A Miniaturized Omni-directional Negative Permittivity Zeroth-Order Resonance Antenna

摘要

An Evolved Negative permittivity (ENG) Zeroth-Order Resonance (ZOR) antenna with miniaturized size and ultra-low profile is presented in this paper. By adding parasitic patch and loading meander line in steps, the antenna ZOR operational frequency is decreased from 5.084 GHz to 177.8685 MHz, while keeping the overall dimensions unchanged; which is equivalent to about twenty-eight times electrical size reduction based on the equivalent circuit models. Moreover, the proposed miniaturized antenna with omni-directional radiation performance is promising for the specific low-power radio applications, such as short range remote control system and household security system.