User Manual

Appendix A - Antenna Configurations Antenna Configurations
4Motion 839 System Manual
A.2 Antenna Configurations
A.2.1 Second Order Diversity Configurations
For this scenario, it is proposed to use one of the following configurations:
A.2.1.1 Two-Element Wide Slant (/----10λ----\)
This configuration consists of two dual-slant antennas separated by at least 10
wavelengths, when only one antenna element of each is connected, with different
polarizations.
This configuration is ready for upgrade to a four-element wide dual-slant array as
described in section Section A.2.2.1 by connecting the additional two elements.
This configuration is suitable for supporting future MIMO Matrix B techniques.
A.2.1.2 Two-Element Dual-Slant (X)
This configuration consists of a single dual-slant antenna. This configuration is
suitable for supporting future MIMO Matrix B techniques.
A.2.2 Fourth Order Diversity Configurations
For this scenario, the following configuration is proposed:
A.2.2.1 Four-Element Wide Dual-Slant ( X--10λ--X )
This configuration consists of two dual-slant antennas separated by at least 10
wavelengths. This configuration is suitable for supporting future MIMO Matrix B
techniques.
A.2.3 Beam-Forming/MIMO Configurations
This section provides guidelines for future antenna diversity configurations
supporting beam-forming/MIMO Matrix B techniques (not available in current
release).
In the receive direction, it is always recommended to use four receive branches. In
the transmit direction, it is recommended to use two transmit branches for MIMO
Matrix B configurations, and four transmit branches for beam-forming and
beam-forming plus MIMO Matrix B configurations.
A.2.3.1 Four-Element Wide Double Dual-Slant (//--10λ--\\)
This configuration consists of two pairs of dual-slant antennas separated by at
least 10 wavelengths, when only one antenna element of each is connected, with