A Novel Printed Monopole Antenna With Folded Stepped Impedance Resonator Loading

Abstract

In this paper, a novel printed monopole antenna with folded stepped impedance resonator (SIR) loading is proposed, designed and fabricated with a standard printed circuit board process. The antenna comprises of a printed monopole antenna and a folded SIR with internal coupling etched on the back of the antenna. By loading this folded SIR as a near-field resonant parasitic (NFRP) element, the resonant frequency of the antenna can be reduced by the strong coupling between the folded SIR and the radiation patch of the printed monopole. After reviewing the theoretical analysis of the proposed printed monopole antenna, a prototype antenna has been fabricated and measured. The simulated results agree well with the measured results, and the prediction performance of the antenna is verified. Therefore, the proposed method in this paper is a promising candidate for printed monopole antenna design. INDEX TERMS Printed monopole antenna, near-field resonant parasitic (NFRP), folded stepped impedance resonator (SIR), coupling.

Miniaturized Broadband-Multiband Planar Monopole Antenna in Autonomous Vehicles Communication System Device

“…This table uses the journal papers of the past two years for antenna design comparison. The proposed antenna design has a larger bandwidth than the literature [26][27][28][29][30]. The antenna's gain also has a comparable measurement result to the literature [26][27][28][29][30].…”

“…The proposed antenna design has a larger bandwidth than the literature [26][27][28][29][30]. The antenna's gain also has a comparable measurement result to the literature [26][27][28][29][30]. The antenna size of the proposed antenna is smaller than in the literature [26][27][28][29][30].…”

“…The validation tool employed an EM simulator for simulation results and a vector network analyzer as the equipment of Agilent E7071C for measurement results. The measured impedance bandwidths are defined by 3:1 VSWR, widely used for the internal WWAN antenna design specification [26][27][28][29][30]. The antenna bandwidth defined by VSWR is 3:1 to match the CTIA specification standard with the built-in WWAN antenna design integrated RF active circuit application.…”

A Miniaturized Planar Monopole Antenna Based on a Coupling Structure for Compact Mobile Internet of Things (IoT) and Electric Vehicles (EVs) Device Applications in 5G, LTE, WLAN, WiMAX, Sirius/XM Radio, V2X, and DSRC Wireless Systems

“…e proposed antenna is also compared with other literatures [55][56][57][58][59] for the last three years and is reported in Table 2, which is compared with the parameters of antenna size, operation frequency range, bandwidth, and application. Compared with the overall antenna size, the overall antenna size we designed is smaller than [55,56]. However, if we use system ground size to compare, its system ground size is [55,59], and this antenna size is smaller than [55][56][57][58][59].…”

“…Compared with the overall antenna size, the overall antenna size we designed is smaller than [55,56]. However, if we use system ground size to compare, its system ground size is [55,59], and this antenna size is smaller than [55][56][57][58][59]. Comparing the operating frequency and bandwidth, this design is the most continuous and extremely wideband design.…”