Maryam Darabi

9 Questions 30 Answers 0 Followers

Questions related from Maryam Darabi

How to Calculate the exact position and dimensions of a slot on microstrip patch antenna?

Dears As you can see in attached photo, for a U-slot patch antenna the dimensions are depicted. Is there any mathematical formulas to calculate the exact position and dimensions of the slot? I...

04 March 2022 720 3 View

How to know that surface wave excited for microstrip antenna based on simulation results?

hi when I simulate my antenna (for example in CST), can I talk about surface wave excitation based on antenna's radiation pattern? how to know that surface wave excited based on simulation...

14 April 2021 5,523 4 View

Why the gain of the antenna drops as frequency range increases in CST?

when I simulate my antenna for example in the frequency range of (1-4 GHz) in CST the maximum gain at 2.45GHz is 1.5dBi, but when I increase the frequency range (1-10GHz) the maximum gain at...

01 April 2021 9,476 8 View

How should we use SMA connector for exciting our antenna in HFSS?

Hello I designed an antenna in HFSS and I want to use SMA connector to excite it (as you see in the picture). I used wave port. and the solution type is Modal. and defined the radiation box...

22 January 2021 1,666 6 View

What are the specifications of placing an antenna on an EBG structure in CST or HFSS?

Hello Happy New Year , I wish the best for all of us and our kind planet Earth in 2021 OK, I designed an microstrip patch antenna on CST and now i want to use EBG structure to enhance its...

01 January 2021 5,473 9 View

How can we determine equivalent circuit model of an antenna using CST and ADS?

hello everyone i hope you all be safe and sound during quarantine! OK i designed an antenna (MPA) in CST. now i want to determine its equivalent circuit model by ADS. is it possible? and how...

22 November 2020 828 11 View

How can we use Cavity Model to deduce the characteristics of Microstrip patch antenna?

hello everyone i've been reading a book about Microstrip patch antenna, and in one chapter it explains the characteristics of microstrip patch antennas using cavity model. and it said "for the...

05 October 2020 3,143 2 View

Is there any specific boundary or excitation for an antenna with EBG structure in CST or HFSS?

hello everyone i designed an antenna and also a EBG structure to improve its behavior in both CST and HFSS but i'm not sure what kind of boundary i should use to get reasonable results. i try many...

04 September 2020 3,162 8 View

Is it good to have negative gain for our antenna??????

hi everyone. I've been reading a research letter about wearable antennas for biomedical application. and then in the abstract it said, the exact words are,"The structure achieves very good...

22 July 2020 9,307 23 View