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PicoNode Integration Specification
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9 Antenna Diversity
The picoNode supports Antenna Diversity for optimal System performance. In many cases, the
picoNode and Host system are mounted in fixed locations that often experience nulls in the RF
coverage. Antenna Diversity can help with optimization of the RX and TX paths. In marginal
coverage areas, an RF null could easily disadvantage the picoNode to force it to transmit at a
higher TX Power (more battery energy) or cause network loss and frequent rescanning to
reacquire the network (again, more energy).
picoNode and Host system are mounted in fixed locations that often experience nulls in the RF
coverage. Antenna Diversity can help with optimization of the RX and TX paths. In marginal
coverage areas, an RF null could easily disadvantage the picoNode to force it to transmit at a
higher TX Power (more battery energy) or cause network loss and frequent rescanning to
reacquire the network (again, more energy).
Figure 13 Antenna Diversity
9.1 Antenna Design Considerations
Good antenna design is also crucial to success. It is important to consider some pertinent
issues. Compal and our partners provide a service to review your PCB layout to ensure good
RF design practices have been followed. Compal and our partners provide a service to field
test the antenna performance of your device, vs. a perfect reference. Over time we have
found that good RF performance is possible, even in tight enclosures, if we work
cooperatively.
issues. Compal and our partners provide a service to review your PCB layout to ensure good
RF design practices have been followed. Compal and our partners provide a service to field
test the antenna performance of your device, vs. a perfect reference. Over time we have
found that good RF performance is possible, even in tight enclosures, if we work
cooperatively.