Most reported spatially combined or quasioptical amplifier arrays exhibit resonant narrowband performance (<10%) and have not addressed thermal management issues. We report a waveguide-based spatial combining scheme using broadband tapered-slot transitions, capable of realizing full waveguide band coverage (40% fractional bandwidth) with good thermal properties. An X-band prototype using eight ...

Raman amplification of a 49 cm Bismuth oxide (Bi2O3) as a nonlinear gainmedium based erbium doped fiber amplifier (EDFA) is reported in new and compactdesign in near infrared spectral regions. The bismuth glass host provides theopportunity to be doped heavily with erbium ions to allow a compact optical gain fiberamplifier design by using reduced fiber length and the 1480...

In this paper, a CMOS radio frequency (RF) multi-band band-pass amplifier using a high-Q active inductor load with a binary code band selector suitable for multi-standards wireless applications is proposed. By employing the improved high-Q active inductor including two bits binary controlled code, the RF multi-band amplifier operating at four different frequency bands is realized. The proposed ...

What is a Low-Noise Amplifier? Digital signal processing (DSP) systems require interfaces to the analog world. The first amplification stage in a radio receiver is typically the tuned low-noise amplifier (LNA), which provides enough amplification to the input signal to make further signal processing insensitive to noise. Although the primary goal in LNA design is to minimize the system noise fi...

In this paper, to substitute the existing TWTA(Travailing Wave Tube Amplifier) component in small radar system, we developed Ku band SSPA(Solid-State Power based on fabrication of power MMIC (Monolithic Microwave Integrated Circuit) chips. For development 500 W SSPA, 40 W-grade was designed by ADS(Advanced Design System) at Keysight company with UMS GH015 library, and processed foundry service....