antenna-theory.com

[Lurker]

Greetings:

I am in a rural location trying to resolve internet issues.
Major cellular providers in the area are basically split between AT&T or Verizon. Both have their towers completely overloaded - so, while I may get good signal to/from the tower, it is grossly under provisioned for connected users.

Sprint is under-represented in the area, and does not suffer as much during peak demand times. However, they are quite limited in tower numbers and placement.
I can gain clear LOS to two Sprint towers that perform well in peak hours. However, both towers are approximately 7 miles away.

The bands that I want to use are Band 26 (TX, 1.9GHz) and Band 41 (Rx, 2.7GHz).

I am looking at a 2.4GHz grid parabolic antenna, with 24dBi gain.
Is there any way to calculate (approximate) the gain @ 1.9 & 2.7GHz?
I would be happy with anything over 10dB gain at those frequencies.

I've already contacted the manufacturer, and they have no data outside of the specified frequency range of the antenna.
This is a mature product for them, and they are not developing any new antenna products. As such, they have no engineers on staff to even hazard a guess.

I think this antenna is fairly representative of 24dBi gain grid style antennas.
1.7-2.7Ghz seems to be fairly well supported in "Wide Band" Antenna designs. But, I do not see Parabolic Grid Antennas with these continuous frequencies.

The antenna specifications I have are:
Frequency Range: 2400-2500 MHz
Gain: 24dBi
Vertical Beamwidth: 13 Degrees
Horizontal Beamwidth: 9.5 Degrees
F/B Ratio: ? 30dB
VSWR: < 1.5:1
Impedance: 50 Ohms
Physical Dimensions: 35.5" x 23.5"

Thank you in advance for any help or advice.

[admin]

Generally if you use an antenna for 2.4GHz, it is likely the gain is slightly higher at 2.7 GHz.

The same can't be true for 1.9 GHz, there may be significant fall off.

I'm surprised you can connect at 7 miles on these bands