This paper describes a 60-GHz differential power amplifier (PA) designed in a 120-GHz fT 90nm CMOS technology. It consists of three identical differential cascode stages with inter-stage matching implemented by wide-gap coplanar waveguide (CPW) structures and M6M5 plate capacitors. A double-stub network realized by CPWs provides more design freedom for the input matching. Load-pull simulation g...

* D Abstract --Lossless broad-band microwave active inductors for generalpurpose use in microwave circuits are proposed and their characteristics are discussed. These active inductors are composed of a common-source cascode FET and a feedback FET, and operate in a wide frequency range with very low series resistance. A maximum Q factor of 65 is obtained. Theoretically, it can reach infinity. Fu...

This work presents a study of the use of a transistor with a different configuration in the channel region, named GradedChannel (GC), for analog application in current mirror circuits with different architectures: Common-source, Cascode and Wilson. A comparison will be done between current mirrors implemented with standard (uniformly doped) SOI and GC SOI nMOSFETs by using simulation and experi...

A fast settling multipath CMOS OTA for high speed switched capacitor applications is presented here. With the basic topology similar to folded-cascode, bandwidth and DC gain of the OTA are enhanced by adding extra paths for signal from input to output. Designed circuit is simulated with HSPICE using level 49 parameters (BSIM 3v3) in 0.35 um standard CMOS technology. The DC gain achieved is 56.7...

Problem statement: The Low Noise Amplifier (LNA) is a core block of an Ultra Wide Band (UWB) receiver since it amplifies a very weak signal received at the antenna to acceptable levels while introducing less self-generated noise and distortions. The LNA design poses a unique challenge as it requires simultaneous optimization of various performance parameters like power gain, input matching, noi...

The history of RF and microwave computer-aided engineering is documented in the annals of the IEEE Microwave Theory and Techniques Society. The era began with elaborate analytically based models of microwave components and simple computer-aided techniques to cascade, cascode, and otherwise connect linear component models to obtain the responses of linear microwave circuits. Development has beco...

This paper presents a pre-amplifier latch based CMOS comparator design. This design is premeditated to be used as a comparator window. This design is attractive due to its low power dissipation and speed. Preamplifier implies a cascode structure which stabilizes the output voltage and latch with its regenerative feedback which makes comparison fast along with detection of small difference betwe...

This paper proposes an equation-based multi-scenario iterative robust optimization methodology for analog/mixed-signal circuits. We show that due to local circuit performance monotonicity in random variations constraint maximization can be used to efficiently find critical constraints and worst-case scenarios of random process variations and populate them into a multi-scenario optimization. Thi...

A modification of the conventional Flipped Voltage Follower (FVF) to enhance its output resistance is presented. It consists of replacing the conventional cascoding transistor of the basic cell by a regulated cascode scheme. This decreases the output resistance by a factor gmro approximately, the gain of a transistor as an amplifying stage. This is achieved with only two additional transistors ...