The QUIJOTE experiment is a Spanish-British collaboration, which major objective is the measure the polarization of the cosmic microwave background and of the different galactic components, in the frequency range 10-44 GHz. It consists of three instruments: MFI (multi-frequency instrument), TGI
(thirty-ghz instrument), and FGI (forty-ghz instrument) and two telescopes,
at the Teide Observatory in the Tenerife island.
It has been partially supported by a Consolider Ingenio project: EPI (Exploring the Physics of Inflation).
For more information see: http://www.iac.es/proyecto/cmb/pages/en/quijote-cmb-experiment.php