Linear Transistor Modeling Using Equivalent Circuits

The accurate transistor characterization is a starting point to carry out an amplifier design. Lumped circuit equivalent transistor models are compact and versatile means of providing reliable S parameter data. WIPL-D Microwave provides a complete environment to implement these models. The modeling of a…

Abstract: Simulation of complex microwave circuits presents a challenge for modern computational software. Using circuit level analysis is recommended option for the starting calculations in order to get results quickly. In circuit solvers, all circuit elements are modeled by predefined library components whose calculations…

In this application, we simulate 7-port divider from 1.4 GHz to 1.6 GHz. This device is realized in microstrip technology, fed by probe with SMA connector at Tx port and the remaining 6 ports (Rx) are microstrip ports. The model was made by…

The application note deals with complex dielectric resonator filters with numerous tuning elements. Careful comparison to measured results is carried out in each step. The story unfolds from a simple single cavity with the loop made of coax cable. The…

This application note describes use of WIPL-D software suite for simulation of the coupling between an object buried in the ground and a magnetic loop above the ground. The note illustrates that variation of the coupling with the movement of…

Ultra-High Frequency Panel antennas (UHFP antennas) consist of radiating surfaces and reflector. They have been used in TV systems. In the application note, it is covered with radome. Coaxial cable is used for feeding. In order to speed up simulations…