Antenna - Theory .com: The Antenna Site

Antenna Basics Antenna Types Smith Charts Antenna Measurements

antenna-theory.com :: View topic - Equivalent Cirtcuit
antenna-theory.com Forum Index antenna-theory.com
Antenna Theory
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Equivalent Cirtcuit

 
Post new topic   Reply to topic    antenna-theory.com Forum Index -> Questions Related to Antenna Theory
View previous topic :: View next topic  
Author Message
havejr01
Antenna-Theory.com Newbie


Joined: 08 Apr 2014
Posts: 1

PostPosted: Tue Apr 08, 2014 11:39 am    Post subject: Equivalent Cirtcuit Reply with quote

How would you go about determining the equivalent circuit of a planar antenna so that you are able to simulate it in SONNET or ANSOFT?
Back to top
View user's profile Send private message
Schubert
Antenna Wizard


Joined: 08 Apr 2009
Posts: 161

PostPosted: Fri Apr 11, 2014 9:38 pm    Post subject: Reply with quote

There are a few ways depending on what type of antenna it is.

If you have a simple half-wavelength dipole antenna, you can assume a resistor of 70 Ohms and some inductance (impedance is about 73 + j43 ohms) depending on the frequency.

If you have a complicated antenna, you can measure it on a Vector Network Analyzer (VNA) to get the impedance and then make a simple circuit.

Generally you will have some resistance (for radiation resistance + loss resistance) and either some capacitance or inductance in series.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    antenna-theory.com Forum Index -> Questions Related to Antenna Theory All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group