Antenna Parameters
The following
reference only
information is provided for those who are exploring alternate antenna solutions for their specific use case.Notes :
The only approved and certified antenna solution is the one provided with the development kit. Changing the antenna voids any regulatory certifications achieved by the shipping configuration. |
General Recommendations
Design Parameter | Recommendation |
Impedance | 50 ohm |
Antenna pattern | Omnidirectional |
MIMO isolation | > 15 dB |
Envelope correlation coefficient | < 0.5 |
Efficiency | > 50% (-3 dB) |
Maximum Permitted Gains
Operating Frequency | Max Gain |
2.4 GHz | 3.24 dBi |
2.5 GHz | 3.47 dBi |
5.2 GHz | 3.73 dBi |
5.5 GHz | 4.77 dBi |
5.7 GHz | 4.77 dBi |
Antenna peak gain shall be equal to or less than the value listed.
Comparison Table of Antenna Types
Type | Opportunities | Obstacles |
Chip antenna | Easy to implement
Quick time-to-market | Material and assembly costs
Medium performance |
PCB monopole antenna | No component and replacement costs
Quarter wave monopole has a theoretical gain of ~5.15 dBi
Good performance | Medium level of layout skills needed
Matching circuit recommended |
PCB dipole antenna | No component and replacement costs
Half-wave dipole has a theoretical gain of ~2.15 dBi
Good performance | Medium level of layout skills needed
Matching circuit recommended
Larger footprint than chip and monopole solutions |
See also: Antenna Placement and Antenna Connector Detail.