Miniaturization of patch antennas with new artificial magnetic layers

Abstract

A new type of high-impedance surfaces (HIS) has been introduced by C.R. Simovski et al. recently. In this paper, we propose to use such layers as artificial magnetic materials in the design of patch antennas. The new HIS is simulated and patch antennas partially filled by these composite layers are measured in order to test how much the antenna dimensions can be reduced. In order to experimentally investigate the frequency behavior of the material, different sizes of the patches are designed and tested with the same material layer. Also the height of the patch is changed in order to find the best possible position for minimizing the antenna size. This composite layer of an artificial magnetic material has made the antenna smaller while keeping the bandwidth characteristics of the antenna about the same. About 40% of size reduction has been achieved.Index Terms-artificial magnetic material, patch antenna, antenna miniaturization, high-impedance surface.July 12, 2018 version.

Radiation Characteristics of a Microstrip Patch Over an Electromagnetic Bandgap Surface

“…3. Table I also suggests that at a chosen operating frequency, the patch size can be much smaller with an EBG surface as was reported previously [20], [21].…”

“…An open-circuit microstrip line at the EBG surface is proximity-coupled to the radiating patch. Resonant frequencies for a set of square radiation patch lengths (10,20,30,40,50, and 60 mm) are found from the return loss dip under a frequency sweep.…”

A Novel Design of Patch Antenna using U-Slot and Defected Ground Structure

“…Use of synthetic magnetic conductors resulted with lowered gain at desired resonant frequencies [2].Using artificial magnetic conductors, nearly 40% of miniaturization is achieved at expense of efficiency [3]. Introducing incensement in electrical permittivity of a substrate, size reduction can be achieved but at the bandwidth gets worse [4].…”

Experimental verification of metamaterial loaded small patch antennas

“…The unusual properties and ability to control the electromagnetic field enabled by metamaterials inspired researchers to design conceptually new antennas (Ziolkowski and Kipple, 2003;Alù et al, 2007b;Ziolkowski and Erentok, 2006;Erentok and Ziolkowski, 2008;Alici and Ozbay, 2007a, b;Alici et al, 2010;Barbuto et al, 2012;Qureshi and Eleftheriades, 2005;Ermutlu et al, 2005;Ikonen et al, 2006;Buell et al, 2006). Several approaches have been used, based on different particular metamaterials: double-negative (DNG) (Ziolkowski and Kipple, 2003), single-negative (SNG) (Alù et al, 2007b), epsilon-negative (ENG) (Ziolkowski and Erentok, 2006;Erentok and Ziolkowski, 2008), mu-negative (MNG) (Ziolkowski and Erentok, 2006;Erentok and Ziolkowski, 2008) metamaterials; single (Alici and Ozbay, 2007a, b) and dual (Alici et al, 2010) mode split ring resonator antennas; single metamaterial inclusions or arrays of inclusions Barbuto et al, 2012;Qureshi and Eleftheriades, 2005); metasurfaces (Ermutlu et al, 2005); magneto-dielectric materials (Ikonen et al, 2006;Buell et al, 2006).…”

“…Several approaches have been used, based on different particular metamaterials: double-negative (DNG) (Ziolkowski and Kipple, 2003), single-negative (SNG) (Alù et al, 2007b), epsilon-negative (ENG) (Ziolkowski and Erentok, 2006;Erentok and Ziolkowski, 2008), mu-negative (MNG) (Ziolkowski and Erentok, 2006;Erentok and Ziolkowski, 2008) metamaterials; single (Alici and Ozbay, 2007a, b) and dual (Alici et al, 2010) mode split ring resonator antennas; single metamaterial inclusions or arrays of inclusions Barbuto et al, 2012;Qureshi and Eleftheriades, 2005); metasurfaces (Ermutlu et al, 2005); magneto-dielectric materials (Ikonen et al, 2006;Buell et al, 2006).…”