In the case of airborne applications, the radome forms an integral part of the airframe and its outer dimensions and shape are dominated by considerations of aerodynamics, structural strength and rain erosion. The radome must also be transparent to the radar signal with minimum distortion of the antenna pattern. For minimum aberration, the requirements are that the insertion loss and the insertion phase difference (IPD) suffered by a wave passing through the radome must be as near constant as possible over the range of incident angles. In addition to keeping the variation of IPD with angle of incidence to a minimum the difference in IPD for perpendicular and parallel polarizations must also be small. This system will measure in discreet patches the IPD and Insertion Amplitude Difference (IAD) for different angles of incidence over a curved contour such as a radome with computer controlled positioners. The IPD Correction system includes the integration of a computer controlled, automated sprayer/grinder system that can automatically increase or decrease the electrical thickness of desired spot locations on the interior surface of the radome. This system can also measure both the internal and the external profiles of the radome.

The system is also ideal for characterization of Frequency Selective Surfaces and Resistivity Coatings on radomes and other objects.

HVS will be glad to answer any questions on how the HVS Automated System can be used for your application. HVS will custom engineer the system to meet your needs and supply the necessary software to meet your application requirements.