Title :
S-band octave-bandwidth orthomode transducer for the Expanded Very Large Array
Author :
Coutts, Gordon M. ; Dinwiddie, Hollis ; Lilie, Paul
Author_Institution :
Nat. Radio Astron. Obs., Socorro, NM, USA
Abstract :
The Expanded Very Large Array (EVLA) project is currently under way to upgrade the Very Large Array (VLA) to improve the sensitivity, bandwidth, spectral resolution and frequency coverage of the existing array of 27 radio telescopes. The EVLA receivers will provide continuous frequency coverage from 1 GHz to 50 GHz. Three of the cryogenically cooled EVLA receivers will provide octave band coverage for the L-band (1 GHz to 2 GHz), S-Band (2 GHz to 4 GHz) and C-band (4 GHz to 8 GHz).
Keywords :
antenna arrays; radio receivers; transducers; C-band; L-band; S-band octave-bandwidth orthomode transducer; cryogenically cooled EVLA receivers; expanded very large array; frequency 1 GHz to 50 GHz; frequency coverage; octave band coverage; radio telescopes; spectral resolution; Bandwidth; Coaxial components; Electromagnetic waveguides; Feeds; Frequency; Impedance; Manufacturing; Polarization; Transducers; Waveguide transitions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5172251
