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The structure of the AP is similar to other types of plugins. It is composed of the following:
- evaluate(): returns the calculated antenna gain;
- consistencyCheck(): see section 8.2.2;
- description(): the unique name of the PMP and an optional description (but highly recommended in order to show the user its characteristics and its scope of application);
- Input: see section 8.2.1.
Figure 335: Basic structure of the AP Anchor F335 F335
The referenced parameters are detailed as follow (only different to the EPP, see section 14.7.2, and the PMP, see section 8.6.3):
- AntennaResult:
It contains the information about the parameters relevant for the antenna, for instance the height, azimuth and elevation angles as well as the local environment and position it is placed at - Double:
It is the peak gain of the antenna.
There are basically two options to create antenna plugins:
- Static:
The plugin predefines static values of the antenna pattern and uses these for the calculation of the gain. You can, in addition, edit (i.e. modify / replace) the values on the system and / or antenna library level. - Dynamic:
The plugin dynamically calculates the antenna pattern (e.g. ITU-R Recommendation like ITU-R F.1336 etc…) using these for the calculation of the gain.
Simple examples are shown in section 14.5.1 (static) and section 14.5.2 (dynamic).