SOME RESULTS ON CYLINDRICAL CAVITY RESONATORS 445 



61. R. S. Bolt, H. Feshbach, A. M. Clogston, "Perturbation of Sound Waves in Irregular 



Rooms," J.A.S.A., 14, pp. 65-73 (1942) — Experimental check of eigentones in a 

 trapezoid vs calculated values. 



Abstracts of Foreign Language Articles in Wireless Engineer 



62. H. Gemperlein," Measurements on Acoustic Resonators," 16, p. 200, No. 1504 (1939), 



63. M. Jouguet," Natural Electromagnetic Oscillations of a Cavity," 16, p. 511, No. 3873, 



(1939). 



64. M. S. Neiman, " Convex Endovibrators," 17, p. 65, No. 455, (1940). 



65. F. Borgnis, "The Fundamental Electric Oscillations of Cylindrical Cavities," 17, 



p. 112, No. 905, (1940). See also Sci. Abs., B43, No. 343 (1940). 



66. H. Buchholz, "Ultra-Short Waves in Concentric Cables, and the "Hollow-Space" 



Resonators in the Form of a Cylinder with Perforated-Disc Ends," 17, p. 166, No. 

 1301 (1940). 



67. J. Aliiller, "Investigation of Electromagnetic Hollow Spaces," 17, p. 172, No. 1379 



(1940).— Sci. Abs., B43, No. 857 (1940). 



68. V. I. Bunimovich, "An Oscillating System with Small Losses," 17, p. 173, No. 1380 



(1940). 



69. M. S. Neiman, "Convex Endovibrators," 17, p. 218, No. 1743 (1940). 



70. M. S. Neiman, "Toroidal Endovibrators," 17, p. 218, No. 1744 (1940). 



71. H. Buchholz, "The Movement of Electromagnetic Waves in a Cone-Shaped Horn," 



17, p. 370, No. 3009 (1940). — Cavity formed by cone closed by spherical cap. 



72. O. Schriever, "Physics and Technique of the Hollow-Space Conductor," 18, p. 18 



No. 2, (1941).— Review of history. 



73. F. Borgnis, "Electromagnetic Hollow-Space Resonators in Short- Wave Technique," 



18, p. 25, No. 61, (1941). 



74. T. G. Owe Berg, "Elementary Theory of the Spherical Cavity Resonator," 18, p. 287, 



No. 1843 (1941). 



75. F. Borgnis, "A New Method for measuring the Electric Constants and Loss Factors of 



Insulating Materials in the Centimetric Wave Band," 18, p. 514, No. 3435 (1941). — 

 An application of the cylindrical cavity resonator. 



76. V. I. Bunimovich, "The Use of Rectangular Resonators in Ultra-High-Frequency 



Technique," 19, p. 28, No. 65 (1942). Use in 17 cm oscillator. 



77. V. I. Bunimovich, "A Rectangular Resonator used as a Wavemeter for Decimetric 



and Centimetric Waves," 19, p. 37, No. 176 (1942). 



78. M. Watanabe, "On the Eigenschwingungen of the Electromagnetic Hohlraum," 19, 



p. 166, No. 927 (1942). 



79. F. Borgnis, "The Electrical Fundamental Oscillation of the Cylindrical Two-Layer 



Cavity," 19, p. 370, No. 2306 (1942). Considers cylindrical resonator with two 

 concentric internal cylinders of different dielectric constant. 



80. W. Ludenia, "The Excitation of Cavity Resonators by Saw-Tooth Oscillations," 19, 



p. 422-423, No. 2641 (1942). 



81. Ya. L. Al'pert, "On the Propagation of Electromagnetic Waves in Tubes," 19, p. 



520, No. 3181 (1942). — Calculation of losses in a cylindrical wave guide. 



82. V. I. Bunimovich, "The Propagation of Electromagnetic Waves along Parallel Con- 



ducting Planes," 19, p. 520, No. 3182 (1942). — Equations for Zo and attenuation of 

 rectangular wave guide, and resonant frequency and Q of rectangular cavity. 



83. C. G. A. von Lindern & G. de Vries, "Resonators for Ultra-High Frequencies," 19, 



p. 524, No. 3206 (1942). — Discusses transition from solenoid to toroidal coil to 

 "single turn" toroid, i.e., toroidal cavity resonator. 



Abstracts in Science Abstracts 



84. L. Bouthillon, "Coordination of the Different Types of Oscillations," A39, No. 1773 



(1936) .^General theory of mechanical, acoustic, optical and electric oscillations. 



85. Biirck, Kotowski, and Lichte, "Resonance Effects in Rooms, their Measurement and 



Stimulation," A39, No. 5226 (1936). 



86. G. Jager, "Resonances of Closed and Open Rooms, Streets and Squares," 40A, No 



306 (1937). 



87. K. W. Wagner, "Propagation of Sound in Buildings," A40, No. 2199(1937).— Trans- 



mission through a small hole in a wall. 



88. M. Jouguet, "Natural Electromagnetic Oscillations of a Spherical Cavity," 42A, No. 



3822 (1939). 



89. H. R. L. Lament, " Use of the Wave Guide for Measurement of Micro-wave Dielectric 



Constants," 43 A, No. 2684 (1940). 



