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arka

Replies: 2
Views: 6980

Forum: Questions Related to Antenna Theory   Posted: Thu Mar 17, 2016 2:33 pm   Subject: Designing a 2.5 patch antenna
Please follow the chapter on microstrip antennas from Antenna Theory book by C.A.Balanis.
arka

Replies: 1
Views: 7418

Forum: Questions Related to Antenna Theory   Posted: Wed Aug 26, 2015 10:46 am   Subject: Was having problems with my Yagi
Hahaha..The cat wanting to learn Electromagnetics I guess
arka

Replies: 1
Views: 7353

Forum: Questions Related to Antenna Theory   Posted: Mon Mar 09, 2015 7:06 am   Subject: Design and analysis of UWB antenna
Try to get inside HFSS and replicate the examples that are illustrated in the user's manual.. there are many practical electromagnetic structures demonstrated in the manual. You can replicate those an ...
Topic: maxwell's equations
arka

Replies: 6
Views: 17208

Forum: Questions Related to Antenna Theory   Posted: Fri Jul 05, 2013 7:13 am   Subject: maxwell's equations
after converting to analogous EM quantities, use del X E = -dB/dt as generalized KVL and del.J = -d(rho)/dt , i.e. the continuity equation as generalized KCL..
arka

Replies: 13
Views: 29452

Forum: Questions Related to Antenna Theory   Posted: Thu Mar 21, 2013 1:02 pm   Subject: Re: Antenna Volume and Bandwidth
Hi bigSteve,

Very good explanation. Thanks.
Also, in the case of microstrip antenna. Can we say thicker have more fringing field modes? I heard some explanation from Q out of the volume of an ant ...
arka

Replies: 3
Views: 10840

Forum: Questions Related to Antenna Theory   Posted: Thu Mar 21, 2013 12:37 pm   Subject: Scattering parameters (return loss)
Thank you Schubert for answering my post..

Im doing a project regarding on microstrip antenna for my FYP..i read in a book n it says theoretically below -10dB is better performance..so i believe th ...
arka

Replies: 4
Views: 14843

Forum: Questions Related to Antenna Theory   Posted: Thu Mar 21, 2013 12:13 pm   Subject: @ admin
I agree to most of the things you said in the reply to the original post, but i beg to differ on "I generally feel numerical solutions don't increase understanding, and are typically a "stup ...
arka

Replies: 3
Views: 10201

Forum: Questions Related to Antenna Theory   Posted: Wed Mar 20, 2013 2:46 pm   Subject: Question regarding plots making
Ya i have seen the second plot. As far as I am aware, the method which I have stated is the one to convert it to dB..No idea why it went wrong, may be somebody else can put some light on it.
Thanks
arka

Replies: 3
Views: 10201

Forum: Questions Related to Antenna Theory   Posted: Wed Mar 20, 2013 2:34 pm   Subject: Question regarding plots making
I am not aware of the EM solver that you are using, but it seems like the three columns are as follows : Frequency, Real part of S11, Imaginary part of S11 (correction- not conductivity as you mention ...
arka

Replies: 2
Views: 9379

Forum: Questions Related to Antenna Theory   Posted: Tue Mar 19, 2013 12:49 pm   Subject: Reply
Hi..A normal transmission line doesn't radiate TEM waves. It guides TEM waves. Two conditions that are vital for radiation to occur are:
1. There must be a time-changing excitation, which we already ...

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