monopole antenna design in hfss, freq range 30-512 MHZ

[danny_1]

i designed a loaded monopole and a helical (normal mode) monopole but both using ADK in hfss 12.1, but still couldn't achieve the bandwidth requirement. what should i do to perfectly design a monopole from 30-512 MHz?

 

[ferdows]

hi
for solve this u should add inductance and resistance to antenna

 

[danny_1]

how to add inductance and resistance to a monopole antenna? can you upload some examples?

hi
for solve this u should add inductance and resistance to antenna

 

[ferdows]

draw a plane and define it as RLC boundary condition