I know how it's done at 150 MHz. Maybe you can adapt it to 36 GHz.
It's done with a hybrid ring made out of coax. Three sides are 1/4 wave and the fourth side is 3/4 wave. Feed the two antennas to opposite ports of the ring and take off the two polarizations at the other two opposite ports.
As a possible lead to a source of more information they are often used in radio astronomy.
Regards.
Max. K 4 O D S.
Email: max@...
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----- Original Message -----
From: "microwaveengineer1968" <microwaveengineer1968@...>
To: <hp_agilent_equipment@...>
Sent: Saturday, November 03, 2007 4:25 PM
Subject: [hp_agilent_equipment] Circular polarization antenna question
Ok guys this is not directly related to agilent t+m but im banging my
head on the wall with this !
Im looking for material on how to design and build a turnstile
polarization converter, i googled up and down but cant find anything
usefull , not even in the books i have.
The problem i have requires me to design and build a 36GHz circular
polarized horn antenna, the antenna needs to have two ports one for
right and the other one for left turn polarization .
any help would be appreciated
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