While an ideal Doherty power amplifier has a linear response, the load modulated balanced (LMBA) compressive response under conditions. This inherent nonlinear characteristic is due to lower contribution of single auxiliary device as transistors approach compression. article presents LMBA with two-stage control signal in place device. The idea preserve high and constant gain across high- low-po...

This article reports on the first demonstration of distributed amplifier monolithic microwave integrated circuits (MMICs) with a bandwidth (BW) more than 300 GHz. The three presented utilize uniform traveling-wave topology six, eight, and ten unit cells, respectively. In this article, impact connection between gate line transistors achievable performance is investigated. It demonstrated that sh...

When a slowly varying voltage is detected the main problem is the noise especially when it is several times greater than the signal itself. A lock-in amplifier is used to measure the small signals in presence of noise. The aim of this paper is to do a digital lock-in amplifier based on virtual instrument language LabVIEW and later on, it will replace a practice of a subject from the Physics’ de...