Single-reflector-type wide beam-spacing multibeam antennas

Single-reflector-type wide beam-spacing multibeam antennas

Japanese commercial communications satellites (CSs), which are 50 to 60 degrees from the Japanese broadcasting satellite (BS), have begun direct broadcasting service. Simultaneous reception of broadcasting from CSs and BS requires a multibeam antenna with wide beam‐spacing. an optimum reflector for...

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Veröffentlicht in:Electronics & communications in Japan. Part 1, Communications Communications, 1995-06, Vol.78 (6), p.68-81
Hauptverfasser: Naito, Izuru, Makino, Shigeru, Furuno, Takayoshi, Katagi, Takashi
Format: Artikel
Sprache:eng
Schlagworte:
aberration
multibeam antennas
single reflector
Wide beam-spacing
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Zusammenfassung:Japanese commercial communications satellites (CSs), which are 50 to 60 degrees from the Japanese broadcasting satellite (BS), have begun direct broadcasting service. Simultaneous reception of broadcasting from CSs and BS requires a multibeam antenna with wide beam‐spacing. an optimum reflector for a single‐reflector‐type wide beamspacing multibeam antenna is presented on the basis of wave aberration analysis of defocus‐fed reflector without restrictions on reflector symmetry and feed displacement amount.
ISSN:8756-6621
1520-6424
DOI:10.1002/ecja.4410780606