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A D‐band quadrature‐hybrids‐based 5‐bit vector‐modulated phase shifter with low RMS phase error.
- Source :
-
Electronics Letters (Wiley-Blackwell) . Sep2022, Vol. 58 Issue 19, p717-719. 3p. - Publication Year :
- 2022
-
Abstract
- This letter presents a D‐band 5‐bit vector‐modulated phase shifter based on quadrature hybrids for D‐band phased arrays. The proposed vector‐modulated phase shifter employs two stages of quadrature hybrid followed with a single‐pole double‐throw switch for I/Q phase splitting and vector‐summing. To improve the isolation performance, traveling‐wave single‐pole double‐throw switches together with transistor parallel inductors are adopted. A marchand balun followed with two variable gain amplifiers is placed between the two quadrature hybrids for I/Q amplitude weighting. A proof‐of‐concept vector‐modulated phase shifter is designed and fabricated in 0.13 μm SiGe BiCMOS technology and occupies a core chip area of 0.45 mm2. Measurement results show that the RMS phase error is 1.6° at 149 GHz and the RMS gain error is below 2.8 dB over 146–156 GHz. The DC power consumption is 148 mW. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHASE shifters
*PHASED array antennas
Subjects
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 58
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Electronics Letters (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 158916814
- Full Text :
- https://doi.org/10.1049/ell2.12580