Folded Inverted Conformal Antenna
Encyclopedia
The Folded Inverted Conformal Antenna (FICA) belongs to the Microstrip antenna
family.
The FICA placement on the handset board and its feeding
mechanisms are similar to those used currently for the great majority
of handsets with internal planar inverted F-antenna (PIFA) components.
Whereas multiband PIFAs exhibit two resonant modes,
which operate by sharing the same available antenna volume, the FICA
structure is synthesised in order to sustain three resonant modes that
better reuse the volume.
The implementation of volume reuse allows spreading of the reactive electromagnetic energy associated with each resonant mode across the entire antenna volume. This results in FICA modes exhibiting a lower Q factor
and a wider fractional bandwidth than the corresponding PIFA modes.
Microstrip antenna
In telecommunication, there are several types of microstrip antennas the most common of which is the microstrip patch antenna or patch antenna...
family.
The FICA placement on the handset board and its feeding
mechanisms are similar to those used currently for the great majority
of handsets with internal planar inverted F-antenna (PIFA) components.
Whereas multiband PIFAs exhibit two resonant modes,
which operate by sharing the same available antenna volume, the FICA
structure is synthesised in order to sustain three resonant modes that
better reuse the volume.
The implementation of volume reuse allows spreading of the reactive electromagnetic energy associated with each resonant mode across the entire antenna volume. This results in FICA modes exhibiting a lower Q factor
Q factor
In physics and engineering the quality factor or Q factor is a dimensionless parameter that describes how under-damped an oscillator or resonator is, or equivalently, characterizes a resonator's bandwidth relative to its center frequency....
and a wider fractional bandwidth than the corresponding PIFA modes.