| Summary: | 碩士 === 長庚大學 === 電子工程研究所 === 93 === The concept of electromagnetic wave was used to improve a planar rectangular resonator to a meander planar coaxial rectangular resonator. Thus, the size of the resonator can be reduced while still achieving high Q factor. We also compare the characteristics of this resonator to the following common resonators: 1. the microstripline-fed planar rectangular resonator, 2. the gap-coupled half-wavelength microstripline resonator; 3. the parallel quarter-wavelength microstripline resonator and 4. the microstripline-fed dielectric resonator. In this thesis, the resonant frequency is chosen to be 5 GHz. Originally, silicon substrate and copper microstriplines were used in the simulation. However, we found that the loss was too high. Therefore, high temperature superconducting thin-film microstripline and MgO substrates were used in later simulation. It is difficult and costly to fabricate the resonator using these materials. Only a simplified version built by FR4 substrate was fabricated and measured to compare with simulation results.
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