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Title: Measurements of a cryogenic linear polarization modulator for mm-wavelengths
Authors: Gault, A.C.
Bierman, E.M
Hyland, P.O.
Keating, B.G
Malu, S.S.
Timbie, P.T.
Keywords: Ferrite devices
superconducting magnet
Issue Date: Apr-2012
Publisher: IEEE
Citation: IEEE Microwave and Wireless Components Letters, 2012, Vol. 22, p212-214
Abstract: Cryogenic Faraday phase modulators have been implemented in waveguide and tested in both a constant current mode and an alternating current mode. The loss of the phase shifter for DC currents that results in either a or phase shift is on average 1.45 dB over the entire W-band. In the modulating mode, it operates at frequencies as high as 4 Hz with transition times between the two phase states of 1.32 x 10-2 s.
Description: Open Access.
ISSN: 1531-1309
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Appears in Collections:Research Papers (A&A)

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