To provide a planar resonator in which an electromagnetic wave field is variably controlled to facilitate the switching of a degenerated orthogonal mode, in particular.
The planar resonator is provided in which a high-frequency resonator employing an electromagnetic wave field in a TM mode is formed of a planar circuit conductor provided on one principal surface of a substrate and a ground conductor which is provided on the other principal surface of the substrate and is not connected with the planar circuit conductor in a DC manner, the planar resonator including two resonance modes degenerated in an orthogonal direction, wherein an opening smaller than the outer area of the ground conductor or the planar circuit conductor is formed at at least either the planar circuit conductor or the ground conductor, all the surfaces in the opening are confronted within the outer area of the ground conductor or the planar circuit conductor, the ground conductor or the planar circuit conductor in the orthogonal direction in the opening is electrically connected by a switching element which electronically control the electromagnetic wave field to select any one of the two resonance modes, and only one of the two resonance mode is operated.
| JP2790179 | Description: Dielectric Coaxial Resonator |
| WO/2020/066621 | BANDPASS FILTER, COMMUNICATION DEVICE, AND RESONATOR |
| JP6783701 | Sensing element |
NISHIYAMA EISUKE
TANAKA TAKAYUKI
ASAMURA FUMIO
OITA TAKEO
AIKAWA MASAYOSHI