Comment on “On the negative value of dielectric permittivity of the water surface layer” [ Appl. Phys. Lett. 83, 4506 (2003) ]

Annino, G.; Cassettari, M.
August 2004
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1301
Academic Journal
It is informed that recent studies conducted by N.T. Cherpak reported some measurements on the frequency shift and the merit factor of a whispering gallery dielectric resonator loaded by water and other materials. The obtained results appear of interest, since the dielectric properties of the samples can be potentially determined. It is concluded that the experimental results reported are well reproduced without invoking a negative dielectric constant for water. A positive shift of the resonance frequency of quasi-TM modes is expected in this geometry for any sample having extremely high dielectric losses.


Related Articles

  • Response to “Comment on ‘On the negative value of dielectric permittivity of the water surface layer’ ” [ Appl. Phys. Lett. 85, 1301 (2004) ]. Cherpak, N. T.; Barannik, A. A.; Prokopenko, Yu. V. // Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1302 

    It is informed that there is no need for the introduction of a negative dielectric constant for an explanation of positive shift of the resonance frequency of the dielectric resonator with water. It is further informed that similarity of experimental results on the frequency shift of resonator...

  • MULTILAYER DIELECTRIC RESONATOR ANTENNA TRANSMITARRAY FOR NEAR-FIELD AND FAR-FIELD FIXED RFID READER. Zainud-Deen, S. H.; Gaber, S. M.; Malhat, H. A.; Awadalla, K. H. // Progress in Electromagnetics Research C;Apr2012, Vol. 27, p130 

    A design of multilayer dielectric resonator antenna transmitarray for fixed radio frequency identification (RFID) reader applications is presented at 5.8 GHz. Three layers square dielectric resonator antenna (DRA) elements are mounted on dielectric substrate and used as a unit cell in the...

  • NOVEL MODELING AND DESIGN OF CIRCULARLY POLARIZED DIELECTRIC RESONATOR ANTENNA ARRAY. Ain, M. F.; Qasaymeh, Y. M.; Ahmad, Z. A.; Zakariya, M. A.; Othman, M. A.; Olokede, S. S.; Abdullah, M. Z. // Progress in Electromagnetics Research C;Jun2012, Vol. 28, p165 

    This paper presents a design of circularly polarized dielectric resonator antenna (DRA) array. The dielectric resonators (DRs) were excited by rectangular aperture coupling slots feed with a linear microstrip. The slot positions were determined based on the characteristic of standing wave ratio...

  • Whispering-gallery modes in a barrel-shaped dielectric resonator. Bludov, Y.; Kirichenko, A.; Kogut, A.; Kutuzov, V.; Solodovnik, V. // Radiophysics & Quantum Electronics;Dec2005, Vol. 48 Issue 12, p927 

    We experimentally study a new type of resonator, namely, a barrel-shaped dielectric resonator with whispering-gallery modes which is formed by the cutting dielectric hemisphere. Compared with a hemispherical dielectric resonator, the E type oscillation spectrum of such a resonator is rarefied...

  • The Features of the Characteristics of Forced Whispering-Gallery Modes in an Ellipsoidal Dielectric Resonator with Small Eccentricity. Kirichenko, A. Ya.; Kogut, A. E.; Kutuzov, V. V.; Solodovnik, V. A. // Radiophysics & Quantum Electronics;Apr2003, Vol. 46 Issue 4, p281 

    We study experimentally the whispering-gallery modes excited in a dielectric ellipsoidal resonator by a lumped-parameter radiation source and through distributed coupling of a dielectric resonant structure with a dielectric waveguide. Peculiarities of the formation of mode fields and spectra for...

  • K-BAND HARMONIC DIELECTRIC RESONATOR OSCILLATOR USING PARALLEL FEEDBACK STRUCTURE. Du, Y. C.; Tang, Z. X.; Zhang, B.; Su, P. // Progress in Electromagnetics Research Letters;2012, Vol. 34, p83 

    A novel K-band harmonic dielectric resonator oscillator (DRO) is presented. Two identical parallel feedback DROs constitute a symmetric structure by sharing the same dielectric resonator (DR). As a result of this special structure, the odd frequency output components offset while the even...

  • A WIDEBAND TRAPEZOIDAL DIELECTRIC RESONATOR ANTENNA WITH CIRCULAR POLARIZATION. Danesh, S.; Rahim, S. K. Abdul; Khalily, M. // Progress in Electromagnetics Research Letters;2012, Vol. 34, p91 

    A new design of a circularly-polarized (CP) trapezoidal dielectric resonator antenna (DRA) for wideband wireless application is presented. A single-layered feed is used to excite the trapezoidal shaped dielectric resonator to increase resonant frequency and axial ratio. Besides its structure...

  • Low-power near-field microwave applicator for localized heating of soft matter. Copty, A.; Sakran, F.; Golosovsky, M.; Davidov, D.; Frenkel, A. // Applied Physics Letters;6/21/2004, Vol. 84 Issue 25, p5109 

    We report a 9 GHz near-field microwave probe for local surface heating of microwave absorbing materials. The probe radiates microwave energy through a narrow slot microfabricated at the apex of the dielectric resonator. The microwave energy is concentrated in a small region close to the...

  • Conical Quasioptical Dielectric Resonator. Barannik, A. A.; Bunyaev, S. A.; Cherpak, N. T. // Technical Physics Letters;Oct2005, Vol. 31 Issue 10, p811 

    A dielectric resonator of the new type—conical quasioptical dielectric resonator—is proposed. The dependence of the resonance oscillation frequency, the quality factor, and the electric field distribution on the cone angle of such a resonator with a conducting screen in the base...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics