I would really appreciate your straightforward reply to my query as I have researched the forum already and there is a hit and miss discussion around this topic. If you would like to check out the antenna I am trying to simulate, it's atĪnd it's the first one: Printed Rectangular-Slot Disc Monopole Antenna So I am not sure where 50 ohms come from.Īlso, I learned that transmission feedline length should be lambda/4, but how does that relate exactly to a feedline with characteristic impedance of 50 ohms. I have entered these paramaters in this characteristic impedance calculator atīut it's coming up with 70 ohms instead. The feedline width and length is 2mmx16mm and the substrate thickness is 2mm with relative permittivity of 4.4. The antenna is from the literature and it specifies a 50 ohm feedline, and I am not sure how that is simulated in HFSS. I am relatively new to HFSS and need to simulate a 50 ohm feedline for a monopole slot antenna.
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