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Phase shifter using an artificial magneto-dielectric for beam-tilting of base station array antenna
- Issue Date
- Dec-2011
- Publisher
- IEEE
- Keywords
- Array Antenna; Artificial Magneto-dielectric (AMD); Beam-Tilting; Phase Shifter; Split-Ring Resonator(SRR)
- Citation
- Asia-Pacific Microwave Conference Proceedings, APMC, pp.1334 - 1337
- Indexed
- SCOPUS
- Journal Title
- Asia-Pacific Microwave Conference Proceedings, APMC
- Start Page
- 1334
- End Page
- 1337
- ISSN
- 0000-0000
- Abstract
- A phase shifter using an artificial magneto-dielectric substrate for array antenna is proposed. The miniaturization was achieved using an artificial magneto-dielectric (AMD) realized by a split ring resonator (SRR). By using an AMD on a T-junction power divider, a phase shift was designed to operate over the Mobile-WiMAX band (2.3 GHz ∼ 2.4 GHz). The proposed AMD is compact in size and yields low insertion loss. The designed phase shifter has a return loss of higher than 10dB and transmission coefficient of less than 7dB from 1.8GHz to 2.4GHz. The array antenna with the proposed phase shifter has a beam-tilting capability of 10 degree at 2.4 GHz.
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