Tsai, Y.-L.Y.-L.TsaiLin, C.-Y.C.-Y.LinWang, B.-C.B.-C.WangTSUNG-HSIEN LIN2020-06-112020-06-11201615497747https://scholars.lib.ntu.edu.tw/handle/123456789/499131An energy-efficient 400-MHz binary phase-shift keying (BPSK) transmitter (TX) is proposed for biomedical applications in this brief.The BPSKsignal is generated by edge-combining multiple phases from a low-frequency voltage-controlled oscillator (VCO), which avoids power-hungry local oscillator generation at RF. Furthermore, the output matching network and edge combiner are merged into a power amplifier (PA), leading to a hardware-efficient and low-power design. Fabricated in a 0.18-μm CMOS process, the proposed TX consumes 330 μW and delivers-15-dBm output power. The modulator operates at 0.8 V, and PA operates at 0.2-V supply voltage. The TX can support a data rate up to 20 Mb/s, achieving an energy efficiency of 14.9 pJ/bit. The measured error vector magnitude at 20 Mb/s is 10%. © 2004-2012 IEEE.BPSK transmitter; edge combiner; phase-MUX; short-range transmission[SDGs]SDG7Binary phase shift keying; Circuit oscillations; CMOS integrated circuits; Electric power supplies to apparatus; Low power electronics; Medical applications; Oscillators (electronic); Oscillistors; Phase shift; Phase shift keying; Phase shifters; Power amplifiers; Transmitters; Variable frequency oscillators; Binary Phase Shift Keying(BPSK); Biomedical applications; Edge combiners; Error vector magnitude; Low frequency voltage; Output matching network; phase-MUX; Transmitters (Tx); Energy efficiencyjournal article10.1109/TCSII.2015.25050802-s2.0-84969983761https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969983761&doi=10.1109%2fTCSII.2015.2505080&partnerID=40&md5=b31e63857adb9f8db92b398dd2fdd17a