Bandwidth Analysis Of Phase Crossover And Non-Phase Crossover Frequency Operations Of Hais
2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING(2017)
Abstract
Scalar Holographic Artificial Impedance Surface (HAIS) is a modulated slow leaky-wave antenna whose surface impedance profile is obtained using holographic principle. The surface impedance modulation functions aid in the formation of the desired radiation pattern, polarization, aperture efficiency and bandwidth of the radiating structure. This paper compares the bandwidth of phase crossover and non-phase crossover frequency operations of scalar HAIS. It is shown that the non-phase crossover frequency operation provides an additional degree of freedom of structural modification to achieve desired polarization along with larger operational bandwidth.
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Key words
scalar HAIS,radiation pattern,Scalar Holographic Artificial Impedance Surface,surface impedance modulation,modulated slow leaky-wave antenna
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