403.5MHz antenna design and simulation

[ashinitj]

hi everyone!!!
can u pls tell me which substrate will be suitable for designing 403.5MHz low profile antenna? how can i proceed??
As it is not possible to fabricate it on Silicon substrate due to size limitations.



Thanks in advance!!

 

[plantze]

how about using fr4 (Woven glass and epoxy) as substrate. it is commonly used in PCBs

 

[ashinitj]

thnx!! ....
but i need some more help fron u dear... can u pls tell me if i go to design a monopole antenna then which feed will be suitable for this ?? is monopole a gud option?? or some other type u prefer to suggest me??

FR4 (Er) = 4.4
any other suitable substrate with dielectric constant higher than this?? actually on FR4 antenna dimensions are coming much larger...

 

[plantze]

if you want long distance communication for 403.5Mhz then use helical antenna for simulation, but for short distance fr4 will work but you have to tune it with rlc circuit. i hope this helps...