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

[SOLVED] RFID tag Antenna measurement (860-960Mhz)

Status
Not open for further replies.
T

Techi

Member level 3
Joined
Oct 27, 2010
Messages
63
Helped
6
Reputation
12
Reaction score
6
Trophy points
1,288
Activity points
1,643
hi, i designed UHF rfid tag antenna (860Mhz-960Mhz) which is a meandered half wave dipole antenna on FR4. As it needs balanced signal at its input to measure the input impedance etc. of this antenna. VNA provides unbalanced signal. I am confuse how do I make a balun or any measuring structure with which I can provide balanced signal to it.
Anybody solved this problem please help me. thanks
 

You should avoid current floating on the braid of your coaxial cable .
This can be done by placing ferrite beads on your coaxial cable , just make sure that the ones you are using have enough resistance on the desired frequency .

Our you can make a quarter wave sleeve balun .
A sleeve balun make a short circuit a quarter wave away from the load .
 

hi lambdaanttech, thanks for your comments. Have u designed quarter wave sleeve balun by yourself? Because I need help.
 
Last edited:

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top