Abstract
An electrically small and low profile linear antenna with a meander line using a Capacitive feed (C-feed) structure is presented. The meander line, which is the radiating element, is electromagnetically coupled with a metallic feed plate placed in between the meander line and a back metal (ground). In this structure, the imaginary part of the input impedance can be easily controlled to zero at the resonance frequency even if connected to larger grounds such as SMA connectors. In addition, the leakage current on the outer surface of the coaxial cable is sufficiently suppressed. Also, the realized gain of stacked flip horizontal meander antenna has increased by around 7dBi by compared to C-feed antenna.
