Band-limited antennas

[Capkirk123]

Just an idle thought that occurred to me.

Several antenna types, notably Yagis and helical antennas, are only effective at one radio frequency. At the moment, an antenna of this type configured to operate in the VHF or UHF band can be switched to higher frequency bands, where they will achieve unrealistically high gain values.

Being able to restrict an antenna to a single band or set of bands would allow for more realistic configuration of Yagi and Helical type antennas.

[DRVeyl]

A yagi is only effective at one band... but you still change its gain by changing its size [and adding elements]. A 3m-long yagi cut for VHF has very different gain from a 3m one cut for X band.

Omnidirectional antennas are also not omni-frequency. Realistically, they are sized differently for different frequencies. To preserve the "omnidirectional" use case, RA assumed away the physical size constraint and left the model as strictly appearance. Whereas for dishes, we treat the physical size as the key component driving performance.