Synthesis of novel 8 x 8 beam-forming network for broadband multibeam antenna array

• Synthesis of a novel 8 x 8 beam-forming network (BFN) for broadband multi-beam antenna arrays in the X-band has been proposed. The synthesized BFN has 6 less path crossings than a classic Butler matrix. The BFN design is realized using basic elements such as slot-line transition and magic-Ts. A numerical simulation for the analysis of the frequency characteristics of the proposed BFN is carried out. In addition, we offer a design of an eight-channel multibeam antenna array consisting of the synthesized BFN and Vivaldi antennas. Eight spatial beams cover approximately 120 degrees in the azimuth plane with a peak gain of 12 dB in the range of 8.3-11.7 GHz. The proposed broadband multibeam antenna array has good performance, compactness, and ease of fabrication that would be an attractive candidate for radar, satellite communication, and wireless computer networks.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

beam-forming network

broadband multibeam antenna array

magic-T

synthesis

Vivaldi antenna

butler matrix

microstrip

transitions

design

Computer Science

Engineering

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