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This paper presents a wideband low-noise mixer in CMOS 0.13-um technology that operates between 2–10.5 GHz. The mixer has a Gilbert cell configuration that employs broadband low-noise transconductors designed using the negative-positive feedback technique used in low-noise amplifier designs. This method allows broadband input matching. The current-bleeding technique is also used so that a high conversion...
In this paper, a new distributed active mixer is presented. The scheme is based on the conventional Gilbert-cell multiplier with complementary transconductance stage. By adding the preamplifier and non-uniform artificial transmission lines on the topology, the new distributed active mixer is obtained. Comparison of the new mixer with the topology in absence of preamplifier shows that it has higher...
In this paper an ultra-broadband linear distributed power amplifier (DPA) is presented. This amplifier consumes only 100 mW DC power and amplifies input powers up to −3.7 dBm with a power gain of 16.7 dB linearly. Output power at 1-dB compression point is 13 dBm in the linear-mode. By increasing the level of input power, the amplifier no longer works in the linear-mode, drain efficiency and non-linear...
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