Digitale Medien
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
79 (1996), S. 3390-3396
ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
We calculate how the radiation pattern, the quality factor Q, and the resonant frequency of a dielectric disk resonator are altered from that of free space when the resonator is brought in close proximity to a lossy dielectric plane. The calculations are compared with measurements performed at frequencies near 10.4 GHz on a sapphire disk resonator that is within a wavelength of a copper backplane. As the resonator approaches the backplane, the resonant frequency increases and the radiated power is suppressed, enhancing the Q of the resonance by a factor Qe. Experimentally, the Q of the resonator is enhanced by an optimum value of 4.5 when the midplane of the disk is about 0.5 cm above the copper backplane. Here the resonant frequency is shifted to 10.45 GHz. © 1996 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.361385
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