Left-handed materials are artificial materials that have negative permittivity and negative permeability simultaneously, which provide unique new properties in comparison with the traditional right-handed (RH) materials.
Composite Right/Left-Handed (CRLH) transmission line (TL) structure, which is composed of the series interdigital capacitor and the shunt inductor, is fabricated to implement the left-handed properties in reality. In this thesis, the CRLH TL theory is interpreted carefully. The verification is done by the ADS momentum simulation. The good agreement between the theoretical expectation and the simulation results is observed.
Zeroth-order resonator (ZOR) CRLH antenna has a unique characteristic that its resonate frequency is independent on the its physical length. Thus small compact antennas can be produced.
The ZOR CRLH antennas operating at 915-MHz are designed, simulated, fabricated and tested. A systematic method to fabricate the ZOR CRLH antenna is introduced. The characteristics of the ZOR antenna are further researched.