Difference between Planar Antenna vs Conformal Antenna

This page on Planar Antenna vs Conformal Antenna provides difference between Planar and conformal antennas.

Specification	Planar Antenna	Conformal Antenna
Technology	Mature	Not matured yet
Beam control	phase only sufficient	Amplitude and phase more complicated
Polarisation	Single can be used; dual often desired	Polarisation control required and especially if doubly curved.
Gain	Drops with increased scan	Controlled, depends on shape
Frequency bandwidth	Typically 20%	Wider planar antenna is possible
Angular coverage	Limited to roughly +/-60 degrees	Very wide, half sphere
Radar Cross Section(RCS)	Large RCS	Lower than planer
Installation on platform	Planer shapes limits due to swept volume	Structurally integrated, leave extra space, no drag
Radome	Aberration effects	No conventional radome, no bore sight error
Packaging of electronics	Known multilayer solutions	Size restriction if large curvature, facets possible

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