Design request? Patch-Yagi for Inmarsat

[BrashEndeavours 0]

First of all, thank you for all the great posts I’ve got the chance to read. It’s really incredible what has been designed here!

Unfortunately, I do not own the antenna design software to try my project on my own.

I hope this request is allowed and it’s in the right spot.  In my browsing I could not find a design I am looking for. What I am looking to make is a patch-yagi similar to the popular wifi gun design. It will be used for amateur reception on Inmarsat messaging.

Constraints:

Fc = 1550MHz 
BW = 80MHz  
Max Physical Length = 30”   
Centre Support = 1/4” or 5/16” allthread   
Beamwidth = no concern

 

Thank you in advance for your time, antenna gurus!!
 

 

 

[Admin 2545]

,,,hi buddy...!!!

,,, first of all, I say to you, welcome to this website...!!!

,,,secondly I ask you if you refer to such an patch-yagi antenna...???

[BrashEndeavours 0]

Hello! Yes that is the type!

But with more elements that will fit in 30”. Like this attachment.

The satellites are geostationary so beam width isn’t an issue, only bandwidth.

i would be willing to donate some money for the time to commission such an antenna design.

[Admin 2545]

,,, for the frequency of 1550MHz ... ???

[BrashEndeavours 0]

Yes, to match the filtering provided by this filter/LNA, to receive Inmarsat.

https://www.nooelec.com/store/sawbird-plus-io.html

[BrashEndeavours 0]

Oh, and polarized RHCP , but that is not extremely important.

[Admin 2545]

 L-Band (Inmarsat AERO/STD-C) Bester Antenna RHCP polarized 1542 MHz Center Frequency..???

 

 

[ErickTem 0]

Concern:

This has happened a couple times: I log onto my alt in the mines and to find that alt on the other side of Alora O.O Whats up what that? a bug?

[BrashEndeavours 0]

12 hours ago, Admin said:

 L-Band (Inmarsat AERO/STD-C) Bester Antenna RHCP polarized 1542 MHz Center Frequency..???

 

 

Yes. I cannot find that specific antenna, but that is the application!

[Admin 2545]

 I'm working on this(for 1542 MHz), does it suit you ... ??

[BrashEndeavours 0]

4 hours ago, Admin said:

 I'm working on this(for 1542 MHz), does it suit you ... ??

Yes, that looks awesome!  
I can’t wait until your design is ready so I can build it.

[Admin 2545]

,,, okay, but you can try that too...gain 14 dBi...!!!

 

,,,polarized antenna...

[Admin 2545]

Nooelec Inmarsat Patch Antenna - High Gain (3.5dBi) 1550MHz PCB Antenna with SMA Connector for AERO

[BrashEndeavours 0]

18 hours ago, Admin said:

Nooelec Inmarsat Patch Antenna - High Gain (3.5dBi) 1550MHz PCB Antenna with SMA Connector for AERO

I have that exact one! 
it might be good, but signals so weak it does not fit my application.

I will try to build the model you linked above!

i assume it is okay to keep adding elements at 75mm spacing?
 

[Admin 2545]

,,, this is the right model for the requested frequency...

 

 

[Admin 2545]

BrashEndeavours,I think that for the reception of the Inmarsat satellite it would be better if a parabolic dish were used...!!!