Multistage Complex-Impedance Matching Network Analysis and Optimization

Optimization Algorithm for Antenna Impedance Matching in Digitally Tunable Network

Impedance Matching Why Impedance Match ?

Also, the power-handling capacity of a transmission line is maximum when it is "flat", i.e., operating at low SWR. Lastly, it is important to be able to interconnect a number of different components into a system, and the only way that can be done reliably and predictably is by constraining the reflection coefficients of the various interfaces through impedance matching. Multiple reflections ca...

Wideband Complex Impedance Matching Using Unequal-Length Multi-Section Transformers

In this paper, the Multi-Section Transformers (MSTs), the lengths of whose sections are not the same, are proposed and considered as matchers between two complex and frequency dependent impedances in a wide frequency range. The optimum values of the MST parameters are obtained through optimization approach. The usefulness of the proposed structure is verified using some examples.

A Reconfigurable Impedance Matching Network Employing RF-MEMS Switches

We propose the design of a reconfigurable impedance matching network for the lower RF frequency band, based on a developed RF-MEMS technology. The circuit is composed of RF-MEMS ohmic relays, metal-insulatormetal (MIM) capacitors and suspended spiral inductors, all integrated on a high resistivity Silicon substrate. The presented circuit is well-suited for all applications requiring adaptive im...

Analysis and Optimization of a Multistage Inventory-Queue System

A important issue in the management of supply chains and manufacturing systems is to control inventory costs at different locations throughout the system while satisfying an end-customer service-level requirement. The challenge involved is to solve a nonlinear constrained optimization problem that captures the key dynamics of a complex production-inventory system. In this paper, we first develo...