RFID HF antenna - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

Below are the old forum threads, including responses to the original posts.

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews

-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

Jeanalmira

Post subject: RFID HF antenna

Posted: Thu Sep 11, 2008 11:44 pm

General

Joined: Tue Mar 15, 2005 11:43 pm
Posts: 65
Location: Singapore

Hi guys,

Is there anyway that I could find tutorial/ examples of RFID antenna HF EM simulations? I'm not sure about the geometry or how to define the port.

I understand that the SWR preferrable <1.5. Is this requirement after we include the IC parameters (which is capacitive) or should I get this SWR first by the coil antenna without the IC?

Would somebody outthere enlighten?

Thanks a lot.
-Jean

Posted 11/12/2012

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom

Johanson Dielectrics EMI Filters - RF Cafe

Werbel Microwave power dividers, couplers - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs