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120-GHz 2-bit reflection-type phase shifter based on PIN diodes switched-lines.
- Source :
- Electronics Letters (Wiley-Blackwell); May2023, Vol. 59 Issue 10, p1-3, 3p
- Publication Year :
- 2023
-
Abstract
- In this paper, a 2-bit digital reflection-type phase shifter (RTPS) working at 120 GHz is presented. It uses a compact coupled-lines coupler with low insertion loss and high isolation over a wide bandwidth. The loads are made by a microstrip-line loaded by three PN jonction separated by an intermediate region I (PIN) diodes whose states are tuned ON/OFF to obtain 90°, 180° and 270° phase shift relative to the reference (0°). Measurement results show root mean square (RMS) phase and amplitude error equal to 10.3° and 1.2 dB, respectively. The maximum insertion loss is equal to 8.6 dB, leading to a figure of merit of 31°/dB. As shown by simulation, by flipping PIN diodes and using negative voltage for biasing, the maximum insertion loss could be reduced to 3.6 dB (figure of merit of 75°/dB) along with a great improvement in RMS phase and amplitude errors, thus showing the potential of the proposed architecture. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 59
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Electronics Letters (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 164358096
- Full Text :
- https://doi.org/10.1049/ell2.12818