ACCURATE EQUIVALENT CIRCUIT FOR ETCHED RESONATOR WITH EFFECTIVE NEGATIVE PERMITTIVITY

摘要

This latter demonstrates an accurate equivalent circuit for a negative permittivity resonator using single-cell complementary split ring resonator underneath a microstrip line that introduces two attenuation poles in desired frequencies. The proposed equivalent circuit consists of lumped elements that can be accurately extracted from the measured S-parameters. Good agreement with response of equivalent circuit, electromagnetic simulation, and measurement is demonstrated.