Transmission line and transmission line resonator

Abstract

A transmission line of the present invention produces a small loss and offers good production efficiency at low cost. In the structure of the transmission line, two strip line electrodes are stacked via a dielectric layer, while being mutually connected by via holes disposed at distances not exceeding ¼ of the wavelength of the highest frequency used in the longitudinal direction of the line electrodes. In addition, first ground electrodes are disposed separated by other dielectric layers with respect to the line electrodes. With this arrangement, current concentration at the side edges of the line electrodes is reduced and losses in the transmission line can thereby be reduced. Moreover, since the transmission line can be produced in the same process, production efficiency can be enhanced to achieve cost reduction.

Dependencies are inferred from the claim text.