'Aperture efficiency' diaporamas de présentation

A 50 MHz System for GMRT

A 50 MHz System for GMRT. N. Udaya Shankar K. S. Dwarakanath Raman Research Institute, Bangalore, INDIA. MWA Meeting, Canberra, 18-23 Jan 2009. TEAM S. Amiri, R. Somasekar, B.S. Girish, Arvind Nayak, Wenny Laus, S. Kasturi, Sujatha. Outline. Objectives of a 50 MHz system for GMRT.

550 views • 41 slides

ATA/SKA Issues

483 views • 34 slides

An Instrumental test observation for 22GHz and 43GHz quasi-optical circuit of KVN receivers

An Instrumental test observation for 22GHz and 43GHz quasi-optical circuit of KVN receivers. Seog-Tae Han, Jung-Won Lee, Jiman Kang, Sang-Sung Lee, Do-young Byun, Do-Heung Je, Moon-Hee Chung, Seog-Oh Wi. March 18 th 2009. Outline. Eevaluation of Quasi-optical circuit for

348 views • 26 slides

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?????????????? ( ??????? ) ? ??????????? VLBI ???????? Evaluation of a Radio Telescope Using a Quad-ridge Horn Antenna on Geodetic VLBI. ???? 1,2,3 ????? 2 ????? 2 ???? 2 ????? 2 ???? 1 ????? 1 ????? 3 1 ? ????? 2 ??????????? , 3 ????????????. A Original Radio Telescope. CARAVAN2400.

203 views • 20 slides

ALMA front-end beam efficiency evaluation

ALMA front-end beam efficiency evaluation. A.M. Baryshev NOVA/SRON/RuG. Outline. band 9 optics measurement system (example) Band 9 efficiency analysis NA FEIC data for band 9 and band 7 Q/A. The beam pattern measurement Set-Up. Typical near field measurements. Amplitude. Phase.

375 views • 19 slides

Aperture Antennas

Aperture Antennas. INEL 5305 Prof. Sandra Cruz-Pol ECE, UPRM. Ref. Balanis Chpt. 12. Aperture Antennas. Most common at microwave frequencies Can be flushed-mounted We will analyze radiation characteristics at far field Rectangular aperture Circular aperture.

641 views • 14 slides