Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[ask] Antenna parameters

Status
Not open for further replies.
M

micro_tech

Member level 1
Joined
Jul 22, 2007
Messages
34
Helped
5
Reputation
10
Reaction score
0
Trophy points
1,286
Activity points
1,558
Hi,

I'm sorry if my question "tickle" you...
it's because I really don't understand it well, I'd read some reference but still don't find good explanation on it (looks like the problem is on me）

OK, here are my questions:
1. Some mention 'bout the parameter of antenna as S11, S22, S12, S21. What those variables mean actually? So far I only understand that S11 is related to the matching or VSWR (please correct me if I'm wrong).
2. What TEM is actually mean? (not the abbreviation offcourse). And sometimes I found 'bout TM10, TM11, etc what that's mean?

Please spare your time helping me to understand those...
I'm looking forward for your answer...
thanks before...
 

hello micro_tech:

Have you download David M.Pozar'
Microwave Engineering,a useful technology book?
I think you can find the answer youself.

best reguard!
 

Hi antboy,

Thanks for your replay...
Yes I've heard about that book, but unfortunately I can't find it...
Do you have the ebook version of that book?


antboy said:
hello micro_tech:

Have you download David M.Pozar'
Microwave Engineering,a useful technology book?
I think you can find the answer youself.

best reguard!
Click to expand...
 

All you need to do is a search is this forum,
you will find it. It has been uploaded many times.
 

Hi,

S11- Gives Return loss at port 1(Transmitting and receiving at port 1).
S22- Gives Return loss at port 2(Transmitting and receiving at port 2).
S12- Transmitting at Port 2 and Receiving at Port 1.
S21- Transmitting at Port 1 and Receiving at Port 2.

S12=S21 in case of reciprocal network.
 

    M

    micro_tech

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top