Antenna & RF/Microwave System
Laboratory

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​Multi-beam antenna system for hemispheric coverage 1

For multi-beam control and compact implementation, the proposed eight-port feeding network consists of an integrated beam-control block with a two-stage RF switch block, 12 quadrature hybrid couplers, and 12 90° phase shifters, and was designed and fabricated on a circular three-layer 1.2 mm FR-4 substrate. The diameter of the fabricated network is ~0.47 λ 0 at 915 MHz.

[Antenna Specification]



​Frequency band : 902-928 MHz

Maximum insertion loss : 4.…

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