A FIRST ORDER APPROACH TO RADOME BORESIGHT ANALYSIS AND DESIGN
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS ANTENNA LAB
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A simplified first-order theory of radome boresight error is derived and applied to prediction and design problems. Reasonable predictive results are obtained for radomes with known boresight error. The dependence of boresight error on the derivatives of IPD and absolute value of T with respect to incidence angle is shown and the significance of polarization in light of the theory is discussed. Polarization control is shown to reduce boresight error when used with an appropriate radome wall design. The possibility of a cancellation design for a radome, wherein the errors due to phase tapering and to differential attenuation tend to cancel each other is pointed out. The concept of artificially introduced loss to achieve such cancellation is discussed. A design example is included. Radome design curves giving absolute value of T squared, IPD, dd thetaIPD, and dd theta absolute value of T for several important radome wall structures are also included.
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