@conference{10902/27562, year = {2011}, url = {https://hdl.handle.net/10902/27562}, abstract = {The 26-36 GHz receiver for a radio astronomy radiometer, to characterize the polarization of the Cosmic Microwave Background, is presented. This receiver is based on very low noise cryogenically cooled amplifiers in the front-end module, while in the back-end module a broadband amplification and direct detection chain is operated at room temperature. Noise temperature of the low-noise amplifier (LNA) is 19 K when cooled at 18 K. Experimental results show a good sensitivity of the complete receiver with an effective bandwidth around 8 GHz. Moreover, output detected voltages agree with estimated values.}, organization = {This work has been funded by the Ministerio de Ciencia e Innovación (Spain) under Astronomy and Astrophysics research programme, reference AYA2007-68058-C03.}, publisher = {Institute of Electrical and Electronics Engineers, Inc.}, publisher = {Proceedings of the 41st European Microwave Conference (EuMC), Manchester, UK, 2011, 1181-1184}, title = {The Ka-band receiver for the QUIJOTE experiment}, author = {Cano de Diego, Juan Luis and Villa Benito, Enrique and Aja Abelán, Beatriz and Fuente Rodríguez, Luisa María de la and Artal Latorre, Eduardo and Watson, Robert and Blackhurst, Edward and Edgley, John and Baines, Colin}, }