6 Еlement loop antenna

[Admin 2427]

,,,maybe only with more directors...!!!

[PeBac 2]

sounds good..!!

By the way, I am looking for a mechanically small and robust (panel ?) antenna (868MHz) with approx. 10 dBi gain, surrounded by steel on 5 sides.

Do you have any suggestions?

[Admin 2427]

,,,what do you understand "surrounded by steel on 5 sides"...????

[PeBac 2]

Reflector bent upwards on 4 sides to mechanically protect the inside of the antenna. I need a mechanically very robust antenna.

[Admin 2427]

,,,4 sides,not 5 sides...???

[PeBac 2]

sorry just an open front

and as robust as the following antenna:

[Admin 2427]

,,,,aaaaaa, that's what you want..???

[PeBac 2]

a little bit strange but the environmental conditions for these Antennas a quite challenging

[Admin 2427]

,,,then you don't want my type of antenna patch anymore...??

[PeBac 2]

No no of course it would be very kind to receive the CST-file of your antenna from you.

[Admin 2427]

,,, something like this...

 

 

PeBac800.cst

[PeBac 2]

exactly , thanks !!!!!
What would you suggest to make this antenna mechanically more robust?

and one more director please!

and 50 Ohms possible ?

 

[Admin 2427]

,,, okay, let's try...!!!

,,,should it be like that....???

 

,,, buddy, you know how to work with CST Studio...???

[PeBac 2]

Something, but unfortunately I'm not that good and fast with it. I'm trying to learn.

[PeBac 2]

I will try it with 2 directors, otherwise the antenna will be too long.

[Admin 2427]

,,,it has a length of only 385 mm...!!!

[PeBac 2]

I have to put it in a rugged enclosure too.

[Admin 2427]

11 minutes ago, PeBac said:

Something, but unfortunately I'm not that good and fast with it. I'm trying to learn.

,,,on this forum you can find some information...!!!

 

[PeBac 2]

I have done this monopole Yagi. It's not prefect but working fine in industrial environment . It's made from 20 mm steel mounted on a metal construction with N-Connector underside and has to work in both directions. About 5.4dbi ,VSWR 1.06 ,  S11 -30.5. Maxium  nearly horizontal.

[Admin 2427]

33 minutes ago, PeBac said:

I have done this monopole Yagi. It's not prefect but working fine in industrial environment . It's made from 20 mm steel mounted on a metal construction with N-Connector underside and has to work in both directions. About 5.4dbi ,VSWR 1.06 ,  S11 -30.5. Maxium  nearly horizontal.

,,,which antenna are you referring to...!!!!

[PeBac 2]

What do you think about an antenna like this ? a commercial one. should reach 14dBi at 868 MHz !? Too fragile for my needs.

[Admin 2427]

,,,if you have this type of antenna, please, if possible, give me its dimensions (I don't think it has 14 dBi gain).....!!!

[PeBac 2]

I pick up again next week and will give you the dimensions. I did a short check with the Nano-VNA. I don't remember the values but didn't look bad.

Performance in the field was quite good.( I too don't believe 14 dBi gain).

In the meantime I'm trying to "ruggidize" your BiQuad a bit.

Vova0,77.cst

[Admin 2427]

,,,the best, Bester Antenna...

[Admin 2427]

,,, it is still possible...