Calibration of Lead-Line Response Contribution in Measured Radiation Patterns of IR Dipole Arrays

A bolometer, which is in the shape of an antenna, is investigated as an infrared detector. Similar to antenna-coupled bolometers, this device can be designed to meet specific spectral, polarization, and directional criteria. The fabricated device is not an isolated antenna; it contains lead lines for biasing and signal extraction, which also respond to the incident radiation and contribute to the measured response. An additional device is designed to measure this response component, which is then removed from the measured response of the device containing the antenna. The measured radiation patterns without lead-line contributions show excellent agreement with the simulated patterns.