightly changing the lumped elements value it is getting tuned to 2.2 GHz but not on 2.4, also every time i change elemnts value to bring the
resonant frequency at 2.4 the s11 becomes small(above -6 db). can someone tell why the difference is their and what can be done for the tuning.
by resonant frequency i mean where my s11 is getting peak(-10 db or lower).
i am using a 50 ohm transmission line which is connected to the matching network and that is connected to the antenna.
also since transmission line is supposed to be matched with the network(50 ohm ) will their be any effect if i change the length of tr line because it will see 50 ohm only.
but doing this also changes the result
resonant frequency at 2.4 the s11 becomes small(above -6 db). can someone tell why the difference is their and what can be done for the tuning.
by resonant frequency i mean where my s11 is getting peak(-10 db or lower).
i am using a 50 ohm transmission line which is connected to the matching network and that is connected to the antenna.
also since transmission line is supposed to be matched with the network(50 ohm ) will their be any effect if i change the length of tr line because it will see 50 ohm only.
but doing this also changes the result