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Need small directional antenna for bluetooth

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ok, let's restart from the begining: My project aims to realize a device calculating location of nearby bluetooth devices by comparing phases (but also amplitude) and applying AOA algorithm.
I've been told it would be good to get directional antennas of 30-45 degree beamwidth.
Maybe it is a wrong advice? Omni monopole antennas are a better?


thx
 

For 2.4 GHz I can make highly directional patch on 10x10 cm ground plane. Antenna height will be ~5mm.
Gain will be 10 dBi, beam width <60deg (~56 deg.)
Will that do?
 
AndreyG said:
For 2.4 GHz I can make highly directional patch on 10x10 cm ground plane. Antenna height will be ~5mm.
Gain will be 10 dBi, beam width <60deg (~56 deg.)
Will that do?
Click to expand...

Hello Andrey, could you please give more information about that antenna patch you are referring to?
Thanks!
 

Attached is one Low profile Bluetooth antenna design

Design
bluetooth.png

Project File
View attachment Bluetooth.zip
 
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