This paper demonstrates the first packaged microelectromechanical systems-based phase shifter using high-pass/low-pass circuit topology. The device was fabricated with a process resembling available low-cost commercial S...
This paper presents modeling and analysis of the realization of high-power broadband RF power amplifiers (PAs) and power combiners. In the scope of the study, a model is proposed for a transmission line with a ferrite co...
Using ST 0.13-mu m CMOS technology, a class A power amplifier has been developed for the global system for mobile communication in Europe. To solve the problem of low breakdown voltage in deep-submicrometer CMOS technolo...
An original empirical approach to deal with nonlinear dynamic thermal effects in electron devices is proposed. The new technology-independent approach is very compact and easy to implement in computer-aided design tools....
A four-element phased-array front-end receiver based on 4-bit RF phase shifters is demonstrated in a standard 0.18-mu m SiGe BiCNIOS technology for Q-band (30-50 GHz) satellite communications and radar applications. The ...
The novel application of correlation radiometer theory to the detection of self-luminous objects at close range is presented in the context of human presence detection. Modifications and additions to techniques developed...
We have derived the transfer functions for two types of six-port quadrature phase-shift keying (QPSK) modulators and investigated their performances in terms of carrier leakage, Gray mapping, and conversion efficiencies....
The Ewald method is efficiently applied for the computation of the Green's function for a 3-D array of phased point sources. A best splitting parameter E, which avoids the loss of accuracy occurring at high frequencies w...
In this paper we present an accurate physical model of discretization error in a 1-D perfectly matched layer (PML) using the finite-difference time-domain method. The model is based on the concept of the discrete wave im...
This paper proposes a synthesis methodology for implementing microwave filters with a minimum insertion-loss configuration when several coupling topologies or coupling matrices are available with the selected technology....
Novel ultra-wideband (UWB) bandpass filters are proposed based on quasi-lumped-element prototypes and implemented with multilayer liquid-crystal-polymer (LCP) technology. In this study, the broadside-coupled microstrip r...
Microstrip parallel-coupled filters with generalized Chebyshev responses are presented. The basic structure of the proposed filter is a conventional parallel-coupled filter of which the physical dimensions can be easily ...
In this paper, we present the design and development of thin-film liquid-crystal-polymer (LCP) surface-mount packages for Ka-band applications. The packages are constructed using multilayer LCP films and are surface moun...
The via-plate capacitance for a via transition to a multilayer printed circuit board is evaluated analytically in terms of higher order parallel-plate modes. The Green's function in a bounded coaxial cavity for a concent...
Complex scattering parameter measurements using expensive vector network analyzers make microwave techniques inconvenient, for industrial-based applications. In industry, accurate and fast evaluation of materials' proper...
The noise power wave formalism is used to extract the noise parameters from the noise power measurement. A first step consists of calibrating the measurement setup. We only assume that the receiver is unidirectional. The...