Wideband Reconfigurable Power Divider/Combiner in 40-nm CMOS for 5G mmW Beamforming System

Chang, Yu-Teng; Lin, Kun-You; Wu, Tzong–Lin

doi:10.1109/tmtt.2021.3135296

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…Accordingly, millimeter-wave (mm-Wave) circuits constituting the beamforming system are also developing. Recently, research has been active in securing more frequency bands with one beamforming system by securing wideband characteristics as well as improving the performance of mm-Wave circuits that make up the beamforming system [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Design Techniques for L-C-L T-Type Wideband CMOS Phase Shifter with Suppressed Phase Error

Jang,

Park

2023

Electronics

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In this study, we designed a K-band CMOS switch-type phase shifter. Equivalent circuits of shift and pass modes were analyzed to minimize phase errors in a wide frequency range. In particular, the impedance inside the equivalent circuit of the pass mode was analyzed to derive a frequency region in which the equivalent circuit of the pass mode becomes an L-C-L structure. Based on the fact that equivalent circuits in shift and pass modes can be regarded as L-C-L structures beyond a specific frequency, a design methodology of the wideband phase shifter was proposed through slope adjustment of the phase according to the frequency of each of the two modes. To verify the feasibility of the proposed design methodology, a 20°-bit phase shifter was designed through a 65 nm RFCMOS process. As a result of the measurement at 21.5 GHz to 40.0 GHz, the phase error was within 0.87°.

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Section: Introductionmentioning

confidence: 99%

“…The advantages and disadvantages of each phase shift structure have been summarized in previous studies [26]. These phase shifters, like other mm-Wave circuits [5,9], require wideband characteristics to be secured for the application of beamforming systems that can support multiple frequency bands [11,25].…”

Section: Introductionmentioning

confidence: 99%

Design Techniques for L-C-L T-Type Wideband CMOS Phase Shifter with Suppressed Phase Error

Jang,

Park

2023

Electronics

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Design of K-Band CMOS Extended Cascode Power Amplifier With Second Harmonic Termination to Enhance Output Power

Jeong,

Park

2024

IEEE Access

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A Wideband Bidirectional Amplifier Using Neutralized Technique for 5G Communication

Chang

2023

2023 Asia-Pacific Microwave Conference (APMC)

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Wideband Reconfigurable Power Divider/Combiner in 40-nm CMOS for 5G mmW Beamforming System

Cited by 7 publications

References 28 publications

Design Techniques for L-C-L T-Type Wideband CMOS Phase Shifter with Suppressed Phase Error

Design Techniques for L-C-L T-Type Wideband CMOS Phase Shifter with Suppressed Phase Error

Design of K-Band CMOS Extended Cascode Power Amplifier With Second Harmonic Termination to Enhance Output Power

A Wideband Bidirectional Amplifier Using Neutralized Technique for 5G Communication

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