is mostly electric, its resonant frequency will decrease; if the stored energy of the displaced field is mostly magnetic, its resonant frequency will increase. This happens to be the case for mode. The most common problem exhibited by dielectric resonator circuits is their sensitivity to temperature variation and mechanical vibrations. Even though recent improvements in materials science and manufacturing mitigated some of these issues, compensating techniques still may be required to stabilize the circuit performance over temperature and frequency. Common applications The most common applications, of dielectric resonators are: Filtering applications (most common are bandpass and bandstop filters), Oscillators (diode, feedback-, reflection-, transmission- and reaction-type oscillators), Frequency-selective limiters, Dielectric Resonator Antenna (DRA) elements. See also YIG sphere Notes References Lord Rayleigh, “On the Passage of Waves Through Tubes, or the Vibration of Dielectric Cylinders”, Philosophical Magazine, Vol. 43, pp. 125–132, February 1897. D. Hondros, “Ueber elektromagnetische Drahtwelle,” Annalen der Physik, Vol. 30, pp. 905–949, 1909. H. Zahn, “Ueber den Nachweis elektromagnetischer Wellen an dielektrischen Draehten,”, Annalen der Physik, vol. 37, pp. 907–933, 1916. R.D. Richtmyer, “Dielectric Resonators”, J.Appl. Phys., Vol. 10, pp. 391–398, June 1939. Darko Kajfez and Piere Guillon, Dielectric Resonators, Artech House, Dedham, MA, 1986. Marian W. Pospieszalski, “Cylindrical Dielectric Resonators and Their Applications in TEM Line Microwave Circuits”, IEEE Trans. Microwave Theory Tech., Vol. MTT-27, pp. 233–238, March 1979. A. Okaya and L.F. Barash, “The Dielectric Microwave Resonator”, Proc. IRE, Vol. 50, pp. 2081–2092, October 1962. M.J. Loboda, T.E. Parker and G.K. Montress, "Temperature sensitivity of dielectric resonators and dielectric resonator oscillators," Proc. of the 42nd Annual Freq. Cont. Symp., pp. 263–271, Jun 1988. J.K. Plourde and C. Ren, “Application of Dielectric Resonators in Microwave Components”, IEEE Trans. Microwave Theory Tech., Vol. MTT-29, pp. 754–769, August 1981. Radio frequency antenna types Wireless tuning and filtering Antennas (radio)