Scanned microstrip arrays using simple integrated ferrite phase shifters

Article English OPEN
Batchelor, John C. ; Economou, L. ; Langley, Richard J. (2000)
  • Publisher: IEEE
  • Related identifiers: doi: 10.1049/ip-map:20000428
  • Subject: Q1
    arxiv: Physics::Instrumentation and Detectors | Physics::Accelerator Physics

A phase-steered microstrip antenna array is presented, suitable for application as a mobile vehicle satellite terminal. Phase shifters are implemented on a hybrid dielectric-ferrite substrate, and use is made of the phase transition near the cut-off region of the biased ferrite. Small permanent magnets and carefully biased ferrites remove the need for large applied electromagnetic fields. 2-, 3-and 4-element demonstrator arrays have been constructed, and up to 30 degrees beam squint has been achieved for applied magnetic biases of about 100Oe.
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