A Power-Efficient Noise Suppression Technique Using Signal-Nulled Feedback for Low-Noise Wideband Amplifiers

Analysis of Active Feedback and its Influence on UWB Low Noise Amplifier

“…The drawback is that it achieves only gain up to 15 dB. In [4], Chin-Fu Li et al, proposed a signal nulled feedback technique that consists of an additional loop with capacitance and a transistor such that it suppresses the noise but the drawback in this technique is the reduction of gain.…”

“…A very good input matching is achieved by the resister R 1 and the inductor L 1 . The inter stage current reuse network is formed by the inductors L 5 , L 4 and C 1 and it is used to bias the transistor M 3 and therefore it drives less power from the supply. At high frequencies, a low impedance path is created through C 1 as the impedance of L 3 becomes large.…”

A low noise low power 45 nm technology based simultaneous switching noise (SSN) reduction model for mixed signal VLSI circuits

“…Hence, high performance of adder and multiplier structure is necessary to improve the efficiency of ALU unit [14]. To handle this problem, various techniques have been proposed and the most commonly used techniques are modulation of the clock system [15], decoupling capacitors [16], separate power supplies for analog and digital circuits, use of guard rings, noise cancellation through sensing the noise [17], use of in-built self noise detection circuits [18], improving the mutual coupling between the paths by varying width and length [19]. Other techniques utilize the use of logic families which do not generate noise but they guzzle higher power than the regular MOS devices [20].…”

A wideband BiCMOS thermal noise canceling low noise amplifier with temperature compensation

“…Unlike narrow band LNA that can be optimized at specific frequency, wideband LNA design experiences challenges due to the noise and power consumption tradeoff [6]. In recent years, various thermal noise canceling techniques have been studied in wideband LNA design to reduce the noise over the wide bandwidth [1,2,[4][5][6][7]. One widely used noise canceling method is obtained by a two-path feed-forward amplifier topology and the careful design of the gain of each path can come up with optimum noise cancelation of the thermal noise of the input transistor [4].…”

“…Therefore, one of the design considerations of small multiband antennas is to fulfill the operating bandwidth(s) of particular application standard(s). Several recent works of multiband WLAN/WiMAX antennas are reported in [1][2][3][4][5][6][7][8][9]. Design of dual band antennas with compact radiator size for WLAN applications have been proposed in Refs.…”