USER MANUAL
BAR mXTENDTM (FR01-S4-232)
Last updated on January 2018
© 2018 FRACTUS ANTENNAS, S.L. - 6
Comments:
Note that in this case the Evaluation Board (Figure 1) integrates two BAR mXTENDTM
Antenna Boosters that are placed together to provide operation at LTE700 (698 – 798
MHz). Please see Figure 10 for the recommended footprint.
The efficiency measures (Figure 3) are shown from 700 MHz due to the minimum
frequency specifications of the Satimo STARGATE 32 anechoic chamber.
2.2.1. MATCHING NETWORK
The specs of a Fractus Antennas standard product are measured in their Evaluation Board,
which is an ideal case. In a real design, components nearby the antenna, LCD’s, batteries,
covers, connectors, etc. affect the antenna performance. This is the reason why it is highly
recommended to place pads compatible with 0402 and 0603 SMD components for a matching
network as close as possible to the feeding point. Do it in the ground plane area, not in the
clearance area. This provides a degree of freedom to tune the BAR mXTENDTM Antenna
Booster once the design is finished and taking into account all elements of the system
(batteries, displays, covers, etc.).
Please notice that different devices with different ground planes and different components
nearby the BAR mXTENDTM Antenna Booster may need a different matching network. To
ensure optimal results, the use of high Q and tight tolerance components is highly
recommended (Murata components).
Matching network for the Evaluation Board
Figure 2 – Matching networks implemented in the Evaluation Board 3 ports (Figure 1).
These matching networks apply to this Evaluation Board. Other configurations would require a
matching network adjustment. Please contact info@fractusantennas.com for more information
related to the antenna booster matching service.