Microwave Community Research Articles

Microwave community meets in Dublin

Microwave community meets in Dublin

The Spectral-Domain Approach for Microwave Integrated Circuits

A survey is given of the so-called spectral-domain approach, an analytical and numerical technique particularly suited for the solution of boundary-value problems in microwave and millimeter-wave integrated circuits, The mathematical formulation of the analytical part of that approach is described in a generalized notation for two- and three-dimensional strip and slot-type fields. In a similar way, the numerical part of the technique is treated, keeping always in touch with the mathematical and physical background, as well as with the respective microwave applications. A discussion of different specific aspects of the approach is presented and outlines the peculiarities of shielded-, covered-, and open-type problems, followed by a brief review of the progress achieved in the last decade (1975-1984). we survey closes with considerations on numerical efficiency, demonstrating that spectral-domain computations can by speeded up remarkably by analytical preprocessing. The presented materal is based on ten years of active involvement by the author in the field and reveals a variety of contributions by West German researchers previously not known to the intenational microwave community.

Technology Summaries for Microwave Theory and Techniques--1983

This paper consists of compendia of advances for the calendar year 1983 in four selected technical areas of interest to the microwave community. These four areas are Hybrid MIC's, Microwave and Millimeter-Wave Solid-State Devices, Microwave Field Theory, and Microwave Systems.

Historical Perspectives on Microwave Field Theory

Microwave Field Theory furnishes the foundation for all of the microwave circuitry that made possible the great advances achieved by the microwave field. It is important to understand that microwave field theory is only a portion of electromagnetic field theory in general, and to appreciate how it is distinguished from it. In addition, the network formulation of microwave field theory has been fundamental to the rapid progress made by the microwave community; the formulation in network terms has been so intertwined with the development and understanding of the field concepts and behavior that the network formulation should be viewed as an integral part of microwave field theory. The first part of this introduction explains the point of view indicated in the above paragraph. The second part of the introduction outlines the scope of the historical review presented here.

Comments from the Editor, Jan. 1978

This Issue of the Transactions represents a milestone for me. Although I began my duties as Editor six months ago, this is the first issue for which I am responsible. I look forward to my tenure as Editor, appreciate the opportunity this position affords to contribute to the exchange of technical information among the microwave community. My view of "what the Editor does" has changed considerably in these past few months, and, it is with much deeper appreciation that I say to Don Parker, and all the Past Editors, "Congratulations, sincere thanks for a job well done."

The Six-Port Reflectometer: An Alternative Network Analyzer

Although the six-port measurement technique is rapidly gaining the attention of the microwave community, the theoretical development, to date, yields but limited practical insight into its operation. Following a brief review of the prior art, such that the six-port techniques may be placed in proper perspective, this paper presents an alternative introduction leading to much better insight, and to design criteria for a six-port circuit which optimally exploits the concept.

Foreword, Apr. 1975

The idea for this Special Issue on Microwave Communications grew out of a desire to couple the device and circuit designers within the microwave community more closely to the systems that utilize the outputs of their technologies. Accordingly, this Special Issue has been assembled in order to describe systems either currently operating, or under development, whose concept was stimulated, and existence made possible, by devices and circuits developed by members of the MTT Society and the organizations they represent.

Comments from the Editor, Mar. 1975

Although this is the second issue of the TRANSACTIONS for which I am responsible, I have been intimately involved in the Editorship for about eight months. I appreciate the opportunity to contribute to the exchange of technical information and knowledge among the microwave community in this way.