Abidi, Asad A.: 'Low-power radio-frequency ICs and system architectures for portable communications' (Materials, Circuits and Devices, 1996), 'Low-power HF Microelectronics: a unified approach', Chap. 21, pp. 765-816, DOI: 10.1049/PBCS008E_ch21 IET Digital Library, https://digital-library.theiet.org/;jsessionid=2swu3cfk2jt8d.x-iet-live-01content/books/10.1049/pbcs008e_ch21