Title :
A Broadband WR10 Turnstile Junction Orthomode Transducer
Author :
Pisano, Giampaolo ; Pietranera, Luca ; Isaak, Kate ; Piccirillo, Lucio ; Johnson, Bradley ; Maffei, Bruno ; Melhuish, Simon
Author_Institution :
Dept. of Phys. & Astron., Manchester Univ.
fDate :
4/1/2007 12:00:00 AM
Abstract :
We present a broadband waveguide ortho-mode transducer for the WR10 band that was designed for CLOVER, an astrophysics experiment aiming to characterize the polarization of the cosmic microwave background radiation. The design, based on a turnstile junction, was manufactured and then tested using a millimeter-wave vector network analyzer. The average measured return loss and isolation were -22 dB and -45 dB, respectively, across the entire WR10 band
Keywords :
astronomical instruments; network analysers; radiofrequency cosmic radiation; transducers; waveguide junctions; broadband WR10 turnstile junction orthomode transducer; cosmic microwave background radiation; millimeter-wave vector network analyzer; Astronomy; Extraterrestrial measurements; Instruments; Manufacturing; Millimeter wave measurements; Polarization; Rectangular waveguides; Tellurium; Transducers; Waveguide junctions; Ortho-mode transducer (OMT); turnstile junction;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.892976
