High Efficiency and Small Group Delay Variations 0.18-$\mu$ m CMOS UWB Power Amplifier

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].…”

High Efficiency, Good phase linearity 0.18 µm CMOS Power Amplifier for MBAN-UWB Applications

“…After simplification and guided by ref [16]; (6) Based on the derived formula of the GD presented in Eq.6 and circuit simulation at Fig. 9, Inductor L int has a great effect on the GD variation where increasing its value will improve the GD performance.…”

“…However, the matching is not as good as resistive shunt feedback topology [10][11][12]. Whereas, the current reuse structure, compared to cascode and CS structure, offers better isolation and larger gain thanks to its higher output impedance and smaller miller capacitance [13][14][15][16][17]. However, its main drawback is the bad input matching.…”

A two-stage power amplifier design for ultra-wideband applications

“…Digital pulse wireless, more commonly known as ultra-wideband is a high bandwidth radio technology is used for short range and low-power communications [1][2][3][4][5]. UWB has come to be known as a direct competitor to bluetooth and WiMax as it can fully utilize high data rate along with wide spectrum efficiency while using less or very low power transmission [6][7][8][9][10][11][12][13][14][15].…”