AX-2000 OFFSET 75

[Admin 2546]

The ANTEX AX-2000 OFFSET 75 irradiator complete with an offset mirror antenna (not included) is designed to increase the range of 3G modems in the 1705-2175 MHz range . A mirror antenna with an irradiator significantly improves the quality of communication at the borders of 3G service areas. The active vibrator of the irradiator is securely hidden from precipitation and aggressive influences in a plastic case.

Overall dimensions, 120x120x60mm

To choose the right diameter of the "plate", refer to the following table:

Antenna diameter-Resulting gain factor

0.55 m-19 dBi

0,6 m-20 dBi

0.9 m-23 dBi

1.2 m-26,5 dBi

1.5 m-28 dBi

 

Thus, the larger the antenna diameter, the greater the gain.

We recommend: use antennas of 0.55-0.9 meters, because they have a relatively small windage, use" plates " of domestic production. But you can also use any other offset antenna.

 

[clanon 247]

looks a lot like EIA dual dipole feed ...but wideband

[Admin 2546]

,,, this antenna could be quite good...

 

T-Antenna.cst

[Harry36 140]

The antenna has an impedance of 75 ohms, in the model the port is -50 ohms. Is the design not original? In the original, the antenna is offset from the center of the reflector. The radiation pattern deviates from the normal ~ 5 degrees.

[Admin 2546]

I do not have the dimensions of the original antenna and the impedance can adapt to 75 Ohm.

[clanon 247]

parallel stripes (transmission line )  width...separation ?

distance to reflector...?

Edited September 20, 2021 by clanon

[Admin 2546]

57 minutes ago, clanon said:

parallel stripes (transmission line )  width...separation ?

distance to reflector...?

,,,see the cst*file(T-Antenna) above...!!!

[clanon 247]

i didn't see it...GREAT!

i'll check it now

CAN 't OPEN it is newer version...Cst2020 mine 

Edited September 20, 2021 by clanon

[Admin 2546]

,,,try with cst2021...!!!

,,,or maybe I'd better give you the drawing ...!!!