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An S-band 6-bit full 360° phase shifter using wideband quadrature generation with pole-zero manipulation

Nobakht Sarkezeh, M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1016/j.aeue.2019.153027
  3. Publisher: Elsevier GmbH , 2020
  4. Abstract:
  5. In this paper a 6-bit vector-sum phase shifter with a full 360° variable phase-shift range for S-band has been designed and simulated using standard 180 nm CMOS technology. A new In-phase and Quadrature (I and Q) network to generate quadrature signals with minimum I and Q amplitude mismatch over wide bandwidth is proposed and deployed in the vector sum phase shifter. The designed phase shifter achieves an RMS (root mean square) phase error less than 1.34° and an RMS amplitude error less than 0.43 dB over wide bandwidth of 2 – 4 GHz, resulting in a 6-bit resolution. The gain of phase shifter chain varies from 3 to −6 dB over S-band of 2 – 4 GHz. Moreover the input of phase shifter is widely matched to 50 Ω antenna. The proposed phase shifter draws 7.5 mA from 1.8 supply voltage. The active core chip size occupies an area of 0.143×0.122 mm2. © 2019 Elsevier GmbH
  6. Keywords:
  7. Active balun ; Phase shifter ; Quadrature generation network ; Vector-sum ; Antennas ; Bandwidth ; Active baluns ; Amplitude errors ; Amplitude mismatches ; Quadrature generation ; Quadrature signal ; Vector sum ; Vector sum phase-shifters ; Wide-band ; Phase shifters
  8. Source: AEU - International Journal of Electronics and Communications ; Volume 115 , 2020
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1434841119309215