Dear K.Npatsran,
Please be note our message that we send to all vendor as below.
Dear Vendor,
According to RF Technical has been ported to use the outdoor antenna xx pol, 4 ports wide frequency band (1710-2170 MHz.) For both 4 Model is Gain / HBW -> 18/65, 21/65,. 21/33 and 24/33 by priority, as you know it.
Because AIS is now a need to change plans and adapt strategies to comply with the terms and restrictions of the outside as you know is a slow auction frequency 1800 MHz., With 4G or LTE1800 so we need to review and consider the limitations of these new carefully to fit with an antenna, the device is already in use, including the need to supply more. We believe that this event would be only temporary. But we are not saying when it will change. However, we have limitations in the area to install the antenna on a tower. We must try to limit the size of the antenna to the cross-sectional area (HxW) not exceeding 0.75 Square meter., but was found in 4 Model the way we receive information from the manufacturer. Although it can be designed to be cross-sectional area as we want. But it will be 2 times the width of the X-Pol antenna, which is no different with the antenna x-pol 2 originated splice. May only look better because it uses the same Radome which makes installation more difficult from normal actions. Therefore, we think that in the event of crisis that we have the opportunity and time enough for you to improve the design of the antenna is smaller again, might try to use technology of filter to help reduce the number of Element within the antenna from XX to X only but still be 4 ports as the same which the manufacturer can be separated port in each band is Port 1 (1710-1880 MHz.) and Port 2 (1920 -. 2170 MHz.) these can help manufacturers to design more easily.
Incidentally, for the same information that you submitted it. We would like to keep it as an option later again. It is requested that the document be delivered in the SOC that remains to be completed. For example antenna must be produced, or that you have on hand to be put to the test with our usual process is asking for a temporary stop until we will inform you in the following order.
Within the next week we will be out new specifications for Antenna XX-Pol, the fourth generation of the original things will change. The main is a major Frequency separation in each port and dimensions etc..
Finally, we must thank you for your interest and accepted to the proposed antenna as we want with it. But we apologize for the confusion that happens to you as well. Because we have the limitations mentioned above. However if you have concerns or questions, feel free to let us know.