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Admin

Antenna for digital TV

80 posts in this topic
On 14.07.2017 at 0:01 PM, Admin said:

So you like it?

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In my opinion, this patch is the optimal size of the reflector. Only slightly inferior vswr1 vswr2. This is enough for бэнд5. But, the dimensions are reduced.

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Yes, the dimensions are optimal but I can not adapt the second port

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On 13.07.2017 at 6:13 PM, Admin said:

Но я думаю, что для антенны LTE нужна круговая или эллиптическая поляризация ... !!!

Тебе нужна антенна ...

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washing goes directly to N-type. This circular disk can be done under бенд5 ?

Edited by chilanzar2

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No,  it's not good,this patch does not have a uniform bandwidth  and the bandwidth is quite narrow....!!!

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27 minutes ago, chilanzar2 said:

band5    824 - 849    869 - 894 

Very big patch....!!!!

size.jpg

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I did not understand. This circle can the second port be done? Or, better, two square patch antenna?

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better, two square patch antenna

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I think the problem with the MiMo antenna is solved....!!!

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From the history of the issue with the patch. We LTE800 turned on earlier than the other ranges. Frequency 2600 was busy mmds TV. Now there is a gradual replacement for LTE800 LTE1800 or LTE2600. Therefore, these antennas released. In the photo panel mimo LTE800. Cover moisture resistant PVC does not warp and does not limp.

 

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,,,so this HDTV antenna(650-800MHz) has only one support ... !!!

It's for my friend Garry...!!!

 

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,,, and this is perfect ...BW=650MHz-925MHz

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definitely using very thick material, and the size must also be large :/:/

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I'll try, my friend....!!!

But, however, the frequency range is very large...350 MHz....???!!!

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,,,, good, and then in what sense do you want me to optimize this antenna...????

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And yet, I do not understand, why you do not want to build this form of antenna ... ???

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1 hour ago, Admin said:

And yet, I do not understand, why you do not want to build this form of antenna ... ???

,,,,,Your Internet connection has a very high ping...!!!!

The "classic" version is easier to manufacture. Also I thought that it is possible to reduce the size of the reflector a little (so that the gain at low frequencies does not fall below 9 dBi). I also wanted the "butterfly" to be attached to the reflector on metal (and not dielectric as in the model) rods.

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13 minutes ago, Admin said:

However, the latter version is the best...!!!

Can you make this version using M6 metal studs?

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15 minutes ago, Admin said:

No, this is even better...

Not better. This antenna is much more complicated than batwing, and it's not as broadband. I need 470-820 MHz (to be more precise, then 500-800 MHz).

Edited by vars-cat

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