A "turnstile network" is introduced which may be conveniently used for circular polarization synthesis. The network, outfitted with proper phasing stubs, forms a balanced quadrature hybrid; for an ...

Research On Radiation Characteristics of Rotating Magnetic Dipole Mechanical Antenna Abstract: In wireless communication systems, very low frequency(VLF) and ultra-low frequency(ULF) waves have the ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth.