Planar metamaterials and many microwave circuits and antennas are designed by means of resonators with dimensions much smaller than the wavelength at their resonance frequency. There are many types of such electrically small resonators, and the main purpose of this paper is to compare them as building blocks for the implementation of microwave components. Aspects such as resonator size, bandwid...

In this work, the signal and noise behaviors of a microwave transistor within its operation domain (CT,VDS, IDS , f ) are modeled by the Artificial Neural Network (ANN) and Fuzzy Logic System (FLS) without using any information on the microwave circuit theory . A worked example is presented where the same data is employed for both models selected from the manufacturer’s data sheets. Performance...

RF/microwave MEMS technology. Part one begins with a brief discussion of RF/microwave system requirements, and then introduces the enabling potentialities of the MEMS arsenal to meet these requirements. In particular, MEMS fabrication techniques are addressed, and fundamental components, including inductors, varactors, resonators and transmission lines, as well as the design/ CAD paradigm, are ...

An effective approach based on a multi-parameter rational fitting technique is proposed to model the microwave small-signal response of active solid-state devices. The model is identified by fitting multibias scattering-parameter measurements and its analytical expression is implemented in a commercial microwave circuit simulator. The approach has been applied to the modelling of a silicon-base...

The principle of recursive filters is well known in digital filtering. This paper deals with active recursive filters. A new design approach is presented. It will be shown that how active elements can be used in the design of amplification elements and large microwave time delay. The analytical and computer-simulated results will be presented for an active bandpass filter in the C-band. Key-Wor...

A powerful and systematic approach to behavioral modeling of nonlinear microwave/RF circuits in the time domain is presented, integrating several techniques from nonlinear dynamical systems analysis. Algorithms based on information-theoretic principles help determine efficient tradeoffs between model accuracy, speed, and complexity. Models are constructed from large-signal microwave measurement...

Circulators and directional amplifiers are crucial nonreciprocal signal routing and processing components involved in microwave read-out chains for a variety of applications. They are particularly important in the field of superconducting quantum information, where the devices also need to have minimal photon losses to preserve the quantum coherence of signals. Conventional commercial implement...

In this paper, a novel approach has been suggested to obtain an improved spurious-free window for dielectric resonator in microwave integrated circuit environment. In microwave integrated circuit environment, the dielectric resonator placed on a thin dielectric substrate gets located asymmetrically with respect to its shielding enclosure. A reduced separation in frequencies (mode separation) is...

For generation of photons above 100 keV with a magnetic field strength in the range 0.2-0.5 Tesla, an undulator wavelength λu shorter than 5 mm may be needed with beam in the Advanced Photon Source (APS) storage ring. A microwave beam waveguide undulator system has been investigated for generation of such light. The waveguide structure consists of two parallel reflector surfaces that can be der...

The steps followed in the design of an InP photonic integrated circuit (PIC) working as a discriminating receiver for Frequency Modulation-Direct Detection (FM-DD) Microwave Photonic links (MPL) are presented, including filter synthesis values.