MIFA antenna design

Rohit Arora

Other Parts Discussed in Thread: CC2511

Hi I am using the MIFA antenna for ESp32 module. I have designed the antenna as per the ESP32 Wroom module but I can see all teh EVm boards use 1oz copper thickness. I f I want to increase the thickness to 2oz what wil be the effect on antenna. I am not using any ground layer or any plane below antenna.

over 1 year ago

0 ZC over 1 year ago

TI__Genius 17865 points

Hi,

This forum is for TI product support only - you will need to seek advice from the relevant manufacturer.

Regards,
Zack

0 Rohit Arora over 1 year ago in reply to ZC

Intellectual 360 points

Antenna will be same for all the designs considering Application note from TI AN043

0 ZC over 1 year ago in reply to Rohit Arora

TI__Genius 17865 points

Hi,

Just for clarification (as the device isn't listed in the original post), what TI product is being used in this design?

0 Rohit Arora over 1 year ago in reply to ZC

Intellectual 360 points

CC2511

0 ZC over 1 year ago in reply to Rohit Arora

TI__Genius 17865 points

Thank you - I will assign it to our 2.4 GHz Applications team for further support.

0 Jake Pulliam over 1 year ago in reply to Rohit Arora

TI__Expert 6520 points

Hi Rohit,

There should be no measurable effect going from 1 oz to 2 oz copper thickness.

BR,

Jake

0 Rohit Arora over 1 year ago in reply to Jake Pulliam

Intellectual 360 points

Thank you Jake for confirming. One more concern, I am using Isola 370HR for my PCB and thickness of PCB will be 1.6mm. is that fine?

0 Jake Pulliam over 1 year ago in reply to Rohit Arora

TI__Expert 6520 points

Hi Rohit,

Yes Isola 370HR is fine (similar to what's specified in the design, DE104). If you're changing the thickness of the PCB this can affect the antenna resonant frequency. You will want to simulate to see if any adjustment needs to be made.

BR,

Jake

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MIFA antenna design