Smullin L.D., Montgomery C.G. (ed.) Microwave Duplexers

New York: McGraw-Hill, 1948. — 437 p. — (MIT Radiation Laboratory Series. Volume 14)This volume of the Radiation Laboratory Series is connected with the theoretical and practical aspects of the design of duplexing circuits for use in microwave radar equipments, and of the gas-filled switching tubes (TR and ATR tubes) used in these duplexers. For a clearer picture of the equipment with which a duplexer must work the reader is referred to the following volumes of this series: Vol. 16 “Microwave Mixers,” Vol. 9 “Microwave transmission circuits,” vol. 23 “Microwave Receivers” and Vol. 6 “Microwave Magnetrons.”
The work upon which this book is based was done under the urgency of war commitments, and the main goal was always the production of a particular tube or duplexer circuit before a certain target date. As a result, many corners were cut and many intuitive steps were taken without clearly understood reasons, and there are today many gaps in our knowledge of the phenomena involved. This applies with particular emphasis to the problem of the high-frequency gas discharge. It is our belief that the material presented here fairly represents the present state of the art.