Looking for both a small panel antenna and disk yagi antenna design for 3g 1900mhz band

[Harry36 135]

Check dimensions

 

[Admin 2421]

Yes, Harry, you're right, I'm in a hurry, I'll correct the dimensions...!!

 

[calipso99 1]

@Admin ill keep you updated with pictures.

By the way, could you tell me which program you used to design the antenna?

would like to design my own without having to bother anyone.

[Admin 2421]

I use "cst" program but it is also good "hfss".

[calipso99 1]

8 hours ago, Admin said:

I use "cst" program but it is also good "hfss".

Thanks, so how much you think the dish will amplify the antenna's gain ?

[Harry36 135]

13 hours ago, Admin said:

Yes, Harry, you're right, I'm in a hurry, I'll correct the dimensions...!!

 

 

[Admin 2421]

Harry you can also give the dimensions ...???

[Admin 2421]

,,, another way of construction...

[calipso99 1]

@Admin im already have the 1st design under construction, unless you saw something wrong with it.

[Harry36 135]

On 30.10.2021 at 8:45 PM, clanon said:

Is it MiMo the dongle...? Two antennas...

it's 3G only SISO

[Harry36 135]

6 hours ago, Admin said:

,,, another way of construction...

Great job!

there are several questions:

Antenna 75 ohm? the first message was about the RG6 / U cable

Why display a VSWR graph from 0 if the value cannot be less than 1?

why display a value greater than 2 .... 2.5?

[Admin 2421]

,,, if you want to change the impedance is easy, displaying the VSWR  is from the program...!!!!

[Harry36 135]

On 31.10.2021 at 5:44 PM, Admin said:

,,, these are the promised dimensions ... !!!

frequencies 3G 1920-2170? at 2200 SWR = 6+. these dimensions are not very good. 

[calipso99 1]

Just now, Harry36 said:

frequencies 3G 1920-2170? at 2200 SWR = 6+. these dimensions are not very good. 

its ok, the antenna will only be used for 3g 1900mhz band. thats 1850-1990mhz

[calipso99 1]

Bad news , the antenna is just too big for the dish focal point mount, it will need to work as a standalone antenna.

 @Admin whats the range of the 1st antenna design you gave me?

i realized the cell tower to which i need to connect is 1.5km, and i have perfect line of sight with it.

[calipso99 1]

@Admin i figured maybe adding another parasitic element to it would give it more forward gain. im talking about the 1st design.

[Admin 2421]

,,, you don't have to add any parasitic director anymore, you have to cut out of the reflector to be able to be mounted on the offset dish...

[calipso99 1]

@Admin i really wouldnt want to keep pursuing the dish approach, it would require to modify the dish feed point boom and i dont have tools for that.

i have enough polysterene to add another two more parasitic elements to the 1st design.

[calipso99 1]

i got inspired by this, would want to turn the 1st design into this but with not that many parasitic elements. maybe just three or four after the active element.

[Admin 2421]

,,,andrew mcneil  has fakes often...!!!!

[calipso99 1]

@Admin yeah, he sometimes reviews fake and dodgy equipment.

that 2nd parasitic, whats the size and spacing from the 1st one ?

[Admin 2421]

,,, or maybe you want a Bester antenna ... ??? !!!

 

[calipso99 1]

@Admin that one actually would be easy to put inside a PVC pipe for protection outdoors. actually easier to make.

How do you calculate the diameter and element spacing for such antenna ? its basically a yagi-patch antenna with circular polarization. havent found a calculator that can design a panel-yagi antenna, let alone one that design one with circular polarization.