Phase Measurement of RF Devices Using Phase-Shifting Interferometry Karl Will, Student Member IEEE, and Abbas Omar, Fellow, IEEE Abstract-- A novel measurement technique is introduced for high-resolution phase measurements of RF devices. It is based on phase-shifting interferometry and is, therefore, fairly independent of the absolute magnitude of the measured RF signal, as demonstrated by measure

Optimization of an Open-Ended Microwave Oven for Microelectronics Packaging Keith I. Sinclair, Member, IEEE, George Goussetis, Member, IEEE, Marc P. Y. Desmulliez, Alan J. Sangster, Tim Tilford, Chris Bailey, Senior Member IEEE, and A. Kevin Parrott Abstract--A physically open, but electrically shielded, microwave open oven can be produced by virtue of the evanescent fields in a waveguide below c

Negative-Zero-Positive Refractive Index in a Prism-Like Omega-Type Metamaterial Fuli Zhang, Sylvain Potet, Jorge Carbonell, Member, IEEE, Eric Lheurette, Olivier Vanbésien, Xiaopeng Zhao, and Didier Lippens Abstract--Negative-zero-positive index refraction was demonstrated numerically on the basis of full-wave analysis of a microstructured omega-type array and experimentally via angle resolved tr

Multilayer 180° Coupled Line Hybrid Coupler Veljko Napijalo, Member, IEEE, and Brian Kearns Abstract--This paper presents a theoretical analysis of a 180° hybrid coupler based on coupled lines. The analysis is applicable for the case where the non-TEM nature of coupled lines must be considered. The method used to analyze the coupler is based on an analytical T matrix approach, which provides suita

Manufacturing Reliability of LTCC Millimeter-Wave Passive Components Torben Baras, Member, IEEE, and Arne F. Jacob, Senior Member, IEEE Abstract--The manufacturing reliability of low-temperature co-fired ceramic circuits up to millimeter-wave frequencies and the associated tolerances are studied. The printing accuracy and software tools are initially verified. In the main part of this study, repre

High-Efficiency Hybrid EER Transmitter Using Optimized Power Amplifier Ildu Kim, Student Member IEEE, Young Yun Woo, Jangheon Kim, Junghwan Moon, Jungjoon Kim, and Bumman Kim, Fellow, IEEE Abstract--This paper describes a new design approach for a power amplifier (PA) of the highly efficient hybrid envelope elimination and restoration (H-EER) transmitter. Since the PA operates mostly at the avera

Editorial E ARE proud to join the European Microwave Association and its Proceedings in sponsoring this 2007 European Microwave Week Special Issue of this TRANSACTIONS. This Special Issue contains 17 expanded conference papers that reflect some of the best work presented during the 2007 European Microwave Week. The topics touched upon in this Special Issue include both linear and nonlinear devices

Differential Colpitts VCO for Enhancing Transceiver Performance in Specified UHF Mobile RFID Environment Conditions Hyoung-Hwan Roh, Student Member IEEE, and Jun-Seok Park, Member, IEEE Abstract--In this paper, we introduce a differential Colpitts voltage-controlled oscillator (VCO), performing a signal oscillation with low phase noise. The proposed VCO is a part of our RF integrated circuit (IC)

Contactless Vector Network Analysis With Printed Loop Couplers Thomas Zelder, Member, IEEE, Bernd Geck, Michael Wollitzer, Member, IEEE, Ilona Rolfes, Member, IEEE, and Hermann Eul, Senior Member, IEEE Abstrac-In this paper, an introduction to contactless vector network analysis is given. Furthermore, the implementation of a contactless measurement setup is presented using different printed coupl

Complete Design and Measurement Methodology for a Tunable RF Impedance-Matching Network Christophe Hoarau, N. Corrao, J.-D. Arnould, Philippe Ferrari, and Pascal Xavier Abstract--This paper presents the design, fabrication, and characterization of a compact narrowband tunable impedance-matching network. A prototype was fabricated in hybrid technology using coplanar waveguide transmission lines Ian