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A broadband microwave radiometer using correlation technique

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2 Author(s)
Nakano, Hiroshi ; Electrotech. Lab., Tsukuba, Japan ; Kato, Y.

A broadband microwave radiometer of the differential type has been designed by adopting a correlation scheme with a quadrature hybrid coupler (QHC) and without devices that limit the radiometer bandwidth. We have confirmed its usefulness over 6-12.4 GHz by experimental tests. The correlator used in the radiometer offers in-phase and quadrature-phase outputs. The advantage of this correlator has been investigated

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Instrumentation and Measurement, IEEE Transactions on  (Volume:48 ,  Issue: 2 )