Dual-Band Circularly Polarized Stack-Ring Antenna
Dual-Band Circularly Polarized Stack-Ring Antenna
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A stack-ring configuration is proposed for designing a dual-band circularly polarized (CP) antenna.Each ring generates iphone 14 price montreal different resonant frequencies.A good CP performance at both resonant frequencies is achieved by adjusting the relative distance between the two rings.The two operating bands are separated floor mat alarm for elderly with a small frequency ratio of 1.07.
Measured results show that radiation patterns with good CP characteristics are obtained at the two resonant frequencies.