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Conference Paper
Implementation of Single Chip 28 GHz SPDT Switch-less Front-end Circuits in a 65nm CMOS process
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- Issue Date
- 2023-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2023, pp.1814-1816
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents the implementation results of a single-chip 28 GHz SPDT-less front-end IC for 5G mobile communication services. The focus of the present paper is on investigating the implementation performance of a low-loss RF front-end architecture eliminating the SPDT switch in a conventional front-end. According to the measurement results, the SPDT-less design shows negligible loss at the output stage and hence higher output power. The fabricated CMOS chip exhibits excellent performance, with a peak gain of 20.8 dB and a 3-dB bandwidth of 4 GHz (28 GHz – 32 GHz) in the Tx-mode. In Rx-mode, a wider bandwidth characteristic of 7.4 GHz (25.6 GHz – 33 GHz) and a peak gain of 18.9 dB are observed. The overall results demonstrate the potential of the SPDT-less front-end for efficient reception and future low-loss RF front-end designs.
- KSP Keywords
- 28 GHz, 3-dB bandwidth, 5G mobile communication, 6 GHz, 65nm CMOS, CMOS Process, Communication services, Output Stage, Output power, RF front end, SPDT Switch