Welcome to WIFI Antennas

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Sign in to follow this  
Followers 0
clanon

PY2BS patch (adapted to 2.437ghz)

I'd never found a good feed for DEEP DISHES ( i have a 1,26 m , 0.31 m deep dish F/d 0.25  ) THIS IS IT

This brasilian  colleague designed an small patch for 432 MHZ satélite double polarization (i only needed ONE)

What's most important to me are the 180 degrees of illumination at about -6 db of gain...

 -6dB beamwidth of around 180 deg (good for f/D ratios 0.25 (focal plane dishes) to 0.3)

-6dB in beamwidth corresponds  to a -10dB edge illumination (max gain) since there is an additional -4dB spreading loss to the edge at these low f/D ratios.

the coax is running inside a graphite tube (all i have at hand from a broken arrow) center of patch and coming back from behind

 

20131001_154323.jpeg

MINE.JPG

MINE 2.JPG

Share this post


Link to post
Share on other sites

 

,,, anyway, you can do a simulation ... !!!???

Share this post


Link to post
Share on other sites

 

,,,yes, very interesting, you can also give dimensions ... !! ???

Share this post


Link to post
Share on other sites

Posted (edited)

5.4  - 5.5 mm from patch to reflector

17 mm ring

11 - 12 mm from edge to feeding point

ALL this settings for DEEP DISHES ...f_D 0.25 to 0.3

The DISH HIGHLY INFLUENCE the FEEDER

 

Captura.JPG

Edited by clanon
1 person likes this

Share this post


Link to post
Share on other sites

Dual polarized patch over a 0.6 lambda circular reflector. The feed includes a tuning disc for each polarization.

screenshot_49.png

1 person likes this

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0