Compal Electronics Inc PICONODE Manual De Usuario
PicoNode Integration Specification
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this design, a pi-matching network exists to match the antenna. This is recommended but not
necessary if the antenna is already matched with VSWR of 1.5:1 or better. Note that antennas
should not have gain at the harmonic frequencies and only dipole-type antennas should be used.
Antennas with gain at the fundamental frequency of more than 9 dBi should not be used.
necessary if the antenna is already matched with VSWR of 1.5:1 or better. Note that antennas
should not have gain at the harmonic frequencies and only dipole-type antennas should be used.
Antennas with gain at the fundamental frequency of more than 9 dBi should not be used.
Figure 15 Controlled Impedance RF Trace Design
Other controlled impedance RF trace configurations are acceptable as long as the characteristic
impedance stays within the boundary limit of 50 ohm ± 10%. Most PCB fabrication shops can
adjust the trace width of the controlled impedance traces such that 50 ohms is maintained. The
PCB shop must guarantee the impedance of the traces to within the 50 ohm ± 10% boundary
limit by impedance testing the PCBs.
impedance stays within the boundary limit of 50 ohm ± 10%. Most PCB fabrication shops can
adjust the trace width of the controlled impedance traces such that 50 ohms is maintained. The
PCB shop must guarantee the impedance of the traces to within the 50 ohm ± 10% boundary
limit by impedance testing the PCBs.