A Miniaturized 878 MHZ Slotted Meander Line Monopole Antenna for Ultra High Frequency Applications

Abstract

Abstract-A slotted meander line printed monopole antenna for low frequency applications of 878 MHz is presented. The novelty of the design is obtained by evaluating numerous slots and meander line that produces a new structure of double E-shaped meander line antenna backed by a defected partial ground plane. The operating frequency of the conventional printed monopole antenna is greatly reduced by the presence of the slots and meander line which lead to the reduction of the antenna size. The size reduction of 70% compared to the conventional reference antenna is achieved in this study. The antenna has a simple structure and small antenna size of 46.8 mm × 74 mm or 0.137λ 0 × 0.217λ 0 . The antenna has been fabricated on a low-cost FR4 substrate and measured to validate the simulation performances. Measured results display that the proposed antenna produces omnidirectional radiation pattern of impedance bandwidth of 48.83 MHz and the maximum gain of −1.18 dBi.

A Miniature RFID Antenna at UHF Band using Meander-Line Technique

“…Table 6 presents comparison of the various antennas with the same substrate (FR-4 1.6 mm in thick) recently reported in the literature with the proposed design for UHF RFID application in terms of size, resonant frequency, bandwidth, and gain. It is discovered that the impedance bandwidth and gain of the proposed antenna are higher compared to [23]- [25]. We can conclude that the proposed and validated antenna has a simple structure of smaller size approaching electrically small antenna, presents good performances in comparison with other structures validated in literature, and easier to fabricate.…”