An Ultra Wideband Efficient and Linear Power Amplifier for IEEE 802.15.3a applications

Ultra-wideband CMOS power amplifier for wireless body area network applications: a review

“…A hybrid technique power amplifier is a combination of the three main configurations of a power amplifier: cascaded topology, cascode topology, and shunt feedback topology. As shown in Figure 6, by combining more than one topology into the design of a power amplifier, many advantages can be achieved as compared with the one topology design [13]- [15], [18], [21], [28]- [33], [36], [37], [41]- [44], [48]- [50], [51], [57], [58]. To attain extra gain, several works have employed the cascode power amplifier topology followed by common-source topology [28].…”

“…In this section, a review of several published wideband power amplifiers is demonstrated [11]- [20], [21]- [30], [31]- [40], [41]- [50], [51]- [59]. A performance comparison between different schemes of power amplifier implementation is obtained in Tables 1 to 3.…”

“…As presented in this figure, using a one-stage amplifier [21], [23], [24], [26], [34], [35], [47]- [49] and a three- stage amplifier [11], [17], [39], [45], [55] are slightly used. The most used number of stages for power amplification is a two-stage amplifier [12], [16], [48]- [50], [53], [57], [21], [22], [25], [27], [28], [30], [38], [40]. It is considered a compromise regarding gain, gain flattens, bandwidth, power consumption, and area.…”

“…For ultra-wide CMOS power amplifiers for WBAN applications, higher power gain levels are required without sacrificing power consumption. Cascode schemes can achieve high gain and less power consumption for power amplifier implementation which makes that scheme the most attractive for WBAN applications [23], [24], [26], [30], [34], [35], [48]- [50], [57]. comparisons among different PA techniques for five published papers in terms of the power gain (dB), PAE (%), power consumption (mW), area (mm 2 ), gain flatness (±dB), input matching S11 (dB), and output matching (dB), respectively.…”

“…comparisons among different PA techniques for five published papers in terms of the power gain (dB), PAE (%), power consumption (mW), area (mm 2 ), gain flatness (±dB), input matching S11 (dB), and output matching (dB), respectively. Among the PA techniques are one-stage common-source amplifier [21], [47]- [49], two-stage cascaded amplifier [12], [16], [21], [22], [48], three-stage cascaded amplifier [11], [17], [39], [45], [55], one-stage cascode amplifier [23], [24], [26], [34], [35], two-stage cascode amplifier [25], [27], [38], [40], [53], and two-stage hybrid amplifier [30], [48], [49], [50], [57].…”