Info about PCB low power antennas

• Oct 29, 2003

• #1

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Bukitoo

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Hi !
I need info abaout PCB low power antennas. Like those in car alarm systems.
I would like to know it its some tool for the simulation of these antennas.

Thanks

 

• Oct 29, 2003

• #2

Element7k

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circuit board antenna

Hi,

Ansoft Designer is good in PCB planar antennas. Also CST Mircowave Studio, IE3D or FEKO. What frequecy are you looking at? What exactly is your application?

With more information, maybe this eboard forum can help you design one quite quickly.

Cheers,
Element7k

Bukitoo said:

Hi !
I need info abaout PCB low power antennas. Like those in car alarm systems.
I would like to know it its some tool for the simulation of these antennas.

Thanks

Click to expand...

 

• Nov 3, 2003

• #3

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Lupin

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rfid pcb antenna

I'm looking for some papers about Vivaldi antenna..I work on patch antennas and I'm just curious.
Can anyone help me?

Thanks in advance
Lupin

 

• Jan 15, 2004

• #4

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mingrf

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pcb antenna rfid

we need an antenna freq.=13.56M, to make it
on PCB with Cu line, The L=3.5uH. how to select
the turns of the spiral inductor antenna?
thanks a lot.!

 

• Jan 15, 2004

• #5

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AL0117

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pcb antenna

Hi,

For 13.56 MHz RFID antenna design, look for the following appnotes from Microchip:

AN678 RFID Coil Design
AN710 Antenna Circuit Design for RFID Applications

You have in these articles relations about designing the nr of turns of the antenna coil.

Also there a practical example on the Sonnet website, which can be simulated using Sonnet Lite (it's free )

hxxp://www.sonnetusa.com/support/downloads/publications/RFID.zip

(replace x=t)

My best, Al

 

• Feb 11, 2004

• #6

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Ricky761

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rfid antenne pcb

Just a question how can you determine the power capabilty of a pcb type antenna ( say in vhf or uhf range ) if anyone have a formula thanks

 

• Feb 14, 2004

• #7

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MSH

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eboard.com vivaldi antenna

I have a similar question.
I want to know how I can simulate power handling of a panar structure for examle a coupler?.
RGZ

 

• Apr 14, 2004

• #8

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linkup11

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eboard.com cst

see hxxp://www.rogerscorporation.com/mwu/tip12.htm

 

• Apr 15, 2004

• #9

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zubair

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sainati

A good practicle book about printed antenna is "CAD of Microstrip Antennas for Wireless Applications" by Robert A. Sainati.

 

• Apr 15, 2004

• #10

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IICCEE

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pcb coil antenna design 13.56

to search some RFID product sheet,there is some information about pcb antenna.
In fact,the pcb antenna is microsrip antenna.

You may to https://www.ti.com

 

• Apr 16, 2004

• #11

C

chinaing

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pcb antenna spiral

use IE3D to simulation

 

• Apr 16, 2004

• #12

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elektryk

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pcb antenna

zubair said:

A good practicle book about printed antenna is "CAD of Microstrip Antennas for Wireless Applications" by Robert A. Sainati.

Click to expand...

Can anyone suggest any other literature, maybe something that can be downloaded from internet.

 

• Jun 22, 2004

• #13

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jupiter

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89s52

mingrf said:

we need an antenna freq.=13.56M, to make it
on PCB with Cu line, The L=3.5uH. how to select
the turns of the spiral inductor antenna?
thanks a lot.!

Click to expand...

In this depends on the distance of the RFID system and the power transmitted from the reader. If the distance is short, then less power and less number of turn can do the job. For a long distance, then higher power and more turns may be required. More over, the shape (design) of the tag antennas also affect this. So basically, you need to consider many factors in order to determine the number of turn and tranmitted power from the reader.