A 21.5 ~ 25 GHz 7‐bit phase shifter with passive vector‐sum topology
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32783
Abstract: A 7‐bit passive phase shifter with low‐phase error is presented in 65 nm CMOS technology. The vector‐sum topology is implemented to enable passive phase shifter the ability of flexible phase calibration. Therefore, the passive phase shifter… read more here.
Keywords: phase shifter; topology; vector sum;
A low loss RC I/Q generator for vector-sum applications
Sign Up to like & getrecommendations! Published in 2019 at "AEU - International Journal of Electronics and Communications"
DOI: 10.1016/j.aeue.2019.152852
Abstract: Abstract This letter proposes a method to reduce the loss of multi-stage RC polyphase filters (PPFs), which are capable of generating in-phase and quadrature (I/Q) output signals in a broadband bandwidth. The proposed two-stage PPF… read more here.
Keywords: low loss; loss; loss generator; vector sum ... See more keywords
A 4–10 GHz Programmable CMOS Vector-Sum Phase Shifter for a Two-Channel Transmitter
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2022.3173042
Abstract: A 6-bit full-span programmable vector-sum phase shifter was presented in this brief. A transformer-based matching network is used to match the PPF-based I/Q generator to the variable gain amplifier-based vector-modulator (VGA-based VM), which eliminates the… read more here.
Keywords: phase shifter; ghz; vector sum; phase ... See more keywords
Analysis and Design of a Ku-Band Bidirectional Time-Varying Vector-Sum Phase Shifter in 0.13-μm CMOS Technology
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2022.3218241
Abstract: This brief describes a Ku-band passive time-varying phase shifter (TVPS). The time variable is introduced into the conventional vector-sum phase shifter (VSPS) architecture, and the time-varying vector-sum method is proposed for the first time to… read more here.
Keywords: time; time varying; phase; phase shifter ... See more keywords
A Simplified Vector-Sum Phase Shifter Topology With Low Noise Figure and High Voltage Gain
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"
DOI: 10.1109/tvlsi.2022.3152169
Abstract: An simplified vector-sum phase shifter (VSPS) topology is proposed in this article. The proposed VSPS topology employs only one 90° coupler to perform as both an I/Q generator and a vector summer. Compared with the… read more here.
Keywords: topology; simplified vector; gain; vector ... See more keywords
Photonic generation of background-free binary and quaternary phase-coded microwave pulses based on vector sum.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.020774
Abstract: A photonic microwave phase-coded pulse generator is proposed and experimentally demonstrated based on the principle of vector sum. The key component of the proposed pulse generator is an integrated polarization-division multiplexing Mach-Zehnder modulator (PDM-MZM) and… read more here.
Keywords: microwave; phase coded; binary quaternary; vector sum ... See more keywords