10deg Beamwidth

[titan_wireless]

All,

Would 10deg beamwidth be too tight for most operators? What is your ideal beamwidth? Is 35deg too wide? Whats your opinions.

Thanks,
Tasos

[mp3turbo]

hello there,

ideal bandwidth doesn't exist, exactly as ideal car, house and woman does not. There are occasions where 1.5 degree is too much and there are other ones where 180 is too low.

bye, mp3turbo.

[titan_wireless]

MP3Turbo,

Thanks for your response. I should better ask my question. This would be in reference to a CPE antenna. Would you feel that you would require tighter beamwidth in that scenario? Would 10 to 35deg be good enough or is tighter better.

Thanks,
Tasos

[luka]

I would preffer smaller beamwidth.

[phendry]

I would love to locate a small 5.8 parabolic dish with a tiny beam width for CPE's or PTP's. This isn't so much for the gain but more for the fact that your less likely to pick-up outside interference. For sectors it's more of a case by case basis.

[Skaught]

I much prefer tighter beam, higher gain.

We currently use +23 radios with 15dbi antennas. I would prefer 19dbi if it is small, clean and compact. The 15dbi gets us to timing limit with good LOS but LOS is not always good.

[titan_wireless]

Thanks for all your inputs!

We are looking into designing a new CPE enclosure that would house our CPE equipment and AT. One that looks nice and smaller then a RooTenna. It looks like it will have about 10deg beamwidth with about 19 to 22db gain.

[mp3turbo]

hi titan_wireless,

CPE antennas? Hmm, as others said, I would also prefer to have them as directional as possible. Sadly, directionality comes in hand with power (legal limits etc), but we can't have antenna which has 3 degrees beamwidth and 15dB gain.

bye, mp3turbo.

[phendry]

Sadly, directionality comes in hand with power (legal limits etc), but we can't have antenna which has 3 degrees beamwidth and 15dB gain.

Surely you can just turn down the tx power of the radio card?? MT are about to bring out an enclosure. I think they will be with 20db and 22db varients but you still have the problem with them being big.

[titan_wireless]

We are looking to make one that is small about 10deg BW and about 20db gain.

[oscarBravo]

We are looking into designing a new CPE enclosure that would house our CPE equipment and AT. One that looks nice and smaller then a RooTenna. It looks like it will have about 10deg beamwidth with about 19 to 22db gain. I'm pushing slightly outside my limited radio expertise, but...

Isn't there a mathematical relationship between aperture size and theoretical maximum gain? I'm not certain it will be possible to get that kind of gain from an antenna smaller than a RooTenna.

This kind of discussion is more bminish turf, but he's still in a fjord somewhere...

[titan_wireless]

It would be hard if we used a Panel design. We are not looking at that style AT.

[phendry]

Hmm, CPE with integrated parabolic dish?? Now there's an interesting concept.